34th week of 2018 patent applcation highlights part 31 |
Patent application number | Title | Published |
20180238145 | DIRECTIONAL MICRO LATERAL DRILLING SYSTEM - A flush od directional drilling apparatus for directionally drilling a lateral bore from a main bore, has a casing in the main bore, the casing having at least one lateral exit port, with a fragmentable plug, flush lateral directional drilling tube, and a pre-installed whipstock guide for guiding the flush lateral directional drilling tube into the lateral exit port to drill a directional lateral hole from the lateral exit port. | 2018-08-23 |
20180238146 | CALIPER STEERABLE TOOL FOR LATERAL SENSING AND ACCESSING - Lateral wellbores intersecting a main wellbore are located with calipers on a tool. Each caliper includes first and second segments pinned to one another. Ends of each first segment distal from the pinned connections pivotingly attach to the tool. Ends of each second segment distal from the pinned connections couple with shuttles that slide axially along the tool. Biasing means urge the shuttles toward the pivoting connections of the first elongated segments to urge the pinned connections radially outward. When downhole and away from a lateral wellbore, walls of the main wellbore prevent the calipers from projecting into a radial maximum extension. When adjacent a lateral wellbore, calipers facing the lateral wellbore are extendable to a maximum radial extension. Distances between the pinned connections and tool are estimated with sensors; and openings to lateral wellbores are detectable based on the estimated distances. A steering arm optionally steers the tool downhole. | 2018-08-23 |
20180238147 | Systems and Methods For Optimization Of The Number Of Diverter Injections And The Timing Of The Diverter Injections Relative To Stimulant Injection - The disclosure pertains to the increasing the amount of stimulated efficiency and production from a given well area by determining a number of diverter slugs and the timing for the injection of the slugs for the given well area. A number of data sets are determined using Monte Carlo analysis, each data set including a quantity of diversion slugs and the timing for the injection of the diversion slugs. A simulation is performed on a plurality of the data sets to determine the production outcome of employing the data set in a stimulation job. The results of the simulation are used to determine the optimized data set for the stimulation job. | 2018-08-23 |
20180238148 | Method For Computing Lithofacies Probability Using Lithology Proximity Models - Methods and systems are presented in this disclosure for computing lithofacies probabilities by using lithology proximity models. Log data related to a plurality of depths of a formation penetrated by a wellbore can be first gathered. Then, for each depth of the formation, distance measures of the log data relative to lithofacies responses of the lithology proximity models can be obtained. The distance measures can be mapped into probability values, and a probability that the particular formation depth belongs to a specific lithofacies can be computed by combining the probability values. The probabilities that various formation depths belong to the lithofacies from the set of lithofacies represent lithofacies earth model of the wellbore, which can be utilized for variety of operations related to the wellbore. | 2018-08-23 |
20180238149 | Connector, Diverter, And Annular Blowout Preventer For Use Within A Mineral Extraction System - A connector for receiving flow therethrough includes a body with a seat including a keyed groove, a stab including a key, and a locking member to retain the key within the keyed groove of the seat. | 2018-08-23 |
20180238150 | Sand Control Screen Assemblies and Associated Methods of Manufacturing - Embodiments of the disclosure are a method of non-line-of-sight coating of a sand screen for use in wellbores during the production of hydrocarbon fluids from subterranean formations. Also disclosed is a system comprising a sand screen with one or more components that have uniformly coated internal and external surfaces. | 2018-08-23 |
20180238151 | METHOD AND APPARATUS FOR BI-DIRECTIONALLY ANCHORING A LINER IN A BOREHOLE - A technique facilitates hanging of a liner in a borehole. According to the technique, a liner hanger and a liner may be deployed downhole into a borehole. A wellbore anchoring device of the liner hanger is initially actuated to engage a surrounding surface and to resist downward movement of the liner. Additionally, a hold down anchor is subsequently actuated to resist upward movement of the liner. The hold down anchor may be released via mechanical manipulation of the liner hanger. | 2018-08-23 |
20180238152 | FLOW METER WELL TOOL - A flow meter well tool includes a volumetric well flow meter to be positioned in a wellbore. The volumetric well flow meter includes a hollow cylindrical tubing to be positioned in the wellbore. The tubing splits well fluid through the wellbore into an internal fluid through the volumetric well flow meter and an external fluid through an annulus between the wellbore and the volumetric well flow meter. The hollow cylindrical tubing includes an internal portion, where an internal cross-sectional area of the internal portion is less than an internal cross-sectional area of the hollow cylindrical tubing. | 2018-08-23 |
20180238153 | Use of Gaseous Phase Natural Gas as a Carrier Fluid During a Well Intervention Operation - Methods for servicing a hydrocarbon well using natural gas are provided. The method can include preparing a working fluid comprising about 5 vol % to about 100 vol % of natural gas. A quantity of the natural gas in the working fluid can be sufficient to form a heterogeneous phase well servicing mixture of a gaseous phase natural gas and a solid or liquid phase recovery target material under specified well intervention conditions. During the well servicing operation and under the specified well intervention conditions, the working fluid can be injected into the well and mixing the working fluid with the recovery target material in the well to form the heterogeneous phase well servicing mixture. The natural gas can be in a gas phase and can serve as a carrier fluid for the recovery target material. At least a portion of the heterogeneous phase well servicing mixture can be recovered at surface. | 2018-08-23 |
20180238154 | CONDITIONING A SUBTERRANEAN FORMATION - Techniques for hydraulically fracturing a geologic formation include circulating a proppant-free hydraulic fracturing liquid into a wellbore that is formed from a terranean surface into a geologic formation within a subterranean zone that is adjacent the wellbore; fluidly contacting the geologic formation with the proppant-free hydraulic fracturing liquid for a specified duration of time; and subsequent to the specified duration of time, circulating a hydraulic fracturing liquid that includes proppant into the wellbore to fracture the geologic formation. | 2018-08-23 |
20180238155 | ENHANCING COMPLEX FRACTURE GEOMETRY IN SUBTERRANEAN FORMATIONS, SEQUENCE TRANSPORT OF PARTICULATES - Methods including introducing a high-viscosity treatment fluid into a subterranean formation through an opening and applying incrementally increased fracturing rate steps (IIFRSs) to create or enhance a dominate fracture, wherein between each IIFRS a downhole pressure slope over time will increase, decline, or stabilize at a HVTF measured pressure slope. Further evaluating the HVTF measured pressure slope prior to applying a subsequent IIFRS. Performing a particulate sequence transport operation with a first, second, and third low-viscosity treatment fluid (LVTF), wherein the LVTFs collectively create or enhance at least one near-wellbore secondary azimuth fracture and at least one far-field secondary azimuth fracture extending from the dominate fracture, and further propping the dominate fracture, near-wellbore, and far-field secondary azimuth fractures with the particulates. | 2018-08-23 |
20180238156 | BOTTOM HOLE ASSEMBLY FOR WELLBORE COMPLETION - A Bottom Hole Assembly (BHA) tool and methods of downhole fluid management are disclosed. The BHA is deployed on a conveyance string to access a completion string and forming a tool annulus therebetween. A first assembly having a first bore fluidly connected to the conveyance string. A second assembly supports a packer for releasably sealing to the completion string, and a third assembly supporting a packer actuator thereon, the second assembly telescopically movable within the third assembly for forming a resettable packer releasably sealable to the completion string. A bypass valve is formed between the first and second assembly. Closing of the bypass valve directs fluid through a treatment port uphole of the resettable packer to the tool annulus and opening of the bypass valve bypasses fluid about the resettable packer. The packer actuator can further comprise an anchor for releasably anchoring to the completion string. | 2018-08-23 |
20180238157 | PERMEABLE CEMENT STONE FRACTURING EXPLOITATION METHOD FOR NON-CONVENTIONAL OIL AND GAS LAYER - Disclosed is a permeable cement stone fracturing exploitation method for non-conventional oil and gas layer such as tight oil and gas, shale gas, coal-bed gas, combustible ice and so on. The method comprises the following complementary processes and embodiments: transporting, storing and pumping process for supercritical carbon dioxide; transporting, storing, preparing and pumping process for fracturing cement slurry; process for mixing the supercritical carbon dioxide and the cement slurry; process of fracturing the supercritical carbon dioxide and the cement slurry on ground; process of forming a permeable cement stone under the ground; and so on. The present invention provides a method for non-conventional oil and gas layer fracturing exploitation without using conventional fracturing proppant and fracturing fluid, having advantages of no flow-back fluid, less water, less material, less equipment, smaller area of well site, lower cost, better stimulation effect, environmental protection, and wide application. | 2018-08-23 |
20180238158 | METHODS OF CONTROLLING WELL BASHING - Methods of preventing or minimizing communication between adjacent wells are described. The methods include providing a pre-pad fluid, pad fluid, and/or slurry including a material, introducing the pre-pad fluid, pad fluid, and/or slurry and material into a first well adjacent a second well, allowing the material to block fractures in the first well to prevent or minimize communication between the first well and the second well, stimulating the second well after blocking the fractures, and recovering a formation fluid from the first well, the second well, or both. The material includes one or more of a conformance chemical, diverting agent, or a combination thereof. | 2018-08-23 |
20180238159 | METHODS OF PROPPING CREATED FRACTURES AND MICROFRACTURES IN TIGHT FORMATION - A method of propping created fractures and microfractures in tight formation. The method includes injecting into a wellbore a first pad fluid stage; injecting into the wellbore a second pad fluid stage; injecting into the wellbore a diverting agent; and injecting into the wellbore a main proppant slurry stage; wherein the first pad fluid stage includes an aqueous-based fluid at a rate above the fracturing gradient to create a fracture, wherein the second pad fluid stage includes an aqueous-based fluid and a low concentration of a proppant mixture including a slurry of small proppant materials and/or a slurry of conventional proppant materials to extend the fracture and open up secondary induced fractures, and wherein the main proppant slurry stage includes an aqueous-based fluid and a proppant with a larger size than the small proppant particles in the second pad fluid stage. | 2018-08-23 |
20180238160 | ENHANCING COMPLEX FRACTURE NETWORKS IN SUBTERRANEAN FORMATIONS - Methods including creating or extending a first main fracture with a pad fluid into a subterranean formation, wherein the pad fluid is a high-viscosity fluid; alternatingly introducing a micro-proppant fluid with the pad fluid, wherein the micro-proppant fluid is a low-viscosity fluid comprising micro-sized proppant particulates; creating or extending a first branch fracture extending from the first main fracture with the alternatingly introduced micro-proppant fluid, whereby at least a portion of the micro-sized proppant particulates enter into the first branch fracture and form at least a partial monolayer of micro-sized proppant particulates therein; and introducing a macro-proppant fluid through the first opening at a second flow rate, wherein the macro-proppant fluid is a low-viscosity fluid comprising macro-sized proppant particulates, and whereby at least a portion of the macro-sized proppant particulates enter into the first main fracture and form a proppant pack therein. | 2018-08-23 |
20180238161 | METHOD FOR HYDRAULIC FRATURING (VARIANTS) - A method of stimulating the inflow of oil and/or gas from the wellbore, in particular, a hydraulic fracturing method, is disclosed. The method of hydraulic fracturing comprises the stages: injecting a slug of a proppant-free fluid through the well into a formation for hydraulic fracture creation and propagation; injecting a slug of proppant-laden slurry into the formation to create a proppant pack in the hydraulic fracture; injecting a slug of slurry that contains a fluid and the polyelectrolyte complex-based proppant aggregates to create permeable channels in the near-wellbore area of the hydraulic fracture; injecting a slug of a displacement fluid into the well. This sequence of operations allows avoiding the proppant slurry overdisplacement deep into the hydraulic fracture, maintaining high fracture conductivity, and increasing the well productivity. | 2018-08-23 |
20180238162 | METHOD AND APPARATUS FOR AUTOMATED DRILLING RIG SHEAVE FRICTION CALIBRATION - A method and autodriller for monitoring hookload in a well drilling system that measures raw hookload; determines a velocity of a travelling block; holds the travelling block in a non-lowering state for a first period of time; lowers the travelling block for a second period of time; calculates contribution to hookload of a component linear in the block velocity; calculates contribution to hookload of a component linear in a direction (sign) in the block velocity; and corrects measured raw hookload by the calculated contributions. | 2018-08-23 |
20180238163 | APPARATUS AND METHOD FOR ESTIMATING AND FOR CONTROLLING A ROTARY SPEED OF A DRILL BIT - Apparatus and method for estimating and for controlling a rotary speed of a drill bit disposed at a distal end of a drillstring. One method comprises identifying one or more parameters of a lumped one-degree-of-freedom (1DOF) model which accounted for one or more well parameters and drillstring parameters, linearizing the lumped 1DOF model for a desired state, wherein a discrete state space model and an associated output are defined using a discrete equation, calculating an estimated rotary speed of the drill bit by applying a predict step and an update step to the linearized lumped 1DOF model, providing a controller input representing a difference between a desired rotary speed and the estimated rotary speed of the drill bit to a polynomial controller designed based on the lumped 1DOF model, and adjusting the rotary speed of the drill bit utilizing the polynomial controller based on the controller input. | 2018-08-23 |
20180238164 | ENHANCING DRILLING OPERATIONS WITH COGNITIVE COMPUTING - A cognitive computing system for enhancing drilling operations, in some embodiments, comprises: neurosynaptic processing logic; and one or more information repositories accessible s to the neurosynaptic processing logic, wherein the neurosynaptic processing logic performs a probabilistic analysis of one or more real-time drilling operations measurements, one or more resources obtained from said one or more information repositories, and one or more drilling operations simulations that account for said one or more real-time drilling operations measurements, wherein the neurosynaptic processing logic controls a drilling operation based at least in part on said probabilistic analysis. | 2018-08-23 |
20180238165 | TUBULAR WEAR VOLUME DETERMINA USING ELASTICITY CORRECTION - Tubular elasticity is applied to determine tubular wear volume. In general, a torque and drag model is applied to calculate the dynamic stretch of the inner tubular string (e.g., drill string). The dynamic stretch is then integrated into a casing wear model to improve the accuracy of the calculated wear and its corresponding position along the outer tubular string (e.g., casing string). | 2018-08-23 |
20180238166 | ARRANGEMENT AND METHOD FOR DEPLOYING DOWNHOLE TOOLS TO LOCATE CASING COLLAR USING XY MAGNETOMETERS - A method and apparatus for locating a collar of a casing of a wellbore is disclosed. A sensor for measuring a magnetic field is conveyed through the casing on a tool string. A physical model is formed of a process of obtaining a magnetic measurement of the casing with the sensor. A simulation of the physical model is run through a processor to select a design parameter of the tool that allows for using the sensor at a determined value of an operational parameter for obtaining the measurement at a selected signal-to-noise ratio. The tool is conveyed into the wellbore and the sensor set to the determined value of the operational parameter. The magnetic measurement of the casing is obtained using the sensor, and the collar is located using the obtained magnetic measurement. | 2018-08-23 |
20180238167 | METHOD AND APPARATUS FOR IDENTIFYING FLUIDS BEHIND CASING - Determining a type of annular material in a wellbore comprises measuring an acoustic noise of one or more reference materials and thereby generating a corresponding one or more acoustic profiles, monitoring the annular material with an acoustic sensor positioned in the wellbore and thereby obtaining an acoustic response of the annular material, comparing the acoustic response with the one or more acoustic profiles using a processor communicably coupled to the acoustic sensor, and characterizing the annular material based on the comparison of the acoustic response and the one or more acoustic profiles. | 2018-08-23 |
20180238168 | CONTRAST ENHANCEMENT AGENTS FOR SUBTERRANEAN TREATMENT FLUIDS - Systems and methods for detecting or monitoring treatment fluids in subterranean formations are provided. In certain embodiments, the methods comprise: providing an enhanced treatment fluid that comprises at least a base fluid and one or more contrast enhancement agents, which may include dielectric materials, magnetic materials, dispersive materials, and/or any combination thereof; and introducing the enhanced treatment fluid into at least a portion of a well bore penetrating a portion of a subterranean formation in the course of certain operations in the well bore. | 2018-08-23 |
20180238169 | REAL-TIME CONTROL OF DIVERTERS - In some aspects, the present disclosure includes systems and methods for determining and delivering diverting material to dominant fractures in a stage of a subterranean formation. The method includes creating or extending a plurality of fractures in a stage of a subterranean formation; pumping fracturing fluid to the plurality of fractures; identifying dominant fractures among the plurality of fractures; determining a desired amount of diverters to deliver to the dominant fractures; and pumping the determined amount of diverters to the dominant fractures so as to redistribute the flow of fracturing fluid between the plurality of fractures. | 2018-08-23 |
20180238170 | ASYMMETRIC PICK TOOL WITH AN ASPECT RATIO BETWEEN LEADING AND TRAILING EDGES - A pick tool comprising a strike tip and a pick tool body, the pick tool body including a non-rotating strike tip at a first end of the pick tool body. A shaft is provided at a second end of the pick tool body, the shaft being configured to pass through an opening in a surface of a pick tool holder, the shaft being configured in use to be non-rotationally attached to the pick tool holder. The shaft projects from a pick tool abutment surface such that, when the pick tool is attached to the pick tool holder, the abutment surface abuts the pick tool holder surface. The abutment surface has an aspect ratio between its length and width of between 1.5:1 and 3:1. The pick tool body comprises a leading edge and a trailing edge, the leading edge being, in use, the edge that first contacts a formation, the trailing edge having an angle of less than 18° between a main axis of the pick tool and an axis from the strike tip to the abutment surface at the trailing edge. | 2018-08-23 |
20180238171 | METHOD AND APPARATUS FOR CREATING A VOID FOR UNDERGROUND MINING - A method and an apparatus for creating a void, low-density fill or combination of void and low-density fill for underground mining having at least one module of formwork to be positioned in an open slope of an underground mine prior to carrying out a backfilling operation. | 2018-08-23 |
20180238172 | TURBINE ENGINE TURBINE ROTOR WITH VENTILATION BY COUNTERBORE - The invention relates to a turbine rotor, of a low-pressure turbine of a turbine engine for example, comprising:
| 2018-08-23 |
20180238173 | METHOD OF MANUFACTURING TURBINE AIRFOIL AND TIP COMPONENT THEREOF - Methods of manufacturing or repairing a turbine blade or vane are described. The airfoil portions of these turbine components are typically manufactured by casting in a ceramic mold, and a surface made up of the cast airfoil and at the least the ceramic core serves as a build surface for a subsequent process of additively manufacturing the tip portions. The build surface is created by removing a top portion of the airfoil and the core, or by placing an ultra-thin shim on top of the airfoil and the core. The overhang projected by the shim is subsequently removed. These methods are not limited to turbine engine applications, but can be applied to any metallic object that can benefit from casting and additive manufacturing processes. The present disclosure also relates to finished and intermediate products prepared by these methods. | 2018-08-23 |
20180238174 | FAN - A fan for a gas turbine engine, the fan comprising a first set of fan blades and a second set of fan blades arranged circumferentially around a hub. Each of the fan blades of the first and second set comprises an organic matrix composite body and a leading edge member connected to the body. The leading edge member of the first set of fan blades has a mass less than the leading edge member of the second set of fan blades. | 2018-08-23 |
20180238175 | Method and Device for Retaining Position of a Consumable Core - A method and device for retaining position of a consumable core during composite article manufacturing is taught herein by inserting a consumable core having a consumable core body and a plurality of retention artifacts into a composite precursor hollow feature of a composite precursor structure. Then positioning the consumable core such that the plurality of retention artifacts projecting from the consumable core exterior surface at least partially engage with a substantially spatially replicate surface geometry in the composite precursor hollow feature. The consumable core is then consumed as a soluble infiltrant to form a composite article. | 2018-08-23 |
20180238176 | INTERNALLY COOLED TURBINE AIRFOIL WITH FLOW DISPLACEMENT FEATURE - A turbine airfoil ( | 2018-08-23 |
20180238177 | FAN PLATFORM WITH STIFFENING FEATURE - A fan blade platform is provided. The fan blade platform may include a wall, a first sidewall extending from the flowpath to a circular member, and a second sidewall extending from the flowpath to the circular member. A stiffening member may also extend from the circular member to the flowpath and be formed integrally with the first sidewall, the second sidewall, and the flowpath. | 2018-08-23 |
20180238178 | HYBRID CERAMIC MATRIX COMPOSITE COMPONENTS FOR GAS TURBINES - A hybrid component ( | 2018-08-23 |
20180238179 | COMBUSTOR LINER PANEL END RAIL WITH CURVED INTERFACE PASSAGE FOR A GAS TURBINE ENGINE COMBUSTOR - A combustor for a gas turbine engine includes a support shell; a first liner panel mounted to the support shell via a multiple of studs, the first liner panel including a first rail that extends from a cold side of the first liner panel such that the rail is non-perpendicular to the cold side and includes a concave surface to at least partially form a curved interface passage; and a second liner panel mounted to the support shell via a multiple of studs, the first liner panel including a second rail that extends from a cold side of the second liner panel and includes a convex surface to at least partially form the curved interface passage. | 2018-08-23 |
20180238180 | TURBINE COMPONENTS AND METHODS OF MANUFACTURING - At least one turbine component for a gas turbine includes a base component formed by casting and an article. The base component includes a platform. The article on the upper surface of the platform is formed by additive manufacturing. The article has a proximal face sized and shaped to cover at least a portion of the upper surface of the platform of the turbine component and a contoured distal face opposite the proximal face. The contoured distal face has a contour surface serving as at least a portion of a hot gas path surface of the turbine component. The contour surface is arranged and disposed to provide a controlled flow pattern of a working fluid across the contour surface based on a mounting location of the turbine component in a turbine. Methods of manufacturing articles and turbine components are also disclosed. | 2018-08-23 |
20180238181 | Flow Path Assembly with Airfoils Inserted Through Flow Path Boundary - Flow path assemblies of gas turbine engines are provided. For example, a flow path assembly comprises an inner wall and a unitary outer wall that includes a combustor portion extending through a combustion section of the gas turbine engine and a turbine portion extending through at least a first turbine stage of a turbine section of the gas turbine engine. The combustor portion and the turbine portion are integrally formed as a single unitary structure. The flow path assembly further comprises a plurality of nozzle airfoils, each nozzle airfoil having an inner end radially opposite an outer end. The inner wall or the unitary outer wall defines a plurality of openings therethrough, and each opening is configured for receipt of one of the plurality of nozzle airfoils. Methods of assembling flow path assemblies also are provided. | 2018-08-23 |
20180238182 | Methods and Features for Positioning a Flow Path Inner Boundary within a Flow Path Assembly - Flow path assemblies and methods for assembling a flow path assembly of a gas turbine engine are provided. For example, a flow path assembly comprises a unitary outer wall including combustor and turbine portions that are integrally formed as a single unitary structure; a single piece, generally annular inner band; and a plurality of nozzle airfoils extending from the unitary outer wall to the inner band. Each nozzle airfoil interfaces with the inner band to position the inner band within the assembly. An exemplary assembly method comprises inserting an inner band into a flow path having a unitary outer wall as its outer boundary; inserting a plurality of nozzle airfoils into the flow path; and securing the nozzle airfoils with respect to the unitary outer wall. The inner band interfaces with an inner end of each nozzle airfoil to radially locate the inner band within the flow path. | 2018-08-23 |
20180238183 | Flow Path Assembly with Pin Supported Nozzle Airfoils - Flow path assemblies for gas turbine engines are provided. For example, a flow path assembly comprises an inner wall and an outer wall defining an opening therethrough, as well as a nozzle airfoil having an inner end radially opposite an outer end that is positioned within the opening defined in the outer wall such that the outer end projects radially outwardly from the outer wall. The flow path assembly also comprises a pin and a first support member. The pin extends from the first support member to the outer end of the nozzle airfoil to support the nozzle airfoil. In some embodiments, the outer end of the nozzle airfoil defines a flange configured to receive the pin and a radial stop configured to press against a radially outward external support, and the pin is configured to transfer a load on the nozzle airfoil to an external structure. | 2018-08-23 |
20180238184 | Methods and Features for Positioning a Flow Path Assembly within a Gas Turbine Engine - Flow path assemblies having features for positioning the assemblies within a gas turbine engine are provided. For example, a flow path assembly comprises an inner wall and a unitary outer wall that includes an integral combustion portion and turbine portion, the combustor portion extending through a combustion section of the gas turbine engine and the turbine portion extending through at least a first turbine stage of a turbine section of the gas turbine engine. The flow path assembly further comprises at least two positioning members for radially centering the flow path assembly within the gas turbine engine. The positioning members extend to the flow path assembly from one or more structures external to the flow path assembly, constrain the flow path assembly tangentially, and allow radial and axial movement of the flow path assembly. Other embodiments for positioning flow path assemblies also are provided. | 2018-08-23 |
20180238185 | Methods and Assemblies for Attaching Airfoils within a Flow Path - Flow path assemblies for gas turbine engines are provided. For example, a flow path assembly comprises an inner wall; a unitary outer wall; and a plurality of nozzle airfoils having an inner end radially opposite an outer end. The unitary outer wall defines a plurality of outer pockets each configured for receipt of the outer end of one of the nozzle airfoils, and the inner wall includes defines a plurality of inner pockets each configured for receipt of the inner end of one of the plurality of nozzle airfoils. A portion of each inner pocket is defined by a forward inner wall segment and an aft inner wall segment. In another embodiment, a flow path assembly comprises an inner wall defining a plurality of bayonet slots that each receive a bayonet included with each of a plurality of nozzle airfoils that are integral with a unitary outer wall. | 2018-08-23 |
20180238186 | Rainbow Flowpath Low Pressure Turbine Rotor Assembly - The present disclosure is directed to a gas turbine engine defining a radial direction, a longitudinal direction, and a circumferential direction, an upstream end and a downstream end along the longitudinal direction, and an axial centerline extended along the longitudinal direction. The gas turbine engine includes a low pressure (LP) turbine defining an outer flowpath. The outer flowpath defines a first outer flowpath radius at an upstream-most end of the LP turbine, a last outer flowpath radius disposed at a downstream-most end of the LP turbine, a middle outer flowpath radius disposed therebetween along the longitudinal direction. The middle outer flowpath radius is greater than the last outer flowpath radius. | 2018-08-23 |
20180238187 | SEAL ARRANGEMENT FOR A GAS TURBINE - A seal arrangement comprising a first and second components made of a ceramic fiber composite material and comprising first and second bounding sections with first and second overlapping sections and first and second securing sections which are connected to and projects from the first and second bounding sections. The first and second overlapping sections are arranged at least partially overlapping such that the first and second bounding sections form an essentially continuous bounding surface. A separation between the first and second securing sections is at least partially sealed by a seal element which comprises at least one first sheet-metal element arranged along the first securing section and at least partially bridging the separation between the first and second securing sections. | 2018-08-23 |
20180238188 | TURBINE SHROUD RING FOR A GAS TURBINE ENGINE WITH RADIAL RETENTION FEATURES - A gas turbine engine assembly includes a turbine shroud having a carrier segment and adjacent blade track segments. The carrier segment is arranged around a central axis of the turbine shroud and the blade track segments are supported by the carrier segment. | 2018-08-23 |
20180238190 | NOZZLE DRIVE MECHANISM AND TURBOCHARGER - Provided is a nozzle drive mechanism, including: a bearing; a drive shaft inserted into a bearing hole; and a link plate having an opposing portion, which is opposed to at least the bearing in an axial direction of the drive shaft, and is subjected to hardening treatment, the link plate being fixed to the drive shaft by caulking, bolt-fastening, or press-fitting. | 2018-08-23 |
20180238191 | BEARING HOUSING AND AN EXHAUST GAS TURBOCHARGER WITH SUCH A HOUSING - A bearing housing for an exhaust gas turbocharger may include a bearing housing cover arranged on a bearing housing wall. The bearing housing cover may include a penetrating rotation-symmetrical sealing recess with a centre axis and may have a locating surface facing the bearing housing wall and radially extending from the centre axis. The bearing housing may include a sealing bush arranged in at least one region of the sealing recess. The sealing bush may have a stop surface arranged opposite the locating surface and may include a penetrating shaft recess disposed rotation-symmetrical relative to the centre axis. The bearing housing cover may further include an at least partly circulating groove disposed on the locating surface radially spaced from the centre axis. The groove may include a drainage region arranged below the centre axis and extending from the centre axis radially to an outside. | 2018-08-23 |
20180238192 | CONNECTION BETWEEN A CIRCULAR SHELL AND A RADIAL STRUCTURAL ARM OF A TURBOMACHINE, COMPRISING A SEAL AND ITS SUPPORT | 2018-08-23 |
20180238193 | TURBINE SHROUD WITH BIASED RETAINING RING - An assembly adapted for use in a gas turbine engine has a plurality of segments arranged to form an annular shape and seal elements arranged circumferentially between the segments. The assembly further includes retention means for restraining movement of the plurality of seal members in the radial direction away from a central axis and out of position relative to the plurality of segments. | 2018-08-23 |
20180238194 | AXIAL FLOW TURBINE - An axial flow turbine according to an embodiment includes: an outer casing; an inner casing provided inside the outer casing; a discharge pipe that is welded and joined to the outer casing and through which a working fluid discharged from the axial flow turbine flows; a sleeve that is provided inside the outer casing and the discharge pipe and guides the working fluid discharged from the axial flow turbine to the discharge pipe; a tubular member that is provided over an outer periphery of the sleeve inside the outer casing and the discharge pipe and covers an inner periphery side of a joint portion between the outer casing and the discharge pipe; an introduction port that introduces a cooling medium into a space demarcated by the outer casing, the discharge pipe, and the tubular member; and a discharge port that discharges the cooling medium introduced into the space. | 2018-08-23 |
20180238195 | ELASTOMERIC SHOCK ABSORBERS FOR GAS TURBINE TRANSPORTATION - This application provides elastomeric shock absorbers for turbine transportation. Example engine mounts may include a first plate, a second plate, and an elastomeric bearing positioned between the first plate and the second plate. The engine mount may be configured to absorb or dampen vibration along an X-axis, a Y-axis, and a Z-axis of a turbine during transportation. | 2018-08-23 |
20180238196 | LOW-COST HYBRID ENERGY STORAGE SYSTEM - A low-cost hybrid energy storage system receives energy from one or more external sources, and has an air compressor, low-pressure compressed air energy storage (CAES) system that receives compressed air from the compressor, and a low-temperature thermal energy storage (LTES) system that extracts heat generated by the compression of the air. The LTES system heats an expansion air stream released from the CAES system. The expansion air stream is augmented by air from a turbocharger, and further heated by the exhaust stream of a power turbine. At least a portion of the augmented air stream is further heated in a high-temperature thermal energy storage system that receives energy from the one or more external source. The augmented stream is directed to the turbocharger, and then through the power turbine to generate output energy. | 2018-08-23 |
20180238197 | WASTE HEAT RECOVERY SYSTEM - A waste heat recovery system has a Rankine cycle in which boilers, an expander, a condenser, and a circulation pump are installed on a circulation path in which working fluid is circulated, and the boilers are connected in series with and in parallel to the circulation path. The waste heat recovery system includes: a first and a second direction control valves installed at a top and at a bottom of the boilers to shift flow directions of the working fluid to the boilers; and a controlling unit to receive information of a vehicle and information of the waste heat recovery system to control the first and second direction control valves. | 2018-08-23 |
20180238198 | Switchable Rocker Arm with a Travel Stop - A rocker arm includes an outer arm defining a stop aperture with a stop surface; an inner arm which selectively pivots relative to the outer arm; a latching mechanism which switches the rocker arm between a coupled state in which the inner arm is prevented from pivoting relative to the outer arm in a first direction and a decoupled state in which the inner arm pivots relative to the outer arm; a lost motion spring which biases the inner arm to pivot relative to the outer arm in a second direction which is opposite from the first direction; and a stop pin fixed to the inner arm and extending into the stop aperture such that the stop pin is circumferentially surrounded by the stop surface and such that the stop pin within the stop aperture limits the extent to which the inner arm pivots relative to the outer arm. | 2018-08-23 |
20180238199 | Latching Arrangement for Switchable Rocker Arm - A rocker arm includes an outer arm; an inner arm which selectively pivots relative to the outer arm; and a latching arrangement which switches the rocker arm between a coupled state and a decoupled state. The latching arrangement includes a connecting bore which is terminated by a connecting bore floor; an oil supply bore which opens into the connecting bore through the connecting bore floor; a lock pin bore which opens into the connecting bore through the connecting bore floor; a lock pin within the lock pin bore where the lock pin prevents the inner arm from pivoting in the coupled state and where the lock pin permits the inner arm to pivot in the coupled state; and a retainer within the connecting bore which defines a chamber within the connecting bore which provides fluid communication between the oil supply bore and the lock pin bore. | 2018-08-23 |
20180238200 | ADJUSTABLE CAMSHAFT HAVING A PHASE ACTUATOR - An adjustable camshaft for a valve train of an internal combustion engine may include an inner shaft that is rotatable in an outer shaft, a phase shifter by which the outer shaft and/or the inner shaft are/is adjustable in a phase position formed around an axis of rotation, and a bearing portion for bearing the camshaft, via which the phase shifter can be supplied with a pressurizing medium. The inner shaft may comprise an end on which a screw flange is arranged, and a rotor of the phase shifter may be connected to the screw flange. A free end of the inner shaft comprises a duct that coincides with the axis of rotation for at least partially supplying the phase shifter with a pressurizing medium. The duct may extend at least into the bearing portion. | 2018-08-23 |
20180238201 | VARIABLE VALVE TIMING CONTROL DEVICE - A variable valve timing control device includes a drive-side rotational body, a driven-side rotational body, a connecting bolt being coaxially disposed with a rotary axis and connecting the driven-side rotational body to a camshaft, a valve unit including a spool being disposed at an inner space of the connecting bolt and supplying and discharging a fluid to and from an advanced-angle chamber and a retarded-angle chamber, the valve unit discharging the fluid from an opening of a head portion of the connection bolt when the spool controls the fluid, and a reservoir being coaxially disposed with the rotary axis that is positioned laterally, the reservoir accumulating the fluid discharged from the opening of the head portion from which the fluid is configured to be sucked. | 2018-08-23 |
20180238202 | Beam Coupling - A beam coupling includes a spring extending between top and bottom plates to transmit rotational motion while providing longitudinal compressibility and accommodating axial misalignment without loss of effective and efficient operation; a fluid flow control system may include a beam coupling operatively disposed between a motor and a valve. | 2018-08-23 |
20180238203 | LUBRICATION STRUCTURE FOR INTERNAL COMBUSTION ENGINE - A lubrication structure for an internal combustion engine includes an oil pump, a main gallery, an oil-supply passage, a sub gallery, and an oil-communication passage. The oil pump is installed in a crankcase configured by connecting an upper crankcase on a mating surface of a lower crankcase from above. The main gallery is provided in the lower crankcase for supplying oil from the oil pump to the engine. The oil-supply passage is provided in the lower crankcase and supplies oil from the main gallery to a mating-surface-oil passage of the mating surface. The sub gallery is provided in the upper crankcase for guiding oil to a piston jet that injects oil toward a piston of the engine. The oil-communication passage is provided across the lower and upper crankcases, branches from the oil-supply passage to communicate with the sub gallery, and guides oil in the oil-supply passage to the sub gallery. | 2018-08-23 |
20180238204 | THERMALLY COMPLIANT HEATSHIELD - A heat shield comprising a sidewall portion, a top portion, and a plurality of flexible tabs attached to the sidewall portion is described herein, in accordance with various embodiments. The top portion may comprise an aperture. The sidewall portion may extend at an angle between 80 degrees and 100 degrees from the top portion. The sidewall portion may bound a hexagonal void. The flexible tab may comprise an angle between 80 degrees and 100 degrees. The flexible tab may be fixed to the sidewall portion, wherein the flexible tab is configured to be attached to a fitting. | 2018-08-23 |
20180238205 | INTERNAL COMBUSTION ENGINE - An internal combustion engine includes: a cylinder head ( | 2018-08-23 |
20180238206 | ENGINE DIPSTICK - An engine with an engine casing and a dipstick. The dipstick extends into the engine casing and has a free end. The design of the free end may be selected such that the natural frequency of the dipstick does not resonate with the operating frequency of the engine. The dipstick may also be oriented such that the free end does not contact the engine. | 2018-08-23 |
20180238207 | CRANKCASE FILTER ASSEMBLY - A filter assembly that includes a separator for separating gas from a fluid. The assembly includes; a base with surrounding walls that define a fluid reservoir; a baffle that overlies at least a portion of the reservoir; a filter element that is beneath the baffle and in the reservoir; and, a cover that is removably fastened to the base and includes a fluid inlet that terminates in a conical base with an unrestricted opening and the baffle includes a fluid impact cone. | 2018-08-23 |
20180238208 | VEHICLE INCLUDING CABIN DISTURBANCE MITIGATION SYSTEM - An automotive vehicle includes an internal combustion engine that generates exhaust gas and an exhaust system that expels the exhaust gas from the vehicle via at least one of a first exhaust conduit and a second exhaust conduit. A disturbance sensor is installed within a cabin of the vehicle, and is configured to detect a disturbance within the cabin and to output a disturbance signal indicative of the disturbance. An exhaust valve has a plurality of positions and adjusts an amount of the exhaust gas delivered to the first and second exhaust conduits. The automotive vehicle further includes an electronic hardware controller in signal communication with the at least one disturbance sensor and the exhaust valve. The controller adjusts the position of the exhaust valve based on the disturbance signal to reduce the disturbance within the cabin. | 2018-08-23 |
20180238209 | VALVE UNIT INCLUDING AN INTERFACE - A modular valve unit for controlling the flow rate of an intake or exhaust gas of a combustion engine through the passage of a valve, the valve unit comprising a valve having a valve housing ( | 2018-08-23 |
20180238210 | HONEYCOMB-TYPE HEATING DEVICE AND METHOD OF USING SAME - A honeycomb-type heating device includes a pillar-shaped honeycomb substrate that has partition walls defining a plurality of cells and that has a circumferential wall surrounding the partition walls; a plurality of heaters adjacently arranged on a circumferential face in a circumferential direction of the circumferential face that is an outer surface of the circumferential wall; a coated wire electrically connecting the plurality of heaters; and a metal case housing the honeycomb substrate and the plurality of heaters. Each of the plurality of heaters has an electrode for energization and is a resistance heating type heater that generates heat due to energization, the metal case has hole parts for protruding the electrodes of respective heaters to the outside of the metal case, and the coated wire electrically connects, outside the metal case, the electrodes of respective heaters protruding to the outside of the metal case from the hole parts. | 2018-08-23 |
20180238211 | SYSTEMS FOR REDUCING STARTUP EMISSIONS IN POWER PLANT INCLUDING GAS TURBINE - Embodiments of emission reduction system including various embodiments of an emission filters for a power plant including a gas turbine are disclosed. The system includes: an emission filter; and a retraction system operably coupled to an exhaust passage of the gas turbine. The exhaust passage defines an exhaust path of exhaust from the gas turbine. The retraction system selectively moves the emission filter between a first location within the exhaust path and a second location out of the exhaust path. In a combined cycle power plant, the first location is upstream of a heat recovery steam generator (HRSG). The systems and filters described allow for temporary positioning of emission filter(s) just downstream of a gas turbine exhaust outlet, or upstream of an HRSG, where provided, for emission reduction at low loads or startup conditions, and removal of the emission filter(s) once operations move to higher loads. | 2018-08-23 |
20180238212 | SYSTEMS FOR REDUCING STARTUP EMISSIONS IN POWER PLANT INCLUDING GAS TURBINE - Embodiments of emission reduction system including various embodiments of an emission filters for a power plant including a gas turbine are disclosed. The system includes: an emission filter; and a retraction system operably coupled to an exhaust passage of the gas turbine. The exhaust passage defines an exhaust path of exhaust from the gas turbine. The retraction system selectively moves the emission filter between a first location within the exhaust path and a second location out of the exhaust path. In a combined cycle power plant, the first location is upstream of a heat recovery steam generator (HRSG). The systems and filters described allow for temporary positioning of emission filter(s) just downstream of a gas turbine exhaust outlet, or upstream of an HRSG, where provided, for emission reduction at low loads or startup conditions, and removal of the emission filter(s) once operations move to higher loads. | 2018-08-23 |
20180238213 | SYSTEMS FOR REDUCING STARTUP EMISSIONS IN POWER PLANT INCLUDING GAS TURBINE - Embodiments of emission reduction system including various embodiments of an emission filters for a power plant including a gas turbine are disclosed. The system includes: an emission filter; and a retraction system operably coupled to an exhaust passage of the gas turbine. The exhaust passage defines an exhaust path of exhaust from the gas turbine. The retraction system selectively moves the emission filter between a first location within the exhaust path and a second location out of the exhaust path. In a combined cycle power plant, the first location is upstream of a heat recovery steam generator (HRSG). The systems and filters described allow for temporary positioning of emission filter(s) just downstream of a gas turbine exhaust outlet, or upstream of an HRSG, where provided, for emission reduction at low loads or startup conditions, and removal of the emission filter(s) once operations move to higher loads. | 2018-08-23 |
20180238214 | SYSTEMS FOR REDUCING STARTUP EMISSIONS IN POWER PLANT INCLUDING GAS TURBINE - Embodiments of emission reduction system including various embodiments of an emission filters for a power plant including a gas turbine are disclosed. The system includes: an emission filter; and a retraction system operably coupled to an exhaust passage of the gas turbine. The exhaust passage defines an exhaust path of exhaust from the gas turbine. The retraction system selectively moves the emission filter between a first location within the exhaust path and a second location out of the exhaust path. In a combined cycle power plant, the first location is upstream of a heat recovery steam generator (HRSG). The systems and filters described allow for temporary positioning of emission filter(s) just downstream of a gas turbine exhaust outlet, or upstream of an HRSG, where provided, for emission reduction at low loads or startup conditions, and removal of the emission filter(s) once operations move to higher loads. | 2018-08-23 |
20180238215 | SYSTEMS FOR REDUCING STARTUP EMISSIONS IN POWER PLANT INCLUDING GAS TURBINE - Embodiments of emission reduction system including various embodiments of an emission filters for a power plant including a gas turbine are disclosed. The system includes: an emission filter; and a retraction system operably coupled to an exhaust passage of the gas turbine. The exhaust passage defines an exhaust path of exhaust from the gas turbine. The retraction system selectively moves the emission filter between a first location within the exhaust path and a second location out of the exhaust path. In a combined cycle power plant, the first location is upstream of a heat recovery steam generator (HRSG). The systems and filters described allow for temporary positioning of emission filter(s) just downstream of a gas turbine exhaust outlet, or upstream of an HRSG, where provided, for emission reduction at low loads or startup conditions, and removal of the emission filter(s) once operations move to higher loads. | 2018-08-23 |
20180238216 | APPARATUS AND METHOD FOR DESULFATION OF A CATALYST USED IN A LEAN BURN METHANE SOURCE FUELED COMBUSTION SYSTEM - An apparatus for reactivating a sulfur poisoned oxidation catalyst operating in the exhaust of a lean burn, methane source (as in natural gas) fueled combustion device as in an engine. The reactivation includes desulfation of the poisoned catalyst through the use of a CO supplementation apparatus in communication with the control unit that is adapted to supplement the CO content in the exhaust reaching the catalyst, while avoiding an overall rich exhaust atmosphere at the catalyst. An example includes the added supply of hydrocarbons to one or more, preferably less than all, of the lean burn engine's combustion chambers such as by an ECU controlled extra supply of NG (e.g., CNG) to some of the combustion chambers. Also featured is a method for desulfation of an oxidation catalyst of a lean burn CNG engine by supplying excess CO to the exhaust reaching the catalyst while retaining an overall lean state, and a method of assembling an apparatus for reactivating a sulfur deactivated lean burn NO engine catalyst by assembling a CO supplementation apparatus with a control unit. | 2018-08-23 |
20180238217 | EXHAUST AFTERTREATMENT SYSTEM WITH AMMONIA GAS GENERATOR - An exhaust aftertreatment system may include a reductant tank, a gaseous ammonia source, an injector, first conduit and a second conduit. The injector may receive the liquid reductant from the reductant tank and the gaseous ammonia from the gaseous ammonia source and inject the liquid reductant into a stream of exhaust gas in a first mode, inject the gaseous ammonia into the stream of exhaust gas in a second mode, and both the liquid reductant and the gaseous ammonia into the stream of exhaust gas in a third mode. The first conduit may communicate liquid reductant from the reductant tank to the injector. The second conduit may communicate gaseous ammonia from the gaseous ammonia source to the injector. | 2018-08-23 |
20180238218 | FUEL ADDITION SYSTEM - The fuel addition system comprises: a fuel addition valve, a fuel tank, a first pressure storage chamber storing fuel to be supplied to a fuel injector, a supply pump increasing a pressure of fuel inside the fuel tank and supplying the fuel to the first pressure storage chamber, a pressure reduction valve discharging fuel stored in the first pressure storage chamber, a pressure reduction fuel passage supplying fuel discharged from the first pressure storage chamber to the fuel addition valve, and a control device controlling the fuel addition valve and the pressure reduction valve. The control device detects or estimates a temperature of fuel supplied to the fuel addition valve and, when injecting fuel from the fuel addition valve, controls an amount of fuel discharged from the first pressure storage chamber through the pressure reduction valve so that the temperature of the fuel becomes a reference temperature or more. | 2018-08-23 |
20180238219 | METHODS AND SYSTEMS FOR AN EXHAUST GAS AFTERTREATMENT DEVICE - Methods and systems are provided for an exhaust gas aftertreatment device. In one example, a method may include adjusting one or more engine operating parameters to produce ammonia in an ammonia generating device in response to an ammonia demand. | 2018-08-23 |
20180238220 | WORK MACHINE - A work machine provided with an exhaust gas purifying device includes a selective catalytic reducing device that performs treatment on exhaust gas of an engine, and a reducing agent injection device that injects a reducing agent into exhaust gas to be supplied to the selective catalytic reducing device. The work machine is provided with a housing that delimits an engine room accommodating the engine and the exhaust gas purifying device. The housing includes a top board that covers the engine room above the engine, and an exhaust duct that is provided in the top board and discharges the air in the engine room to the outside of the engine room. A part of a reducing agent supply pipe for guiding the reducing agent to the reducing agent injection device is disposed in the exhaust duct in a position above the reducing agent injection device. | 2018-08-23 |
20180238221 | FLEXIBLE AUTOMOTIVE EXHAUST TUBE SYSTEM - A flexible tube system having an end section formed from an inner rigid tube and an outer shell, and the end section is joined to a central flexible portion having an inner decoupler tube, and an outer shell bridge is joined to the outer shell and the flexible central portion to define an insulation space. | 2018-08-23 |
20180238222 | LINE ELEMENT FOR COMPENSATING FOR EXPANSIONS AND/OR RELATIVE MOVEMENTS - A line element for compensating for expansions and/or relative movements within a line through which fluid can flow, comprising a ring-corrugation or helical-corrugation bellows | 2018-08-23 |
20180238223 | VEHICULAR HEAT MANAGEMENT DEVICE - A vehicular heat management device includes a first heat source, a second heat source, a first heat generator, a second heat generator, a heat generator pathway, a first heat source pathway, a second heat source pathway, and a switching portion. The first heat source and the second heat source heat a heat medium. The first heat generator generates heat according to operation. The second heat generator generates heat according to operation. The first heat generator and the second heat generator are provided in the heat generator pathway. The first heat generator is provided in the first heat generator pathway. The second heat generator is provided in the second heat generator pathway. The switching portion switches between a condition where the heat generator pathway is in flowing communication with the first heat generator pathway and a condition where the heat generator pathway is in flowing communication with the second heat generator pathway. | 2018-08-23 |
20180238224 | PARALLEL-FLOW IMMERSION HEAT EXCHANGER - A heat exchanger includes a heat exchanger body arranged along an axis and having an external surface in contact with a surrounding first fluid. The body defines a first fluid passage centered on and extending along the axis. The body also defines a second fluid passage extending parallel with respect to the axis and spaced away from the axis by a second passage distance, and a third fluid passage extending parallel with respect to the axis and spaced away from the axis by a third passage distance. The first, second, and third passages are parallel to one another, while the third passage distance is greater than the second passage distance. Each of the first and third passages is configured to accept a flow of a second fluid and the second fluid passage is configured to hold a volume of air to thermally insulate the first passage from the third passage. | 2018-08-23 |
20180238225 | SYSTEMS AND METHOD FOR CONTROLLING AUTO-IGNITION - Various methods and systems are provided for maintaining combustion stability in a multi-fuel engine. In one example, a system comprises a first fuel system to deliver liquid fuel to at least one cylinder of an engine, a second fuel system to deliver gaseous fuel to the at least one cylinder, and a controller. The controller is configured to supply the gaseous fuel to the at least one cylinder, inject the liquid fuel to the at least one cylinder thereby to ignite the liquid fuel and the gaseous fuel in the at least one cylinder via compression-ignition, and adjust an amount of the gaseous fuel relative to an amount of the liquid fuel based on a measured parameter associated with auto-ignition of end gases subsequent to the compression-ignition of the liquid fuel. | 2018-08-23 |
20180238226 | VARIABLE GEOMETRY WASTEGATE TURBINE MEETING THE REQUIREMENTS OF EGR CIRCULATION - A variable geometry turbine having a wastegate, which meets the requirements of EGR circulation, includes a turbine housing and a power turbine. The turbine housing is provided with an inner intake gas flow channel and an outer intake gas flow channel which is configured to guide exhaust gas of an engine to the power turbine for driving the power turbine to rotate. The turbine housing is further provided with a wastegate pipeline configured to discharge the exhaust gas without passing through the power turbine, and a wastegate valve configured to control communication and cutting off of the wastegate pipeline, and in the case that an intake gas amount of the exhaust gas entering into the turbine exceeds a preset value, the wastegate valve is opened to discharge a part of the exhaust gas via the wastegate pipeline. | 2018-08-23 |
20180238227 | TURBOCHARGER ASSEMBLY - A turbocharger can include a center housing; a compressor assembly operatively coupled to the center housing; and a turbine assembly operatively coupled to the center housing, where the center housing includes a bearing boss that includes a bore wall with opposing axial ends that define an axial through bore having opposing axial openings, an oil inlet, an oil outlet, an arcuate oil passage in fluid communication with the oil inlet, an oil passage in fluid communication with the arcuate oil passage and an opening in the bore wall, and an oil drainage passage in fluid communication with the opposing axial openings of the through bore and in fluid communication with the oil outlet. | 2018-08-23 |
20180238228 | RECIPROCATING PISTON ENGINE, IN PARTICULAR INTERNAL COMBUSTION ENGINE - The invention relates to a reciprocating piston engine, in particular an internal combustion engine, comprising at least one length adjustable connecting rod ( | 2018-08-23 |
20180238229 | Compositions for Engine Carbon Removal and Methods and Apparatus for Removing Carbon - This invention relates to cleaning the induction systems, the combustion chambers and exhaust systems of internal combustion engines. And, more particularly, to chemicals and mixtures of chemicals for removing the different types of carbon deposits encountered in internal combustion engines used in “road vehicles”. Carbon deposits were taken from the induction systems of these road vehicles for the purpose of bench testing such carbon and product development. More specifically, chemicals (i.e., solvents) and chemical mixes (i.e., solutions) have been accurately tested on such harvested carbon deposits for their ability to remove the various types of carbon deposits that accumulate within road vehicle internal combustion engines. Additionally this invention also relates to apparatus for delivering chemicals and chemical mixes. Which includes those developed by applicant, as well as those prior art products marketed for carbon removal, to the induction system of vehicles to maximize the effectiveness of the chemical delivery. | 2018-08-23 |
20180238230 | Compositions for Engine Carbon Removal and Methods and Apparatus for Removing Carbon - This invention relates to cleaning the induction systems, the combustion chambers and exhaust systems of internal combustion engines. And, more particularly, to chemicals and mixtures of chemicals for removing the different types of carbon deposits encountered in internal combustion engines used in “road vehicles”. Carbon deposits were taken from the induction systems of these road vehicles for the purpose of bench testing such carbon and product development. More specifically, chemicals (i.e., solvents) and chemical mixes (i.e., solutions) have been accurately tested on such harvested carbon deposits for their ability to remove the various types of carbon deposits that accumulate within road vehicle internal combustion engines. Additionally this invention also relates to apparatus for delivering chemicals and chemical mixes. Which includes those developed by applicant, as well as those prior art products marketed for carbon removal, to the induction system of vehicles to maximize the effectiveness of the chemical delivery. | 2018-08-23 |
20180238231 | Compositions for Engine Carbon Removal and Methods and Apparatus for Removing Carbon - III - The testing of various chemicals has yielded new chemicals and chemical mixtures for the use of removing carbon deposits from the internal combustion engine. Some of these chemicals and chemical mixtures have proven to work better across many different carbon types than other chemicals that were tested. These chemical terpenes are typically produced from plants. One standard terpene mixture is known as turpentine. The chemical turpentine and chemicals found in turpentine have been determined, through our research and testing, to be extremely effective at removing the carbon that is produced within the internal combustion engine. | 2018-08-23 |
20180238232 | Methods for Assembling a Unitary Flow Path Structure - Methods for assembling flow path structures having one or more unitary components are provided. For example, one method for assembling a flow path assembly of a gas turbine engine comprises stacking axially adjacent components within a generally annular outer wall of the flow path assembly. The flow path assembly defines a flow path through a combustion section and at least a portion of a turbine section of the gas turbine engine. The outer wall defines an outer boundary of the flow path, and the axially adjacent components defining at least a portion of an inner boundary of the flow path. The outer wall is a unitary outer wall that includes a combustor portion extending through the combustion section and a turbine portion extending through at least a first turbine stage of the turbine section. The combustor and turbine portions are integrally formed as a single unitary structure. | 2018-08-23 |
20180238233 | DE-ICING BY INTEGRAL ELECTRIC HEAT GENERATION - Systems and methods for de-icing a fan of a gas turbine engine are disclosed. The systems and methods may include an electrical coil an electrical coil operatively associated with a non-rotating forward assembly of the gas turbine engine; a magnet operatively associated with a rotating surface of the fan, the magnet and the electrical coil producing electricity when the fan is in motion; and a heating element operatively associated with a surface on the fan, the heating element being powered by the electricity produced by the magnet and the electrical coil. | 2018-08-23 |
20180238234 | FUEL INJECTION DEVICE FOR A GAS TURBINE - A fuel injection device includes a plurality of main burners and pilot burners. Each main burner is connected to a main distribution line, and each pilot burner is connected to a pilot distribution line. A setting device provides fuel to the main fuel line and/or to the pilot fuel line. A control unit adjusts the setting device between a first mode for exclusive pilot burner operation and a second mode for joint pilot burner operation and main burner operation such that, in the first mode, a tank connection is connected to a first line section of the main fuel line, and a second line section of the main fuel line is connected to the pilot supply line to conduct fuel through the main fuel line before it is supplied to the pilot fuel line to cool the main burner. | 2018-08-23 |
20180238235 | Rotorcraft having Increased Altitude Density Ceiling - A rotorcraft has a low density altitude flight mode and a high density altitude flight mode. The rotorcraft includes a turboshaft engine forming a gas path in sequence through an air inlet section, a compressor section, a combustor section, a turbine section and an exhaust section. A drive system is coupled to the engine and is operable responsive to rotation of at least a portion of the turbine section. A rotor is coupled to the drive system and is operable to receive torque and rotational energy therefrom. A fuel injection system supplies fuel to the combustor section. An oxidizer injection system and a coolant injection system are used to selectively inject an oxidizer and a coolant into the gas path when it is desired to operate the rotorcraft in the high density altitude flight mode, thereby increasing the altitude density ceiling of the rotorcraft for maneuvers including takeoffs and landings. | 2018-08-23 |
20180238236 | CHARGE GAS COMPRESSION TRAIN FOR ETHYLENE - A charge gas compression train for ethylene, including on the same shaft line a steam turbine and a first compressor including a first group of compression stages, a second group of compression stages and a third group of compression stages, the first group of compression stages including an outlet configured to be connected to a first intercooler inlet, the second group of compression stages including a second compressor inlet configured to be connected to a first intercooler outlet, the second group of compression stages including a second compressor outlet configured to be connected to a second intercooler inlet, the third group of compression stages including a third compressor inlet configured to be connected to a second intercooler outlet; the first, the second and the third group of compression stages being integrated in a first common casing and operating at the same rotation speed of the steam turbine; the first compressor including a plurality of unshrouded and shrouded impellers, wherein at least an unshrouded impeller is positioned upstream to at least a shrouded impeller. | 2018-08-23 |
20180238237 | MODULAR GAS TURBINE INLET COOLING SYSTEMS - An inlet cooling system unit that is fluidly coupled to a gas turbine can include a filter module configured to filter inlet air, a chiller module configured to cool inlet air, and a framework. The framework is sized and shaped to define a filer module receiving region which supportably receives the filter module, and a chiller module receiving region which supportably receives the chiller module, the chiller module receiving region located below the filter module receiving region such that the chiller module is received below the filter module. Related gas turbine inlet cooling systems are also provided. | 2018-08-23 |
20180238238 | ANNULAR SURFACE COOLER AND METHOD OF FORMING MULTIPLE FINS IN A HEAT EXCHANGER - A method of forming fins in a heat exchanger includes using a stacked slit saw with multiple saw blades to simultaneously cut multiple fins into a metal body of the heat exchanger, with each fin having a body extending from an upper surface of the metal body and terminating in a tip. | 2018-08-23 |
20180238239 | Endcover Assembly for a Combustor - An endcover assembly for a combustor includes an endcover and a fuel nozzle rigidly connected to the endcover. The fuel nozzle includes a plurality of tubes that extends axially through a first plate, a fuel plenum and a second plate where each tube includes an inlet defined upstream of the first plate and an outlet disposed downstream from the second plate. The endcover assembly further includes an inlet flow conditioner having a forward end connected to the endcover and an aft end axially spaced from the forward end. The inlet flow conditioner circumferentially surrounds at least a portion of the fuel nozzle. A support plate is joined to the aft end of the inlet flow conditioner. Each tube of the fuel nozzle extends through a corresponding tube hole defined by the support plate. The fuel nozzle is connected to the support plate. | 2018-08-23 |
20180238240 | COMPOSITE PISTON RING SEAL FOR AXIALLY AND CIRCUMFERENTIALLY TRANSLATING DUCTS - A seal system is provided. The seal system may comprise a first duct having an annular geometry, a second duct overlapping the first duct in a radial direction, and a seal disposed between the first duct and the second duct. The seal may comprise a groove defined by the first duct and a piston configured to slideably engage the groove. | 2018-08-23 |
20180238241 | GEAR SYSTEM ARCHITECTURE FOR GAS TURBINE ENGINE - A gas turbine engine includes a gear system that transfers power input from a fan drive turbine to a fan through a gear system with a gear reduction ratio greater than 2.3. A flexible mount supports the gear system and accommodates movement of the gear system relative to an engine static structure. A lubrication system provides lubricant flow to a plurality of rotating components including bearing systems and the gear system and has a maximum capacity for removing thermal energy less than or equal to no more than 2% of power input into the gear system. | 2018-08-23 |
20180238242 | GEARED GAS TURBINE ENGINE WITH OIL DEAERATOR - A gas turbine engine comprises a fan drive turbine for driving a gear reduction. The gear reduction drives a fan rotor. A lubrication system supplies oil to the gear reduction. The lubrication system includes a lubricant pump supplying a mixed air and oil to a deaerator inlet. The deaerator includes a separator that for separating oil, and delivering separated air to an air outlet, and for delivering separated oil back into an oil tank. The separator includes a member having lubricant flow paths on both of two opposed sides. A method of designing a gas turbine engine is also disclosed. | 2018-08-23 |
20180238243 | METHOD OF DEFINING GAS TURBINE ENGINE CONTROL RATINGS - A disclosed control system and method of controlling a gas turbine engine utilizes a thrust rating schedule generated from airframe selected requirements. The system utilizes a generic logic structure for ratings combined with simple selection logic to customize rating schedules for multiple airframe customers. The use of a common generic logic structure to generate rating schedules for different airframe manufacturers reduces software design effort, memory consumption, and processor throughput requirements. | 2018-08-23 |
20180238244 | CONTROL UNIT FOR INTERNAL COMBUSTION ENGINE - A control unit for an internal combustion engine is configured for suppressing knocking phenomenon with reduction of overlap, while maintaining an opening timing of an exhaust valve at the time of low-rotation, high-load state. A valve opening/closing timing control apparatus includes a phase adjustment mechanism configured to vary a relative rotational phase between a driving side rotary body rotatable in synchronism with a crankshaft of the internal combustion engine and a driven side rotary body rotatable together with an exhaust cam shaft. After an opening timing of the exhaust valve, an advancing operation is effected for displacing the relative rotational phase in the advancing direction relative to the opening timing. | 2018-08-23 |
20180238245 | Port Injection System For Reduction Of Particulates From Turbocharged Direct Injection Gasoline Engines - The present invention describes a fuel-management system for minimizing particulate emissions in turbocharged direct injection gasoline engines. The system optimizes the use of port fuel injection (PFI) in combination with direct injection (DI), particularly in cold start and other transient conditions. In the present invention, the use of these control systems together with other control systems for increasing the effectiveness of port fuel injector use and for reducing particulate emissions from turbocharged direct injection engines is described. Particular attention is given to reducing particulate emissions that occur during cold start and transient conditions since a substantial fraction of the particulate emissions during a drive cycle occur at these times. Further optimization of the fuel management system for these conditions is important for reducing drive cycle emissions. | 2018-08-23 |