| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 184600110 | Gas turbine | 41 |
| 20080236951 | OIL SCAVENGE SYSTEM HAVING CHURNING DAMPER FOR GAS TURBINE ENGINES - An oil scavenge system of a gas turbine engine in accordance with one embodiment of the present invention, comprises a housing defined about an axis of rotation, the housing confining an air/oil mixture in motion within the housing and defining an oil scavenge area below the axis of rotation. The housing further includes an outlet at a low location of the housing. A churning damper is supported within the housing and is located in the oil scavenge area. The churning damper includes at least one plate, allowing the air/oil mixture in motion to pass over or through the plate only in a peripheral area of the at least one plate to cause flow energy dissipation. | 10-02-2008 |
| 20080264726 | Isolation Valve For The Oil Circuit Of An Airplane Engine - The present invention relates to a turbomachine comprising an air compressor ( | 10-30-2008 |
| 20090050410 | METHODS AND SYSTEMS FOR SEALING ROTATING MACHINES - Methods and systems for reducing a flow of ambient air into a bearing lubricating oil system are provided. The system includes a lubricating oil bearing cover that is stationary with respect to the bearing wherein the bearing is configured to support a portion of a rotatable machine shaft. The cover includes a first end cap extending radially inwardly towards the shaft such that a cavity surrounding the bearing is formed by the cover and the first end cap and a set of seal rings positioned substantially concentric with the shaft and forming a seal against lubricating oil flow. The seal rings include a plurality of wire bristles extending radially inwardly from the end cap wherein the wire bristles are configured to extend to a surface of the shaft when assembled and the bristles are configured to present a tortuous flow path to gas infiltrating the cavity. | 02-26-2009 |
| 20090057060 | Recirculating lubrication system with sealed lubrication oil storage - A recirculating lubrication system for a gas turbine engine comprises: a storage reservoir for storing a quantity of lubrication oil for the engine; an operating reservoir for supplying lubrication oil for the engine; a transfer valve with an inlet coupled to an outlet of the storage reservoir and an outlet coupled to an inlet of the operating reservoir to transfer the quantity of lubrication oil from the storage reservoir to the operating reservoir before starting the engine; and a pump for circulating the transferred lubrication oil through at least one engine bearing and back to the operating reservoir. | 03-05-2009 |
| 20090078508 | ELECTRIC MOTOR DRIVEN LUBRICATION SUPPLY SYSTEM SHUTDOWN SYSTEM AND METHOD - A system and method for controlling lubricant displacement from a lubrication system and a rotating machine includes supplying a gaseous fluid to the lubrication supply system to displace the lubricant. The gaseous fluid is preferentially directed through a first section of the lubrication supply system and to the rotating machine, and is at least inhibited from flowing through a second section of the lubrication supply system. As a result, the gaseous fluid displaces the lubricant in the rotating machine and in the first section of the lubrication supply system, while the second section of the lubrication supply system remains at least substantially full of lubricant. | 03-26-2009 |
| 20090152051 | On-demand lubrication system and method for improved flow management and containment - A method of oil flow management for a gas turbine engine includes moving oil from a tank to a compartment using a pressure pump, moving oil from the compartment to the tank using a scavenge pump, and at least temporarily increasing a rate at which oil is moved with the scavenge pump by a greater amount than a rate at which oil is moved with the pressure pump to create at least a partial vacuum to negatively pressurize the compartment to reduce oil leakage. | 06-18-2009 |
| 20090272603 | CENTRIFUGAL APPLICATOR SYSTEM - Methods and apparatus for applying a uniform application of an appropriate quantity of lubricant to the internal threads of a pipe. In general, the apparatus includes a high pressure supply of lubricant and a high speed, rotating centrifugal applicator for evenly applying the lubricant to internal threads. The system also includes a dosing system to regulate the distribution of lubricant by dispensing a consistent volume of lubricant at each application. Potential advantages of the embodiments include the repeatability and consistency of amount of lubricant on pipe threads (e.g. thickness). | 11-05-2009 |
| 20090294216 | SYSTEMS FOR SUPPLYING OIL FROM AN OIL SOURCE TO A BEARING ASSEMBLY - Systems are provided for supplying oil from an oil source to a bearing assembly, the bearing assembly including a cage having a forward rail and an aft rail, and at least one bearing disposed therebetween. | 12-03-2009 |
| 20100012434 | Gas turbine oil supply system and method for the operation of a bearing oil supply system for a gas turbine - A gas turbine oil supply system and a method for the operation of a bearing oil supply system for a gas turbine includes an oil tank | 01-21-2010 |
| 20100038173 | LUBRICANT SCOOP - A lubricant scoop is disclosed herein. The lubricant scoop comprises an annular body encircling a central axis. The annular body is operable to rotate about the central axis in a first direction. The lubricant scoop also comprises a plurality of lubricant passageways defined in the annular body. Each of the plurality of passageways extends radially inward toward the central axis from respective entry ports to respective exit ports. The lubricant scoop also comprises an entry plenum defined in the annular body. The entry plenum is upstream of and fluidly communicates with each of the plurality of passageways. The entry plenum has an upstream opening operable to receive lubricant from a lubricant spray nozzle. | 02-18-2010 |
| 20100065375 | REDUCED GULP FLUID RESERVOIR - An assembly includes a reservoir for holding a fluid, and a scavenge passage connected to the reservoir at a reservoir inlet. The scavenge passage returns the fluid from a delivery location to the reservoir. A bleed passage is connected in fluid communication between the reservoir and the scavenge passage. | 03-18-2010 |
| 20100213010 | Automatic Shut-Off Valve For The Oil Circuit In An Airplane Engine - The present invention concerns a lubrication system in a closed circuit provided with a valve comprising a first position and a second position, as well as an IN inlet, a first BP outlet and a second M outlet, said IN inlet being connected to the outlet of the feed pump, the first BP outlet being connected to the bypass circuit and the second M outlet being connected to the feed circuit. In the first position of the valve, the flow entering via the IN inlet is diverted to the first BP outlet and in the second position, the incoming flow is diverted to the second M outlet, said valve switching from the first position to the second position and vice versa, when the incoming flow rate exceeds a predetermined threshold upwards and downwards respectively. | 08-26-2010 |
| 20110031067 | Turbocharger Lubrication Feed Adapter - A fitting or adapter for attaching connecting an oil feed tube to a bearing housing of a turbocharger includes a body having a cylindrical sidewall with a central through-channel and an annular groove on an outside thereof for holding a seal ring, such as an O-ring. The sidewall has a plurality of radial holes, the holes spaced apart around a circumference of the cylindrical body and each connecting the central channel and the groove. The radial holes each can have a diameter of between ¼ and ⅓ of a width of the groove taken along an axial direction of the cylindrical sidewall. | 02-10-2011 |
| 20110048856 | LUBRICATION SYSTEM WITH POROUS ELEMENT - A lubrication system for a gas turbine engine including at least one porous element located in a cavity containing at least one rotating component receiving a flow of the lubricant, the porous element being located across a path taken by a portion of the lubricant expelled from the at least one respective rotating component such that the portion of the lubricant circulates therethrough, the at least one porous element being made of a material resistant to a temperature of the lubricant, the at least one porous element reducing a velocity of the portion of the lubricant circulating therethrough. | 03-03-2011 |
| 20110108360 | OIL CAPTURE AND BYPASS SYSTEM - An assembly for capturing lubricating liquid from a fan drive gear system of a gas turbine engine includes a gutter and an auxiliary reservoir. The gutter is positioned radially outward from a centerline axis of the gear system for capturing lubricating liquid slung from the gear system. The auxiliary reservoir is fluidically connected to the gutter for receiving and storing the lubricating liquid from the gutter. A portion of the auxiliary reservoir and a portion of the gutter have a same radial distance from the centerline axis of the gear system. | 05-12-2011 |
| 20110155508 | ON-DEMAND LUBRICATION SYSTEM FOR IMPROVED FLOW MANAGEMENT AND CONTAINMENT - An oil circulation system for a gas turbine engine includes a variable displacement scavenge pump for pumping oil, a first actuator for controlling displacement of the scavenge pump, a variable displacement pressure pump for pumping oil, a second actuator for controlling displacement of the pressure pump, and a drive shaft. Both the scavenge pump and the pressure pump are driven by the drive shaft. | 06-30-2011 |
| 20110284328 | ASSEMBLY INCLUDING AN AGB AND AN OIL TANK - An assembly that includes an accessory gearbox (AGB) and a tank for a liquid lubricant for a turbojet engine. The AGB includes a gear connected to parallel shafts for mechanically driving accessories. The assembly includes a housing with two compartments and a partition perpendicular to the shafts for separating the compartments, a compartment defining the accessory gearbox and a compartment defining the liquid tank. The assembly can be compact and easily manufactured. | 11-24-2011 |
| 20110315484 | LUBRICATION SYSTEM FOR AIRCRAFT ENGINE - A lubrication system for an aircraft engine includes a lubrication fluid tank and a fluid passage communicating with the tank to define an entry of the passage inside the tank. The entry is positioned in a location submerged in the lubrication fluid for delivery of the lubrication fluid under a pressure differential, from the tank to the lubrication system regardless of the tank or aircraft attitude. | 12-29-2011 |
| 20120080272 | REDUCED GULP FLUID RESERVOIR - An assembly includes a reservoir for holding a fluid, and a scavenge passage connected to the reservoir at a reservoir inlet. The scavenge passage returns the fluid from a delivery location to the reservoir. A bleed passage is connected in fluid communication between the reservoir and the scavenge passage. | 04-05-2012 |
| 20120181112 | CONTINUOUS SUPPLY FLUID RESERVOIR - An assembly for holding a fluid includes an auxiliary reservoir inside a main reservoir. The auxiliary reservoir includes an auxiliary reservoir shell with a fill passage at or near its bottom. The auxiliary reservoir shell also has a vent passage at or near its top. The fill passage and the vent passage fluidically connect the auxiliary reservoir to the main reservoir. A fluid inlet is located inside the main reservoir and outside of the auxiliary reservoir. A fluid outlet located inside the auxiliary reservoir between the fill passage and the vent passage. | 07-19-2012 |
| 20120181113 | OIL SCAVENGE SYSTEM HAVING CHURNING DAMPER FOR GAS TURBINE ENGINES - An oil scavenge system of a gas turbine engine in accordance with one embodiment of the present invention, comprises a housing defined about an axis of rotation, the housing confining an air/oil mixture in motion within the housing and defining an oil scavenge area below the axis of rotation. The housing further includes an outlet at a low location of the housing. A churning damper is supported within the housing and is located in the oil scavenge area. The churning damper includes at least one plate, allowing the air/oil mixture in motion to pass over or through the plate only in a peripheral area of the at least one plate to cause flow energy dissipation. | 07-19-2012 |
| 20130008745 | LUBRICATION SYSTEMS WITH NOZZLE BLOCKAGE DETECTION SYSTEMS - A lubrication system is provided for delivering a lubricant to a plurality of nozzles. The lubrication system includes a reservoir for the lubricant; a pump fluidly coupled to the reservoir and configured to remove a flow of the lubricant from the reservoir; a lubrication sensor positioned between the pump and the plurality of nozzles and configured to detect a blockage in the plurality of nozzles and to generate a blockage signal when the blockage is detected; and an indicator coupled to the lubrication sensor and configured to generate a warning based on the blockage signal from the lubrication sensor | 01-10-2013 |
| 20130015018 | SEALING DEVICE FOR JET ENGINE OIL CHAMBERAANM Gauthier; Gerard PhilippeAACI Champagne Sur SeineAACO FRAAGP Gauthier; Gerard Philippe Champagne Sur Seine FRAANM Morreale; Serge ReneAACI GuignesAACO FRAAGP Morreale; Serge Rene Guignes FR - A sealing device for a chamber including at least one rotary member and at least one static member of a jet engine and can contain a lubricating oil droplet suspension. The sealing device includes at least one brush seal that includes juxtaposed strands and is set to ensure sealing between at least one rotary member and at least one stationary member, a mechanism to recover part of the oil suspended within the inner space of the chamber, and a mechanism to deliver the recovered oil. The delivery mechanism is set up to generate a flow of oil along the strands of the brush seal, the oil flow being oriented in the direction of the rotary member. The brush seal thus provides better resistance to coking. | 01-17-2013 |
| 20130087412 | DYNAMICALLY-LUBRICATED BEARING AND METHOD OF DYNAMICALLY LUBRICATING A BEARING - Dynamically-lubricated bearings and methods of dynamically lubricating bearings, including bearings used in gas turbine engines. Such a bearing includes an inner race having an inner race groove between a pair of inner race cage lands, an outer race having an outer race groove between a pair of outer race cage lands and opposes the inner race groove, rolling elements disposed between the inner and outer races and in rolling contact with the inner and outer race grooves, and a cage disposed between the inner and outer races to maintain separation between the rolling elements. A lubricant is introduced into a cavity between the inner and outer races, and rotation of the inner race relative to the outer race causes the lubricant to exit the cavity through recessed surface features in at least one of the inner and outer race cage lands. | 04-11-2013 |
| 20130087413 | DYNAMICALLY-LUBRICATED BEARING AND METHOD OF DYNAMICALLY LUBRICATING A BEARING - Dynamically-lubricated bearings and methods of dynamically lubricating bearings, including bearings used in gas turbine engines. Such a bearing includes an inner race having an inner race groove, an outer race having an outer race groove that opposes the inner race groove, rolling elements disposed between the inner and outer races and in rolling contact with the inner and outer race grooves, and a cage disposed between the inner and outer races to maintain separation between the rolling elements. A lubricant is introduced into a cavity between the inner and outer races, and rotation of the inner race relative to the outer race causes air to enter pockets of the cage that contain the rolling elements, which in turn causes the lubricant to exit the cavity of the bearing. | 04-11-2013 |
| 20130319798 | AUXILIARY OIL SYSTEM FOR NEGATIVE GRAVITY EVENT - A lubrication system includes a bearing compartment. A main reservoir is fluidly connected to the bearing compartment by a main supply passage. A main pump is arranged in the main supply passage configured to provide fluid from the main reservoir to the bearing compartment during a positive gravity condition. A secondary supply passage fluidly connects the main reservoir to at least one segment of the main supply passage, thereby providing fluid from the main reservoir to the bearing compartment during a negative gravity condition. A method of supplying a bearing compartment with fluid includes pumping a fluid from a main reservoir to a bearing compartment through a main supply passage during a positive gravity condition, and providing fluid from the main reservoir to the bearing compartment through a secondary supply passage, fluidly connected to at least one segment of the main supply passage, in response to a negative gravity condition. | 12-05-2013 |
| 20140069743 | LUBRICATION SYSTEM HAVING SEGMENTED ANTI-BACKFLOW FEATURE - A tank includes a tank discharge passageway at least partially within a tank body. A segmented anti-back flow structure is mounted adjacent to the tank body and the tank discharge passageway. | 03-13-2014 |
| 20140069744 | SYSTEM AND METHOD FOR SUPPLYING LUBE OIL TO A GAS TURBINE - A system for supplying lube oil to a gas turbine includes an auxiliary lube oil skid and an auxiliary lube oil pump. A first fluid connection to supply piping of a main lube oil system is downstream from the auxiliary lube oil pump. A second fluid connection to return piping of the main lube oil system is upstream from the auxiliary lube oil pump. A method for supplying lube oil to a gas turbine includes connecting an auxiliary lube oil pump to supply piping of a main lube oil system, connecting the auxiliary lube oil pump to return piping of the main lube oil system, and operating the auxiliary lube oil pump to supply lube oil to the supply piping. | 03-13-2014 |
| 20140090930 | MULTIPLE RESERVOIR LUBRICATION SYSTEM - A lubrication system for use with a gas turbine engine includes a first reservoir for containing a lubricant. The first reservoir includes a first discharge passage through which the lubricant is flowable in a first direction. A second reservoir contains the lubricant. The second reservoir includes a second discharge passage through which the lubricant is flowable in a second direction. The first direction is generally opposite to the second direction. A first pump pumps the lubricant from the first reservoir. A second pump pumps the lubricant from the second reservoir. A manifold distributes the lubricant to a component. The lubricant from the first pump and the second pump flows into the manifold and exits the manifold through a manifold discharge. | 04-03-2014 |
| 20140174855 | PRESSURIZED RESERVE LUBRICATION SYSTEM FOR A GAS TURBINE ENGINE - A lubrication system includes a control subsystem operable to selectively communicate lubricant from a reserve lubrication subsystem under a pressure to supplement lubricant from a main lubrication subsystem in response to identification of a prolonged reduced-G condition. A gas turbine engine includes a main lubrication subsystem in communication with a geared architecture; a reserve lubrication subsystem in communication with the geared architecture; and a control subsystem operable to selectively communicate lubricant from the reserve lubrication subsystem under a pressure in response to identification of a prolonged reduced-G condition. A method of reducing lubrication starvation from a lubrication system with a main lubrication subsystem and a reserve lubrication subsystem, the main lubrication system in communication with a geared architecture of a gas turbine engine, includes communicating lubricant under a pressure to the geared architecture in response to identifying of a prolonged reduced-G condition. | 06-26-2014 |
| 20140182972 | CASE WITH INTEGRAL LUBRICANT SCAVENGE PASSAGE - A case comprises a radially inner case hub, a radially outer case section with an outer wall, a plurality of circumferentially distributed struts extending radially between the inner hub and the outer case section, and a lubricant scavenge passage disposed circumferentially apart from a bottom dead center (BDC) position of the case. The lubricant scavenge passage includes an inner scavenge section extending radially through a first one of the plurality of struts. | 07-03-2014 |
| 20160010499 | LUBRICATION SYSTEM FOR A GAS TURBINE ENGINE | 01-14-2016 |
| 20160032763 | HEATSHIELD DISCOURAGER SEAL FOR A GAS TURBINE ENGINE - A gas turbine engine includes a service line interface that extends from an outer surface of a bearing support such that a heat shield is spaced from the outer surface. A method of mounting a heat shield to a gas turbine engine includes trapping a heat shield within a gapped overlap spaced from an outer surface of a bearing support. | 02-04-2016 |
| 20160076399 | TANK DEVICE OF AN AERO ENGINE WITH AN APPLIANCE FOR INTRODUCING OIL - A tank device of an aero engine, which has an inlet appliance for the supply of an air-oil volume flow into a tank space of the tank device, a separation appliance for the separation of oil from the air-oil volume flow that is supplied to the tank space, a conduit area which is confined by at least one wall and in which an air-oil volume flow can be guided in the area of the tank space at least in certain areas, and an outlet appliance, in the area of which a volume flow can be discharged via a valve appliance from the tank space of the tank device. At least one appliance for introducing oil is provided, by means of which oil can be supplied into the area of the conduit area substantially against a flow direction of the air-oil volume flow which is forming during operation in the conduit area. | 03-17-2016 |
| 20160131034 | OIL DISTRIBUTOR - Described is an oil distributor comprising: an oil distribution conduit having an inlet end and an outlet; an oil delivery arrangement at the outlet of the oil distribution conduit, the oil delivery arrangement including a circumferential channel having a base, an upstream wall and a downstream delivery wall, wherein the delivery wall includes a plurality of circumferentially distributed delivery apertures extending therethrough. | 05-12-2016 |
| 20160160686 | LUBRICATION SYSTEM FOR A GEAR SYSTEM OF A GAS TURBINE - The present disclosure is directed to lubrication systems for gear systems of a gas turbine engine. In one embodiment, a lubrication system includes an auxiliary reservoir configured to store lubricant and a lubrication collection device. The auxiliary reservoir is contained within an annular structure of the gas turbine engine. The lubricant collection device can collect lubricant from a gear system of the gas turbine engine and direct collected lubricant to the auxiliary reservoir. The auxiliary reservoir is configured to receive collected lubricant by way of a channel within the annular structure. The lubrication system may compliment a main lubrication system, and in particular, when the main lubrication system is temporarily unable to supply lubricant to the gear system. | 06-09-2016 |
| 20160169042 | TEMPORARY POST MAINTENANCE OIL FILTER FOR GAS-TURBINE ENGINE | 06-16-2016 |
| 20160376947 | CONCENTRIC AXIAL OIL SCOOP - Aspects of the disclosure are directed to a shaft configured with a first hole, a bearing race coupled to the shaft and configured with a second hole and a third hole, and an oil scoop configured to receive oil and provide the oil to the shaft, where the first and second holes are oriented axially with respect to the shaft, and where the third hole is oriented radially with respect to the shaft. In some embodiments, a second oil scoop is configured to receive oil and provide the oil to the shall. The oil scoop and the second oil scoop may be concentric with respect to one another. | 12-29-2016 |
| 20170234222 | CIRCUMFERENTIAL LUBRICANT SCOOP | 08-17-2017 |
| 20180023024 | Auxiliary Emergency Protective Lubrication System for Metal Mechanical Components | 01-25-2018 |
| 20190145282 | TEMPORARY POST MAINTENANCE OIL FILTER FOR GAS-TURBINE ENGINE | 05-16-2019 |
