| Entries |
| Document | Title | Date |
|---|
| 20080279680 | Multistage Centrifugal Compressor - A multistage centrifugal compressor includes a rotary shaft, and multistage impellers attached to the rotary shaft. Each of the impellers includes a hub, a shroud and blades therebetween in a radial cascade arrangement. An annular suction passage for guiding the fluid flow from the inward radial direction to a blade inlet is disposed upstream of the centrifugal impeller. A diffuser is disposed downstream of the centrifugal impeller. A bend portion is disposed downstream of the diffuser, and a return channel with a guide blade portion is disposed downstream of the bend portion. The annular suction passage at a hub side includes an axial parallel portion. | 11-13-2008 |
| 20090010756 | Combined hydrodynamic - inertial rotoset - selfbooster - The Combined Hydrodynamic-Inertial Rotoset-Selfbooster is a non-fuel power unit which includes:
| 01-08-2009 |
| 20090155063 | INTERMEDIATE CASING FOR AN AIRCRAFT JET ENGINE, OF IMPROVED DESIGN - The invention relates to an intermediate casing ( | 06-18-2009 |
| 20090202344 | ROTATING ASSEMBLY FOR A TURBOMACHINE - A rotating assembly for a turbomachine includes a plurality of rotating members that extend radially outward from a central hub. Each of the plurality of rotating members includes a base portion detachably mounted to the central hub, a tip portion, a mid-span portion that extends between the base portion and the tip portion, and a shroud portion positioned at one of the tip portion and the mid-span portion. The shroud portion includes a pressure side and a suction side. At least one hard face interface member is secured to at least one of the suction side and the pressure side of the shroud portion. The at least one hard face interface member is both mechanically interlocked with, and metallurgically bonded to, the shroud portion. | 08-13-2009 |
| 20090214331 | Curved tooth coupling for a miniature gas turbine engine - A rotor assembly for a miniature gas turbine propulsion system comprises a centrifugal compressor wheel, a turbine wheel, a shaft and a tie bolt. The centrifugal compressor wheel includes a first curved tooth coupling, and the turbine wheel includes a second curved tooth coupling interconnected with the first curved tooth coupling. The shaft extends from the centrifugal compressor wheel, and the tie bolt extends between the shaft and the turbine wheel to bring the first curved tooth coupling into compression with the second curved tooth coupling. As such, the compressor wheel and the turbine wheel are assembled and remain, over the operational envelope of the propulsion system, in a reliably robust aligned configuration. | 08-27-2009 |
| 20100028141 | MULTISTAGE CENTRIFUGAL COMPRESSOR - In a multistage centrifugal compressor, a plurality of impellers is attached to the same rotary shaft. Vaned Diffusers and vaneless diffusers are used, as diffusers, for respective compressor stages configuring the compressor. The vaned diffusers are continuously used from the first compressor stage to the middle compressor stage, and the vaneless diffusers are used for the last compressor stage and the previous stage. While high efficiency is maintained at the compressor stages having the vaned diffusers, an operating flow range is secured at the compressor stages having the vaneless diffusers. | 02-04-2010 |
| 20100119363 | High-Efficiency, Multi-Stage Centrifugal Pump and Method of Assembly - A high-efficiency, multi-stage centrifugal pump and method of assembly. The pump can include three pump stages with each one of the three pump stages including a front casing, a back casing, an impeller, and a bladed diffuser. The front casing and the back casing are removeably coupled around the impeller and the bladed diffuser. In the three-stage pump, the fluid can be pumped at a flow rate between about 300 liters per second and about 500 liters per second with an efficiency between about 86% and about 91%. The method includes separately casting, machining, and polishing each one of the front casing, the back casing, the impeller, and the bladed diffuser. | 05-13-2010 |
| 20100124491 | MULTISTAGE RADIAL TURBOCOMPRESSOR - A multistage radial turbocompressor has at least first, second, and third intake parts each forming a respective intake spaced along an axis and first, second, and third output parts each forming a respective output axially juxtaposed with the respective intakes. Respective first, second, and third fans having axially directed vanes are rotatable in the housing formed by the parts between the intakes and outputs. A shaft centered on the axis carries the first, second, and third fans. One of the fans is back-to-back with another of the fans with the vanes of the one fan facing axially oppositely away from the vanes of the other of the fans. Radial bearings support the shaft in the housing, and an axial bearing between the one fan and the other fan supports the shaft in the housing. | 05-20-2010 |
| 20100150705 | Gas turbine engine - A gas turbine engine ( | 06-17-2010 |
| 20100178162 | Split Impeller Configuration For Synchronizing Thermal Response Between Turbine Wheels - An impeller system with split impeller configuration between adjacent turbine wheels for synchronizing their thermal response is provided. Exemplary embodiments include a turbomachine having a turbine, a compressor and a rotor disposed between the turbine and the compressor, and an impeller system. An impeller system includes a turbomachine wheel, and another turbomachine wheel disposed adjacent to the first turbomachine wheel, a rabbet joint defined between the first and second turbomachine wheels and a split impeller disposed on the first and second turbomachine wheels. | 07-15-2010 |
| 20100189554 | APPARATUS FOR REGULATED DELIVERY OF A GAS, IN PARTICULAR BREATHING APPARATUS - This apparatus ( | 07-29-2010 |
| 20100215484 | TURBINE ENERGY GENERATING SYSTEM - A turbine energy generating system includes a combustion chamber for converting fuel into energy by igniting an air and fuel mixture, a turbine for converting energy produced by the combustion chamber into mechanical energy, and a generator for converting mechanical energy produced by the turbine into electrical energy in the range of 1 to 15 kilowatts. | 08-26-2010 |
| 20100232949 | MULTI-STAGE CENTRIFUGAL PUMP (AXIAL FACE SEAL) - An axial face seal ( | 09-16-2010 |
| 20100232950 | MULTI-STAGE CENTRIFUGAL PUMP ASSEMBLY (SHAFT) - With the multi-stage centrifugal pump assembly, the connection between the motor shaft ( | 09-16-2010 |
| 20100232951 | MULTI-STAGE CENTRIFUGAL PUMP ASSEMBLY (BEARING CARRIER) - A multi-stage centrifugal pump assembly which is manufactured in the same construction type with cast components on the one hand, and with a stainless steel lining formed of sheet metal on the other hand, includes a bearing carrier ( | 09-16-2010 |
| 20100329859 | FAN ASSEMBLY - A fan assembly includes a first fan and a second fan mounted on the first fan. The first fan includes a plurality of locking units and a plurality of positioning dots extending upwardly therefrom. Each of the locking units includes a perpendicular portion and a horizontal portion. The second fan defines a plurality of through holes therein corresponding to the locking units of the first fan, and a plurality blind holes therein corresponding to the positioning dots of the first fan. Each of the locking units of the first fan extends into a corresponding through hole of the second fan with the horizontal portion thereof engaging with the second fan near an edge of the through hole. Each of the positioning dots of the first fan is received in a corresponding blind hole of the second fan. | 12-30-2010 |
| 20110027077 | SHAFTLESS CENTRIFUGAL PUMP - A centrifugal pump has impellers that are not connected by a central shaft. More specifically, each of the impellers has a separate hub segment that interlocks with an adjacent hub segment from another impeller. The hub segments are rotated in unison with each other to rotate the impellers. | 02-03-2011 |
| 20110116914 | DECENTRALIZED SOURCE SEPARATION SEWAGE SYSTEM - An apparatus and method for treating sewage The apparatus receives sewage at a receiving compartment and separates solids from liquids at the receiving compartment. The solids can be extracted from the receiving compartment by an auger. The liquid sewage flows through a series of treatment compartment containing rotating biological contactor discs for treatment by these rotating biological contactor discs. The rotating biological contactor discs are secured to a rotating shaft. The rotating shaft and the auger are powered by a quasi-submerged turbine displaced by a flow of air. | 05-19-2011 |
| 20110150642 | Disc turbine with streamlined hub vanes and co-axial exhaust tube - In a disc turbine for operation from steam, including superheated steam, a stack of horizontally oriented discs is fitted centrally with a hub having a closed upper end from which a driveshaft extends upwardly, supported by a bearing system. The hub is configured with identical vanes arrayed uniformly about the central axis and specially shaped to accomplish a set of desired flow path objectives. The vanes are generally tapered such that their cross-sectional shape evolves from predominantly solid material in area at the top of the hub to predominantly open area at the bottom of the hub, where the flow paths proceed downwardly into a tubular exhaust passageway. The entry to the exhaust passageway may take the form of effectively a hollow portion of the shaft in the exhaust region, which may be supported from the enclosure by a bearing set. The central opening in each disk, and thus in the stack, and in the periphery of the hub are both configured with a complementary mating interface pattern: e.g. three ⅓ revolution spiral paths in a radial array with a semicircular-shaped key step extending radially across each the spiral end offset, the set of key steps serving to transmit drive torque from the discs to the hub while avoiding direct solid connection therebetween, for purposes of accommodating operational thermal expansion. A downward-facing tubular exhaust passageway allows an unimpeded vortex exhaust gas flow path that evolves smoothly from the spiral flow path of gas from disc stack, as guided by the specially-shaped vanes in the hub. | 06-23-2011 |
| 20110171015 | CENTRIFUGAL COMPRESSOR AND FABRICATING METHOD THEREOF - Provided is a centrifugal compressor. In the centrifugal compressor, a plurality of sub-compressors each of which includes an impeller are connected in parallel to increase a compression capacity, the plurality of sub-compressors are each assembled to a single common shaft that is rotated by a driving unit, and the impellers of the plurality of sub-compressors are disposed in opposing directions. The centrifugal compressor reduces a production cost, and cancels thrusts during driving so as to reduce a loss of a bearing, thereby increasing efficiency of the compressor. | 07-14-2011 |
| 20120003084 | FLOW DISCOURAGING SYSTEMS AND GAS TURBINE ENGINES - A flow discouraging system includes a stator assembly, a rotor assembly, and a plurality of fingers. The stator assembly includes one or more stationary components forming a side wall, the side wall including an annular groove defined by an outer axially-extending surface, an inner axially-extending surface, and a radial surface extending between the outer and inner axially-extending surfaces. The rotor assembly is disposed adjacent to and spaced apart from the stator assembly to form a portion of a cavity and includes an annular rim extending at least partially into the annular groove. The plurality of fingers is disposed in the annular groove and extends from the one or more stationary components the annular rim. | 01-05-2012 |
| 20120134792 | WATERPROOF AND DUSTPROOF FAN MOTOR STRUCTURE AND FAN USING THE SAME - A waterproof and dustproof fan motor structure includes a base, an annular enclosure, and a stator assembly. The base has a vertically forward extended bearing cup; the annular enclosure internally defines a closed annular space and is externally fitted around the bearing cup; and the stator assembly is disposed in the closed annular space of the enclosure. The waterproof and dustproof fan motor structure can be assembled to a frame and a rotor assembly to complete a fan. With the stator assembly disposed in the closed annular space of the enclosure, the fan motor is protected against damage caused by moisture and dust, and the stator assembly can be easily removed from the closed annular space for necessary maintenance and repair to thereby reduce the bad yield and the manufacturing cost of fan and fan motor. | 05-31-2012 |
| 20120251307 | ROTOR OF ROTARY MACHINE AND ROTARY MACHINE | 10-04-2012 |
| 20120251308 | MULTI-STAGE CENTRIFUGAL PUMP UNIT - A multi-stage centrifugal pump assembly includes at least two impellers ( | 10-04-2012 |
| 20130011247 | CENTRIFUGAL FAN WITH A MULTISTAGE IMPELLER - A centrifugal fan with a multistage impeller includes a hub and a multistage impeller having at least two stages of blade assemblies. The hub has a top section and a circumferential section extending from the top section. At least one extension section outward extends from the circumferential section. The multistage impeller is connected with one end of the extension section. The multistage impeller includes a first-stage blade assembly and a second-stage blade assembly. The second-stage blade assembly has a diameter larger than that of the first-stage blade assembly. The centrifugal fan can be installed in an application environment with limited space without being interfered with by peripheral parts. Also, the centrifugal fan is able to provide an optimal flow and wind pressure at the same rotational speed to lower the load on the motor and reduce the noise. | 01-10-2013 |
| 20130089416 | FABRICATED GAS TURBINE DUCT - A vane structure of a gas turbine engine includes a plurality of vanes extending radially between outer and inner shrouds. At least the outer shroud is formed substantially from a single-piece annular skin of sheet metal. A plurality of reinforcing plates are placed against and are affixed to an outer surface of the skin of the outer shroud in respective joining locations where a radial outer end of each of the respective vanes joins the skin. | 04-11-2013 |
| 20150292333 | COMPRESSOR WHEEL OF A RADIAL COMPRESSOR OF AN EXHAUST-GAS TURBOCHARGER - A compressor wheel ( | 10-15-2015 |
| 20150322961 | A ROTOR FOR A RADIAL COMPRESSOR AND A METHOD FOR CONSTRUCTION THEREOF - A rotor for a radial compressor is provided. An axial shaft of the radial compressor includes longitudinal axial shaft segments. The rotor includes rotor discs, which are placed adjacent to one another, and which extend along a longitudinal axis of the radial compressor. The rotor discs include the respective axial shaft segments and impellers. A coupling means is provided to couple the rotor discs with one another. The coupling means permits reversible axial splitting of the axial shaft into the respective axial shaft segments. | 11-12-2015 |
| 20150330391 | BACK-TO-BACK CENTRIFUGAL PUMP - A back-to-back centrifugal pump comprising a pump inlet, a pump outlet, a pump shaft, a set of first stages, and a set of second stages in a back-to-back arrangement. Between the two sets of stages an intermediate crossover module is arranged. The first and second sets of stages comprise respective first outer diaphragms and second outer diaphragms. The outer diaphragms and the intermediate crossover module are stacked together and form a pump casing. The intermediate crossover module forms at least one axial transfer channel between the two sets of stages, and a fluid connection between the set of second stages and the pump outlet. The second diaphragms comprise each at least one peripherally arranged through aperture. The through apertures are aligned to form at least one passageway, which fluidly connects the axial transfer channel with a most upstream one of the impellers of the second set of stages. | 11-19-2015 |
| 20150330395 | SEAL OF A COMPRESSOR ROTOR - A compressor rotor comprising a pinion shaft which has multiple interconnected segments that are arranged axially one behind the other and including a multipart seal which seals the pinion shaft is provided. The pinion shaft has a rotor segment which supports a rotor, a connection segment, and a toothed segment arranged axially between the rotor segment and the connection segment, the toothed segment having a toothing at each of the two ends of the toothed segment. The toothed segment is held axially between the rotor segment and the connection segment via toothings by means of corresponding mating toothings at ends of the rotor segment and the connection segment, and a multipart seal sealing element which is connected to the toothed segment in an at least force-fitting manner is arranged on said toothed segment. | 11-19-2015 |
