| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 101 | Bearing arrangement and wear indicator for a liquid ring vacuum pump | US14359625 | 2012-11-22 | US09964110B2 | 2018-05-08 | Heiner Kösters; Matthias Tamm; Daniel Schütze |
| A liquid-ring vacuum pump comprises a pump casing and a shaft eccentrically mounted in the pump casing. An impeller and a rotor of a drive motor are connected to the shaft. A disk cam is arranged parallel to the impeller. A first main bearing for the shaft is arranged between the impeller and the rotor of the drive motor, on the plane of the disk cam. The impeller is arranged between the first main bearing and a second main bearing. The arrangement of the bearings prevents the shaft from bending, thus allowing the leakage gap between the impeller and the disk cam to be kept small. | ||||||
| 102 | FUEL PUMP | US15569200 | 2016-04-19 | US20180112659A1 | 2018-04-26 | Hiromi SAKAI; Daiji FURUHASHI |
| A fuel pump includes: an outer gear having a plurality of inner teeth; an inner gear having a plurality of outer teeth and eccentrically meshing with the outer gear; and a pump housing that defines a cylindrical gear housing chamber housing the outer gear and the inner gear to be rotatable. The outer gear and the inner gear rotate, while expanding and contracting a volume of a plurality of pump chambers formed between the outer gear and the inner gear, to sequentially draw fuel into and discharge from the pump chamber. An inner circumference part of the pump housing has a radially-inside corner part opposing a radially-outside corner part of an outer circumference part of the outer gear, and the pump housing has an annular groove formed in an annular shape all around the radially-inside corner part. | ||||||
| 103 | BEARING PLATE FOR SUPERCHARGER | US15837047 | 2017-12-11 | US20180100544A1 | 2018-04-12 | Justin Hopkins; Matthew Swartzlander |
| A supercharger constructed in accordance to one example of the present disclosure includes a housing, first and second rotors, a bearing plate and a pair of sleeves. The first and second rotors are received in cylindrical overlapping chambers of the housing, the first rotor supported by a first rotor shaft, the second rotor supported by a second rotor shaft. The bearing plate is coupled to the housing and has an oil cavity side and an air cavity side. The bearing plate is formed of aluminum. The pair of sleeves can be received by the bearing plate and support respective bearings rotatably supporting respective first and second axle shafts. The pair of sleeves are formed of steel. | ||||||
| 104 | GEAR PUMP BEARING | US15618664 | 2017-06-09 | US20180051742A1 | 2018-02-22 | Martin YATES |
| The invention provides a gear pump bearing block and method of manufacturing gear pump bearing block. Bearing block includes bush formed of antifriction alloy, having a cylindrical portion providing bore adapted to receive bearing shaft of a gear of pump, and further having a flange portion extending radially outwardly at end of cylindrical portion to provide thrust face adapted to slidingly engage with side surface of gear. Bearing block also has backing layer covering radially outer surface of cylindrical portion and rear face of flange portion, backing layer being formed of relatively less dense alloy compared to antifriction alloy. Furthermore, there is an annular formation of one or more stiffening members, formation surrounding bore, the, or each, stiffening member being embedded in flange portion, and the, or each, stiffening member being formed of material having higher elastic modulus than antifriction alloy. | ||||||
| 105 | Compressor Having A Sleeve Guide Assembly | US15597425 | 2017-05-17 | US20170350396A1 | 2017-12-07 | Xiaogeng SU; Srinivasan RAMALINGAM |
| A compressor may include a shell, a bearing housing, an orbiting scroll, and a non-orbiting scroll. The bearing housing is supported within the shell and includes a central body and a plurality of arms. Each arm extends radially outwardly from the central body and has a first aperture. The orbiting scroll is supported on the bearing housing. The non-orbiting scroll is meshingly engaged with the orbiting scroll and includes a plurality of second apertures. Each second aperture receives a plurality of bushings and a fastener. The fastener extends through the bushings and into a corresponding one of the first apertures in the bearing housing to rotatably secure the non-orbiting scroll relative to the bearing housing while allowing relative axial movement between the non-orbiting scroll and the bearing housing. | ||||||
| 106 | GEROTOR PUMP | US15534077 | 2015-12-03 | US20170335844A1 | 2017-11-23 | Andreas BLECHSCHMIDT |
| A gerotor pump includes a rotor wherein only on the face wall of the rotor that lies adjacent to a pressure kidney and a suction kidney, a lubrication surface inclined in the direction of rotation of the rotor, relative to the surface plane of the face wall of the rotor, is disposed on each tooth, in each instance, over its tooth height, either starting directly in the center tooth plane or starting “offset” ahead of the center tooth plane in the direction of rotation of the rotor, which surface is formed from a level surface or multiple, always level partial surfaces that follow one another, which enclose an angle of inclination relative to the surface plane of the face wall of the rotor, in each instance, which angle lies in the range from 0.2° to 7°, in each instance. | ||||||
| 107 | COMPRESSOR EXHAUST STRUCTURE, SCREW COMPRESSOR AND AIR-CONDITIONING UNIT HAVING SAME | US15508936 | 2014-12-26 | US20170284399A1 | 2017-10-05 | Qiaoming YANG; Rihua LI; Tianyi ZHANG; Guanghui XIA; Gongsheng TAN; Weijun LIN; Hao LONG; Yushi BI; Yanhai PENG; Kang XU |
| Disclosed are a compressor exhaust structure, a screw compressor and an air-conditioning unit, wherein the compressor exhaust structure comprises a machine body (2), an exhaust bearing seat (1) provided on an exhaust end of the machine body (2), and an oil separating barrel (5) covering the exhaust bearing seat (1). The exhaust bearing seat (1) is provided with a first exhaust chamber, the machine body (2) is provided with a second exhaust chamber (21), and a third exhaust chamber is formed between the exhaust bearing seat (1) and an inner wall of the oil separating barrel (5); the first exhaust chamber is in fluid communication with the second exhaust chamber (21), the second exhaust chamber (21) is in fluid communication with the third exhaust chamber, and the third exhaust chamber is in fluid communication with a discharge port of the oil separating barrel (5). The above-mentioned compressor exhaust structure enables gas flow to firstly enter the machine body (2) via the exhaust bearing seat (1) and then to flow out of the machine body (2), which extends the flow path of the gas flow, facilitates the isolation of gas flow noise, and reduces gas flow pulsation. | ||||||
| 108 | Scroll Fluid Machine | US15505435 | 2015-03-17 | US20170268340A1 | 2017-09-21 | Hisashi OOTANI; Yasuomi MATSUMOTO; Takahisa TOBE |
| Scroll fluid machine (1) in which the dislodgement of a slide bush (56) and a spring (61), which are provided in an eccentric bush (36), is prevented. Provided in receiving hole (58) of eccentric bush (36) are slide bush (56), which is movable in the direction of eccentricity, and spring (61), which biases slide bush (56) in a moving direction. A spring holding section (56b) and engagement projections (56a) are formed on slide bush (56). After slide bush (56) is placed in the receiving hole (58), engagement projections (56a) engage with eccentric bush (36) in a state in which slide bush (56) has been moved by the biasing force of spring (61), thus preventing slide bush (56) from falling off the receiving hole (58), and the spring holding section (56b) prevents the spring (61) from falling off the receiving hole (58). | ||||||
| 109 | Internal gear pump | US14391556 | 2013-05-24 | US09765774B2 | 2017-09-19 | Hirohito Terashima; Fumihiko Toyoda |
| An internal gear pump includes a housing having a pump chamber in which an inner rotor and an outer rotor are arranged. A suction port in communication with a suction path and a discharge port in communication with a discharge path are formed at the housing. The pump chamber includes an inner wall having a suction region at a suction port-side and a discharge region at a discharge port-side. The suction region includes a first suction region extending towards the suction path from a pressing point, where the outer rotor is pressed when the internal gear pump is in operation, and a second suction region between the first suction region and the discharge region. A groove that enlarges a clearance between the outer rotor and the inner wall is formed in the first suction region, but the groove is not formed in the second suction region. | ||||||
| 110 | TWO-CYLINDER HERMETIC COMPRESSOR | US15427899 | 2017-02-08 | US20170248139A1 | 2017-08-31 | Shiho FURUYA; Hideyuki HORIHATA; Hiraku SHIIZAKI |
| In the two-cylinder hermetic compressor, a main bearing is disposed on one surface of a first cylinder, an intermediate plate is disposed on another surface of the first cylinder, the intermediate plate is disposed on one surface of a second cylinder, and an auxiliary bearing is disposed on another surface of the second cylinder. A shaft is constituted by a main shaft portion which has a rotor attached thereto and is supported by the main bearing, a first eccentric portion having a first piston attached thereto, a second eccentric portion having a second piston attached thereto, and an auxiliary shaft portion supported by the auxiliary bearing. A thrust receiving portion is provided on a side of the second eccentric portion facing the auxiliary shaft portion, and the auxiliary bearing is provided with a thrust surface on which the end face of the thrust receiving portion slides while contacting therewith. The thrust surface is provided with a ring groove. | ||||||
| 111 | ROTARY COMPRESSOR | US15501301 | 2015-07-29 | US20170218955A1 | 2017-08-03 | Kousuke NISHIMURA; Takeyoshi OHKAWA; Eiji KUMAKURA |
| A rotary compressor includes a cylinder having a cylinder chamber and bush groove, a piston housed in the cylinder chamber, a blade formed with the piston to separate the cylinder chamber into low and high pressure chambers, and a pair of bushes. The bushes are fitted in the bush groove with flat surfaces facing each other to hold the blade. The flat surface of at least the bush on the low-pressure side has a crowned portion starting from a position closer to the back pressure space than a swing center position, and extending toward an edge of the bush closer to the cylinder chamber. The swing center position is where a gap between the blade and the bush is constant while the piston rotates eccentrically. | ||||||
| 112 | Compressor | US14346701 | 2012-08-29 | US09709058B2 | 2017-07-18 | Takehiro Kanayama; Naoto Tomioka; Yuuichirou Watanabe |
| A compressor includes a closed container, a compression element disposed in the closed container, and a motor disposed in the closed container to drive the compression element via a shaft. The compression element includes a first and second bearings supporting the shaft. At least one cylinder having at least one cylinder chamber is disposed between the first and second bearings, with at least one roller fitted to the shaft disposed in the at least one cylinder chamber. The first bearing is disposed closer to the motor than the second bearing. The first and second bearings have first and second annular grooves formed in first and second opposing surfaces opposed to end faces of the at least one roller. The first and second annular grooves are opened to the at least one cylinder chamber. A width of the second annular groove is larger than a width of the first annular groove. | ||||||
| 113 | PUMP DEVICES | US15277778 | 2016-09-27 | US20170191481A1 | 2017-07-06 | Clark J. Shafer; William R. Blankemeier; James A. Nard; Jorge G. Murphy; Radosav Trninich; Kris Malorny |
| The disclosure provides pumps that include improvements in construction, which involve bearing surfaces, recirculation paths, mounting footprints, impeller vane starting diameters, canister assemblies, and rotor assembly bushing configurations. | ||||||
| 114 | Bearing face geometry for gear pump | US13034864 | 2011-02-25 | US09677559B2 | 2017-06-13 | Weishun Ni; Satish Shantilal Shah; Timothy P. Walgren |
| A bearing includes a bridge land geometry having a finger cut that defines a width ISW, a center of the width ISW displaced from a shaft axis a radial distance ISR, a ratio of ISW/ISR between 0.074-0.293, to reduce cavitation and pressure ripple. | ||||||
| 115 | Aircraft main engine fuel pump with multiple gear stages using shared journals | US13918243 | 2013-06-14 | US09611847B2 | 2017-04-04 | Simon Martin-Dye |
| A multistage gear pump assembly includes first and second gear pumps that use common shafts and are axially separated by a fixed spacer within the housing. Pressurized bearings are provided at opposite axial ends of the first and second gear pumps. The second gear pump handles cruise and idle operations of the aircraft while the first gear pump stage assists in meeting higher demand modes of engine operation. Otherwise, the first gear pump is maintained at a minimal pressure to reduce energy consumption and still provide desired stability and eliminate issues associated with bearing oil whirl associated with prior known arrangements. When additional assistance is required, such as during takeoff, climb, or windmill relight, the first gear pump advantageously contributes to the increased pressure. | ||||||
| 116 | Double-ended scroll compressor lubrication of one orbiting scroll bearing via crankshaft oil gallery from another orbiting scroll bearing | US14448132 | 2014-07-31 | US09598960B2 | 2017-03-21 | Jerry Allen Rood; Scott Joseph Smerud; Keith Adam Novak; Joseph M. Heger; Derrick Lepak; Michael Gerard Benco |
| A scroll compressor orbiting scroll bearing lubrication system includes a scroll compressor crankshaft having a lubricating fluid gallery extending therethrough between a first stage orbiting scroll and a second stage orbiting scroll. The first stage employs an orbiting scroll radial bearing and an orbiting scroll hydrodynamic thrust bearing, while the second stage employs an orbiting scroll radial bearing and an orbiting scroll hydrostatic thrust bearing. Lubricating fluid is supplied to the second stage orbiting scroll radial bearing via the lubricating fluid gallery. | ||||||
| 117 | PRESS-FIT BEARING HOUSING WITH NON-CYLINDRICAL DIAMETER | US15238397 | 2016-08-16 | US20160356274A1 | 2016-12-08 | Ronald J. Duppert; Xianghong Wang |
| A scroll compressor that includes a housing and scroll compressor bodies disposed in the housing. A motor is disposed within the housing and operably connected to a drive shaft for driving one of the scroll compressor bodies. The drive shaft is rotationally supported at one end by a crankcase which includes a bearing housing and a bearing. The crankcase includes a plurality of openings or gas passages passing through the crankcase, as well as a plurality of generally cylindrical sections positioned respectively between adjacent openings. The cylindrical sections define contact regions which can engage an inner periphery of the housing when the crankcase is mounted therein. | ||||||
| 118 | COMPRESSOR AND METHOD OF ASSEMBLING COMPRESSOR | US15153212 | 2016-05-12 | US20160344253A1 | 2016-11-24 | Zhou Xueyou; Ma Haiyun; Wu Zhipeng; Zhang Zhiguo; Meng Zhiqiang |
| A compressor and a method of assembling the compressor are provided. The compressor includes: a shell; a motor arranged in the shell, the motor having a stator, a spacer mounted with a first bearing therein, a drive shaft supported by the first bearing and a rotor fixed onto the drive shaft; a low bearing support; a positioning member positioning the second bearing and being connected to the low bearing support; and a second bearing connected to the positioning member and/or the low bearing support and supporting the drive shaft. Furthermore, the positioning member may be removed from or maintained in the compressor after it is assembled. The present disclosure can avoid the adverse effects of the gravity of the rotor and the drive shaft and/or the magnetic force between the rotor and the stator on positioning the bearings and the drive shaft and can improve positioning accuracy and assembling efficiency. | ||||||
| 119 | Gear pump, pumping apparatus including the same, and aircraft fuel system including gear pump | US13487683 | 2012-06-04 | US09482225B2 | 2016-11-01 | Steven Alan Lewis; David Lawrence |
| A pumping apparatus includes a gear pump in fluid communication with a boost pump. The gear pump includes a pump housing, a first gear, and a second gear. The first and second gear have gear teeth and trunnions on opposite sides thereof, and are disposed in the pump housing. The gear teeth of the first and second gear are meshed in a mesh region. An inlet cavity is defined adjacent to the first and second gear, on one side of the mesh region. A pump outlet is defined on an opposite side of the mesh region from the inlet cavity. A bearing is configured to support at least one trunnion of the first gear and/or the second gear. A bearing interface is defined between the bearing and the at least one trunnion. A flow path is defined between the bearing interface and the inlet cavity. | ||||||
| 120 | MINIATURE HIGH PRESSURE PUMP AND ELECTRICAL HYDRAULIC ACTUATION SYSTEM | US14912758 | 2014-08-19 | US20160201694A1 | 2016-07-14 | Andrea VACCA; Gabriele ALTARE |
| Methods and apparatus pertaining to positive displacement pumps, and further to hydraulic actuation systems. In some embodiments the pumps are gear pumps with bi-directional operation. In some embodiments the actuation system includes a motor-driven, reversible operation gear pump providing fluid under pressure to a rod and cylinder. | ||||||
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