| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 201 | Scavenging pump | US180893 | 1980-08-25 | US4355542A | 1982-10-26 | Yoshio Tsutsumi; Tomoyuki Takahashi |
| A scavenging gear pump for use in a final drive comprising a drive gear and a driven gear, each being mounted for rotation and in mesh with each other. The drive gear is coupled with an input shaft and rotated thereby and has formed therein a fluid passage for communicating an outlet port of the pump with a fluid chamber formed in the input shaft. A plurality of guide passages are formed in the input shaft for supplying lubricant from the fluid chamber to rotary components, such as bearings and gears. | ||||||
| 202 | Gear machine with bearing cooling and lubrication | US567113 | 1975-04-10 | US4038000A | 1977-07-26 | Wilhelm Dworak |
| A gear machine, such as a gear pump or gear motor, has a housing in a chamber of which there are journalled two gears which mesh with one another. The shafts of the gears are journalled for rotation in bearing sleeves. The housing has an intake for fluid at low pressure and an outlet for fluid at high pressure. The gaps between the teeth of the gears which receive fluid at low pressure communicate with the intake exclusively by way of passages which extend in part along the sleeves and shafts, so that the entire quantity of incoming fluid is compelled to travel in these passages and to cool and lubricate the sleeves and shafts. | ||||||
| 203 | Reversible lubricant pump | US626117 | 1975-10-28 | US3994634A | 1976-11-30 | Arnold K. Riddle; Dale K. Bell |
| A reversible lubricant pump supplies oil to one of a pair of tandem drive axles. The pump includes a housing mounted on the axle helical gear cover to receive oil from an oil sump within the axle casing and to discharge oil to various components within the drive axle assembly. A drive gear and a driven gear are mounted within the housing for rotation in either direction to pump oil from a common inlet passage to a common outlet passage. The drive gear is mounted on a pump shaft which extends from within the housing to within the axle helical gear cover and has a pump gear fixedly mounted thereon. The pump gear is driven in response to movement of an input shaft of the axle assembly to cause the pump to operate in both the forward and reverse directions. A lubricating port within the housing extends from the pump discharge to the bearing of the pump shaft to provide the pump shaft with lubrication when the drive axle assembly is operated in the forward direction. | ||||||
| 204 | Gear type fluid motor or pump having fluid pressure compensating means | US28407472 | 1972-08-28 | US3879154A | 1975-04-22 | DIXON KENNETH RAYMOND; SUGDEN DAVID BURNETT |
| A gear-type fluid pump having a two-part housing with axially aligned major and minor bores formed in each housing part and gears mounted in each bore; the pump also includes pressure compensating means comprising a continuous band located around the housing so as to overlie the line of separation between the housing parts, the band engaging each housing part in fluid sealing relationship, and also including a fluid receiving chamber defined between the band and the housing parts with a passage connecting the fluid receiving chamber with fluid manifold means formed in the housing and communicating with the minor bore.
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| 205 | Pump fluid motor with pressurized bearing lubrication system | US3644071D | 1970-11-18 | US3644071A | 1972-02-22 | SCHULTHEIS STEPHEN K |
| A pump fluid motor rotating impeller-type mechanism with pressurized bearing lubrication comprising: a body having an impeller cavity with an inlet and outlet, and an oil reservoir in communication with the cavity; a pair of hollow cylinder-type gear impellers mounted in the impeller cavity, the interior of each impeller being in communication with the oil reservoir; a pair of sleeve bearings rotatably mounting each impeller in the body for rotation in the cavity in an intermeshing relationship so as to be capable of transferring fluid between the inlet and the outlet; one end of each of the impeller sleeve bearings being in communication with the transferred fluid about the impellers and the other end of each of the impeller sleeve bearings being in communication with the oil reservoir; an O-ring sealing the rotary face of each sleeve bearing, and another O-ring sealing the stationary face of each sleeve bearing; a shaft; means sealably mounting the shaft in the body with one end interconnected to one of the gear impellers and the other end extending from the body into a low pressure environment; and pressure reducing means communicating the oil reservoir with the exterior of the body for pressure application.
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| 206 | Pump | US3639089D | 1970-03-26 | US3639089A | 1972-02-01 | LOCK THOMAS |
| A dual-function pump assembly for pumping liquid with solid contaminants. The primary portion or section of the pump pumps liquid from an inlet to an outlet across a self-cleaning wash flow filter to a location of use. The secondary portion or section pumps clean liquid, which has passed through the filter, to lubricate and purge the running clearances and rubbing surfaces of the assembly.
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| 207 | Pressure loaded pump | US3528756D | 1968-12-04 | US3528756A | 1970-09-15 | NORLIN FRANCIS E; KERESMAN MICHAEL A JR |
| 208 | Pump | US57990666 | 1966-09-16 | US3404633A | 1968-10-08 | CONNELLY LAVERN R |
| 209 | Shaft sealing for spinning pump | US48464565 | 1965-09-02 | US3363577A | 1968-01-16 | IJSBRAND HEIJNIS JAMES WATT |
| 210 | Fuel pump | US15707050 | 1950-04-20 | US2682836A | 1954-07-06 | ORR JR ANDREW WILLIAM |
| 211 | Rotary pump | US62996545 | 1945-11-21 | US2521236A | 1950-09-05 | MACPHERSON WILLIAM H |
| 212 | Metering pump for cellulose compounds | US27724528 | 1928-05-12 | US1972271A | 1934-09-04 | FREDERIC MCINTYRE |
| 213 | Rotary gear-pump. | US1910544640 | 1910-02-18 | US1132747A | 1915-03-23 | SUNDH AUGUST |
| 214 | PUMP DEVICE | US16334779 | 2017-09-25 | US20190234404A1 | 2019-08-01 | Kazuhiro HOMMA; Yosuke ITO |
| A pump device includes a shaft, a motor that rotates the shaft, and a pump that is driven by the motor via the shaft and discharges oil. The pump device includes a first flow path for the oil that connects an interior of the pump and an interior of a housing, a second flow path for the oil provided between a stator and a rotor of the motor, and a third flow path for the oil that is connected to a suction port of a pump through an outside of the stator and the rotor in a radial direction from the second flow path. In the first flow path, oil passes through at least one of a space between the shaft and a bearing, a space between the bearing and a pump case, and an interior of the bearing. | ||||||
| 215 | EXTERNAL GEAR PUMP FOR A WASTE HEAT RECOVERY SYSTEM | US16328790 | 2017-06-20 | US20190211819A1 | 2019-07-11 | Guido Bredenfeld; Jakob Branczeisz; Marc Laetzel; Matthias Riedle |
| The invention relates to an external gear pump (1) having a pump housing (2). An inlet (2a), an outlet (2b), and a working chamber (6) are formed in the pump housing (2). A first gear (11), which is arranged on a first shaft (21), and a second gear (12), which is arranged on a second shaft (22), are arranged in the working chamber (6) in such a way that said first and second gears mesh with each other. Both gears (11, 12) have teeth having a tooth width (b). The first shaft (21) is radially supported in at least one plain bearing (61), and the second shaft (22) is radially supported in at least one further plain bearing (63). The plain bearing (61) has a bearing diameter (D63), and the further plain bearing (63) has a further bearing diameter (D63). During operation of the external gear pump (1), a delivery volume (V) of a working medium can be conveyed from the inlet (2a) to the outlet (2b). The two bearing diameters (D61, D63) are selected in such a way that the ratio V/(D612*b) is less than 1.1 and the ratio V/(D632*b) is less than 1.1. | ||||||
| 216 | PLATE GEAR PUMP AND HYDRAULIC CENTERING PINS | US15846763 | 2017-12-19 | US20180172001A1 | 2018-06-21 | Matthieu BARDIN; Christophe BONDRAN |
| A lightweight gear pump easy to manufacture, having a reduced manufacturing cost, while giving sufficient performances. It consists of: A gear, three metal plates, placed on each other, an intermediate plate of which including an eight-shaped cavity adapted to house the gear, and two peripheral plates having the function of enclosing the gear in the cavity, a circuit for fluid supply to the gear, centering means to align the three plates above each other, the three metal plates being provided with centering holes in the axial direction, adapted to receive the centering means, the device according to the invention is particularly intended for liquid transfer applications for automobiles or heavy trucks. | ||||||
| 217 | PUMP UNIT AND ACTUATOR | US15578522 | 2016-06-02 | US20180156214A1 | 2018-06-07 | Takayuki OGAWA; Takuya KOUGE |
| There is provided a pump unit capable of shortening the overall length thereof and maintaining mechanical efficiency even after long-term use and also to provide an actuator having such a pump unit, the pump unit (U) includes a hydraulic pump (P), a motor (M), a coupling (8) coupling a drive shaft (2) of the hydraulic pump (P) and a shaft (7) of the motor (M), a holder (H) having a housing portion (L) that is hollow and houses the coupling (8), and an introduction passage (D) that guides the hydraulic oil to the housing part (L). | ||||||
| 218 | GEROTOR ASSEMBLY | US15254284 | 2016-09-01 | US20180058450A1 | 2018-03-01 | Sean M. McGowan; Joel H. Pike; John B. Davis; Bryan K. Pryor; Mark R. Claywell; Jeremy T. Demarest |
| A gerotor assembly is provided which includes a crankshaft, an inner drive gear, an outer driven gear and a housing defining an oil groove. The inner drive gear defines a plurality of inner gear teeth. The outer driven gear defines a plurality of outer gear teeth operatively configured to engage with the inner gear teeth. The outer drive gear may define a plurality of passageways to form a hydrodynamic film between the outer driven gear and the housing. Alternatively, a high pressure oil pump may feed oil into the oil groove in order to distribute a hydrodynamic film. | ||||||
| 219 | Gear pump bearings with hybrid pads | US14531373 | 2014-11-03 | US09890813B2 | 2018-02-13 | Brandon T. Kovach; Steven A. Heitz |
| A gear pump includes a drive gear mounted to a first gear shaft, a driven gear meshable with the drive gear, a plurality of journal bearings, and a first porting path. The first porting path is adapted to provide high pressure fluid communication from a discharge of the gear pump to a first hybrid pad location for a first journal bearing selected from the plurality of journal bearings, the first hybrid pad location circumferentially adjacent to a first fluid film location. Each location is disposed annularly between an inner surface of the first journal bearing, and an outer surface of the first gear shaft or second gear shaft corresponding to the first journal bearing. | ||||||
| 220 | External Rotor Pump | US15722164 | 2017-10-02 | US20180023562A1 | 2018-01-25 | Markus GOETTLINGER; Ulrich GUTZER |
| An external rotor pump, in particular a hydraulic external rotor pump, has a first component which is configured as an outer rotor with a sliding surface which is arranged on the outer side thereof, and a second component which is configured as an opposing body and in which the outer rotor is mounted rotatably by way of the sliding surface thereof on an inner guide surface of the opposing body and is in mechanical contact with the inner guide surface. An inner rotor which is mounted such that it can be rotated eccentrically with respect to the outer rotor is provided. One of the rotors can be driven, in order to be set into a rotational movement, and the rotors are coupled to one another such that, when the drivable rotor is driven, the other rotor is likewise set into a rotational movement as a result, in order to convey fluid from a suction region to a pressure region of the external rotor pump. The sliding surface or the guide surface has a surface structure which has a load-bearing region and a non-load-bearing region which is depressed in contrast with the former. The result is that the non-load-bearing region is saved from contact between the guide surface and the sliding surface which is mounted thereon. | ||||||
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