| 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 | Reversible unidirectional flow pump with frictionally engaged axial valve plate | US150232 | 1980-05-15 | US4331420A | 1982-05-25 | Othel L. Jones |
| A reversible positive displacement rotary fluid pump comprising a rotor with dual sliding vanes defining pumping cavities of increasing and decreasing volume and having a single non-valved inlet for both directions of rotation, outlet flow being controlled by a valve plate rotatable to one of two positions, as determined by the direction of rotation of the pump, and a stationary porting plate. | ||||||
| 102 | Reversible gear pump with invariant flow direction | US943617 | 1978-09-19 | US4200427A | 1980-04-29 | Bernhard Binger; Anton Engstler |
| A gear pump for unidirectionally transporting a fluid such as oil has a stationary housing with an inlet port and an outlet port on opposite sides of the axis of a cylindrical chamber in which a ring with an eccentric inner periphery is rotatable through an arc of 180.degree. between two limiting positions. Freely rotatable within the inner ring periphery is an annular outer rotor with internal gear teeth entrainable by a driven inner rotor with external gear teeth, the latter numbering one less than the internal gear teeth of the outer rotor. A face of the ring has one or more shallow depressions open toward the outer rotor, each depression being spanned by a leaf spring which is anchored to the ring and defines with the outer periphery of that rotor a wedge-shaped gap diverging symmetrically toward its ends to form alternate lodgments for a rotary coupling member such as a ball or a roller. With the ring in one of its limiting positions and the rotors being driven in a direction in which the pumping spaces formed between the coacting rotor teeth move the fluid from the inlet port to the outlet port, the coupling member lies free or under light spring pressure in the downstream lodgment as seen in the direction of rotation. When the rotor drive is reversed, leakage fluid present at the contact surface between the outer rotor and the ring builds up sufficient pressure to drive the coupling member toward the narrow waist of its gap to entrain the ring into its other limiting position in which it is arrested as the coupling member moves past that waist into its opposite lodgment. | ||||||
| 103 | Reversing pump eccentric member | US887282 | 1978-03-16 | US4193747A | 1980-03-18 | Loyal V. Pittman |
| A reversing eccentric member for a gerotor pump is shown. The eccentric member comprises a ring having opposed generally planar surfaces. One surface defines an arcuate notch for limiting rotation of the member. The opposite surface defines a slightly-raised radially innermost marginal portion which is knurled to minimize the surface area that supports the member in facing engagement with a stationary plate of the pump and also define channels to prevent sticking between lubricated adjacent machined surfaces. This limits the frictional engagement between the stationary plate and the eccentric member and the adhesive tendency of the film of lubricant therebetween so the member is generally freely and easily rotated on the plate in response to a change in the direction of rotation of the pump rotor. | ||||||
| 104 | Reversible pump | US624760 | 1975-10-23 | US3960469A | 1976-06-01 | Herbert E. Lindtveit |
| This pump is driven by a shaft which may rotate in either direction. The direction of flow of fluid at the inlet and outlet ports of the pump may be maintained the same regardless of the direction of rotation. When the pump is set for one direction of rotation, it may be adapted for use with the other direction of rotation by removing a single plate, turning the plate over, and replacing it. The plate is held by bolts whose removal does not cause disassembly of any other parts. | ||||||
| 105 | Gear-type hydraulic machine | US3619093D | 1969-11-13 | US3619093A | 1971-11-09 | HARLE HERMANN; EISENMANN SIEGFRIED |
| A gear-type hydraulic machine, wherein fluid is conveyed between gear teeth of two mating gearwheels, includes an internal gear rotatably mounted in the machine and a smaller inner external gear mounted in the machine on journals and meshing with the internal gear. The pressure and the suction sides formed between the cooperating gear teeth are separated exclusively by the mating or meshing teeth. The numbers of teeth of the two gears differ sufficiently that a substantial part of the gear peripheries run out of engagement to define a crescent-shaped zone between the gears. This crescent-shaped zone communicates, through suitably dimensioned leakage passages or gaps, with the respective pressure and suction sides of the machine in order for intermediate pressure to build up in the crescent-shaped zone. This intermediate pressure operates to reduce substantially the radial thrust applied to the smaller inner gear by the pressure on the pressure side.
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| 106 | Reversible rotary pump with vane flexing and shiftable cam | US3565557D | 1969-02-03 | US3565557A | 1971-02-23 | HAAS JOHN L |
| THE DISCLOSED REVERSIBLE ROTARY PUMP EMPLOYS AN IMPELLER HAVING VANES ADAPTED TO FLEX AND UNFLEX DURING ROTATION OVER AN ARCUATE CAM WHICH IS BODILY DISPLACED BY THE FLEXING VANES BETWEEN POSITIONS CORRESPONDING TO FLOW OF PUMP FLUID THROUGHT THE PUMP.
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| 107 | Automatically reversible gear pump | US58915066 | 1966-09-12 | US3343494A | 1967-09-26 | ERIKSON ROBERT W; EINAR SWEDBERG NILS |
| 108 | Pressure balanced seal-pack for reversible pumps and motors | US48122165 | 1965-08-20 | US3294029A | 1966-12-27 | CLARK HUBERT M; DRUTCHAS GILBERT H; PHILIPP BECKER |
| 109 | Rotary fluid pressure device | US42737965 | 1965-01-22 | US3270682A | 1966-09-06 | CHARLSON LYNN L |
| 110 | Reversible rotary piston motors of the screw rotor type | US40861364 | 1964-11-03 | US3237524A | 1966-03-01 | ROBERT NILSSON HANS; BENEDICTUS SCHIBBYE LAURITZ |
| 111 | Power transmission | US19347862 | 1962-05-09 | US3204565A | 1965-09-07 | KIRKPATRICK KINGSTON V |
| 112 | Unidirectional flow rotary pump | US20914362 | 1962-07-11 | US3165066A | 1965-01-12 | PHELPS THOMAS W; SHORT JAMES A |
| 113 | Hydraulic power conversion device | US18306862 | 1962-03-28 | US3150599A | 1964-09-29 | ROGER LAUMONT |
| 114 | Reveksible gear pump | US3118387D | US3118387A | 1964-01-21 | ||
| 115 | Vaned pumps and motors | US12413061 | 1961-07-14 | US3112709A | 1963-12-03 | JULIUS YARMAK |
| 116 | Hydraulic servo system | US13763461 | 1961-09-12 | US3083535A | 1963-04-02 | KRAFFT FREDERICK G; WALTER ERNST |
| 117 | Combined motor and pump | US77378758 | 1958-11-13 | US3008419A | 1961-11-14 | VLACHOS CONSTANTINOS H |
| 118 | Rotary pumps a device for reversing the rotation of the pump without reversing its direction of suction | US63218657 | 1957-01-02 | US2893323A | 1959-07-07 | FROMM ENEMARK ARNE |
| 119 | Dual pump drive with overrunning clutches | US34401953 | 1953-03-23 | US2775204A | 1956-12-25 | BATTEN WEBSTER R; DONALD HADDEN |
| 120 | Rotary, uni-directional, variable and reversible delivery pump | US21873451 | 1951-04-02 | US2752851A | 1956-07-03 | GARNER LAWRENCE M; MCCONNOHIE EDWARD S |
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