Hydrostatic bearing system |
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| 申请号 | US3598455D | 申请日 | 1969-06-27 | 公开(公告)号 | US3598455A | 公开(公告)日 | 1971-08-10 |
| 申请人 | SCHMITZ ALBERT A; | 发明人 | SCHMITZ ALBERT A; | ||||
| 摘要 | A hydrostatic balancing and lubrication system for birotational pumps and motors which utilizes check valves in the passages supplying hydrostatic bearing ares with metered amounts of pressurized fluid. The check valves prevent the backflow of fluid from the bearing areas to that one of alternate sources of fluid having the lower pressure. | ||||||
| 权利要求 | 1. A hydrostatic system for a fluid device, comprising: a. a fluid pressure means, b. a bearing surface, c. depression means formed in said bearing surface, d. fluid passage means between said depression means and said fluid pressure means, and e. meter means and check valve means disposed in said fluid passages means between said fluid pressure means and said depression means for permitting metered flow of fluid under pressure from said fluid pressure means to said depression means while preventing the flow of fluids from said depression means to said fluid pressure means. 2. A hydrostatic system for a fluid device, comprising: a. a fluid pressure means, b. a bearing surface, c. depression means formed in said bearing surface, d. fixed volume fluid passage means between said depression means and said fluid pressure means, and e. meter means and check valve means disposed in said fluid passage means between said fluid pressure means and said depression means for permitting metered flow of fluid under pressure from said fluid pressure means to said depression means while preventing the flow of fluid from said depression means to said fluid pressure means. 3. A hydrostatic balancing and lubrication system for a hydraulic pump or motor or the like, comprising: a. a stator and a rotor, b. opposed bearing surface means between said stator and rotor on opposite sides thereof, c. fluid pressure means, d. depression means formed in said bearing surface means on at least one of said stator and rotor, e. fluid passage means connecting said depression means with said fluid pressure means, and f. meter means and check valve means disposed in said passage means for permitting the metered flow of fluid under pressure from said fluid pressure meaNs to said depression means while preventing the flow of fluid from said depression means to said fluid pressure means. 4. The hydrostatic balancing and lubrication system of claim 3 further characterized in that: a. said meter means and valve means are unitary and comprise a valve body having a valve bore extending therethrough, b. a first valve seat formed in said body at one end of said bore and a second valve seat formed in said body at the opposite end of said bore, c. a valve member movable in said bore and having a first valve head adapted to seat against said first valve seat in sealing relationship to stop fluid flow from said depression means and a second valve head adapted to seat against said second valve seat in such relationship that metered flow of fluid under pressure to said depression means is permitted. 5. The hydrostatic balancing and lubricating system of claim 4 further characterized in that: a. said first valve seat and said first valve head have complementary frustoconical sealing surfaces. 6. The hydrostatic balancing and lubrication system of claim 5 further characterized in that: a. at least one of said second valve seat and said second valve head have groove means formed therein to permit said metered flow. 7. A hydrostatic balancing and lubrication system for a reversible flow, vane-type hydraulic pump or motor, comprising: a. a stator and a rotor, b. opposed bearing surfaces means between said stator and rotor on opposite sides thereof, c. fluid pressure means including an inlet and an outlet means, d. depression means formed in said bearing surface means on at least one of said stator and rotor, e. first fluid passage means connecting said depression means with the fluid pressure inlet means and second fluid passage means connecting said depression means with the fluid pressure outlet means, and f. meter means and check valve means disposed in said passage means for permitting metered flow of fluid under pressure from said fluid pressure inlet means to said depression means while preventing the flow of fluid under pressure from said depression means to said fluid pressure outlet means. 8. The hydrostatic balancing and lubrication system of claim 7 further characterized in that: a. said meter means and said valve means are unitary and comprise a valve body having a valve bore extending therethrough, b. a first valve seat formed in said body at one end of said bore and a second valve seat formed in said body at the opposite end of the said bore, c. a valve member movable in said bore and having a first valve head adapted to seat against said first valve seat in sealing relationship to stop fluid flow from said depression means and a second valve head adapted to seat against said second valve seat in such relationship that metered flow of fluid under pressure to said depression means is permitted. 9. The hydrostatic balancing and lubrication system o claim 9 further characterized in that: a. said first valve seat and said first valve head have complementary, frustoconical sealing surfaces. 10. The hydrostatic balancing and lubrication system of claim 9 further characterized in that: a. at least one of said second valve seat and said second valve head have groove means formed therein to permit said metered flow. 11. A hydrostatic system for a fluid device, comprising: a. fluid pressure means, b. a bearing surface, c. depression means formed in said bearing surfaces, d. direct fluid passage means between said depression means and said fluid pressure means, and e. meter means and check valve means disposed in said fluid passage means between said fluid pressure means and said depression means for permitting metered flow of fluid under pressure from said fluid pressure means to said depression means while preventing the flow of fluid from said depression means to said fluid pressure means. 12. A hydrOstatic balancing and lubrication system for a hydraulic pump or motor or the like, comprising: a. a stator and a rotor, b. opposed bearing surface means between said stator and rotor on opposite sides thereof, c. alternate fluid pressure means, d. a plurality of depressions in said bearing surface means, e. separate fluid passage means connecting each of said depression means with each of said alternate fluid pressure means, and f. meter means and check valve means disposed in each of said fluid passage means for permitting metered flow of fluid under pressure from one of said fluid pressure means to said depression means while preventing the flow of fluid from said depression means to other said alternate fluid pressure means. |
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