US5168703A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuously active pressure accumulator power transfer system
Assignee: Individual
•
Filing: 1990-01-09
•
Granted: 1992-12-08
•
Expires: 2010-01-09
Abstract
Abstract A continuously active pressure accumulator power transfer system for a vehicle or a like comprises an engine, a pump driven by the engine, a main pressure accumulator maintained at a substantially constant fluid pressure and fluid volume by the pump during operation, a fluid motor for propelling the vehicle which is supplied with driving fluid pressure from the pressure accumulator and auxiliary units for operating the vehicle. The auxiliary units are also operated by fluid pressure from the pressure accumulator. The fluid motor(s) and the auxiliary units are operated directly by fluid pressure from the accumulator without any direct connection with the engine.
Inventors
- 👤 Jaromir Tobias
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:22
CPC Classifications
B; B60; B60K; B60K5/00; B60K5/12; B60K17/00; B60K17/04; B60K17/10; B60K25/00; B60K6/00; B60K6/08; B60K6/12; B64; B64C; B64C27/00; B64C27/001; F; F16; F16F; F16F15/00; F16F15/02; F16F15/023; F16F15/0232; B64C2027/002; B64C2027/004; Y; Y02; Y02T; Y02T10/00; Y02T10/60; Y02T10/62
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
357 words
A continuously active pressure accumulator power transfer system for a vehicle or the like comprising: engine means, hydraulic fluid pump means driven by the engine means, a main pressure accumulator disposed downstream of the pump means and having respective accumulator inlet means for accepting pressurized hydraulic fluid from the pump means and accumulator outlet means for discharging hydraulic fluid under pressure from the accumulator, means for maintaining the hydraulic fluid in the accumulator at a substantially constant fluid pressure and fluid volume during operation of the system, said accumulator including two chambers separated by a flexible diaphragm, pressurized hydraulic fluid from the pump means being supplied to one of the two chambers and the other chamber including a pressurized gas for acting against said pressurized hydraulic fluid in said one chamber via said flexible diaphragm for continuously acting as a vibration absorber against vibration transmission through the accumulator during operation of the system, fluid motor means for propelling the vehicle, said fluid motor means being disposed downstream of the accumulator and supplied with driving fluid pressure from the accumulator outlet means, and auxiliary means for operating said vehicle, said auxiliary means being disposed downstream of the accumulator and operated by fluid pressure from the accumulator outlet means, whereby said pressure accumulator is interposed in series between said fluid pump means and the fluid motor means and between said fluid pump means and said auxiliary means, and wherein the fluid motor means and the auxiliary means are operated directly by fluid pressure from the accumulator without any direct connection with the engine means, and wherein said means for maintaining includes accumulator inlet valve means interposed between the pump means and the accumulator for controlling the flow of pressurized hydraulic fluid from the pump means to the accumulator and from the pump means bypassing the accumulator to a reservoir and microprocessor control means for controlling the accumulator inlet valve means as a function of the hydraulic fluid pressure in the accumulator for maintaining the accumulator at the substantially constant fluid pressure and fluid volume during both operation and nonoperation of said fluid motor means while the system is operating.
Claim 2
Dependent Claim
357 words
A continuously active pressure accumulator power transfer system for a vehicle or the like comprising: engine means, hydraulic fluid pump means driven by the engine means, a main pressure accumulator disposed downstream of the pump means and having respective accumulator inlet means for accepting pressurized hydraulic fluid from the pump means and accumulator outlet means for discharging hydraulic fluid under pressure from the accumulator, means for maintaining the hydraulic fluid in the accumulator at a substantially constant fluid pressure and fluid volume during operation of the system, said accumulator including two chambers separated by a flexible diaphragm, pressurized hydraulic fluid from the pump means being supplied to one of the two chambers and the other chamber including a pressurized gas for acting against said pressurized hydraulic fluid in said one chamber via said flexible diaphragm for continuously acting as a vibration absorber against vibration transmission through the accumulator during operation of the system, fluid motor means for propelling the vehicle, said fluid motor means being disposed downstream of the accumulator and supplied with driving fluid pressure from the accumulator outlet means, and auxiliary means for operating said vehicle, said auxiliary means being disposed downstream of the accumulator and operated by fluid pressure from the accumulator outlet means, whereby said pressure accumulator is interposed in series between said fluid pump means and the fluid motor means and between said fluid pump means and said auxiliary means, and wherein the fluid motor means and the auxiliary means are operated directly by fluid pressure from the accumulator without any direct connection with the engine means, and wherein said means for maintaining includes accumulator inlet valve means interposed between the pump means and the accumulator for controlling the flow of pressurized hydraulic fluid from the pump means to the accumulator and from the pump means bypassing the accumulator to a reservoir and microprocessor control means for controlling the accumulator inlet valve means as a function of the hydraulic fluid pressure in the accumulator for maintaining the accumulator at the substantially constant fluid pressure and fluid volume during both operation and nonoperation of said fluid motor means while the system is operating.
Claim 3
Dependent Claim
26 words
A continuously active pressure accumulator power transfer system according to claim 1, wherein the auxiliary means includes an engine cooling water pump for cooling the engine.
Claim 4
Dependent Claim
28 words
A continuously active pressure accumulator power transfer system according to claim 1, wherein the auxiliary means includes an engine oil pump for providing lubricating oil to the engine.
Claim 5
Dependent Claim
26 words
A continuously active pressure accumulator power transfer system according to claim 1, wherein the auxiliary means includes an electrical generator supplying electric power to the vehicle.
Claim 6
Dependent Claim
24 words
A continuously active pressure accumulator power transfer system according to claim 1, wherein the auxiliary means includes a vehicle air conditioning compressor drive motor.
Claim 7
Dependent Claim
25 words
A continuously active pressure accumulator power transfer system according to claim 1, wherein the auxiliary means includes a pressurizing system for a vehicle ABS system.
Claim 8
Dependent Claim
23 words
A continuously active pressure accumulator power transfer system according to claim 1, wherein the auxiliary means includes a windshield wiper drive motor means.
Claim 9
Dependent Claim
22 words
A continuously active pressure accumulator power transfer system according to claim 1, wherein the auxiliary means includes a vibration isolation mount system.
Claim 10
Dependent Claim
62 words
A continuously active pressure accumulator power transfer system according to claim 1, wherein accumulator fluid control pressure supply means are interposed between the main pressure accumulator and each of the respective auxiliary means, and wherein said control unit includes means for controlling the respective accumulator pressure supply control means as a function of detected pressure supply needs at the respective auxiliary means.
Claim 11
Dependent Claim
46 words
A continuously active pressure accumulator power transfer system according to claim 9, wherein the accumulator fluid pressure control supply means includes at least one capillary supply tube which substantially reduces the fluid pressure from the main accumulator pressure to at least one of the auxiliary means.
Claim 12
Dependent Claim
362 words
A hydrostatic power transfer system for a vehicle or the like comprising: a source of motive power, a pressure accumulator, fluid pump means driven by motive power from said source of motive power for supplying pressurized hydraulic fluid to said pressure accumulator, said pressure accumulator being disposed downstream of the pump means and having respective accumulator inlet means for accepting pressurized hydraulic fluid from the fluid pump means and accumulator outlet means for discharging hydraulic fluid under pressure from the accumulator, said accumulator including first and second chambers and flexible pressure transmissive means separating said first and second chambers, the pressurized hydraulic fluid from said fluid pump means being supplied to said first chamber via said accumulator inlet means and said second chamber including a pressurized gas as spring cushion means for acting against said pressurizing hydraulic fluid in said first chamber via said flexible pressure transmissive means for continuously acting as a vibration absorber against vibration transmission through the accumulator during operation of the system, fluid motor means downstream of the pressure accumulator and driven by hydraulic fluid from said first chamber of the accumulator via the accumulator outlet means for propelling the vehicle, auxiliary means downstream of the pressure accumulator and driven by fluid from said first chamber of the accumulator via the accumulator outlet means for operating said vehicle, whereby said pressure accumulator is interposed in series between said fluid pump means and the fluid motor means and between said fluid pump means and said auxiliary means so that it substantially eliminates transmission of vibrations from the fluid pump means to the fluid motor means and the auxiliary means, and accumulator inlet valve means interposed between the pump means and the accumulator for controlling the flow of pressurized hydraulic fluid from the pump means to the accumulator and from the pump means bypassing the accumulator to a reservoir, and microprocessor control means for controlling the accumulator inlet valve means as a function of the hydraulic fluid pressure in the accumulator for maintaining the hydraulic fluid pressure in the accumulator at a substantially constant pressure during both operation and nonoperation of said fluid motor means while the system is operating.
Claim 13
Dependent Claim
362 words
A hydrostatic power transfer system for a vehicle or the like comprising: a source of motive power, a pressure accumulator, fluid pump means driven by motive power from said source of motive power for supplying pressurized hydraulic fluid to said pressure accumulator, said pressure accumulator being disposed downstream of the pump means and having respective accumulator inlet means for accepting pressurized hydraulic fluid from the fluid pump means and accumulator outlet means for discharging hydraulic fluid under pressure from the accumulator, said accumulator including first and second chambers and flexible pressure transmissive means separating said first and second chambers, the pressurized hydraulic fluid from said fluid pump means being supplied to said first chamber via said accumulator inlet means and said second chamber including a pressurized gas as spring cushion means for acting against said pressurizing hydraulic fluid in said first chamber via said flexible pressure transmissive means for continuously acting as a vibration absorber against vibration transmission through the accumulator during operation of the system, fluid motor means downstream of the pressure accumulator and driven by hydraulic fluid from said first chamber of the accumulator via the accumulator outlet means for propelling the vehicle, auxiliary means downstream of the pressure accumulator and driven by fluid from said first chamber of the accumulator via the accumulator outlet means for operating said vehicle, whereby said pressure accumulator is interposed in series between said fluid pump means and the fluid motor means and between said fluid pump means and said auxiliary means so that it substantially eliminates transmission of vibrations from the fluid pump means to the fluid motor means and the auxiliary means, and accumulator inlet valve means interposed between the pump means and the accumulator for controlling the flow of pressurized hydraulic fluid from the pump means to the accumulator and from the pump means bypassing the accumulator to a reservoir, and microprocessor control means for controlling the accumulator inlet valve means as a function of the hydraulic fluid pressure in the accumulator for maintaining the hydraulic fluid pressure in the accumulator at a substantially constant pressure during both operation and nonoperation of said fluid motor means while the system is operating.
Claim 14
Dependent Claim
21 words
A power transfer system according to claim 11, wherein said auxiliary means includes means for supplying electric power to the vehicle.
Claim 15
Dependent Claim
22 words
A power transfer system according to claim 12, wherein said means for supplying electric power to the vehicle is an electric generator.
Claim 16
Dependent Claim
22 words
A power transfer system according to claim 11, wherein said auxiliary means includes an engine cooling water pump for cooling the engine.
Claim 17
Dependent Claim
24 words
A power transfer system according to claim 11, wherein said auxiliary means includes an engine oil pump for providing lubricating oil to the engine.
Claim 18
Dependent Claim
20 words
A power transfer system according to claim 11, wherein said auxiliary means includes a vehicle air conditioning compressor drive motor.
Claim 19
Dependent Claim
22 words
A power transfer system according to claim 11, wherein said auxiliary means includes a pressurizing system for a vehicle ABS brake system.
Claim 20
Dependent Claim
19 words
A power transfer system according to claim 11, wherein said auxiliary means includes a windshield wiper drive motor means.
Claim 21
Dependent Claim
18 words
A power transfer system according to claim 11, wherein said auxiliary means includes a vibration isolation mount system.
Claim 22
Dependent Claim
61 words
A power transfer system according to claim 11, wherein accumulator fluid control pressure supply means are interposed between the pressure accumulator and each of a plurality of respective auxiliary means, and wherein said microprocessor control means includes means for controlling the respective accumulator fluid control pressure supply means as a function of detected pressure supply needs at the respective auxiliary means.
Claim 23
Dependent Claim
40 words
A power transfer system according to claim 20, wherein the accumulator fluid control pressure supply means includes at least one capillary supply tube which substantially reduces the fluid pressure from the accumulator to at least one of the auxiliary means.
References Cited (Backward Citations)
US900342A
Cited
US1216761A
Cited
US1987698A
Cited
US1991579A
Cited
US2100404A
Cited
US2355357A
Cited
US2240011A
Cited
US2239612A
Cited
US2326821A
Cited
US2396653A
Cited
US2363977A
Cited
US2727470A
Cited
US2704131A
Cited
US2850869A
Cited
US2850878A
Cited
US2846850A
Cited
US3023579A
Cited
US3169551A
Cited
US3157202A
Cited
US3283165A
Cited
US3281101A
Cited
US3343560A
Cited
US3459395A
Cited
US3513929A
Cited
US3587233A
Cited
US3478513A
Cited
US3690607A
Cited
US3669150A
Cited
US3828555A
Cited
US3744517A
Cited
US3784146A
Cited
US4057073A
Cited
US3886848A
Cited
US3918847A
Cited
US3892283A
Cited
US3891045A
Cited
US3957128A
Cited
US3984978A
Cited
US3962872A
Cited
US3964260A
Cited
US4064694A
Cited
US4011722A
Cited
US4215545A
Cited
JPS5510171A
Cited
US4227587A
Cited
US4350220A
Cited
US4348863A
Cited
US4240515A
Cited
US4407330A
Cited
US4246978A
Cited
US4236595A
Cited
US4553744A
Cited
US4627239A
Cited
US4370714A
Cited
US4514151A
Cited
US4503928A
Cited
US4527954A
Cited
US4557678A
Cited
US4813234A
Cited
US4769989A
Cited
US4762306A
Cited
US4752195A
Cited
US4735296A
Cited
US4741410A
Cited
DE3543073A1
Cited
US4788949A
Cited
US4801245A
Cited
US4745745A
Cited
US4741247A
Cited
US4903792A
Cited
US4712376A
Cited
US4856264A
Cited
US4872486A
Cited
US4838316A
Cited
US4754603A
Cited
US4858898A
Cited
US4888949A
Cited
US5062498A
Cited
US5036879A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-12-08 | 1996-06-08 | 1996-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-12-08 | 2000-06-08 | 2000-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-12-08 | 2004-06-08 | 2004-12-08 | $7700.00 | Window Closed / Lapsed |