US3826096A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid power drive system
Assignee: Individual
•
Filing: 1972-09-12
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Granted: 1974-07-30
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Expires: 1992-09-12
Abstract
Abstract A fluid power drive system supplying pressurized fluid for operating pneumatic motors or other fluid responsive devices using a fluid compressor and turbine engine to develop pressurized fluid, the exhaust fluid from the turbine providing power for such pneumatic motors. The external work required to drive the compressor and turbine engine may be supplemented using a regenerative feedback apparatus including a second compressor and turbine combination of an idle turbine, each being driven by excess pressurized fluid not required by the pneumatic motors and released by a variable pressure relief mechanism.
Inventors
- 👤 L Hrusch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:39
CPC Classifications
F; F02; F02C; F02C6/00; F02C6/04; F02C6/06
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
69 words
A fluid power drive system comprising turbine engine means for providing from an input fluid a pressurized output fluid, means providing power to said turbine engine means for supplying work to drive same, storage means coupled to said turbine engine means for storing pRessurized fluid, fluid connection means for connecting said storage means to apparatus responsive to pressurized fluid, and control means for controlling pressure in said storage means.
Claim 2
Dependent Claim
69 words
A fluid power drive system comprising turbine engine means for providing from an input fluid a pressurized output fluid, means providing power to said turbine engine means for supplying work to drive same, storage means coupled to said turbine engine means for storing pRessurized fluid, fluid connection means for connecting said storage means to apparatus responsive to pressurized fluid, and control means for controlling pressure in said storage means.
Claim 3
Dependent Claim
30 words
A fluid power drive system as set forth in claim 1 wherein said control means comprises normally closed pressure relief valve means for relieving excess pressure in said storage means.
Claim 4
Dependent Claim
119 words
A fluid power drive system as set forth in claim 2 wherein said turbine engine means comprises primary compressor means for producing from an input fluid a compressed output fluid, said primary compressor means having a fluid inlet and a fluid outlet, primary turbine means mechanically coupled to said primary compressor means for driving same, said primary turbine means having a fluid inlet and a fluid outlet, energy producing means in fluid communication between said primary compressor means fluid outlet and said primary turbine means fluid inlet for increasing the energy level of such compressed output fluid and directing same to said primary turbine means, and said storage means being in fluid communication with said primary turbine fluid outlet.
Claim 5
Dependent Claim
51 words
A fluid power drive system as set forth in claim 3 wherein said pressure relief valve means comprises variable pressure relief valve means having a variable parameter determining valve opening pressure, and further comprising means connecting said variable pressure relief valve means to said primary compressor means for adjusting such parameter.
Claim 6
Dependent Claim
38 words
A fluid power drive system as set forth in claim 3 wherein said pressure relief valve means comprises variable pressure relief valve means, and further comprising power control means for controlling work supplied by said means for supplying.
Claim 7
Dependent Claim
101 words
A fluid power drive system as set forth in claim 3 further comprising regenerative means coupled to said control means for supplying supplemental work to drive said turbine means having a fluid inlet in fluid communication with said pressure relief valve means and a fluid outlet, secondary compressor means mechanically coupled to and driven by said secondary turbine means for producing from an input fluid a compressed output fluid, said secondary compressor means having a fluid inlet and a fluid outlet, and means connecting said fluid outlet of said secondary compressor means to said fluid inlet of said primary compressor means.
Claim 8
Dependent Claim
71 words
A fluid power drive system as set forth in claim 3 further comprising regenerative means coupled to said control means for supplying supplemental work to drive said turbine engine means, said regenerative means including secondary turbine means having a fluid inlet in fluid communication with said pressure relief valve means, a fluid outlet, and mechanical output means coupled to said primary compressor means and said primary turbine means for driving same.
Claim 9
Dependent Claim
39 words
A fluid power drive system as set forth in claim 7 further comprising clutch means for mechanically connecting said secondary turbine means to said primary compressor means and said primary turbine means upon operation of said secondary turbine means.
Claim 10
Dependent Claim
39 words
A fluid power drive system as set forth in claim 7 further comprising valve means coupled to said secondary turbine means for permitting fluid flow into said secondary turbine means when said secondary turbine means is not in operation.
Claim 11
Dependent Claim
52 words
A fluid power drive system as set forth in claim 1 wherein said turbine engine means comprises gas turbine engine means, and wherein said means providing power, storage means, and control means cooperate with said gas turbine engine means normally to run at constant highly efficient speed regardless of required output speed.
Claim 12
Dependent Claim
78 words
A fluid power drive system comprising engine means for providing pressurized fluid, means providing power to said engine means for supplying work to drive said engine means, storage means coupled to said engine means for storing pressurized fluid, fluid connection means for connecting said storage means to apparatus responsive to pressurized fluid, control means for controlling pressure in said storage means, and regenerative means coupled to said control means for supplying supplymental work to drive said engine means.
Claim 13
Dependent Claim
78 words
A fluid power drive system comprising engine means for providing pressurized fluid, means providing power to said engine means for supplying work to drive said engine means, storage means coupled to said engine means for storing pressurized fluid, fluid connection means for connecting said storage means to apparatus responsive to pressurized fluid, control means for controlling pressure in said storage means, and regenerative means coupled to said control means for supplying supplymental work to drive said engine means.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-07-29 | 1978-01-28 | 1978-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-29 | 1982-01-28 | 1982-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-29 | 1986-01-28 | 1986-07-30 | $7700.00 | Window Closed / Lapsed |