US4473754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Waste heat power generation system
Assignee: Williams International Corp
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Filing: 1982-07-26
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Granted: 1984-09-25
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Expires: 2002-07-26
Abstract
Abstract The invention relates to a power generation system comprising a Brayton cycle turbine for directly driving a first air compressor. A motor/generator is adapted to drive said turbine in the power generating condition and be driven by said turbine in the start condition. A second air compressor is also directly driven by said turbine and is coupled to said turbine, motor/generator, and said first air compressor by a gear system. A heat exchanger between said second air compressor and said turbine provides heat energy to drive the system.
Inventors
- 👤 John R. Joy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:59
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/36; F02C1/00; F02C1/04; F02C3/00; F02C3/04; F02C3/107; F02C7/12; F02C7/14; F02C7/141; F02C7/143
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
A Brayton Cycle power generation system comprising: a first shaft, a turbine on said first shaft, a first air compressor on said first shaft so as to be directly driven by said turbine, a first gear on said first shaft intermediate said turbine and compressor, a motor generator shaft, a motor/generator on said motor generator shaft adapted to drive said turbine in one condition and be driven by said turbine in another condition, a bull gear on said motor generator shaft meshed with said first gear, a second shaft, a second air compressor on said second shaft having a second gear meshed with said bull gear so as to be driven by said turbine, and a common sealable gearbox enclosing each of said gears, said air compressors, motor generator and turbine being mounted externally of said gearbox whereby a pressure differential can be maintained between internal pressure in said gearbox and ambient pressure.
Claim 2
Dependent Claim
153 words
A Brayton Cycle power generation system comprising: a first shaft, a turbine on said first shaft, a first air compressor on said first shaft so as to be directly driven by said turbine, a first gear on said first shaft intermediate said turbine and compressor, a motor generator shaft, a motor/generator on said motor generator shaft adapted to drive said turbine in one condition and be driven by said turbine in another condition, a bull gear on said motor generator shaft meshed with said first gear, a second shaft, a second air compressor on said second shaft having a second gear meshed with said bull gear so as to be driven by said turbine, and a common sealable gearbox enclosing each of said gears, said air compressors, motor generator and turbine being mounted externally of said gearbox whereby a pressure differential can be maintained between internal pressure in said gearbox and ambient pressure.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-09-25 | 1988-03-26 | 1988-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-09-25 | 1992-03-26 | 1992-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-09-25 | 1996-03-26 | 1996-09-25 | $7700.00 | Window Closed / Lapsed |