US4610141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compound engine with plural stage intercooled exhaust pump
Assignee: INTERCOOL DEVELOPMENT Ltd A CORP OF NEW YORK
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Filing: 1984-09-21
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Granted: 1986-09-09
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Expires: 2004-09-21
Abstract
Abstract A compound internal combustion engine includes a piston type internal combustion engine drive coupled with a gas turbine, the piston engine exhaust gases driving the turbine whose exhaust preheats the piston engine air intake and then enters the suction input of a multistage turbocompressor driven by the gas turbine and having interstage cooling the output of the compressor discharging to exhaust.
Inventors
- 👤 Lin-Shu Wang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:25
CPC Classifications
F; F02; F02G; F02G3/00; F02G3/02; F02B; F02B41/00; F02B41/02; F02B41/10; F02B1/00; F02B1/02; F02B1/04; F02G2250/00; F02G2250/03; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
93 words
A compound internal combustion engine comprising a positive displacement internal combustion engine having an inlet and an exhaust gas outlet, a gas turbine drive coupled with said positive displacement engine and having an inlet communicating with said positive displacement engine outlet and a gas outlet, and suction means having a suction inlet connected to said turbine outlet, said suction means comprising a multi-stage turbo-compressor driven by said turbine and having a gas inlet communicating with said turbine outlet and an outlet exhausting into the ambient atmosphere, said multi-stage turbo-compressor including interstage cooling means.
Claim 2
Dependent Claim
93 words
A compound internal combustion engine comprising a positive displacement internal combustion engine having an inlet and an exhaust gas outlet, a gas turbine drive coupled with said positive displacement engine and having an inlet communicating with said positive displacement engine outlet and a gas outlet, and suction means having a suction inlet connected to said turbine outlet, said suction means comprising a multi-stage turbo-compressor driven by said turbine and having a gas inlet communicating with said turbine outlet and an outlet exhausting into the ambient atmosphere, said multi-stage turbo-compressor including interstage cooling means.
Claim 3
Dependent Claim
18 words
The compound engine of claim 1 wherein said suction means and said turbine having connected coaxial power shafts.
Claim 4
Dependent Claim
38 words
The compound engine of claim 1 wherein said positive displacement engine includes a power shaft and said turbine includes a power shaft and comprises a speed reduction transmission coupling said turbine shaft to said positive displacement engine shaft.
Claim 5
Dependent Claim
44 words
The compound engine of claim 1 comprising a preheater including a first conduit between said positive displacement engine input and the ambient atmosphere and a second conduit between said turbine outlet and said suction inlet and in heat transfer relationship with said first conduit.
Claim 6
Dependent Claim
16 words
The compound engine of claim 1 wherein said positive displacement engine comprises a piston type engine.
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) | 1989-09-08 | 1990-03-10 | 1990-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-09-08 | 1994-03-10 | 1994-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-09-08 | 1998-03-10 | 1998-09-09 | $7700.00 | Window Closed / Lapsed |