US4552106A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal combustion engine
Assignee: Individual
•
Filing: 1982-12-03
•
Granted: 1985-11-12
•
Expires: 2002-12-03
Abstract
Abstract A modified two-stroke or four-stroke internal combustion engine comprises means and a method for increasing the power output of an internal combustion engine by providing a non-combustible fluid to the engine. The engine transfers thermal energy of combustion to the non-combustible fluid, thereby causing expansion of the fluid, and includes means for converting expansion of the fluid to mechanical power.
Inventors
- 👤 Lewis C. Spence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:14
CPC Classifications
F; F02; F02B; F02B75/00; F02B75/02; F02B41/00; F02B41/02; F02B41/04; F02B69/00; F02B69/06; F02B2075/022; F02B2075/025; F02B2075/027; F02B47/00; F02B47/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
An internal combustion engine operating on a two-stroke cycle or a four-stroke cycly having a power stroke, comprising: means for providing a combustible fuel to said engine at the start of the power stroke; first means for igniting said fuel during the power stroke to produce mechanical power; means for providing a non-combustible fluid to said engine during the power stroke after said first means has ignited said fuel and after said ignited fuel has substantially reached the point of flame-out in order to transfer thermal energy from said ignited fuel to said non-combustible fluid, thereby causing expansion of said fluid during the power stroke; and means for converting expansion of said fluid to mechanical power during the power stroke, wherein said non-combustible fluid comprises a fluid having good temperature expansion characteristics and which condenses at a substantially faster rate than burned combustible fuel exhausted from the engine, and wherein said non-combustible liquid comprises a halogen.
Claim 2
Dependent Claim
156 words
An internal combustion engine operating on a two-stroke cycle or a four-stroke cycly having a power stroke, comprising: means for providing a combustible fuel to said engine at the start of the power stroke; first means for igniting said fuel during the power stroke to produce mechanical power; means for providing a non-combustible fluid to said engine during the power stroke after said first means has ignited said fuel and after said ignited fuel has substantially reached the point of flame-out in order to transfer thermal energy from said ignited fuel to said non-combustible fluid, thereby causing expansion of said fluid during the power stroke; and means for converting expansion of said fluid to mechanical power during the power stroke, wherein said non-combustible fluid comprises a fluid having good temperature expansion characteristics and which condenses at a substantially faster rate than burned combustible fuel exhausted from the engine, and wherein said non-combustible liquid comprises a halogen.
References Cited (Backward Citations)
US864877A
Cited
US885820A
Cited
US1068414A
Cited
US1791523A
Cited
US1848380A
Cited
US2101554A
Cited
US2671311A
Cited
US2862481A
Cited
US3844262A
Cited
US3842808A
Cited
US3896775A
Cited
US3964263A
Cited
US4143518A
Cited
US4279223A
Cited
US4402182A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-11-11 | 1989-05-13 | 1989-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-11-11 | 1993-05-13 | 1993-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-11-11 | 1997-05-13 | 1997-11-12 | $7700.00 | Window Closed / Lapsed |