US5425332A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plasmatron-internal combustion engine system
Assignee: Massachusetts Institute of Technology
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Filing: 1993-08-20
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Granted: 1995-06-20
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Expires: 2013-08-20
Abstract
Abstract Rotary power system. The system includes a source of hydrocarbon fuel which is supplied to a plasmatron which reforms the fuel into a hydrogen-rich gas. An internal combustion engine is connected to receive the hydrogen-rich gas from the plasmatron. The engine powers an electrical generator and the generated electricity is connected to the plasmatron. In one embodiment, the engine also receives hydrocarbon fuel along with the hydrogen rich gas. The combination of plasmatron and internal combustion engine results in lowered exhaust emissions.
Inventors
- 👤 Alexander Rabinovich
- 👤 Daniel R. Cohn
- 👤 Leslie Bromberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:31
CPC Classifications
F; F02; F02M; F02M25/00; F02M25/10; F02M25/12; F02B; F02B43/00; F02B43/10; F02B1/00; F02B1/02; F02B1/04; F02B2043/106; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12; Y02T10/30; Y10; Y10S; Y10S123/00; Y10S123/12
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
53 words
Rotary power system comprising: a source of hydrocarbon fuel; a plasmatron for receiving the hydrocarbon fuel and reforming it into a hydrogen-rich gas; an internal combustion engine adapted to receive the hydrogen-rich gas from the plasmatron; and a generator powered by the engine and connected to deliver electrical energy to power the plasmatron.
Claim 2
Dependent Claim
53 words
Rotary power system comprising: a source of hydrocarbon fuel; a plasmatron for receiving the hydrocarbon fuel and reforming it into a hydrogen-rich gas; an internal combustion engine adapted to receive the hydrogen-rich gas from the plasmatron; and a generator powered by the engine and connected to deliver electrical energy to power the plasmatron.
Claim 3
Dependent Claim
21 words
The system of claim 1 wherein the engine is connected to receive the hydrocarbon fuel in addition to the hydrogen-rich gas.
Claim 4
Dependent Claim
12 words
The system of claim 1 wherein the plasmatron is a water plasmatron.
Claim 5
Dependent Claim
27 words
The system of claim 1 further including a gas storage tank for receiving hydrogen-rich gas from the plasmatron and delivering hydrogen-rich gas to the internal combustion engine.
Claim 6
Dependent Claim
23 words
The system of claim 1 further including switching apparatus for selecting the relative proportion of hydrogen-rich gas and hydrocarbon fuel entering the engine.
Claim 7
Dependent Claim
75 words
Rotary power system comprising: a first and a second source of hydrocarbon fuel; a plasmatron for receiving hydrocarbon fuel from the first source of hydrocarbon fuel and reforming it into a hydrogen-rich gas; an internal combustion engine adapted to receive the hydrogen-rich gas from the plasmatron and to receive hydrocarbon fuel from the second source of hydrocarbon fuel; and a generator powered by the engine and connected to deliver electrical energy to power the plasmatron.
Claim 8
Dependent Claim
75 words
Rotary power system comprising: a first and a second source of hydrocarbon fuel; a plasmatron for receiving hydrocarbon fuel from the first source of hydrocarbon fuel and reforming it into a hydrogen-rich gas; an internal combustion engine adapted to receive the hydrogen-rich gas from the plasmatron and to receive hydrocarbon fuel from the second source of hydrocarbon fuel; and a generator powered by the engine and connected to deliver electrical energy to power the plasmatron.
Claim 9
Dependent Claim
74 words
Rotary power system comprising: a source of hydrocarbon fuel; a compact plasmatron for receiving the hydrocarbon fuel and reforming it into a hydrogen rich gas; an internal combustion engine adapted to receive the hydrogen rich gas from the plasmatron; a generator/motor powered by the engine and connected to deliver electrical energy to the battery; a battery connected to receive electrical energy from the generator/motor, a portion of electrical energy being supplied to the plasmatron.
Claim 10
Dependent Claim
74 words
Rotary power system comprising: a source of hydrocarbon fuel; a compact plasmatron for receiving the hydrocarbon fuel and reforming it into a hydrogen rich gas; an internal combustion engine adapted to receive the hydrogen rich gas from the plasmatron; a generator/motor powered by the engine and connected to deliver electrical energy to the battery; a battery connected to receive electrical energy from the generator/motor, a portion of electrical energy being supplied to the plasmatron.
Claim 11
Dependent Claim
24 words
Rotary power system of claim 7 wherein the generator/motor works as an electric motor receiving electrical energy from the battery to generate mechanical energy.
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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) | 1998-06-19 | 1998-12-19 | 1999-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-06-19 | 2002-12-19 | 2003-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-06-19 | 2006-12-19 | 2007-06-20 | $7700.00 | Window Closed / Lapsed |