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Patent US4494488A successfully refreshed from Google Patents.
US4494488A
Expired / Lapsed
US
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Fuel charging system for high performance vehicles
Assignee: BG 300 Inc
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Filing: 1984-05-23
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Granted: 1985-01-22
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Expires: 2004-05-23
Abstract
Abstract A fuel charging system injects liquid nitrous oxide into the engine of a high performance vehicle to provide an instant burst of power to the vehicle. A supply cylinder of pressurized liquid nitrous oxide is connected by an outlet conduit to the vehicle engine. A cylinder of nitrogen gas under a considerably higher pressure than that of the nitrous oxide is connected to the nitrous oxide cylinder by an inlet conduit. The nitrogen gas inlet conduit and nitrous oxide outlet conduit are connected to the nitrous oxide cylinder by an adapter valve. The nitrogen gas passes through a pressure regulator located in the inlet conduit and maintains a high pressure blanket of gas above the nitrous oxide in the cylinder to force the nitrous oxide from the cylinder and into the engine at a constant and sustained rate eliminating the heretofore rapid drop in the supply pressure of the nitrous oxide as the supply of nitrous oxide is dissipated from the supply cylinder.
Inventors
- 👤 William M. Wheatley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:28
CPC Classifications
F; F02; F02M; F02M25/00
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
156 words
A fuel charging system for the engine of a high performance vehicle including: (a) a first container for holding a supply of pressurized liquid nitrous oxide; (b) a second container for holding a supply of pressurized nitrogen gas, said nitrogen gas being under a greater pressure than the nitrous oxide; (c) first conduit means for delivering nitrous oxide from the first container to the vehicle engine; (d) second conduit means for delivering pressurized nitrogen gas from the second container into the first container to form a pressurized blanket of nitrogen gas against the liquid nitrous oxide for discharging the nitrous oxide from said first container and into the vehicle engine through the first conduit means; and (e) valve means for directing the flow of pressurized nitrogen gas into the first container to form the pressurized blanket of nitrogen gas and for permitting the flow of nitrous oxide from said container and into the first conduit means.
Claim 2
Dependent Claim
156 words
A fuel charging system for the engine of a high performance vehicle including: (a) a first container for holding a supply of pressurized liquid nitrous oxide; (b) a second container for holding a supply of pressurized nitrogen gas, said nitrogen gas being under a greater pressure than the nitrous oxide; (c) first conduit means for delivering nitrous oxide from the first container to the vehicle engine; (d) second conduit means for delivering pressurized nitrogen gas from the second container into the first container to form a pressurized blanket of nitrogen gas against the liquid nitrous oxide for discharging the nitrous oxide from said first container and into the vehicle engine through the first conduit means; and (e) valve means for directing the flow of pressurized nitrogen gas into the first container to form the pressurized blanket of nitrogen gas and for permitting the flow of nitrous oxide from said container and into the first conduit means.
Claim 3
Dependent Claim
22 words
The fuel charging system defined in claim 1 in which the pressurized nitrous oxide is under a pressure of approximately 900 psi.
Claim 4
Dependent Claim
26 words
The fuel charging system defined in claim 1 in which the pressurized nitrogen gas is at a pressure of approximately 3000 psi in the second container.
Claim 5
Dependent Claim
35 words
The fuel charging system defined in claim 1 in which a pressure regulator valve is in the second conduit means to maintain a predetermined nitrogen gas pressure on the nitrous oxide in the first container.
Claim 6
Dependent Claim
133 words
The fuel charging system defined in claim 1 in which the valve means includes an adapter having a body formed with a main axial bore and a secondary transversely extending nitrogen gas inlet bore communicating with said main bore; in which a nitrous oxide pickup tube extends through the main axial bore and terminates adjacent the bottom of the first container, said pickup tube being sufficiently smaller in diameter than the axial bore to form an annular space within the main axial bore about the tube for passage of the nitrogen gas from the nitrogen gas inlet bore into the first container for forming the high pressure blanket of nitrogen gas above the nitrous oxide to force said nitrous oxide through the pickup tube and first conduit means and into the vehicle engine.
Claim 7
Dependent Claim
79 words
The fuel charging system defined in claim 5 in which the first container includes a top opening; in which the adapter body is secured in the container top opening; in which the valve means further includes a manually actuated valve mounted on the adapter; and in which the nitrous oxide pickup tube and the first conduit are connected to the adapter with said manual valve controlling the flow of nitrous oxide from the pickup tube into the first conduit.
Claim 8
Dependent Claim
58 words
The fuel charging system defined in claim 6 in which a second transverse bore is formed in the adapter body and communicates with the main bore; and in which a pressure relief valve is mounted in said second transverse bore and has a release setting higher than the pressure of the nitrogen gas exerted on the nitrous oxide.
Claim 9
Dependent Claim
19 words
The fuel charging system defined in claim 7 in which the relief valve is set for approximately 950 psi.
Claim 10
Dependent Claim
50 words
The fuel charging system defined in claim 7 in which the adapter body has a generally cylindrical configuration with an externally threaded end for securing the adapter body in the top opening of the first container, and an opposite internally threaded end for mounting of the manual control valve therein.
Claim 11
Dependent Claim
42 words
The fuel charging system defined in claim 9 in which the main axial bore has a first cylindrical section which communicates with the transverse secondary bore, and has a smaller diameter second cylindrical section through which the nitrous oxide pickup tube extends.
Claim 12
Dependent Claim
27 words
The fuel charging system defined in claim 4 in which the pressure regulator valve maintains the nitrogen gas pressure at approximately 900 psi in the first container.
Claim 13
Dependent Claim
33 words
The fuel charging system defined in claim 4 in which a manual control valve is mounted on the second container for manually controlling the flow of nitrogen gas into the second conduit means.
Claim 14
Dependent Claim
22 words
The fuel charging system defined in claim 1 in which a remotely controlled solenoid valve is mounted in the first conduit means.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-01-22 | 1988-07-23 | 1989-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-01-22 | 1992-07-23 | 1993-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-01-22 | 1996-07-23 | 1997-01-22 | $7700.00 | Window Closed / Lapsed |