Nitrous oxide fuel injection safety system

Details Nitrous oxide fuel injection safety system Nitrous oxide fuel injection safety system

1986-08-13

1987-08-04

Cross, E. Rollins

Internal-combustion engines

Miscellaneous

Fuels, lubricants and additives

123575, 123445, F02B 7512

Patent

active

046838430

ABSTRACT:
A fuel charging system which injects nitrous oxide into the engine of a high performance vehicle to provide an instant burst of power to the vehicle. A nitrous oxide supply line feeds nitrous oxide under pressure from a supply container thereof into the vehicle engine through a spray bar. A normally closed solenoid valve controls the flow of nitrous oxide into the vehicle engine through the supply line. The supply line also is connected to a vent tube having a normally open solenoid valve controlling the flow of nitrous oxide thereto. The vent valve communicates with a one-way low pressure actuated check valve and vents any nitrous oxide leaking past the closed solenoid control valve into the atmosphere to prevent the harmful buildup of nitrous oxide in the engine. A pair of pressure actuated electrical switches are connected to and actuated by the pressure of the oil and fuel sources of the vehicle to prevent the actuation of the nitrous oxide control valve if a sufficient supply of fuel is not available to mix with the nitrous oxide and if the engine RPM is not sufficient for receiving the additional burst of power. The check valve reduces momentary back pressure in the nitrous oxide flow line which heretofore occurred at the time when increased power is needed most in a race. Also the vented leaking nitrous oxide is visable to the vehicle operator enabling appropriate action to be taken to prevent damage to the vehicle.

REFERENCES:
patent: 4494488 (1985-01-01), Wheatley
patent: 4572140 (1986-02-01), Wheatley
Superpower "Nitrous Oxide Injection" 1977, Pat Ganahl, p. 64.
Article entitled Nitrous Charging by Ice by Internal Combustion Engineering located in Tucson, Arizona.

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