Fuel injection system for an internal combustion engine

Details Fuel injection system for an internal combustion engine Fuel injection system for an internal combustion engine

1986-01-30

1987-06-09

Cox, Ronald B.

Internal-combustion engines

Charge forming device

Fuel injection system

123179L, F02M 1700

Patent

active

046712402

ABSTRACT:
A fuel injection type internal combustion engine provided with a pressure regulator for controlling a constant difference between a pressure of fuel supplied to the injector and a pressure of the intake system at the position where the injector is mounted. A tank is arranged for storing a positive pressure obtained while the engine is operated. A switching valve is arranged for connecting the tank with the pressure regulator when the engine is started when hot. Due to the operation of the regulator for maintaining the constant pressure difference, the pressure of the fuel supplied to the fuel injector is increased, making it difficult for the fuel to vaporize. Thus, preventing a so-called vapor lock.

REFERENCES:
patent: 3487820 (1970-01-01), Clark
patent: 4404944 (1983-09-01), Yamazaki et al.
patent: 4481926 (1984-11-01), Miki
patent: 4539960 (1985-09-01), Cowles

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