Pressure relief at fuel injection valve upon termination of inje

Details Pressure relief at fuel injection valve upon termination of inje Pressure relief at fuel injection valve upon termination of inje

1976-02-17

1977-12-27

Myhre, Charles J.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

123139AF, 123139AT, F02M 5106

Patent

active

040648559

ABSTRACT:
Immediately downstream of the high pressure fuel pump and electrical signal is generated by that part of the fuel pressure impulse intended to cause the fuel injection valve to close. That electrical signal energizes a solenoid causing the opening of a pressure relief valve incorporated into the valve body of the fuel injection valve. The relief valve is timed to open upon the closing of the fuel injection valve. In a multi-cylinder engine, the pressure relief valves for all cylinders are opened simultaneously. The pressure relief valves discharge into a pressure relief chamber, which may be individual for each valve or a common manifold communicating with the fuel supply.

REFERENCES:
patent: 1613000 (1927-01-01), Widdowson
patent: 3587547 (1971-06-01), Hussey et al.
patent: 3837324 (1974-09-01), Links
patent: 3851635 (1974-12-01), Murtin et al.
patent: 3859972 (1975-01-01), Watson et al.
patent: 3880131 (1975-04-01), Twaddell et al.

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