Method and apparatus for fuel mixture enrichment during accelera

Details Method and apparatus for fuel mixture enrichment during accelera Method and apparatus for fuel mixture enrichment during accelera

1978-02-16

1980-09-23

Cox, Ronald B.

Internal-combustion engines

Charge forming device

Fuel injection system

123445, 123489, F02B 300, F02M 3900

Patent

active

042236436

ABSTRACT:
The fuel mixture preparation system of an internal combustion engine, especially a continuous fuel injection system, is engaged during intended engine accelerations by a pressure sensor in the induction manifold which responds to increasing manifold pressure to close a switch. The switch closure affects a pressure control valve that changes the control pressure in the fuel injection system and thereby causes temporary fuel enrichment until the differential pressure in the pressure sensor has returned to equilibrium. The signal from the pressure sensor may be extended arbitrarily by interposition of an electronic timing circuit which is constructed as an integrating circuit so that its output signal, when processed by a comparator, will produce a proportionally extended actuation signal for the control valve.

REFERENCES:
patent: 3661126 (1972-05-01), Baxendale
patent: 3971354 (1976-07-01), Luchaco
patent: 3981288 (1976-09-01), Wessel
patent: 4221554 (1978-10-01), Sueishi

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