Method, and a valving arrangement, for improving air-fuel mixing

Details Method, and a valving arrangement, for improving air-fuel mixing Method, and a valving arrangement, for improving air-fuel mixing

1987-08-14

1988-07-12

Cox, Ronald B.

Internal-combustion engines

Poppet valve operating mechanism

Rod

123188S, 123188VA, F01L 104

Patent

active

047562811

ABSTRACT:
The method comprises a couple of features: (a) late closing of an air intake valve (for a cylinder) to induce a high-velocity, air injection just before closure, and (b) admitting fuel gas into the cylinder via the air intake valve. The valving arrangement comprises a valve and a seat therefore having mating surfaces which substantially effect an initial closure of the valve on the seat at only one side of the valve. As a consequence, a high-velocity jet of air streams into the associated cylinder, via the other, later-closing side of the valve, just before full valve closure. The high-velocity air injection, the same being a purposely-directed, swirl-generating, injection, according to the method or valving arrangement, induces an enhanced air-fuel admixing in the cylinder.

REFERENCES:
patent: 2593769 (1952-04-01), Kollsman
patent: 2647500 (1953-08-01), Lang
patent: 3146764 (1964-09-01), Elsbett
patent: 3981281 (1976-09-01), Deschler
patent: 4438740 (1984-03-01), Slee

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