Air intake system for a fuel-injection engine

Details Air intake system for a fuel-injection engine Air intake system for a fuel-injection engine

1992-03-30

1992-12-01

Cross, E. Rollins

Internal-combustion engines

Means to whirl fluid before, upon, or after entry into...

Having multiple oxidant inlet means

123470, 123432, 123337, F02B 3100

Patent

active

051672111

ABSTRACT:
An air intake system for a fuel injection engine having cylinders equipped with a swirl port and a conventional straight port. The air intake system comprises a swirl control valve for opening or closing the inlet air passage to the straight port, and further comprises an adapter piece installed in the division wall separating the inlet air passages into the swirl port and the straight port. An aperture communicating both inlet air passages is formed in the adapter piece, and the size thereof is optimized in consideration of the size of an air induction hole disposed in the swirl control valve, to thereby obtain a larger operation area of the air fuel ratio of the lean air fuel mixture supplied to the engine.

REFERENCES:
patent: 4553507 (1985-11-01), Shaffer
patent: 4625687 (1986-12-01), Hatamura
patent: 4719886 (1988-01-01), Katani
patent: 4770139 (1988-09-01), Tanaka
patent: 4805569 (1989-02-01), Suzumura
patent: 4938191 (1990-07-01), Oldani

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