Intake system for internal combustion engines

Details Intake system for internal combustion engines Intake system for internal combustion engines

1985-01-22

1986-10-21

Cross, E. Rollins

Internal-combustion engines

Combustion chamber means combined with air-fuel mixture...

Air or combustible mixture entering the combustion chamber...

123 52MB, 123188M, F02B 1500

Patent

active

046178970

ABSTRACT:
An intake system of an internal combustion engine is provided with a cross-sectional area changing means and a length changing means so that the cross-sectional area and/or the length of the intake system may be changed according to the change in the engine speed. Basically, at a high engine speed, the cross-sectional area is enlarged and the length is also enlarged to obtain an inertia supercharging effect at the high engine speed. By making the timing of changing the area different from that of changing the length, it is possible to maximize the inertia supercharging effect over a wide range of engine speeds. The cross-sectional area may be changed from SMALL to LARGE before the length is changed from LONG to SHORT, or after the length is changed from LONG to SHORT. The length may be changed stepwisely or continuously.

REFERENCES:
patent: 2835235 (1958-05-01), Gassmann
patent: 3177854 (1965-04-01), Garcea
patent: 3370575 (1968-02-01), Soubis
patent: 4318386 (1982-03-01), Showalter et al.
patent: 4512311 (1985-04-01), Sugiyama

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