Intake system for internal combustion engine

Details Intake system for internal combustion engine Intake system for internal combustion engine

1990-04-06

1992-01-21

Okonsky, David A.

Internal-combustion engines

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

Having multiple oxidant inlet means

123432, F02B 3100

Patent

active

050819712

ABSTRACT:
An intake system of an internal combustion engine includes first and second intake valve openings provided in the engine body and exposed to a combustion chamber, first and second intake valves in the engine body for opening and closing the valve openings, respectively, and a valve operating system connected to the intake valves for changing the modes of operation of the valves in compliance with the operation of the engine, wherein the engine body is provided with a swirl producing intake port leading to the first intake valve opening and a substantially linear main intake port leading to the second intake valve opening, and wherein the valve operating system is capable of changing over between a state meeting a low speed operation of the engine in which the first intake valve is operated in a mode corresponding to the low speed operation and the second intake valve is in a resting or substantially resting condition, and a state meeting at least a part of operational ranges of the engine other than the low speed operation in which the valves are operated in a mode corresponding to a high speed operation of the engine.

REFERENCES:
patent: 4285310 (1981-08-01), Takizawa et al.
patent: 4442806 (1984-04-01), Matsuura et al.
patent: 4480617 (1984-11-01), Nakano
patent: 4519350 (1985-05-01), Oda et al.
patent: 4523550 (1985-08-01), Matsuura
patent: 4537165 (1985-08-01), Honda et al.
patent: 4545342 (1985-10-01), Nakano et al.
patent: 4587936 (1986-05-01), Matsuura et al.

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