Intake apparatus for internal combustion engine

Details Intake apparatus for internal combustion engine Intake apparatus for internal combustion engine

1988-07-13

1989-08-22

Okonsky, David A.

Internal-combustion engines

Multiple cylinder

123 52MC, F02B 2702

Patent

active

048585688

ABSTRACT:
An intake apparatus for an internal combustion engine that has a first intake passage communicating with a combustion chamber of the internal combustion engine; a second intake passage which communicates with the combustion chamber of the internal combustion engine and whose length is greater than a length of the first intake passage; a valve for selectively changing over the communication/shutting off of the combustion chamber of the internal combustion engine with/from between the first or/and second intake passages; and a drive circuit for driving the valve to effect the changing over operation. A controller controls the drive circuit, and an air cleaner device introduces clean air into the combustion chamber of the internal combustion engine. The first and second intake passages are disposed inside a case of the air cleaner device, and the valve is disposed at a position which is prevented from interfering the outlet side of the second intake passage when the first intake passage is closed by the valve and the second intake passage is opened by the valve.

REFERENCES:
patent: 4617897 (1986-10-01), Sasaki et al.
patent: 4646689 (1987-03-01), Katsumoto et al.

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