Air intake system for multi-cylinder engine

Details Air intake system for multi-cylinder engine Air intake system for multi-cylinder engine

2005-08-02

2005-08-02

Mohanty, Bibhu (Department: 3747)

Internal-combustion engines

Engine speed regulator

Having plural throttle valve structure

C123S337000, C123S319000, C123S184100

Reexamination Certificate

active

06923156

ABSTRACT:
A throttle device is arranged in the midstream of an individual passage consisting of a low-speed individual intake passage and a high-speed individual intake passage on the downstream of a surge tank. A valve body is rotatably provided in the throttle valve device. The inside of the valve body is formed with an in-valve low-speed passage and an in-valve high-speed passage that are adjacently placed with respect to the rotational axis of the valve body. The intake air supply is performed through only the low-speed individual passage when the opening of the valve body is equal to or less than a predetermined value, and through both the low-speed individual intake passage and high-speed individual intake passage when the opening of the body is larger than the predetermined value.

REFERENCES:
patent: 4892071 (1990-01-01), Asayama
patent: 6712040 (2004-03-01), Giffin
patent: 39 36 263 (1990-05-01), None
patent: 0 822 325 (1998-02-01), None
patent: 793 114 (1936-01-01), None
patent: 5-078651 (1993-10-01), None
patent: 2001-073813 (2001-03-01), None

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