Throttle valve system

Details Throttle valve system Throttle valve system

1998-07-20

2000-10-10

Yuen, Henry C.

Internal-combustion engines

Engine speed regulator

Idle speed control

123337, 123396, F02M 300

Patent

active

061290718

ABSTRACT:
An electronic throttle valve for an engine includes a throttle plate with upper and lower reliefs that allows for tight closed in bore sealing and allows the throttle plate to rotate past the maximum airflow position. A unidirectional spring force is used to reduce feedback control problems.

REFERENCES:
patent: 4344396 (1982-08-01), Yamada
patent: 4836163 (1989-06-01), Muschalik
patent: 4848505 (1989-07-01), Yoshizawa et al.
patent: 5081972 (1992-01-01), Daly et al.
patent: 5113910 (1992-05-01), Ball
patent: 5146887 (1992-09-01), Gluchowski et al.
patent: 5297521 (1994-03-01), Sasaki et al.
patent: 5429090 (1995-07-01), Kotchi et al.
patent: 5787861 (1998-08-01), Suzuki et al.

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