Engine throttle valve position detecting system

Details Engine throttle valve position detecting system Engine throttle valve position detecting system

1985-11-18

1987-03-31

Wolfe, Jr., Willis R.

Internal-combustion engines

Charge forming device

Fuel injection system

123478, 731173, F02M 5100, G01M 1500

Patent

active

046534539

ABSTRACT:
An engine throttle valve position detector has a throttle switch formed by a rotary detector member rotatable with the engine throttle valve, a single stationary contact and a single movable contact movable by a guide groove in the rotary detector member into and out of electrical contact with the stationary contact. The stationary and movable contacts are contacted together when the throttle valve is in both fully-closed and fully-open positions, to thereby emit electric signals to an electric control unit in which the signals are processed on the basis of engine intake air flow and engine oil temperature to judge one of the throttle valve fully closed and fully-open positions.

REFERENCES:
patent: 4359894 (1982-11-01), Ikeura et al.
patent: 4491115 (1985-01-01), Otobe et al.
patent: 4510902 (1985-04-01), Tsuchida et al.
patent: 4512319 (1985-04-01), Williams et al.
patent: 4523561 (1985-06-01), Kosuge
patent: 4561295 (1985-12-01), Kamai

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