Throttle valve switch unit

Details Throttle valve switch unit Throttle valve switch unit

1997-05-13

1998-04-28

Dombroske, George M.

Measuring and testing

Simulating operating condition

Marine

73116, 731181, 123478, G01M 1500

Patent

active

057431329

ABSTRACT:
A throttle valve switch unit for use with a throttle valve situated in an internal combustion engine. A mobile contact is drivingly connected to the throttle valve for movement with rotation of the throttle valve. The mobile contact is engageable with at least two fixed contacts. The first fixed contact is placed for engagement with the mobile contact when the throttle valve occupies a first predetermined position. The second fixed contact is placed for engagement with the mobile contact when the throttle valve occupies a second predetermined position. The first fixed contact is connected through a first resistance element to one of a first terminal for connection to the ground and a second terminal for connection with a source, of voltage. The second fixed contact is connected to the one terminal through a second resistance element having a resistance value different from that of the first resistance element. The mobile contact is connected to the other terminal through a third resistance element. The mobile contact is connected to a single signal terminal for producing signals having voltage levels different when the throttle valve occupies the first predetermined position than when the throttle valve occupies the second predetermined position.

REFERENCES:
patent: 4561295 (1985-12-01), Kamai
patent: 4653453 (1987-03-01), Kamai et al.
patent: 4679440 (1987-07-01), Okamura
patent: 4715220 (1987-12-01), Eitoku et al.
patent: 4719795 (1988-01-01), Eitoku et al.
patent: 5070728 (1991-12-01), Kubota et al.
patent: 5321980 (1994-06-01), Hering et al.

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