Position sensor

Details Position sensor Position sensor

1996-12-16

1998-04-07

Dombroske, George M.

Measuring and testing

Simulating operating condition

Marine

123337, G01M 1500

Patent

active

057366357

ABSTRACT:
A position sensor for a throttle valve, the position sensor including a housing having a partition wall separating an attachment chamber and a sensor accommodating chamber, each of which include an outer opening. The partition wall defines a central opening. The housing is connected to a case of the throttle valve such that the outer opening of the attachment chamber is closed by the throttle valve case. A drive shaft of the throttle valve is connected to a driven shaft mounted in the attachment chamber, the driven shaft being rotatably supported on the partition wall. A sliding-element receiver is located within the accommodating chamber and is connected through the central opening in the partitioning wall to the driven shaft. The driven shaft and the sliding-element receiver cooperate to close the central opening of the partition wall. A insulating substrate is disposed within the accommodating chamber opposite to the sliding-element receiver. A cover is mounted over the outer opening of the accommodating chamber and attached to the housing with thermosetting resin, thereby sealing the opening of the accommodating chamber. A communicating hole is provided in the partition wall of the housing and connecting the accommodating chamber with the attachment chamber, whereby the communicating hole provides the only passage into the accommodating chamber through which air escapes from the accommodating chamber when the thermosetting resin is heated. In one embodiment, the communicating hole is tapered between the accommodating chamber toward the attachment chamber.

REFERENCES:
patent: 5092296 (1992-03-01), Gunter et al.
patent: 5144277 (1992-09-01), Ishihara et al.
patent: 5567874 (1996-10-01), Suzuki et al.
patent: 5571960 (1996-11-01), Tateishi et al.

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