Fluid coupling device and improved valving therefor

Details Fluid coupling device and improved valving therefor Fluid coupling device and improved valving therefor

1989-09-13

1990-12-04

Bonck, Rodney H.

192 clutches and power-stop control

Clutches

Fluent material

192 82T, 123 4112, F16D 3500

Patent

active

049747126

ABSTRACT:
A fluid coupling device is disclosed of the type including a valve plate (31) separating the fluid chamber into an operating chamber (33) and a reservoir chamber (35). The valve plate defines first and second fill openings (43a,43b), flow through which is controlled by a valve member (41) which rotates in the plane of the valve plate in response to variations in temperature. The first (43a) and second (43b) fill openings are disposed in generally the same region of the valve plate (31). The valve member (41) includes first (41a) and second (41b) port covering portions, disposed to cover the fill openings, when the valve member is in a disengaged condition, and to uncover the openings as the valve member moves toward an engaged condition. Having the fill openings in the same region of the valve plate substantially reduces the negative effects of errors in the concentricities of the valve arm, valve plate and the various parts of the device.

REFERENCES:
patent: 3227254 (1966-01-01), Sutaruk
patent: 3463282 (1969-08-01), Fujita et al.
patent: 3575269 (1969-09-01), Sherman
patent: 3943893 (1976-03-01), Tsubaki et al.
patent: 4446952 (1984-05-01), Masai
patent: 4502580 (1985-03-01), Clancey
patent: 4618045 (1986-10-01), Storz
patent: 4627524 (1986-12-01), Hayashi et al.

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