Floating wiper for a pump plate of a viscous fluid clutch

Details Floating wiper for a pump plate of a viscous fluid clutch Floating wiper for a pump plate of a viscous fluid clutch

1989-09-08

1990-07-03

Lorence, Richard

192 clutches and power-stop control

Clutches

Fluent material

F16D 3502

Patent

active

049383280

ABSTRACT:
A floating wiper assembly mounted on a pump plate of a viscous fluid clutch includes a spring secured at its first end to a pump plate. A wiper formed from a low-friction material is secured to a second end of the spring and received in an opening in the pump plate. During assembly of the clutch, the wiper is urged by the spring into the pumping chamber and accommodates variances in machining and assembly variances. The wiper projects into a pumping chamber to create a fluid pressure rise to enhance the pump-out through an orifice of fluid in the pumping chamber to the reservoir.

REFERENCES:
patent: 3880265 (1975-04-01), Elmer
patent: 4269295 (1981-05-01), Kish

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