Pumping element for temperature responsive viscous fan drive

Details Pumping element for temperature responsive viscous fan drive Pumping element for temperature responsive viscous fan drive

1979-01-17

1981-06-09

Herrmann, Allan D.

192 clutches and power-stop control

Clutches

Fluent material

192 82T, F16D 3500, F16D 4325

Patent

active

042719461

ABSTRACT:
A pumping element configured in assembly as a generally "L" shaped member having an axially extending portion interposed between the inner peripheral surface of the housing and the outer peripheral surface of the clutch of a viscous drive to direct fluid between two side surfaces radially inwardly toward a radial front edge of a radially extending portion of the pumping element thereafter into the outlet opening in the pump plate. The pumping element allows for the construction of a viscous drive having a relatively low angular velocity in the disengaged mode, a relatively high angular velocity in the engaged mode without high speed pump out, and a relatively short pump out time.

REFERENCES:
patent: 3174600 (1965-03-01), Oldberg
patent: 3463282 (1969-08-01), Fujita et al.
patent: 4051936 (1977-10-01), Crisenbery et al.
patent: 4086990 (1978-05-01), Spence
patent: 4132299 (1979-01-01), Rohrer et al.

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