Viscous fan clutch with engage port lock

Details Viscous fan clutch with engage port lock Viscous fan clutch with engage port lock

1997-06-25

1998-11-24

Lorence, Richard M.

192 clutches and power-stop control

Clutches

Fluent material

192 58682, 192 588, 192 82T, F16D 3502

Patent

active

058395580

ABSTRACT:
A clutch includes an input shaft with a clutch plate engaged with the input shaft to rotate in concert therewith. The clutch plate has an annular disk portion with a clutch plate set of lands and grooves. A housing includes a body supported on the input shaft by a bearing with a body set of lands and grooves mating with the clutch plate set of lands and grooves. A cover is included as part of the housing and engages with the body. A pump plate is captured between the cover and the body separating out a working chamber. The pump plate includes an engage port and a pump-out port positioned further radially outward in the pump plate than the engage port. A control arm normally closes the engage port and is rotatable to open the engage port. A slide-block is carried in a pocket of the cover with a spring biasing the slide-block toward engagement with the control arm. The slide-block locks the control arm against rotation when the clutch is inactive.

REFERENCES:
patent: 3690428 (1972-09-01), LaFlame
patent: 4570771 (1986-02-01), Yamaguchi et al.
patent: 4574929 (1986-03-01), Hayashi et al.
patent: 4960191 (1990-10-01), Lambert et al.
patent: 5119921 (1992-06-01), Drennen et al.

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