Water pump disconnect clutch

Details Water pump disconnect clutch Water pump disconnect clutch

2008-07-17

2011-11-15

Lorence, Richard M. (Department: 3655)

192 clutches and power-stop control

Clutches

Automatic

C192S065000, C192S08200T

Reexamination Certificate

active

08056689

ABSTRACT:
A water pump disconnect clutch including: a first race having first and second portions with first and second diameters, respectively; a second race having at least one ramp; at least one rolling element disposed radially between the first and second races; and an engagement means for axially displacing the at least one rolling element. In response to an increase in temperature for the pump above a specified level, the engagement means is for axially displacing the at least one rolling element from a first position, in which the first and second races are rotationally independent, to a second position to rotationally lock the first and second races. In response to a decrease in temperature for the pump below the specified level, the engagement means is for axially displacing the at least one rolling element from the second position to the first position.

REFERENCES:
patent: 2570515 (1951-10-01), Bonham
patent: 3279571 (1966-10-01), Wassilieff
patent: 3382852 (1968-05-01), De Lorean
patent: 3430519 (1969-03-01), Roper
patent: 6619454 (2003-09-01), Hayward
patent: 6684992 (2004-02-01), Goto et al.
patent: 6915887 (2005-07-01), Faller et al.

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