192 clutches and power-stop control – Clutches – Fluent material
Patent
1991-07-31
1992-06-02
Lorence, Richard
192 clutches and power-stop control
Clutches
Fluent material
192 82T, 123 4112, F16D 3502
Patent
active
051179555
ABSTRACT:
A temperature-controlled fluid friction coupling for intermittently driving a cooling fan of an internal combustion engine. The coupling comprises a drive input shaft having a rotor thereon, a housing rotatably supported on the drive input shaft for supporting a cooling fan, a fixed partition for dividing an interior space of the housing into a torque transmitting chamber and a reservoir chamber, a movable partition for dividing the reservoir chamber into an active chamber and a vacant chamber, a flexible annular diaphragm disposed between the movable partition and the housing, and a temperature sensitive element disposed outside of the housing.
Surfaces of the rotor provide shearing surface gaps around the rotor. The temperature sensitive element moves the movable partition in axial directions depending upon a change of ambient temperature thereby changing the distance between the two partitions and controlling a fan revolution speed.
REFERENCES:
patent: 3019875 (1962-02-01), Fowler
patent: 3180571 (1965-04-01), Caroli et al.
patent: 3194372 (1965-07-01), Weir
patent: 3323623 (1967-06-01), Roper
patent: 3739891 (1973-06-01), LaFlame
patent: 4282960 (1981-08-01), Glasson et al.
patent: 4662495 (1987-05-01), Brunken
patent: 4930457 (1990-06-01), Tamai
Lorence Richard
Usui Kokusai Sangyo Kaisha Ltd.
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