Temperature sensitive fluid coupling

Details Temperature sensitive fluid coupling Temperature sensitive fluid coupling

1991-11-05

1993-08-03

Bonck, Rodney H.

192 clutches and power-stop control

Clutches

Fluent material

192 82T, F16D 3500, F16D 4325

Patent

active

052320740

ABSTRACT:
A fan coupling device controls the transfer of torque from a rotating shaft to a closed housing having an oil basin chamber and a torque transfer chamber by varying the effective contact area of oil in a torque transfer gap defined between a driving disc secured to the rotating shaft and the inner wall surface of the closed housing. To incorporate a sub pumping function, a sub dam member is attached to the inner circumferential surface of the closed housing, a sub circulatory passage is formed which leads from around the sub dam member inside the torque transfer chamber to the oil basin chamber, and a temperature-sensitive valve element is provided inside the oil basin chamber to open and close the outlet port of the sub circulatory passage in accordance with the internal temperature of the closed housing.

REFERENCES:
patent: 4796571 (1989-01-01), Ono et al.
patent: 4846331 (1989-07-01), Ono
patent: 4930457 (1990-06-01), Tamai
patent: 5060774 (1991-10-01), Takikawa et al.
patent: 5125491 (1992-06-01), Takikawa et al.
patent: 5139125 (1992-08-01), Takikawa et al.

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