Viscous clutch assembly for torque transmission in motor vehicle

Details Viscous clutch assembly for torque transmission in motor vehicle Viscous clutch assembly for torque transmission in motor vehicle

1990-04-06

1991-08-06

Herrmann, Allan D.

192 clutches and power-stop control

Clutches

Automatic

192 52, F16D 43284

Patent

active

050369636

ABSTRACT:
A viscous clutch assembly adapted for installation in a torque transmission system for effecting a drive connection between a pair of rotary members coaxially arranged for relative rotation. The viscous clutch assembly includes a viscous coupling arranged for generating a viscous resistance force in response to relative rotation between the rotary members, a first cam mechanism cooperable with the viscous coupling for converting the viscous resistance force into a thrust force, a friction disc clutch arranged to be brought into engagement when applied the thrust force from the first cam mechanism for establishing the drive connection between the rotary members, and a second cam mechanism cooperable with the viscous coupling for increasing and decreasing the viscous resistance force in response to a difference in torque between the rotary members.

REFERENCES:
patent: 1974390 (1934-09-01), Eason
patent: 2861225 (1958-11-01), Mergen
patent: 3437186 (1969-04-01), Roper
patent: 3481436 (1969-12-01), Wilkowski
patent: 3490312 (1970-01-01), Seitz et al.
patent: 4058027 (1977-11-01), Webb
patent: 4266445 (1981-05-01), Goscenski, Jr.
patent: 4683998 (1987-08-01), Cigdem et al.
patent: 4690258 (1987-09-01), Teraoka et al.
patent: 4842111 (1989-06-01), Lanzer et al.

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