192 clutches and power-stop control – Clutches – Fluent material
Patent
1979-06-08
1981-08-11
Herrmann, Allan D.
192 clutches and power-stop control
Clutches
Fluent material
192 82T, F16D 3500, F16D 4325
Patent
active
042829607
ABSTRACT:
A viscous fluid clutch is provided which embodies first, second and third drive members rotatable about a common axis. The second drive member is provided with an internal chamber in which both the first and third drive members are disposed. A predetermined amount of viscous fluid is disposed within the chamber. The third drive member is positioned between the first drive member and a chamber-forming wall of the second drive member. The second and third drive members rotate as a unit and the third drive member is movable axially independently of said second drive member. Corresponding surfaces of the first and third drive members form therebetween an annular fluid shear space concentric with the rotary axis of the drive members. The chamber-forming wall of the second drive member is provided with a thermal-responsive membrane having a segment thereof independently movable axially of the first drive member in response to predetermined ambient temperature changes. Axial movement of the membrane effects axial movement of the third drive member and varies the configuration of the annular fluid shear space. All of the drive members are adapted to rotate as a unit when the first and third drive members are in closest axial proximity and the annular fluid shear space is substantially filled with the viscous fluid.
REFERENCES:
patent: Re24157 (1956-05-01), Johnson
patent: Re25481 (1963-11-01), Weir
patent: 2320900 (1943-06-01), Waltz
patent: 2570515 (1951-10-01), Bonham
patent: 2988188 (1961-06-01), Tauschek
patent: 3019875 (1962-02-01), Fowler
patent: 3261230 (1966-07-01), Rudnicki
patent: 3396909 (1968-08-01), Seifert
patent: 3485444 (1969-12-01), Linzenkirchner
patent: 3730151 (1973-05-01), Smith
patent: 3739891 (1973-06-01), La Flame
patent: 3893555 (1975-07-01), Elmer
patent: 3913713 (1975-10-01), F'Geppert
patent: 4060158 (1977-11-01), Kikuchi
Glasson Richard E.
Lauterbach Jerre F.
Cummins Engine Company
Herrmann Allan D.
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