192 clutches and power-stop control – Clutches – Fluent material
Patent
1991-04-19
1993-01-05
Braun, Leslie A.
192 clutches and power-stop control
Clutches
Fluent material
192 702, 192113B, F16D 3100
Patent
active
051762358
ABSTRACT:
A viscous coupling apparatus having first rotary member, a second rotary member coaxially disposed relative to the first rotary member such that the first and second rotary members are rotatable with respect to each other, and housings associated with each of the first and second rotary members for defining a hermetically seal fluid chamber. A first set of viscous clutch plates are disposed within the fluid chamber and are coupled for rotation with the first rotary member. A second set of viscous coupling plates are disposed in the fluid chamber and are coupled for rotation with the second rotary member. The first and second sets of viscous clutch plates being alternately interleaved so as to be rotatable relative to each other. The viscous coupling further comprising a plurality of annular spacer rings each of which is interposed between adjacent ones of the second set of viscous plates for longitudinally positioning the interleaved spacing between the first and second sets of clutch plates. According to the present invention, stop projections are formed on the housing which extend into the fluid chamber for inhibiting excessive axial sliding movement of the outermost second set clutch plates located adjacent thereto while maintaining a predetermined clutch plate pack spacing.
REFERENCES:
patent: 4031780 (1977-06-01), Dolan et al.
patent: 4040271 (1977-08-01), Rolt et al.
patent: 4782930 (1988-11-01), Kuroiwa et al.
patent: 4899859 (1990-02-01), Teraoka
patent: 4900042 (1990-02-01), Genda
patent: 4928803 (1990-05-01), Ishikawa et al.
patent: 4942951 (1990-07-01), Kriebernegg et al.
Braun Leslie A.
New Venture Gear Inc.
Whitelaw Nicholas
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