Expansible chamber devices – With guide or seal on cylinder end portion for piston or... – Non-metallic seal means between piston or member and end...
Patent
1978-04-17
1980-07-08
Maslousky, Paul E.
Expansible chamber devices
With guide or seal on cylinder end portion for piston or...
Non-metallic seal means between piston or member and end...
74498, 277153, 277166, 277180, F16J 1518
Patent
active
042111528
ABSTRACT:
An improved power steering motor seal performs three functions. The seal engages a tubular motor cylinder wall to prevent leakage of fluid between the wall and a housing. The seal also engages a rack bar to prevent fluid leakage between the rack bar and the housing. In addition, the seal blocks exposure of the housing, which is fluid pervious, to the fluid pressure in a motor chamber. The seal includes an annular body section which is disposed in a cavity in one end of the housing and engages the rack bar. The seal has a flange section which extends across the outer end of the housing into sealing engagement with the motor cylinder wall. A metal reinforcing member is provided to hold elastomeric sealing material in the flange section in sealing engagement with the inner surface of the motor cylinder wall.
REFERENCES:
patent: 2899938 (1959-08-01), Gardner
patent: 3166908 (1965-01-01), Chouings
patent: 3347109 (1967-10-01), Adams et al.
patent: 3511513 (1970-05-01), Dahlheimer
patent: 3944015 (1976-03-01), Bishop
Colletti John B.
Howell Forrest W.
Maslousky Paul E.
TRW Inc.
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