F - Mech Eng,Light,Heat,Weapons – 04 – C
Patent
F - Mech Eng,Light,Heat,Weapons
04
C
103/95
F04C 2/00 (2006.01) F01C 19/12 (2006.01) F16J 15/32 (2006.01)
Patent
CA 1068162
ABSTRACT OF DISCLOSURE A seal for a vane type fluid pressure motor or pump. The motor or pump comprises a housing having a chamber receiving a rotor, an elongated bore extends through the housing and the rotor and receives a shaft which is drivingly engaged by the motor through a splined connection. A seal assembly is disposed on either side of the rotor to prevent leakage from the area bet- ween the side walls of the rotor and the side walls of the chamber and into the elongated bore. Each seal assembly is comprised of a cylindrical sleeve affixed to a side wall of the rotor and extends axially therefrom. The assem- bly is disposed in an annular recess in the bore at a point adjacent the rotor. The sleeve is affixed to the rotor for rotation therewith and is spaced from an undercut portion of the housing wall. The undercut defines the annular re- cess. An annular elastomeric sealing member is disposed in the recess and is affixed at its radially outward side to the recess wall and surrounds and snugly engages the sleeve. The oil seal assembly is independent of the shaft. The sealing member is constructed so that the leakage pressure assists in forcing the member into further sealing engagement with the rotating sleeve.
259567
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