Housing construction for slant axis rotary mechanism

Claim 1

In a slant axis rotary mechanism including, a shaft having an angularly offset portion, a rotor journalled on said angularly offset portion, a rotor journalled on said angularly offset portion, said rotor having a peripheral flange with plural apices on each side of the flange, and a housing defining an operating chamber receiving said rotor and including an outer, spherical peripheral wall adapted to be sealingly engaged by sealing means carried by the periphery of said flange, and spaced, generally radially extending side walls adapted to be sealingly engaged by seals carried by said rotor apices, the improvement wherein said housing is defined by a pair of housing segments flanking said rotor, each segment having one of said radially extending side walls formed therein, and a liner having a spherical inner surface defining said outer spherical peripheral wall clamped between and backed by said housing segments, each said segment including a peripheral groove at the outermost extremity of the associated radially extending side wall, said liner being partly received in said grooves, said housing segments further including annular shoulders backing said liner.