Patent ID: 6148776
Filing Date: 2000-11-21
Classification: F01B,F01P,F02B

Abstract:
A power machine comprising:a common cylinder having a bore formed therein;two pistons disposed in said bore in opposed facing relation with respect to each other and being constructed and arranged to synchronously reciprocate within said bore in opposite respective directions;a transmission mechanism for converting linear reciprocating movement of said two pistons into a rotating movement, said transmission mechanism comprising:a stationary disc;a rotating disc, said rotating and stationary discs being operatively coupled to each other and to said two pistons to convert reciprocating movement of said pistons into rotation of said rotating disc; andan output shaft attached to said rotating disc by a connecting part;a housing fixed to said stationary disc which at least partially encloses said rotating disc; andat least one bearing assembly rotationally supporting at least one of said shaft and said connecting part, wherein said output shaft and said connecting part extend to only one side of said common cylinder so that said at least one bearing is disposed on said one side of said common cylinder.