Patent ID: 7144227

Claim:
A reciprocating-piston machine, in particular a refrigerant compressor ( 1 ) for a motor vehicle air-conditioning system, comprising a machine shaft ( 2 ) rotatably supported in a machine housing ( 3 ), a plurality of pistons ( 4 ) arranged circularly on a cylinder envelope extending around said machine shaft ( 2 ) in said machine housing ( 3 ), an annular pivoting disc ( 5 ) disposed around said machine shaft ( 2 ) along said envelope and being driven by said machine shaft ( 2 ), said annular pivoting disc ( 3 ) engaging the pistons ( 4 ) via a joint arrangement ( 6 ), a driver ( 7 ) mounted on said drive shaft ( 2 ) and extending therefrom to said pivoting disc and being connected thereto in an articulated manner for transmitting drive forces to said pivoting disc ( 5 ), and a sliding body ( 9 ) axially movably supported on said machine shaft ( 2 ), said pivoting disc being supported on said sliding body ( 9 ) so as to be pivotable about a hinge axis ( 8 ) oriented transversely to said machine shaft, and said driver ( 7 ) having an articulation portion ( 7 a ), which is located outside a main center-plane ( 10 ) which extends perpendicularly to the hinge axis ( 8 ) and through the axis of rotation ( 11 ) of the machine shaft ( 2 ).