Abstract: A motor-compressor comprising a vibration motor (1) having a rotationally vibrating drive shaft (4) and a compressor (2) having at least one piston (10) which is linearly reciprocated by the motor shaft (4) is suspended in the housing (14) by means of springs (15) so that the points of attachment (17) of the springs are coplanar with and as close as possible to the axis (16) of the rotation, to which the motor- compressor is subjected in operation. This counteracts the imbalance forces to a maximum extent and minimizes the dynamic forces on the housing.