A first rotor (40) fixed to the drive shaft (5) rotates with this as against a second and tippable rotor (41) which adjusts on the shaft. A two-part joint (42) has holding sectors on the joint parts connected to a connecting screw-bolt (43) and element (44) for the respective rotors. One of the holding sectors is toothed inside and the other sector admits the screw-bolt as joint connector. The screw-bolt is screwed at given torque into the holding sector thread. The bolt head bears against the outside of the opposing holding sector. The thread connection between the bolt and holding sector is locked down once assembled. Additional components include the compressor cylinder (1) having front and rear heads (4,3) via an interposed valve plate (2). Each piston (7) is linked by its rod (11) to the common swashplate (10). The delivery chamber (12) in the rear head is ringed by an intake chamber (13).
