Positive-displacement machine

Abstract

The invention relates to a positive-displacement machine in accordance with the spiral principle, in particular a scroll-type compressor, with a. a housing, b. an orbiting displacement spiral and a mating spiral which engage into one another in such a way that variable compression chambers are formed between the displacement spiral and the mating spiral, in order to receive and to compress an operating medium which flows through an operating medium circuit, c. a drive shaft which is drive-connected to the displacement spiral, and d. an anti-rotation mechanism for guiding the displacement spiral. It is characterized in that a bearing of the drive shaft is arranged in a multiple-part bearing plate, the bearing plate comprising a first housing portion with a bearing seat for the bearing, and a second housing portion which is connected to the first housing portion, wherein the second housing portion projects radially inwards beyond an inner wall of the first housing portion.

Dependencies are inferred from the claim text.