Patent ID: 6398530
Filing Date: 2002-06-04
Classification: F04C

Abstract:
A compressor comprising:a scroll compressor with a first compressor member and a second compressor member, said compressor members having first and second scroll ribs, respectively, in the form of a circular involute and engaging in one another such that the second compressor member is movable in relation to the first compressor member on an orbital path about a central axis, a drive for the scroll compressor with a drive motor and an entraining unit having an eccentric body fixed on said drive shaft as an entraining member driven by the drive motor and moving on an entraining path about said central axis, and an entraining member receiving means provided on the body of the second compressor member, the entraining member receiving means being movable in a radial direction in relation to said central axis with a radial degree of freedom in relation to the entraining member, such that the second compressor member is movable so as to sealingly abut with the second scroll rib on the first scroll rib of the first compressor member on account of the radial degree of freedom and the centrifugal forces acting on the second compressor member, the entraining member having an entraining member surface curved convexly in a direction transverse to the central axis in a direction of rotation, the entraining member receiving means being non-rotatably arranged in relation to the second compressor member and having an entraining surface surrounding the entraining member in a ring shape, the entraining member surface bearing on said entraining surface by always acting upon it with a force only in a subsection, during movement of the second compressor member on the orbital path, the subsection acted upon with a force likewise moving on the entraining surface, and a space allowing the radial degree of freedom of the entraining member receiving means in relation to the entraining member existing between the entraining member and the entraining surface outside the subsection acted upon with a force.