FIELD: machine building.
SUBSTANCE: invention relates to hydraulic displacement machines and can be used in multi-cylinder compressors. Compressor comprises frame 1, in which there is a crank mechanism and at least one cylinder-piston group, which includes cylinder 3 and piston 2. Cylinder 3 is fixed on frame 1 by means of flange connection. Crankshaft of the crank mechanism contains a sealant in the form of a rubber-metal collar. On the crosshead of the crank mechanism there are built-ups of antifriction material. Support flange made in the form of a separate part is installed in the flange connection of at least one cylinder 3 and frame 1. Type and/or arrangement of mounting holes of cylinder 3 differs from type and/or arrangement of mounting holes of the frame. At least part of fasteners of cylinder 3 and frame 1 are installed in support flange.
EFFECT: invention is aimed at providing the possibility of the piston compressor adaptation to specific operating conditions by changing the volume of working cylinders, as well as changing the number of compression stages of each specific cylinder.
5 cl, 10 dwg
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