Refrigerant compressor

Abstract

A hermetically encapsulated refrigerant compressor which comprises a hermetically sealed compressor housing (1), in the interior of which a piston-cylinder unit which compresses a refrigerant and a suction pipe (2) and a pressure pipe (3) are provided, with refrigerant flowing via the suction pipe (2) to the piston-cylinder unit and the refrigerant compressed by the piston-cylinder unit being conveyed out of the compressor housing (1) via the pressure pipe (3), with connection openings (5) for the suction pipe (2) and the pressure pipe (3) being provided on the compressor housing (1), with the connection of the suction pipe (2) and pressure pipe (3) to the connection openings (5) occurring in a hermetically tight manner by means of a connection apparatus (9) and with the connection apparatus (9) comprising a preferably sleeve-like body element (8) and at least one spacer element (7) which spaces the body element (8) from the suction pipe (2)/pressure pipe (3). It is provided in accordance with the invention that the body element (8) is attached to an outside (13) of the compressor housing (1) outside of the connection opening (5) by enclosing the same in a hermetically sealing manner.

Description

BACKGROUND OF THE INVENTION[0001]The present invention relates to a hermetically encapsulated refrigerant compressor which comprises a hermetically sealed compressor housing, in the interior of which a piston-cylinder unit which compresses a refrigerant and a suction pipe and a pressure pipe are provided, with refrigerant flowing via the suction pipe to the piston-cylinder unit and the refrigerant compressed by the piston-cylinder unit being conveyed out of the compressor housing via the pressure pipe, with connection openings for the suction pipe and the pressure pipe being provided on the compressor housing which enable the overflow of the refrigerant from the outside of the compressor housing into the interior of the compressor housing and vice-versa, with the connection of the suction pipe and pressure pipe to the connection opening occurring in a hermetically tight manner by means of a connection apparatus, with the connection apparatus comprising a preferably sleeve-like body ...

AI Technical Summary

Benefits of technology

[0014]It is therefore the object of the present invention to reduce the efficiency losses caused by the heating of the aspirated refrigerant in the area of the connection openings of the compressor housing and to optimize the efficiency of the refrigerant compressors. A connection apparatus is to be provided for this purpose which considerably reduces the heat transmission between the compressor housing and suction pipe or pressure pipe, so that the lowest possible temperature level of the refrigerant is ensured at the beginning of the compression process, i.e. during the aspiration into the cylinder of the piston-cylinder unit.

Problems solved by technology

Since the drawn refrigerant is thus heated, there is an adverse effect on the efficiency of the refrigerant compressor.

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