Patent ID: 7780421

Claim:
A hermetically encapsulated refrigerant compressor, comprising: a hermetically sealed compressor housing; a piston-cylinder unit disposed in an interior of the housing, said piston-cylinder unit compressing a refrigerant and comprising a suction valve with an intake port arranged in a valve plate of the suction valve; a suction muffler through which the refrigerant flows to the suction valve of the piston-cylinder unit, said suction muffler being disposed on the cylinder head of the piston-cylinder unit and comprising: a filling volume; an inlet cross section through which refrigerant flows into the suction muffler; and a compensating volume in connection with the suction muffler and the interior of the compressor housing and in which the refrigerant oscillates, wherein the inlet cross section is simultaneously a connecting port between the compensating volume and the filling volume, and the compensating volume is formed by an outer tube which tightly encloses the intake port and the inlet cross section and encloses a refrigerant suction pipe at least along a section, wherein the suction pipe extends from the exterior of the compressor housing into the interior of the compressor housing, and wherein the outer tube opens via a compensating opening and communicates with the interior of the compressor housing, and wherein the compensating volume and filling volume are arranged so that refrigerant from the suction pipe flows into the compensating volume by passing through the filling volume.