Matsushita Refrigeration Company

Masahiro Kakutani

Akihiko Kubota

Masahiko Osaka

Manabu Motegi

Takeshi Kojima

Hidetoshi Nishihara

Kazuhito Noguchi

Toshihiko Ota

Hiroki Awashima

Ichiro Kita

In a hermetic compressor in a freezing refrigerating system or an air-conditioning system such as a refrigerator or a showcase, a construction is disclosed for intending to provide a low-noise hermetic compressor by effectively attenuating a pressure pulsation having occurred in a compression chamber with a suction muffler. By this construction, since a muffler coverhas a planar simple shape, the deformation upon molding becomes little and it can come into fully close contact with a muffler main body. Therefore, the pressure pulsation hardly leaks through the connecting portion between the muffler main bodyand the muffler cover. The full silencing effect that the suction mufflerhas is obtained and thereby noise can be reduced more effectively.

Hermetic compressor and freezing air-conditioning system

This invention relates to a hermetic compressor used on a refrigerant cycle such as a refrigerator, and discloses a low noise compressor designed to attenuate a resonance sound in a compression chamber and intake pressure pulsing more operatively at a position adjacent to their sources, which intake pressure pulsing occurs at an intake valve port. In the compressor, a resonance spaceis provided adjacent to the intake valve portthat is closer in distance to a noise source. As a result, noise can be reduced more operatively than muffling functions of an intake mufflerdo. In addition, although acoustic characteristics of the intake muffleramplify noises having specific frequencies, such noises can be attenuated before being amplified.

Hermetic compressor with an improved cylinder head-suction muffler assembly

A closed motor-driven compressor includes a compression component ( ) and an electric component ( ) for driving the compression component ( ), both of which are elastically supported within a closed vessel ( ). A suction muffler ( ) is mounted on the compression component ( ) and includes a plurality of elements ( ) assembled together and each made of synthetic resin. One of the plurality of elements ( ) has a guide rib ( ) integrally formed therewith that is tapered down toward an adjoining one of the plurality of elements ( ), thereby facilitating assembly of the two elements.

Suction muffler for a hermetic compressor

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Fujisawa, Japan

Masahiro Kakutani