HERMETIC TYPE COMPRESSOR AND REFRIGERATION CYCLE APPARATUS

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United States of America Patent

SERIAL NO

12953731

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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As a hermetic type compressor, a motor portion and a compression mechanism portion that are coupled to the motor portion with a rotating shaft interposed therebetween are accommodated in a closed vessel. The compression mechanism portion comprises a cylinder that comprises an internal diameter hole, and a main bearing and a sub-bearing in which a bearing hole that journals the rotating shaft is provided and the internal diameter hole of the cylinder is closed to form a compression chamber in the compression mechanism portion. The main bearing and the sub-bearing have a circular groove that is opened toward the compression chamber side, an inner circumferential surface of the circular groove is tapered such that a diameter increases gradually from the compression chamber side toward an opposite side of the compression chamber side, and a depth of the circular groove is set to 40% of a diameter of the bearing hole.

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Patent Owner(s)

Patent OwnerAddress
TOSHIBA CARRIER CORPORATION72-34 HORIKAWA-CHO SAIWAI-KU KAWASAKI-SHI KANAGAWA 2128585

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
FUTAMI, Toshihiko Fuji-shi, JP 15 340
MIURA, Kazuhiko Fuji-shi, JP 42 653
SATODATE, Koji Fuji-shi, JP 5 21

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