多気筒形回転式圧縮機

Japanese Patent JP4594302

B2

A multi-cylinder rotary compressor is constructed by receiving in a sealed chamber (1) a rotating shaft (4), an electric motor section (3), and first to third compression mechanism sections (2A-2C). The rotating shaft (4) is rotatably supported by bearings (9, 11). The electric motor section (3) and the first to third compression mechanism sections (2A-2C) are connected to the rotating shaft. The compression mechanism sections (2A-2C) respectively have cylinder chambers (14a-14c) in which eccentric sections (4a-4c) and eccentric rollers (13a-13c) provided on the rotating shaft are received, cylinders (8A-8C) having the cylinders chambers, and blades (15a-15c) of which each head edge is in contact with the peripheral surface of the eccentric roller to partition the cylinder chamber into two. At least one of the two clearances (Sa, Sc), out of clearances (Sa, Sb, Sc, Sd) in sliding sections of the compression mechanism sections, of the second compression mechanism section (2B) not in contact with the bearings is set greater than the clearances (Sb, Sd) in the first and third compression mechanism sections (2A, 2C) in contact with the bearings. Run-out of the rotating shaft involved in its rotation can be reduced to improve compression efficiency.

Izumi Onoda
Masumi Hasegawa
Shinya Goto
Mototoshi Takasaka
Hisataka Kato
Koji Satodate
Toshiko Aoki

JP2006514713A

December 08, 2010

June 09, 2005

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Toshiba Carrier Co., Ltd.

F04C29/00; F04C18/356; F04C23/00

JPH10103223A	1998-04-21
JPH10266984A	1998-10-06
JPH06257580A	1994-09-13
JPH01151793A	1989-06-14
JPH051686A	1993-01-08

Sadao Muramatsu
Ryo Hashimoto
Satoshi Kono
Makoto Nakamura

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