Title:
COMPRESSOR COMPRISING SHAFT SUPPORT
Document Type and Number:
WIPO Patent Application WO/2018/131436
Kind Code:
A1
Abstract:
A compressor (5) comprises: a casing (10); a motor (20); a crank shaft (30); a compression mechanism (40); and a shaft support (61). The casing (10) includes a cylindrical part (11) having an inner diameter of a first dimension (D1). The motor (20) includes a rotor (22) having an outer diameter of a second dimension (D2). The crank shaft (30) is fixed to the rotor (22) and rotates around a rotation axis (RA). The compression mechanism (40) compresses a low-pressure refrigerant so as to produce a high-pressure refrigerant. The shaft support (61) rotatably supports the crank shaft (30). The ratio (D1/D2) of the first dimension (D1) to the second dimension (D2) is 1.8 or less. The total length (L) of the shaft support (61) in the extension direction of the rotation axis (RA) is 10 to 40 mm.
Inventors:
TOMIOKA NAOTO
Application Number:
PCT/JP2017/046209
Publication Date:
July 19, 2018
Filing Date:
December 22, 2017
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
International Classes:
F04C29/00; F04B39/00; F04C18/356
Domestic Patent References:
| WO2015056364A1 | 2015-04-23 | |||
| WO2014025025A1 | 2014-02-13 |
Foreign References:
| JPS4930166B1 | 1974-08-10 | |||
| JPS559586U | 1980-01-22 | |||
| JP2009002352A | 2009-01-08 | |||
| JP2009275645A | 2009-11-26 |
Attorney, Agent or Firm:
SHINJYU GLOBAL IP (JP)
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