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Patent Searching and Data


Title:
SCROLL COMPRESSOR AND REFRIGERATION CYCLE APPARATUS
Document Type and Number:
WIPO Patent Application WO/2018/220747
Kind Code:
A1
Abstract:
This scroll compressor is provided with: an oil separator which separates oil from a refrigerant discharged from a compression mechanism; an oil return pipe, one end of which is connected to the oil separator; and a first pump element which is connected to the other end of the oil return pipe and which supplies oil to a bearing operating space through an intra-shaft flow channel formed within a rotary shaft. The scroll compressor is configured such that the oil within the oil separator is returned directly to the first pump element through the oil return pipe and then supplied to the bearing operating space from the first pump element, whereby the pressure within the bearing operating space is kept higher than that in a suction space.

Inventors:
KAWAMURA, Raito (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
SEKIYA, Shin (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
Application Number:
JP2017/020268
Publication Date:
December 06, 2018
Filing Date:
May 31, 2017
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORPORATION (7-3 Marunouchi 2-chome, Chiyoda-ku Tokyo, 10, 〒1008310, JP)
International Classes:
F04C18/02; F04C29/02
Domestic Patent References:
WO2015059833A12015-04-30
WO2008093397A12008-08-07
Foreign References:
JP2005240637A2005-09-08
JPH055486A1993-01-14
JPH077590Y21995-02-22
JP2010101188A2010-05-06
JPS6075795A1985-04-30
JPH05223074A1993-08-31
JPH05312437A1993-11-22
JP2012145039A2012-08-02
JP2012036862A2012-02-23
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (East 8F, TORANOMON TWIN BLDG. 10-1 Toranomon 2-chome, Minato-k, Tokyo 01, 〒1050001, JP)
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