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Patent Searching and Data


Title:
ROTARY COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2019/171508
Kind Code:
A1
Abstract:
Provided is a rotary compressor according to the present invention comprising a first injection flow path for injecting a refrigerant into a first compression chamber, a second injection flow path for injecting a refrigerant into a second compression chamber, a first check valve provided in the first injection flow path, and a second check valve provided in the second injection flow path. In the first valve body of the first check valve, the pressure of the refrigerant present on the side farther from the first compression chamber than the first valve body in the first injection flow path acts in the direction to open the first injection flow path, and the pressure of the refrigerant in the first compression chamber acts in the direction to close the first injection channel. In the second valve body of the second check valve, the pressure of the refrigerant present on the side farther from the second compression chamber than the second valve body in the second injection flow path acts in the direction to open the second injection flow path, and the pressure of the refrigerant in the second compression chamber acts in the direction to close the second injection flow path.

Inventors:
ISHIBE, Yusaku (1-13-5 Kudankita, Chiyoda-k, Tokyo 73, 〒1020073, JP)
Application Number:
JP2018/008815
Publication Date:
September 12, 2019
Filing Date:
March 07, 2018
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORPORATION (7-3 Marunouchi 2-chome, Chiyoda-ku Tokyo, 10, 〒1008310, JP)
International Classes:
F04C18/356; F04C29/04
Domestic Patent References:
WO2018003016A12018-01-04
Foreign References:
JPH1113664A1999-01-19
JPH11107950A1999-04-20
JPH11304037A1999-11-05
JPH05133368A1993-05-28
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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