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Patent Searching and Data


Title:
AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2019/207717
Kind Code:
A1
Abstract:
In this air conditioner, a compressor, a flow passage switching section, a condenser, an expansion valve, and an evaporator are connected by piping to form a refrigerant circuit. The air conditioner is provided with a pressure pulsation suppression mechanism for suppressing the propagation of pressure pulsations generated by the expansion valve when a refrigerant flows through the piping. Among first piping which is connected, on a line extending from the axis of the valve body of the expansion valve, to the expansion valve, and second piping which is connected to the expansion valve on a line intersecting the axis of the valve body, only the first piping has the pressure pulsation suppression mechanism connected thereto. The portion where the pressure pulsation suppression mechanism and the first piping are connected is configured so that the inner diameter of a refrigerant flow passage varies from small to large in the direction away from the expansion valve.

Inventors:
WATANABE, Masayuki (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
TADA, Yoshiyuki (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
Application Number:
JP2018/017022
Publication Date:
October 31, 2019
Filing Date:
April 26, 2018
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORPORATION (7-3 Marunouchi 2-chome, Chiyoda-ku Tokyo, 10, 〒1008310, JP)
International Classes:
F25B41/00; F25B1/00
Foreign References:
JPH0626738A1994-02-04
JPH1019420A1998-01-23
JP2003202160A2003-07-18
JPH03113250A1991-05-14
JP2011047610A2011-03-10
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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