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Patent Searching and Data


Title:
VEHICLE AIR CONDITIONING DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/179596
Kind Code:
A1
Abstract:
Provided is a vehicle air conditioning device capable of suppressing the occurrence of noise and fluid return to a compressor caused by sudden boiling inside an accumulator. The vehicle air conditioning device executes: a heating mode in which an electromagnetic valve (17) is closed, an electromagnetic valve (21) is opened, refrigerant from the compressor (2) has heat dissipated therefrom by a radiator (4), the refrigerant is decompressed by an outdoor expansion valve (6), and then the refrigerant is caused to absorb heat, by an outdoor heat exchanger (7), and flows to the accumulator (12); and a dehumidifying cooling mode in which the electromagnetic valve (17) is opened, the electromagnetic valve (21) is closed, and the coolant is decompressed by an indoor expansion valve (8) and then caused to absorb heat, by a heat absorber, and flow to the accumulator. The electromagnetic valve (21) is opened for a prescribed period when changing from the heating mode to the dehumidifying cooling mode.

Inventors:
ISHIZEKI, Tetsuya (20 Kotobuki-cho Isesaki-sh, Gunma 02, 〒3728502, JP)
SEKIGUCHI, Kazuki (20 Kotobuki-cho Isesaki-sh, Gunma 02, 〒3728502, JP)
YAMASHITA, Kohei (20 Kotobuki-cho Isesaki-sh, Gunma 02, 〒3728502, JP)
MIYAKOSHI, Ryo (20 Kotobuki-cho Isesaki-sh, Gunma 02, 〒3728502, JP)
Application Number:
JP2017/014889
Publication Date:
October 19, 2017
Filing Date:
April 05, 2017
Export Citation:
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Assignee:
SANDEN AUTOMOTIVE CLIMATE SYSTEMS CORPORATION (20 Kotobuki-cho, Isesaki-shi Gunma, 02, 〒3728502, JP)
International Classes:
B60H1/22; B60H1/32; F25B1/00
Foreign References:
JP2014094671A2014-05-22
JP2005514253A2005-05-19
JPH0428955A1992-01-31
JP2000018739A2000-01-18
JP2013139245A2013-07-18
JP2016223705A2016-12-28
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