Title:
VEHICLE AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2019/181312
Kind Code:
A1
Abstract:
[Problem] To provide a vehicle air conditioner which prevents reduction in the oil circulation rate in a cooling circuit when adjusting the battery temperature and which can prevent reduction in compressor reliability.
[Solution] A battery temperature adjustment device 61 comprises a refrigerant-heat medium heat exchanger 64, branch piping 72 which extends from a branch member B2 to the refrigerant-heat medium heat exchanger, and an auxiliary expansion valve 73 which is provided in the branch piping and which is for reducing pressure of the refrigerant flowing into the refrigerant-heat medium heat exchanger. An in-cabin expansion valve 8 is arranged in refrigerant piping 13B, nearer to the branching member B2 than to the heat absorber 9, and the auxiliary expansion valve 73 is arranged in the branching piping 72, nearer to the branching member B2 than to the refrigerant-heat medium heat exchanger.
Inventors:
ISHIZEKI TETSUYA (JP)
TOYAMA TAKASHI (JP)
SEKIGUCHI KAZUKI (JP)
TOYAMA TAKASHI (JP)
SEKIGUCHI KAZUKI (JP)
Application Number:
PCT/JP2019/005637
Publication Date:
September 26, 2019
Filing Date:
February 15, 2019
Export Citation:
Assignee:
SANDEN AUTOMOTIVE CLIMATE SYSTEMS CORP (JP)
International Classes:
B60H1/22; B60H1/32; B60H3/00; B60K1/04; B60K11/04; B60L1/00; B60L3/00; F25B1/00; F25B5/02
Foreign References:
| JP2014066410A | 2014-04-17 | |||
| JP2015114049A | 2015-06-22 | |||
| JP2014074516A | 2014-04-24 |
Download PDF:
Previous Patent: CONTROL SYSTEM FOR VEHICLE
Next Patent: COMBINATION SEARCH SYSTEM, INFORMATION PROCESSING DEVICE, METHOD, AND PROGRAM
Next Patent: COMBINATION SEARCH SYSTEM, INFORMATION PROCESSING DEVICE, METHOD, AND PROGRAM