Title:
車両用空気調和装置
Document Type and Number:
Japanese Patent JP6418787
Kind Code:
B2
Abstract:
There is disclosed a vehicular air-conditioning device of a so-called heat pump system which eliminates or decreases noise generated when an opening/closing valve opens at a changing time of an operation mode. The vehicular air-conditioning device executes a heating mode to let a refrigerant discharged from a compressor 2 radiate heat in a radiator 4, decompress the refrigerant by which heat has been radiated, and then let the refrigerant absorb heat in an outdoor heat exchanger 7, and a dehumidifying and heating mode to open a solenoid valve 22 in a state of the heating mode, decompress at least a part of the refrigerant flowing out from the radiator and then let the refrigerant absorb heat in a heat absorber 9. When the heating mode changes to the dehumidifying and heating mode, the controller decreases a radiator pressure or a pressure difference before and after the solenoid valve to a predetermined value or less, and then opens the solenoid valve 22.
Inventors:
Kenichi Suzuki
Miyakoshi Ryu
Kohei Yamashita
Hidenori Takei
Miyakoshi Ryu
Kohei Yamashita
Hidenori Takei
Application Number:
JP2014108306A
Publication Date:
November 07, 2018
Filing Date:
May 26, 2014
Export Citation:
Assignee:
Sanden Holdings Corporation
International Classes:
B60H1/32
Domestic Patent References:
| JP2013180743A | ||||
| JP2003279180A | ||||
| JP2014088151A | ||||
| JP2014088154A | ||||
| JP2013193610A | ||||
| JP2013256230A | ||||
| JP7164868A | ||||
| JP2006069332A |
Attorney, Agent or Firm:
Kei Amekasa