Title:
AIR CONDITIONER FOR VEHICLE
Document Type and Number:
Japanese Patent JP2017013635
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To eliminate or reduce a noise generating when leaving open a shut-off valve (solenoid valve) at change-over of an operation mode in a heat pump system air conditioner for vehicle.SOLUTION: An air conditioner for vehicle has a dehumidifying/heating mode which brings a coolant to heat release using a radiator 4, reduces pressure and brings to heat absorbing by a heat absorber 9 and an outdoor heat exchanger 7, and a cooling mode which brings the coolant to heat release using the outdoor heat exchanger, reduces pressure and brings to heat absorbing by the heat absorber. The air conditioner is equipped with the solenoid valves 21 and 22 opened at the dehumidifying/heating mode, and those valves are opened when switching the mode from cooling to dehumidifying/heating after decreasing the differential in pressure before and after each solenoid valve.SELECTED DRAWING: Figure 1
Inventors:
SUZUKI KENICHI
MIYAKOSHI TATSU
YAMASHITA KOHEI
MIYAKOSHI TATSU
YAMASHITA KOHEI
Application Number:
JP2015132541A
Publication Date:
January 19, 2017
Filing Date:
July 01, 2015
Export Citation:
Assignee:
SANDEN AUTOMOTIVE CLIMATE SYSTEMS CORP
International Classes:
B60H1/22; B60H1/32; F25B41/00
Domestic Patent References:
| JP2014094671A | 2014-05-22 | |||
| JP2012250708A | 2012-12-20 | |||
| JP2003279180A | 2003-10-02 | |||
| JP2014088154A | 2014-05-15 | |||
| JP2011126409A | 2011-06-30 | |||
| JP2014062675A | 2014-04-10 | |||
| JP2013180743A | 2013-09-12 |
Attorney, Agent or Firm:
Kei Amekasa