Title:
VEHICULAR AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2015/041209
Kind Code:
A1
Abstract:
[Problem] To provide a vehicular air conditioner in which the heating capability of a heater in a dehumidifying-cooling mode is guaranteed, without increasing the refrigerant flow rate to a heat sink. [Solution] After a refrigerant discharged from a compressor (2) dissipates heat in a heat radiator (4) and an outdoor heat exchanger (7) and the heat-dissipated refrigerant is depressurized, a dehumidifying-cooling mode is executed in which heat is absorbed by a heat sink (9). An injection circuit (40) is provided to divert some of the refrigerant exiting the heat radiator (4) back to the compressor (2), and in the dehumidifying-cooling mode, the injection circuit (40) is activated and refrigerant is returned to the compressor (2) when a prescribed radiator capability insufficiency condition is fulfilled such that the heating capability of the heat radiator (4) is insufficient, and/or when a prescribed low-outdoor-air-temperature startup condition is fulfilled such that startup occurs at a low outdoor air temperature.
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Inventors:
SUZUKI KENICHI (JP)
MIYAKOSHI RYO (JP)
SHIGETA MEGUMI (JP)
MIYAKOSHI RYO (JP)
SHIGETA MEGUMI (JP)
Application Number:
PCT/JP2014/074416
Publication Date:
March 26, 2015
Filing Date:
September 16, 2014
Export Citation:
Assignee:
SANDEN CORP (JP)
International Classes:
B60H1/22; F25B1/00
Domestic Patent References:
| WO2013121844A1 | 2013-08-22 | |||
| WO2012118198A1 | 2012-09-07 |
Foreign References:
| JP2013086606A | 2013-05-13 | |||
| JP2001324237A | 2001-11-22 | |||
| JP2013095347A | 2013-05-20 | |||
| JP2011111140A | 2011-06-09 |
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