Vehicle air conditioner
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United States of America Patent
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Nov 27, 2018
Grant Date -
Aug 27, 2015
app pub date -
Sep 5, 2013
filing date -
Sep 18, 2012
priority date (Note) -
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Abstract
A vehicle air conditioner includes a heat pump cycle and a refrigerant-circuit controller. The heat pump cycle includes an inside heat exchanger and a refrigerant-circuit switching device. The inside heat exchanger performs heat exchange between a refrigerant and a blown air that is to be blown into a vehicle compartment. The refrigerant-circuit switching device switches between a refrigerant circuit of a cooling mode and a refrigerant circuit of a non-cooling mode. The refrigerant-circuit controller selects the cooling mode or the non-cooling mode based on an air-conditioning load, the refrigerant-circuit controller controlling an operation of the refrigerant-circuit switching device. Upon selecting the non-cooling mode, the refrigerant-circuit controller starts performing a cooling-mode unallowable control in which the refrigerant circuit of the cooling mode is prohibited from being selected regardless of the air-conditioning load.
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