Patent ID: 11865898
Assignee: MAZDA MOTOR CORPORATION
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 13:
14. The air conditioner for the vehicle of claim 13, wherein the coolant compressed by said compressor passes through said heat exchanger for heating and then passes through said external heat exchanger, passing of the coolant through said expansion valve for cooling and said heat exchanger for cooling and passing of the coolant through said expansion valve for battery and said heat exchanger for battery are respectively executed after the coolant passes through said external heat exchanger, an opening-degree adjustable type of expansion valve for heating is provided in a coolant flow path between said heat exchanger for heating and said external heat exchanger such that an opening degree thereof is capable of being fully open, and when heating is executed, the opening degree of said expansion valve for heating is adjusted at a small opening degree, whereby the temperature and the pressure of the coolant are lowered by the coolant's passing through the expansion valve for heating.