Air-conditioning and heating device for passenger compartment of motor vehicle, has heat exchanger provided in air heating circuit that circulates coolant, where coolant acts cold coolant cooled by refrigerant to cool compartment

摘要

The device has a heat engine (10) including a cooling circuit (16). A passenger compartment heating circuit circulates a coolant of the engine. An air conditioning circuit is provided with an air pressure regulator (42). A common air or coolant heat exchanger (50) is provided in the air conditioning circuit and the air heating circuit, where the coolant acts a hot coolant from the engine to heat a passenger compartment. The coolant acts as a cold coolant cooled by a refrigerant to cool the compartment. The heat exchanger is located in the compartment of a vehicle.