A method of controlling a cooling device capable of stably cooling a heat source is provided. A cooling device (1) includes a first passage (21, 22, 34, 36, 24 to 27) through which a coolant discharged from a compressor (12) flows into a cooling unit (30) ...

An automotive air conditioning system (1) comprising: ¢ an air cooling circuit (4) including a compressor (7), a condenser (8), an expansion valve (9) and an evaporator (10), fluidically connected to be flowed, during operation, by a heat transfer fluid, ...

The control of the coolant flow is accomplished through valving or by adjusting the pumping speed of a water pump and a water motor, or a combination of all three elements. During normal operation, where engine cooling is not required, the speed control co...

A dual evaporator air conditioning system (20) and method for use therewith to cool air in front (10) and rear (12) portions of a cabin (14) of a vehicle (16). The dual evaporator air conditioning system (20) includes primary (28) and auxiliary (30) HVAC u...

The regulated heater (10) for a motor vehicle interior has a first circuit for a coolant with an engine (14) and a cooling reservoir (16). There is a second circuit (20) for a heat exchange liquid with a condenser (24) in thermal exchange with the first ci...

A vehicle control system capable of achieving improvement in fuel efficiency by performing optimum control over an engine in consideration of power load applied onto an engine by auxiliary machines. An engine control amplifier 2 includes: a temperature-dep...

The heating/cooling circuit has an evaporator (14) for cooling the air fed to the automobile passenger space, a heat exchanger (16) for heating the air fed to the passenger space and an external heat exchanger (22), associated with a compressor (24) for su...

In a refrigerant cycle system having a hot gas heater function, a valve device includes a solenoid valve (15) for opening and closing a communication between a compressor (10) and a condenser (19), a differential pressure valve (16) opened by a pressure di...