摘要:
An automotive air conditioner which conditions air making use of radiation of heat of a condenser and absorption of heat of an evaporator effectively. The evaporator 207 and the condenser 203 are disposed in a duct 100. An condenser disposed in a duct has a heat exchanging section in which heat exchange is performed between refrigerant and draft air. The heat exchanging section is divided into an upper stream area portion, a middle stream area portion and a lower stream area portion, and a temperature sensitive tube of a subcooling control valve is held in contact with a refrigerant passageway which interconnects the middle and lower stream area portions. The subcooling control valve adjusts the opening of a throttle portion thereof so that the subcooling degree on the upstream of the lower stream area portion where the temperature sensitive tube contacts may be a predetermined value (2.degree. to 10.degree. C.).
摘要:
The evaporator and the condenser are disposed in a duct. First bypass passage is disposed at the side of the condenser and first air mixing damper rotates to control air bypassing amount. Further second bypass passage is formed at the side of the evaporator and second mixing damper rotates to control air bypassing amount. Cooling rate at the evaporator and heating rate at the condenser are varied so that air adjusted in proper temperature is generated and discharged from each outlets into a room. An outside heat exchanger is disposed the outside of the duct. Refrigerant flow is randomly switched among the outside heat exchanger, the evaporator and the condenser so that cooling, heating, dehumidifying, dehumidified-heating and defrosting operations are performed.
摘要:
A vehicle is provided with both an electric motor and an internal combustion engine for operating the vehicle. The vehicle is further provided with a duct for discharging air into a cabin of the vehicle for controlling the temperature of the air as discharged. A heater core is arranged in the duct for heating the air passing through the duct. A sensor 9 is provided for detection of the temperature of the cooling water of the engine. When the vehicle is operated by the electric motor, the heat taken from the engine cooling water is supplied to the heat exchanger for heating the air passing through the duct when the temperature of the engine cooling water is higher than a predetermined value.
摘要:
The evaporator and the condenser are disposed in a duct. First bypass passage is disposed at the side of the condenser and first air mixing damper rotates to control air bypassing amount. Further second bypass passage is formed at the side of the evaporator and second mixing damper rotates to control air bypassing amount. Cooling rate at the evaporator and heating rate at the condenser are varied so that air adjusted in proper temperature is generated and discharged from each outlets into a room. An outside heat exchanger is disposed the outside of the duct. Refrigerant flow is randomly switched among the outside heat exchanger, the evaporator and the condenser so that cooling, heating, dehumidifying, dehumidified-heating and defrosting operations are performed.
摘要:
In a vehicle cockpit module assembly having at least an air conditioner disposed inside a dashboard, a protrusion piece for determining an arrangement position of an air-conditioning unit of the air conditioner within the dashboard is provided at the air-conditioning unit. A front load support portion for supporting a front side load of the air-conditioning unit is constructed by a drain pipe of the air-conditioning unit, and a rear load support portion for supporting a rear side load of the air-conditioning unit is constructed by rear foot ducts of the air-conditioning unit. Accordingly, in the cockpit module assembly, the air conditioner can be stably supported in the vehicle.
摘要:
In a method for calculating torque for a variable capacity type compressor provided in a refrigeration circuit and driven by an engine to compress and discharge refrigerant to be circulated through a heat exchanger in the refrigerant circuit, a rotational speed of the compressor is calculated, a quantity of refrigerant discharged from the compressor and pressure of refrigerant in high-pressure side are calculated, a capacity of the discharged refrigerant during operation of the compressor is calculated based on the calculated discharged refrigerant quantity and the calculated rotational speed, and the torque is calculated based on the calculated refrigerant pressure and the calculated capacity.
摘要:
In idling speed control system for an engine, for use with a refrigeration circuit for circulating refrigerant through a variable capacity type compressor driven by the engine, a condenser and an evaporator, an idling adjuster is provided to adjust a quantity of an air flow bypassing a throttle valve disposed in a suction passage of the engine and sucked into a combustion chamber of the engine. The control system is arranged to detect Numerical information required for calculating a first influence degree given to an output of the engine by the compressor during operation of the refrigeration circuit, to estimate, in accordance with the numerical information, a second influence degree which will be given to the engine output by the compressor under condition that the engine drives the compressor at a predetermined idling speed and the refrigeration circuit is maintaining cooling ability in a predetermined state. The control system is further arranged to output a control signal dependent on the estimated second influence degree to the idling adjuster prior to idling operation of the engine and for rendering the idling adjuster adjusting the bypassed air flow quantity in accordance with the estimated second influence degree.
摘要:
Heat is absorbed from a first heat emitter and a second heat emitter is cooled by an adsorption type refrigerator operating by that absorbed heat. When the amount of emission of heat of the first heat emitter exceeds a predetermined amount of heat, the heat absorbed in the heat medium by a first heat collector is discharged to the outside air by an outdoor unit without being supplied to the adsorbent of the refrigerator. On the other hand, when the amount of emission of heat of the first heat emitter falls below a predetermined amount, the heat medium which had been supplied to a first heat exchanger for heating the adsorbent is switched to return to the first heat collector without flowing to the outdoor unit.
摘要:
The evaporator and the condenser are disposed in a duct. First bypass passage is disposed at the side of the condenser and first air mixing damper rotates to control air bypassing amount. Further second bypass passage is formed at the side of the evaporator and second mixing damper rotates to control air bypassing amount. Cooling rate at the evaporator and heating rate at the condenser are varied so that air adjusted in proper temperature is generated and discharged from each outlets into a room. An outside heat exchanger is disposed the outside of the duct. Refrigerant flow is randomly switched among the outside heat exchanger, the evaporator and the condenser so that cooling, heating, dehumidifying, dehumidified-heating and defrosting operations are performed.
摘要:
A compressor is prevented from the problem of seizure at start-up even when return of lubricant to the compressor is delayed. In such a refrigerant cycle, a bypass passage bypasses an expansion member and an evaporator. The bypass passage opens for a predetermined time when the compressor starts. The predetermined time is dependent upon external temperature, the compressor speed, compressor capacity, etc.