Vehicle air-conditioning system with heat exchanger having integ

Details Vehicle air-conditioning system with heat exchanger having integ Vehicle air-conditioning system with heat exchanger having integ

1999-01-22

2000-03-14

Jeffery, John A.

Electric heating

Heating devices

Combined with diverse-type art device

219505, 392495, 392496, 165299, 165300, 165 41, 237 123B, 236 37, B60H 122

Patent

active

060375671

ABSTRACT:
A vehicle air-conditioning system includes electric heating devices to accelerate a rise in temperature of air for heating a passenger compartment by accelerating a rise in temperature of warm water used to heat the air and by directly heating the air. Electric heating devices are built into a heat exchanger for heating so that the devices can release heat into surrounding air through radiating fins. When the system is in a heating operation region and the temperature of warm water available to flow through the heat exchanger is below a set temperature T.sub.2, the electric heating devices are turned on. A blower for blowing heating air into a passenger compartment through the heat exchanger is stopped, and a warm water valve is opened to allow the warm water to flow through the heat exchanger, whereupon heat from the electric heating devices is released through the radiating fins into the warm water inside the heat exchanger. When the temperature of the warm water rises above the set temperature T.sub.2, the blower is started, and heat from the electric heating devices is released through the radiating fins into the air blown by the blower.

REFERENCES:
patent: 1863882 (1932-06-01), Scharf
patent: 2019991 (1935-11-01), Nilson
patent: 3658244 (1972-04-01), Caldwell
patent: 4700888 (1987-10-01), Samulak
patent: 5606641 (1997-02-01), Bucaille

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