Air conditioning apparatus for vehicle

Heat exchange – With timer – programmer – time delay – or condition responsive... – Having heating and cooling capability

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Details

165 42, 62198, 62526, 429624, B60H 300

Patent

active

060477709

ABSTRACT:
In an air conditioning apparatus for a vehicle, a water/refrigerant heat exchanger is disposed at a refrigerant discharge side of a compressor of a refrigerant cycle, and a cooling unit for cooling a heat-generating unit with refrigerant having an intermediate pressure of the refrigerant cycle is disposed at a downstream refrigerant side of the water/refrigerant heat exchanger. The air conditioning apparatus includes an evaporator and a hot-water type heater core disposed in an air conditioning duct. In a cooling water circuit, an engine, a radiator and an electrical pump are disposed in addition to the water/refrigerant heat exchanger and the hot-water type heater core. Thus, refrigerant absorbs heat generated in the heat-generating unit, and is heat-exchanged with cooling water in the water/refrigerant heat exchanger after passing through the compressor. As a result, the heat-generating unit can be cooled sufficiently even when outside air temperature is high in the summer, and heating capacity can be effectively improved using heat generated from the heat-generating unit in the winter.

REFERENCES:
patent: 5501267 (1996-03-01), Iritani et al.
patent: 5641016 (1997-06-01), Isaji et al.
patent: 5899086 (1999-05-01), Noda et al.

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