Air conditioning apparatus for vehicle

Title: Air conditioning apparatus for vehicle

Related Patent Categories: Heat Exchange, With Timer, Programmer, Time Delay, Or Condition Responsive Control, Having Heating And Cooling Capability, Vehicle Installation, Plural Temperature Regulators For Plural Zones

Brief Patent Description - Full Patent Description - Patent Claims

The Patent Description & Claims data below is from USPTO Patent Application 20060225875, Air conditioning apparatus for vehicle.

1. An air conditioning apparatus for a vehicle having a passenger compartment, said air conditioning apparatus comprising: an air conditioning case having at one end thereof an inside-air suction port for sucking inside air and an outside-air suction port for sucking outside air and at the other end at least a first air opening portion for blowing air toward a lower portion of the passenger compartment and a second opening portion for blowing air toward an inner surface of a windshield; a partition member for partitioning an interior of said air conditioning case into a first air passage extending from said inside-air suction port to said first air opening portion and a second air passage extending from said outside-air suction port to said second air opening portion; a blower for blowing air in said first air passage and said second air passage from said one end side to the other end side; a cooling heat exchanger disposed in said first air passage and said second air passage, for cooling air passing through said first air passage and said second air passage; a temperature sensor disposed at a side of said first air passage, for detecting a cooling temperature of said cooling heat exchanger; adjusting means for adjusting a refrigerant amount flowing into said cooling heat exchanger; and adjusting control means for comparing a cooling temperature detected by said temperature sensor and a set temperature and for controlling operation of said adjusting means.

2. The air conditioning apparatus according to claim 1, wherein: a heating heat exchanger disposed in said first air passage and said second air passage at a downstream side of said cooling heat exchanger, for heating air passing through said first air passage and said second air passage.

3. The air conditioning apparatus according to claim 1, wherein: said cooling heat exchanger is an evaporator of a refrigerant cycle; and said refrigerant cycle includes a compressor for compressing refrigerant, a condenser for condensing refrigerant from said compressor, a decompression unit for decompressing refrigerant from said condenser, and the evaporator for evaporating refrigerant from said decompression unit.

4. The air conditioning apparatus according to claim 1, wherein said temperature sensor is disposed in said first air passage at a position immediately downstream from said cooling heat exchanger.

5. The air conditioning apparatus according to claim 1, wherein said adjusting control means control said adjusting means in such a manner that, cooling operation due to said cooling heat exchanger is performed when temperature detected by said temperature sensor is higher than predetermined temperature, and the cooling operation due to said cooling heat exchanger is stopped when the temperature detected by said temperature sensor is lower than the predetermined temperature.

6. The air conditioning apparatus according to claim 1, further comprising: an inside air/outside air switching box for setting any one of: an inside air/outside air double laminar mode in which inside air is introduced into said first air passage and outside air is introduced into said second air passage; an outside air mode in which outside air is introduced into both said first air passage and said second air passage; and an inside air mode in which inside air is introduced into both said first air passage and said second air passages.

7. The air conditioning apparatus according to claim 6, wherein: said partition member has a communication path through which said first air passage and said second air passage communicate with each other; during said inside air/outside air double laminar mode, said communication path is closed so that inside air from said inside-air suction port is introduced into said first air opening portion through said first air passage and outside air from said outside-air suction port is introduced into said second opening portion through said second air passage; during said inside air mode, said communication path is opened so that inside air from said inside air suction port is introduced into said second air passage while being introduced into said first air passage through said communication path.

Brief Patent Description - Full Patent Description - Patent Claims

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Industry Class:
Heat exchange

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