Device for heating and air-conditioning the passenger compartmen

Refrigeration – With vehicle feature – Occupant-type vehicle

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Details

623246, B60H 132

Patent

active

057222509

ABSTRACT:
The invention concerns a device for the heating and air-conditioning of the passenger compartment of a motor vehicle with an electric motor. The device comprises a main loop containing an internal heat exchanger suitable for exchanging heat with a flow of air sent into the passenger compartment an external heat exchanger suitable for exchanging heat with a flow of air external to the passenger compartment and a pressure reducing valve interposed between the internal heat exchanger and the external heat exchanger; a secondary loop containing a compressor and an evaporator connected to a cooling circuit for the power circuit associated with the electric motor of the vehicle, and a valve for switching between the main loop and the secondary loop in order to cause the refrigerating fluid to circulate in the main loop in a chosen direction of circulation,

REFERENCES:
patent: 4920757 (1990-05-01), Gazes et al.
patent: 4944156 (1990-07-01), Yamamoto et al.
patent: 5239838 (1993-08-01), Tressler
patent: 5275008 (1994-01-01), Song et al.
patent: 5341868 (1994-08-01), Nakata
patent: 5488837 (1996-02-01), Sekino et al.
patent: 5600962 (1997-02-01), Aizawa et al.
French Search Report Jul. 26, 1996.

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