Vehicle air conditioning unit

Claim 1

IN AN AIR CONDITIONING UNIT, THE COMBINATION OF A HOUSING, A SHAFT MOUNTED CENTRALLY IN SAID HOUSING, A COMPRESSOR FORMED WITHIN THE HOUSING AND DRIVEN BY SAID SHAFT, EXTENSIONS ON SAID SHAFT PROJECTING OUTWARDLY FROM OPPOSITE SIDES OF SAID HOUSING, A REFRIGERATION UNIT HAVING A CLOSED REFRIGERANT CIRCULATING CONDUIT SYSTEM THROUGH WHICH A REFRIGERANT FLOWS AND WHICH SYSTEM COMMUNICATES WITH SAID COMPRESSOR WHEREBY SAID REFRIGERANT IS COMPRESSED, SAID REFRIGERATION UNIT INCLUDING AN EVAPORATOR HAVING EVAPORATOR COILS, AND AN EXPANSION VALVE MEANS IN THE REFRIGERATION CIRCUIT FORMING PART OF SAID CONDUIT SYSTEM FOR THE REFRIGERANT; A CLOSED CHAMBER HOUSING SAID EVAPORATOR, SAID CHAMBER HAVING AN INLET AND OUTLET CONNECTED TO A PRIMARY HEAT EXCHANGER BY A LIQUID CIRCULATING CONDUIT THROUGH WHICH A LIQUID IS CIRCULATED, AN IMPELLER IN SAID CHAMBER CIRCULATING THE LIQUID OVER THE EVAPORATOR AND THROUGH THE PRIMARY HEAT EXCHANGER AND ITS CONDUITS, SAID IMPELLER BEING MOUNTED ON AND DRIVEN BY ONE OF THE EXTENSIONS OF SAID SHAFT, AN AIR IMPELLER DRIVEN BY THE OTHER EXTENSION OF SAID SHAFT AND DIRECTING AIR OVER THE CONDENSER MOUNTED ADJACENT THERETO AND A DRIVING PULLEY MOUNTED ON SAID SHAFT.