Vehicle heating installation

Claim 1

IN A HEATING AND VENTILATING SYSTEM FOR A MOTOR VEHICLE HAVING A BODY COMPRISING ENCLOSURE MEANS, SAID VEHICLE FURTHER HAVING AN AIR-COOLED, INTERNAL COMBUSTION ENGINE PROVIDED WITH COOLING AIR BLOWER MEANS AND AN EXHAUST-GAS MUFFLER MEANS, AND SAID HEATING AND VENTILATING SYSTEM INCLUDING ITS OWN BLOWER MEANS, THE IMPROVEMENT ESSENTIALLY CONSISTING OF CONSTRUCTING SAID MUFFLER MEANS AS A HEAT-EXCHANGER HAVING A HEAT-EXCHANGE PART AND LOCATED DIRECTLY BELOW THE BLOWER MEANS OF THE HEATING AND VENTILATING SYSTEM, AND MEANS IN SAID VENTILATING SYSTEM INCLUDING THE BLOWER MEANS THEREOF FOR SUPPLYING FRESH AIR ALONG SAID HEAT-EXCHANGER PART OF SAID MUFFLER MEANS TO THEREBY HEAT THE FRESH AIR BY THE THERMAL ENERGY CONTAINED WITHIN THE EXHAUST GASES, SAID LAST-MENTIONED BLOWER MEANS BEING LOCATED SUBSTANTIALLY COAXIALLY TO THE COLLING AIR BLOWER MEANS DIRECTLY IN FRONT OF SAID COOLINGAIR BLOWER MEANS AND FLEXIBLE SHAFT MEANS FOR DRIVING THE BLOWER MEANS OF SAID HEATING AND VENTILATING SYSTEM BY SAID COOLING AIR BLOWER MEANS, AND AIR PASSAGE MEANS CONNECTING SAID HEAT-EXCHANGER AND SAID ENCLOSURE MEANS.