Abstract: A heating and/or air conditioning installation for a motor vehicle includes a wall having a through hole. A temperature sensor has a heat sensitive element lying in a housing, which may for example be formed in an evaporator of the air conditioning installation. The sensor has protruding connecting wires surrounded by a sheath, and is attached through the hole in the wall by a fastening device. The fastening device comprises a tubular body portion adapted to be removably held fast in the hole, together with a sleeve portion joined to the inside of the body portion and having a passage through which the sheath passes. The sleeve portion has a narrow end which grips the sheath, and a wide end facing towards the heat sensitive element and affording some freedom of lateral movement to the connecting wires.

Abstract: A hollowed plate for a heat exchanger with fluid flow tubes, formed with holes into which are engaged and tightly fitted the ends of tubes of the exchanger, and being of general bulging or deflected shape, for improving the compressive strength of said hollowed plate, particularly in a radiator for the cooling circuit of a motor vehicle engine.