Oil-radiator-containing water box for a motor vehicle heat exchanger

Claim 1

In a water box for a motor vehicle heat exchanger, said box including an oil radiator therein having an oil inlet tube and an oil outlet tube which pass in sealed manner outwardly through two corresponding openings through the side wall of the water box between the inside and outside faces thereof, the improvement comprising said openings being considerably larger than the outside diameter of said oil inlet and outlet tubes for a tilting introduction of the inlet and outlet tubes outwardly therethrough, said tubes extending beyond the outside face of the side wall, and means for closing said openings and mounting said tubes, wherein the width of the water box is less than the overall width of the oil radiator and its oil inlet/outlet tubes in the same direction, said means comprising two add-on plates each of which includes an orifice for passing an oil inlet/outlet tube, and each of which is received over a different one of said tubes subsequent to introduction of said tubes through said openings, said add-on plates each being fixed to the outside face of the water box about the edge of the corresponding opening through the water box to define a continuation of the side wall of the water box and to mount the corresponding tube on the water box.