Expansion tank and water box device for heat exchanger, such as a radiator of a motor vehicle
AssigneeValeo
InventorsPatrick Cadars, Bruno Hellouin de Cenival
Life of this patent
Estimating the term…
Abstract
An expansion tank and water box device for a heat exchanger with a nest of parallel tubes, such as a radiator of a motor vehicle, in which the water box housed inside the expansion tank is maintained by the assembly of the tank with the hollowed plate through which extend the ends of the tubes. Ribs are interposed between the water box and the expansion tank. Said ribs depend, for instance, from the expansion tank.
Claims45
In a heat exchanger for an automotive vehicle, said heat exchanger including a plurality of substantially parallel heat exchanging tubes and a collector plate having a plurality of openings, each of said openings being traversed, respectively, by an end of one of said tubes for the purpose of mounting the same, the combination of:
- (a) an expansion tank;
- (b) said expansion tank having a peripheral edge portion sealingly connected to said collector plate;
- (c) a water box disposed inside said expansion tank, said water box comprising a partition separate from said expansion tank;
- (d) said partition having a hollow cross sectional profile and two opposed longitudinal edges engaging said collector plate on each side of said tube ends, respectively, to define a collector chamber between said partition and said collector plate;
- (e) said partition also forming a compensation chamber between said water box and said expansion tank;
- (f) means for holding said partition in place between said expansion tank, and said collector plate when said expansion tank and collector plate are sealingly connected;
- and
- (g) said means for holding including at least one rib interposed between said expansion tank and said partition.
In a heat exchanger for an automotive vehicle, said heat exchanger including a plurality of substantially parallel heat exchanging tubes and a collector plate having a plurality of openings, each of said openings being traversed, respectively, by an end of one of said tubes for the purpose of mounting the same, the combination of:
- (a) an expansion tank;
- (b) said expansion tank having a peripheral edge portion sealingly connected to said collector plate;
- (c) a partition disposed within said expansion tank, said partition being separate from said expansion tank;
- (d) said partition dividing the space within said expansion tank into a collector chamber and a compensation chamber;
- (e) said collector chamber enclosing said tube ends adjacent to said collector plate;
- (f) said compensation chamber being adjacent to said expansion tank;
- (g) means for holding said partition in place between said expansion tank and said collector plate when said expansion tank is sealingly connected to said collector plate;
- and
- (h) said means for holding including at least first and second transversely spaced apart integral ribs protruding from said partition in a direction away from said collector chamber for engaging respective portions of the expansion tank to brace said expansion tank against deformation when internal pressure is applied therein.
In a heat exchanger for an automotive vehicle, said heat exchanger including a plurality of substantialy parallel heat exchanging tubes and a collector plate having a plurality of openings, each of said openings being traversed, respectively, by an end of one of said tubes for the purpose of mounting the same, the combination of:
- (a) an expansion tank;
- (b) said expansion tank having a peripheral edge portion sealingly connected to said collector plate;
- (c) a water box disposed inside said expansion tank, said water box comprising a partition separate from said expansion tank;
- (d) said partition having a hollow cross sectional profile and two opposed longitudinal edges engaging said collector plate on each side of said tube ends, respectively, to define a collector chamber between said partition and said collector plate;
- (e) said partition also forming a compensation chamber between said water box and said expansion tank;
- (f) means for holding said partition in place between said expansion tank, and said collector plate when said expansion tank and collector plate are sealingly connected;
- and
- (g) a plurality of longitudinal ribs being interposed between said expansion tank and said partition.
In a heat exchanger for an automotive vehicle, said heat exchanger including a plurality of substantially parallel heat exchanging tubes and a collector plate having a plurality of openings, each of said openings being traversed, respectively, by an end of one of said tubes for the purpose of mounting the same, the combination of:
- (a) an expansion tank;
- (b) said expansion tank having a peripheral edge portion sealingly connected to said collector plate;
- (c) a water box disposed inside said expansion tank, said water box comprising a partition separate from said expansion tank;
- (d) said partition having a hollow cross sectional profile and two opposed longitudinal edges engaging said collector plate on each side of said tube ends, respectively, to define a collector chamber between said partition and said collector plate;
- (e) said partition also forming a compensation chamber between said water box and said expansion tank;
- (f) said expansion tank having transversely spaced longitudinal shoulders formed therein;
- (g) said partition including bearing portions respectively engaging said transversely spaced longitudinal shoulders whereby said expansion tank is operative to urge said water box in the direction of said collector plate;
- and
- (h) a plurality of ribs are interposed between said partition and said collector plate for blocking said water box between said expansion and said collector plate.
In a heat exchanger for an automotive vehicle, said heat exchanger including a plurality of substantially parallel heat exchanging tubes and a collector plate having a plurality of openings, each of said openings being traversed, respectively, by an end of one of said tubes for the purpose of mounting the same, the combination of:
- (a) an expansion tank;
- (b) said expansion tank having a peripheral edge portion sealingly connected to said collector plate;
- (c) a water box disposed inside said expansion tank, said water box comprising a partition separate from said expansion tank;
- (d) said partition having a hollow cross sectional profile and two opposed longitudinal edges engaging said collector plate on each side of said tube ends, respectively, to define a collector chamber between said partition and said collector plate;
- (e) said partition also forming a compensation chamber between said water box and said expansion tank;
- (f) means for holding said partition in place between said expansion tank, and said collector plate when said expansion tank and collector plate are sealingly connected;
- (g) said means for holding including at least one rib interposed between said expansion tank and said partition;
- (h) said compensating chamber including an outlet for gases at one end longitudinally thereof;
- (i) a wide communication passage disposed between the collector chamber and the compensation chamber in the vicinity of a distant end portion of the water box with respect to said gas outlet;
- and
- (j) a passage of relatively reduced cross section relative to said wide communication passage between the collector chamber and the compensation in the vicinity of an end of said water box close to said gas outlet.
In a heat exchanger including a collector plate having a plurality of openings therein and a plurality of substantially parallel heat exchanging tubes each of which has an end mounted through a respective one of said openings, the combination of an expansion tank having peripheral edge portions sealingly connected to said collector plate on either side of the ends of said tubes, a water box housed inside said expansion tank to divide the space between said expansion tank and said collector plate into a collector chamber adjacent to said collector plate and a compensation chamber adjacent to said expansion tank, further comprising means on said water box and expansion tank including a plurality of cooperating recesses and ribs engaged therein for coupling said water box and said expansion tank to brace the same against deformation under pressure applied internally thereof.
Dependencies are inferred from the claim text.