Heat exchange – Radiator core type – Deformed sheet forms passages between side-by-side tube means
Patent
1998-08-20
2000-05-30
Lazarus, Ira S.
Heat exchange
Radiator core type
Deformed sheet forms passages between side-by-side tube means
165176, 165178, F28D 102
Patent
active
060680490
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention relates to the technology of heat exchangers, in particular for motor vehicles.
Numerous methods for manufacturing heat exchangers for motor vehicles are known, regardless of whether it involves radiators for engine cooling systems or evaporators and condensers of air conditioning systems for the passenger space of the vehicle.
These heat exchangers comprise a serpentine circuit, which in certain cases may be formed from stacked, flat, individual boxes, through each of which the cooling fluid or the refrigerant flows in one direction then in the other, in a U-shaped path. Locally, usually at the upper part at the two ends of the branches of the U, the boxes are shaped so as to define two separated chambers, one for the inlet and the other for the outlet of the fluid. The inlet chambers of the various boxes communicate with one another, as do the outlet chambers
The exchanger is connected to the remainder of the circuit for the admission and for the extraction of the fluid via parts called "supply inserts", which each replace a box at the site of the chambers. By choosing an appropriate shape for the part, the insert may communicate with the chamber immediately adjacent to the inlet or outlet orifice, or with the chamber the furthest therefrom, depending on whether it is wished to provide a fluid inlet insert or a fluid outlet insert.
To produce such inserts, units comprising at least three parts are generally used, the main ones of which are different according to whether it is wished to provide an inlet insert or an outlet insert (a more detailed explanation will be given on the manner in which the present inserts are produced with reference to FIGS. 1 and 2, which will be described further on).
BRIEF SUMMARY OF THE INVENTION
One of the objects of the invention is to propose a heat exchanger comprising a universal inlet or outlet supply insert, the structure of which enables the production of the heat exchanger to be simplified by: common parts, production cost of the heat exchanger.
The insert is, in a manner known per se, an inlet or outlet supply insert for a heat exchanger, in particular a heat exchanger for a motor vehicle, this heat exchanger possessing a plurality of stacked individual boxes formed so as to define locally a first chamber, for the inlet or outlet of fluid, and a second chamber, respectively for the outlet or inlet of fluid, mutually juxtaposed and stretched out in the stacking direction of the boxes, this insert comprising a fluid inlet or outlet orifice generally oriented laterally with respect to the longitudinal direction of the chambers and extended inside the chambers by a body inserted into the stack of boxes, this body being formed as desired to bring the orifice into fluid communication either with the first chamber, adjacent to the orifice, or with the second chamber, adjacent to the first chamber and separated from the orifice by the interposition of the first chamber.
According to the invention, the insert comprises a basic part provided at the level of the body with at least two openings capable of being brought into fluid communication respectively with the first chamber and with the second chamber, and a separating member capable of isolating the fluid currents between the orifice and the chamber with which the orifice must not be brought into fluid communication, the shape and disposition of the separating member being chosen so as to bring the orifice into fluid communication either with the first chamber, or with the second chamber.
According to a certain number of advantageous subsidiary characteristics: blank. groups comprising two opposite openings formed on two opposite lateral walls of the body; chamber, the separating member is in the form of a transverse partition dividing the internal volume of the body in the region situated between the two openings or groups of openings; this transverse partition is preferably positioned in the body by insertion into a lateral slot provided in one of the lateral walls of said b
REFERENCES:
patent: 4967834 (1990-11-01), Tokizaki et al.
patent: 5355947 (1994-10-01), Rasso, Jr. et al.
patent: 5413169 (1995-05-01), Frazer et al.
patent: 5544702 (1996-08-01), Nishishita
patent: 5617915 (1997-04-01), Kinugasa et al.
Lazarus Ira S.
McKinnon Terrell
Valeo Climatisation
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