Heat Exchanger
AssigneeBorgwarner Emissions Systems Spain, S.L.U.
InventorSalvador Garcia Gonzalez
Life of this patent
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Abstract
The present invention proposes a new design in the configuration of the attachment between the battery of tubes and the shell of a heat exchanger, improving the manufacturing costs and efficiency with respect to the exchangers of the state of the art. The present invention describes a heat exchanger and a process for manufacturing it, which combines the thermal fatigue strength of floating core exchangers with the compact, simple and more economical design of monoblock exchangers, resulting from, among others, a smaller number of necessary manufacturing steps.
Claims16
A heat exchanger comprising a shell (1) suitable for the circulation of coolant therein, with a coolant inlet opening (3) and outlet opening (4), and a battery with one or more hollow tubes (2) extending according to an axial direction (X) suitable for conducting gas going through said shell (1) and welded thereto at one of its ends (1.1), characterized in that at the opposite end of the battery:
- the latter is welded to an independent baffle (7) that is noncontiguous with respect to the shell (1);
- and where
- said baffle (7) comprises a first bushing (6) around its perimeter that is non-contiguous with respect to the shell (1) the surface of which opposite the one attached to the baffle is essentially parallel to the axial direction (X),
- there is a first housing (8) between the surface (6.1) of the first bushing (6) opposite the one attached to the baffle (7) and the shell (1) such that the access to the first housing (8) is possible according to the axial direction (X) of the exchanger but not according to its radial direction,
- the attachment between the first bushing (6) and the shell (1) is by means of a first joint (9) housed in the first housing (8) defined between the shell (1) and the first bushing (6), and
- the exchanger comprises a first independent closing part (10) that is non-contiguous with respect to the first bushing (6), which gives rise to a separation (12) between both, the first closing part (10) preventing the movement of the first joint (9) in the axial direction once this joint (9) is enclosed by at least one inner surface of the first closing part (10) in the first housing (8) defined between the shell (1) and the first bushing (6).
Dependencies are inferred from the claim text.