Heat exchanger for a motor vehicle

A technology for heat exchangers and automobiles, applied in heat exchange equipment, heat exchanger shells, indirect heat exchangers, etc.
CN101166945AInactive Publication Date: 2008-04-23BEHR GMBH & CO KG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEHR GMBH & CO KG
Publication Date
2008-04-23
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a heat exchanger, in particular for a motor vehicle, having tubes and if appropriate corrugated fins through which a first, hot medium can flow and which are arranged between collecting boxes, and having at least one side part ( 1 ) which is arranged laterally between two collecting boxes, a second medium which flows around the tubes and if appropriate corrugated fins being colder than the first, hot medium during operation, the side part ( 1 ) absorbing at least some of the tensile stresses which act at least on the outermost tube as a result of different thermal expansions of the tubes and if appropriate corrugated fins, and the side part ( 1 ) having slots ( 2 ) and / or openings ( 4 ) which change the spring constant of the side part ( 1 ) in relation to a side part without slots and / or openings such that, in the event of a different longitudinal expansion of the central tubes relative to the outermost tube which is arranged adjacent to the side part ( 1 ), the tensile stress which acts on the outermost tube is reduced.
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Description

technical field

[0001] The invention relates to a heat exchanger, in particular for a motor vehicle, in particular to a charge air cooler according to the preamble of claim 1 . Background technique

[0002] Heat exchangers generally have two collecting tanks, between which tubes such as flat tubes and corrugated fins are arranged. In order to connect the header boxes and protect the outer corrugated fins, side plates are often arranged between the header boxes.

[0003] The problem is that on such heat exchangers, especially on charge air coolers, the outermost tubes are relatively cold compared to the middle tubes and the corresponding corrugated fins, so that during operation, especially At the start of operation, stresses are created in the heat exchanger due to temperature differences and the resulting differences in thermal expansion of the individual heat exchanger parts. Here, the outer tubes are cooler than the inner tubes and corrugated fins, ie they are shorter, ...

Claims

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