Heat exchanger and method of manufacturing
a technology of heat exchanger and heat exchanger, which is applied in the direction of indirect heat exchanger, light and heating apparatus, other domestic objects, etc., can solve the problems of inability to achieve ideal heat exchange efficiency with this structur
Inactive Publication Date: 2006-06-22
MODINE MFG CO
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Problems solved by technology
However, the contact between the flat tubes and the heat exchanger elements is not particularly intensive in this structure, and therefore heat exchange is inhibited.
This heat exchanger can also be produced without soldering, but heat exchange efficiency is not ideal.
WO 00 / 43722 A1 also teaches round tubes made of plastic, without heat exchange elements between the tubes, where the tubes run in close wave-like rows to increase heat transfer between the cooling air flowing around the tubes and the charge air flowing in the tubes by deflecting the cooling air several times. Heat exchange efficiency is not ideal with this structure either.
Its heat exchange efficiency is also not ideal.
Method used
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[0033] Heat exchangers 20 variously embodying the present invention are illustrated in the Figures. Such heat exchangers 20 can be advantageously used, for example, in a vehicle as a radiator, a charge air cooler or an oil cooler, but it should be understood that heat exchangers incorporating the present invention may advantageously be used in other applications as well
[0034] As is apparent from FIG. 1, the heat exchanger has a heat exchanger block 22 assembled from flat tubes 26 and heat exchange elements (corrugated ribs 28). The flat tubes 26 are a suitable, for example, one with the designation PA 6.6 which has proven to be particularly suitable in heat exchangers in the aforementioned area of application. Extruded flat tubes are prescribed as the flat tubes 26 of the illustrated example, with the corrugated ribs 28 produced from sheet aluminum (though brass or copper or nonferrous heavy-metal sheets are other suitable alternatives) such as are already known and available. It s...
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Abstract
A heat exchanger including at least one collecting tank for input and output of a first heat transfer medium, a plurality of plastic tubes receiving the first heat transfer medium from the at least one collecting tank and outputting the first heat transfer medium to the at least one collecting tank, and a plurality of metal heat exchange elements between the tubes and in heat exchange contact with the tubes and a second heat transfer medium. At least some of the heat exchange elements are incorporated in the tube walls, with wave crests and troughs embedded in furrows of the walls. The heat exchanger is manufactured by heating the heat exchange element to plasticize the tubes at least at the contact sites between the tubes and the heat exchange elements, and then producing intimate contact between the tube and the heat exchange element.
Description
CROSS REFERENCE TO RELATED APPLICATION(S) [0001] Not applicable. STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT [0002] Not applicable. REFERENCE TO A MICROFICHE APPENDIX [0003] Not applicable. TECHNICAL FIELD [0004] The present invention is directed toward heat exchangers, and particularly toward heat exchangers having plastic components. BACKGROUND OF THE INVENTION AND TECHNICAL PROBLEMS POSED BY THE PRIOR ART [0005] DE 33 02 150 A1 discloses one example of a heat exchanger having flat metal tubes and flat metal ribs having the contour of the openings corresponding to the flat tubes. One flat tube each is inserted through each opening of a stack of ribs so that a heat exchanger block is formed by a number of tubes that are passed through a stack of ribs. The heat exchanger also has side parts made of plastic and a bottom part viewed as a collecting tank, which also consists of plastic. The soldering process often required to produce heat exchangers is avoided by th...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F28D1/02
CPCB29C65/46B29K2705/00B29L2031/18F28D1/0366F28D1/05383F28D2001/0273F28F1/022F28F1/126F28F21/062F28F21/065F28F21/084B29C66/53465B29C66/112B29C66/114B29C66/131B29C66/7422B29C66/8322F28F2250/02
Inventor NIES, JENSOPFERKUCH, FRANK
Owner MODINE MFG CO