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Heat exchanger

A heat exchanger and tube body technology, applied in the direction of heat exchanger fixing, heat exchange equipment, heat exchanger, etc., can solve the problems of high cost, increased fuel consumption, high material cost, etc. The effect of stretching or rolling, good surface properties

Inactive Publication Date: 2017-12-08
MAHLE INT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Disadvantages in the state of the art, in particular the formation of the flanges, which require expensive mechanically profiled additional parts
However, the fact that such a flange formed as a cast part is relatively heavy proves a further disadvantage, especially when used in motor vehicles increasing fuel consumption and resulting in high material costs

Method used

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Embodiment Construction

[0023] according to Figure 1 to Figure 4 A heat exchanger 1 for an internal combustion engine (not shown) according to the invention comprises a tube body 2 having a flange 3 extending around the tube body 2 . According to the invention, the flange 3 now comprises a first circular portion 4 and a second circular portion 5 , both formed as elongated or rolled sheet metal parts and together forming the flange 3 . In this case the two parts 4 , 5 can be arranged on the same tubular body 2 or on different tubular bodies 2 , 2 ′.

[0024] watch based on figure 1 The two parts 4, 5, it can be noted that these are formed as the same part and can thus be manufactured cost-effectively by one and the same drawing tool. Each of these two parts 4 , 5 comprises a contact area 6 , 7 and lies flat against the outer circumference of the tubular body 2 via the respective contact area 6 , 7 . As a result, a planar connection of the individual parts 4 , 5 of the flange 3 via the individual c...

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Abstract

The invention relates to a heat exchanger (1) for an internal combustion engine having a tubular body (2,2 ') and with a to the tubular body (2,2') extending flange (3). The invention is characterized in that the flange (3) a first circular part (4) and / or a second circular part (5), both of which are formed as a drawn or rolled sheet metal components. In this way a light and post free flange (3) can be realized in particular.

Description

technical field [0001] According to the preamble of claim 1 , the invention relates to a heat exchanger for an internal combustion engine having a base pipe and a flange extending at least partially around the base pipe. Background technique [0002] A common heat exchanger for an internal combustion engine is known from DE 2012 211 311 A1 with a tube body, in which a first fluid guide tube is arranged, which is held at the end side in a tube sheet and has an at least partially surrounding tube body extension flange. The tube running in the tube body forms in this case a first flow channel, eg for exhaust gas, whereas a second flow channel, eg for cooling liquid, is formed between the tube and the tube body. On at least one of its end regions, the heat exchanger comprises a flange extending around the tube body formed in one piece with the heat exchanger. Additional assembly steps can be omitted by designing the flange as a single piece, in particular with the tube body of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28C3/02F28F9/26F01N5/02
CPCF01N5/02F28C3/02F28D2021/004F28F9/268F28F2275/04F28F2275/06F28F2275/08F01N3/0205F01N13/1888F01N2240/02F01N2450/22F02B29/0462F28D21/0003F28F9/001F28F9/0219F02M26/32Y02T10/12F28D2021/008F28F2255/00
Inventor 克里斯蒂安娜·法贝尔莱安德·霍恩塔施西蒙·洪德阿尔布雷希特·西格尔
Owner MAHLE INT GMBH
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