Supporting structure for improving thermal fatigue resistance of EGR cooler

An EGR cooler, anti-thermal fatigue technology, applied in the direction of machines/engines, engine components, exhaust gas recirculation, etc., can solve the problems of affecting the heat exchange efficiency of the EGR cooler, occupying the space of the heat exchange unit, and poor thermal fatigue resistance. Achieve the effects of improving thermal fatigue resistance, constraining axial deformation, and ensuring reliability

Pending Publication Date: 2022-01-14
BEIJING U BRIDGE CHAOYANG
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  • Abstract
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Problems solved by technology

[0004] For this reason, the embodiment of the present invention provides a support structure for improving the thermal fatigue resistance of the EGR cooler, so as to solve the problem that the existing EGR cooler thermal

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  • Supporting structure for improving thermal fatigue resistance of EGR cooler
  • Supporting structure for improving thermal fatigue resistance of EGR cooler
  • Supporting structure for improving thermal fatigue resistance of EGR cooler

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Embodiment Construction

[0023] The implementation mode of the present invention is illustrated by specific specific examples below, and those who are familiar with this technology can easily understand other advantages and effects of the present invention from the contents disclosed in this description. Obviously, the described embodiments are a part of the present invention. , but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0024] Please refer to Figure 1~4 , the present invention proposes a technical solution: a support structure for improving the thermal fatigue resistance of the EGR cooler, comprising two mounting plates 1, a plurality of heat exchanging units 2 are arranged between the two mounting plates 1, and the heat exchanging units 2 The structure is composed of circular, rectangular or flat heat exchang...

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Abstract

The invention discloses a supporting structure for improving thermal fatigue resistance of an EGR cooler. The supporting structure comprises two mounting plates, a plurality of heat exchange units are arranged between the two mounting plates, the plurality of heat exchange units are formed by heat exchange core bodies, a plurality of heat exchange core bodies are overlapped to form one heat exchange unit, and supporting plates sleeve the peripheries of the heat exchange units formed by the multiple heat exchange core bodies at intervals, outer edge protruding blocks are arranged at the top and the bottom of each supporting plate, each outer edge protruding block is sleeved with a supporting block, the supporting blocks are attached to the outer surfaces of the heat exchange units, a shell is arranged on the peripheries of the two mounting plates, and the shell wraps the multiple heat exchange units. The supporting structure can solve the problems that an existing EGR cooler thermal fatigue resistance device occupies the space of heat exchange units, the heat exchange efficiency of the EGR cooler is affected, the thermal fatigue resistance is poor, universality is poor, and the product cost is increased.

Description

technical field [0001] The invention relates to a support structure for improving the thermal fatigue resistance of an EGR cooler, which belongs to the technical field of internal combustion engines. Background technique [0002] The position of EGR technology in medium and heavy-duty engines has become increasingly important. Compared with light-duty engines, medium- and heavy-duty engines have a large exhaust gas flow, which requires the EGR cooler to have a higher heat transfer rate, which greatly increases the volume of the cooler. The heat unit is long, and when the cooler is working, the cooler will be affected by fatigue thermal shock, which will easily cause cracks at the welding seam between the main board at both ends and the end of the heat exchange unit or bending and fracture of the heat exchange unit, seriously affecting EGR cooling device reliability. [0003] There are currently two solutions. One is to add bellows to the intake end of the EGR cooler to comp...

Claims

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Application Information

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IPC IPC(8): F02M26/29
CPCF02M26/29
Inventor 景建周汤俊洁尹从娟付纪杭
Owner BEIJING U BRIDGE CHAOYANG
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