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EGR cooler cooling temperature control device and method

An EGR cooler, cooling temperature technology, applied in the charging system, machine/engine, engine components, etc., can solve the problems of inability to accurately and automatically control the exhaust gas temperature, poor reliability of the temperature control device, and poor control of the cooling temperature, etc. To achieve the effect of convenient installation, use and replacement, low cost, and improved reliability

Pending Publication Date: 2021-10-19
GUANGXI YUCHAI MASCH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The object of the present invention is to provide a cooling temperature control device and method for an EGR cooler to solve the problem that the exhaust gas temperature cannot be accurately and automatically controlled in the existing EGR cooling structure. The temperature control device controlled by the circuit has poor reliability and high cost

Method used

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  • EGR cooler cooling temperature control device and method
  • EGR cooler cooling temperature control device and method

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Embodiment Construction

[0032] Specific description will be given below in conjunction with specific embodiments.

[0033] The present invention will be further described in detail below in combination with specific embodiments. It should be emphasized that the following description is only exemplary and not intended to limit the scope of the invention and its application.

[0034] like figure 1 As shown, a cooling temperature control device for an EGR cooler, a cooler shell 2 and a cooler core 3, the left end of the cooler shell 3 is provided with an air inlet 1, and the right end is provided with an air outlet 7, the cooler The shell 2 is provided with an air conditioner core 3, and the bottom of the cooler shell 2 is provided with a round hole, and a water inlet pipe 10 is arranged in the round hole, and the water inlet pipe 10 is connected with the bottom of the cooler core 3, and the cooler core 3 is provided with a temperature control device, the temperature control device includes a sealing ...

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Abstract

The invention discloses an EGR cooler cooling temperature control device and method. The EGR cooler cooling temperature control device comprises a cooler shell and a cooler core, an air inlet and an air outlet are formed in the two ends of the cooler shell respectively, the cooler core is arranged in the cooler shell, a round hole is formed in the bottom of the cooler shell, a water inlet pipe is arranged in the round hole, the water inlet pipe is connected with the cooler core, a temperature control device is arranged on the cooler core, the temperature control device comprises a sealing cover, a spring, a conical plug and an expansion cavity, the spring is arranged in the sealing cover, the conical plug is arranged at the bottom of the spring, and the expansion cavity is formed in the bottom of the cooler core body. According to the EGR cooler cooling temperature control device and method, the cooling intensity is automatically changed, so that the automatic temperature control is realized, the controlled temperature after cooling is more accurate, and the reliability is improved.

Description

【Technical field】 [0001] The invention belongs to the technical field of heat exchangers, and in particular relates to a cooling temperature control device and method for an EGR cooler. 【Background technique】 [0002] EGR (Exhaust Gas Recirculation), that is, the exhaust gas recirculation system, is a technology that cools the exhaust gas discharged from the engine after combustion, and then introduces it into the intake pipe to mix with fresh intake air and then enters the internal combustion engine cylinder for combustion. The EGR system can reduce the emission of polluting gases. The exhaust gas temperature of the internal combustion engine is generally 500-700°C, and it needs to be cooled to a certain temperature range before it can be introduced into the intake pipe. Glue will lead to blockage of EGR cooler, decreased cooling efficiency, EGR valve sticking and other failures; too high temperature after cooling will cause damage to EGR valve, high intake temperature of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M26/33
CPCF02M26/33
Inventor 李春尹光跃李松松
Owner GUANGXI YUCHAI MASCH CO LTD
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