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EGR intake pipe with filter device

A technology of filter device and intake pipe, applied in the charging system, exhaust gas recirculation, engine components, etc., can solve the problems of EGR cooler leakage, EGR valve stuck, shorten the service life of EGR cooler, etc., to improve the intake air The effect of efficiency

Inactive Publication Date: 2018-04-24
WUXI WOERFU AUTO TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At a certain concentration, these substances will seriously corrode the EGR cooler and cause the EGR cooler to leak. The coolant in the engine cooler will enter the cylinder along the leak point, resulting in engine exhaust failure.
In severe cases, it will cause serious failures such as engine scuffing and shorten the service life of the EGR cooler.

Method used

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  • EGR intake pipe with filter device
  • EGR intake pipe with filter device
  • EGR intake pipe with filter device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] This embodiment provides an EGR intake pipe with a filtering device, such as figure 1 , EGR intake pipe 1 is connected with EGR cooler 2, and is connected with EGR control valve 3. Such as figure 2 , another working form of the combination of the three.

[0027] The EGR intake pipe includes an intake pipe 1.3, the first end of the intake pipe 1.3 is connected to an air inlet flange whose diameter matches the first end of the intake pipe 1.3, and the second end of the intake pipe 1.3 is connected to an air outlet whose diameter matches the second end of the intake pipe Flange 1.4, the EGR intake pipe includes an intake pipe 1.3, a filter is provided in the intake pipe 1.3, and a positioning mechanism is provided at the filter; the filter is a filter device with a special mesh structure, including at least 2 filter screens ; The special mesh-shaped filter device allows the gas to pass through at least another layer of filter screen before reaching the other side of the...

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PUM

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Abstract

The invention relates to an EGR intake pipe with a filter device, and solves the technical problem of bad carbon accumulation. The EGR intake pipe with the filter device comprises an intake pipe; a first end of the intake pipe is connected with an intake port flange in diameter matching with the first end of the intake pipe; and a second end of the intake pipe is connected with an exhaust port flange in diameter matching with the second end of the intake pipe. The EGR intake pipe is characterized by comprising the intake pipe; a filter is arranged in the intake pipe, and is provided with a positioning mechanism; the filter is the filter device with a special netty structure, and comprises at least two filter screens; the special netty filter device enables that gas can reach the other sideof the filter at least by passing through the other layer of filter screen after introducing from one side of the filter device; the problem is preferably solved; and the EGR intake pipe can be applied to a diesel engine discharge part.

Description

technical field [0001] The invention relates to the field of diesel engine exhaust components, in particular to an EGR intake pipe with a filtering device. Background technique [0002] With the upgrading of emission regulations, it is expected that my country will fully implement the requirements of the National VI emission regulations in 2020. Engines in the national six-stage technical route generally have a water-cooled EGR system to reduce NOx emissions. The particulate (hereinafter referred to as PM) emission of diesel engine is 30-60 times higher than that of gasoline engine, mainly carbon smoke, and condenses and adsorbs polymer soluble organic matter (hereinafter referred to as SOF), SO2 and NOx. These organic substances include unburned fuel oil, lubricating oil and their oxidation and cracking products to varying degrees. These substances, in a certain concentration, severely corrode the EGR cooler and cause the EGR cooler to leak, and the coolant in the engine ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M26/13F02M26/35
CPCF02M26/13F02M26/35
Inventor 王琪许福忠刘慧李刚
Owner WUXI WOERFU AUTO TECH CO LTD