An egr water filter tank and water filter type exhaust gas recirculation system

A technology of exhaust gas recirculation and water filtration system, which is applied in exhaust gas recirculation, charging system, exhaust device, etc., can solve the problems of supercharger blade influence, cylinder pulling, damage to the lubricating oil film in the cylinder, etc., and is easy to implement. , the effect of reducing emissions and low cost

Active Publication Date: 2015-09-30
山东格新精工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, after the exhaust gas is cooled to below 100°C, the water vapor in the exhaust gas will gradually condense into liquid water, and as the EGR flow rate increases, the liquid water will also gradually increase, and will follow the airflow path and pass through the supercharger The compressor will eventually enter the cylinder, which will have a great impact on the high-speed moving turbocharger blades. At the same time, the liquid water entering the cylinder will also destroy the lubricating oil film in the cylinder, causing cylinder scuffing.

Method used

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  • An egr water filter tank and water filter type exhaust gas recirculation system
  • An egr water filter tank and water filter type exhaust gas recirculation system
  • An egr water filter tank and water filter type exhaust gas recirculation system

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Embodiment 1

[0026] see figure 1 . The EGR filter tank described in this embodiment includes a tank body 11, which is a stainless steel tank. The top of the tank body 11 is provided with an air inlet 11 and an air outlet 12, and the bottom of the tank body 11 is provided with a drainage hole 13, and the drainage hole 13 is provided with a guide pipe 15 perpendicular to the bottom of the tank. A sealing float 14 is placed on the drainage hole 13, and a guide hole is arranged on the sealing float 14. The lower bottom surface of the sealing float 14 is attached to the drain port 13 , and the guide hole is slidingly matched with the guide pipe 15 . The shape of the inner surface of the drainage hole 13 cooperates with the shape of the bottom surface of the sealing float 14 . The lower part of the sealing float 14 is an inverted cone, an inverted pyramid or a sphere, and the sealing float 14 is composed of a sealing float 141 below, a pressure float 142 above and a supporting connector 143 b...

Embodiment 2

[0030] see Figure 1 to Figure 3 . The exhaust gas recirculation filter system described in this embodiment is composed of an EGR filter tank 1 , an EGR pipeline 2 , an EGR cooler 3 and an EGR valve 4 . An EGR cooler 3, an EGR filter tank 1 and an EGR valve 4 are installed in sequence on the EGR pipeline 2. The EGR filter water tank is also the EGR filter water tank described in Embodiment 1.

[0031] In the medium-pressure exhaust gas recirculation system, the intake pipe section of the EGR duct 2 is connected before the turbocharger turbine end 6 on the exhaust pipe 5 of the engine. The outlet pipe section of the EGR pipeline 2 is connected before the compressor 9 of the supercharger on the intake pipe 8 of the engine. The front and rear mentioned here are based on the direction of gas flow.

[0032] In the low-pressure exhaust gas recirculation system, the intake pipe section of the EGR pipe 2 is connected to the exhaust pipe 5 of the engine after the turbo end 6 of the...

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Abstract

The invention discloses an EGR (Exhaust Gas Recirculation) water filtering tank and a water filtering type exhaust gas recirculation system. The water filtering tank comprises a tank body; an air inlet and an air outlet are formed in the upper part of the tank body; a water discharging hole is formed in the bottom of the tank body; a sealing floater is arranged on the discharging hole; the lower bottom surface of the sealing floater is adhered to a water discharging opening. The water filtering type exhaust gas recirculation system comprises an EGR cooler, the EGR filtering tank and an EGR valve which are sequentially mounted on an EGR pipeline. Compared with the prior art, liquid-sate water in the EGR system is filtered, so that smoke and hydrocarbon in part waste gas can be dissolved, the EGR system is purified, and the emission are reduced. Furthermore, the reliability of an engine can be further improved, aggravating of the abrasion of parts can be avoided; and meanwhile, the inflating density of the engine further can be increased, so that a novel combustion mode can be realized, the emission can be reduced, and the heat efficiency of the engine can be improved.

Description

technical field [0001] The invention belongs to the field of engine exhaust gas utilization, and in particular relates to an engine exhaust gas recirculation treatment device and a system thereof. Background technique [0002] With the increasingly stringent emission regulations at home and abroad, EGR (exhaust gas recirculation technology) has been widely used in the field of diesel engines. Utilizing the characteristics of the high specific heat of the exhaust gas itself, the introduction of the intake air after cooling can delay the ignition point and gain time for mixing; in addition, the introduction of the exhaust gas into the cylinder will inevitably lead to a decrease in the oxygen concentration in the cylinder, inhibiting the chemical reaction speed and reducing the average combustion temperature in the cylinder , for nitrogen oxides NO x In addition, the exhaust gas itself has a dilution effect on the intake air, further inhibiting the combustion reaction rate. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01N3/04F02M25/07F02M26/08F02M26/35
CPCY02T10/121Y02T10/12
Inventor 韩志强田维曾东建王媛媛邓猛
Owner 山东格新精工有限公司
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