Waste gas circulating valve
A technology of exhaust gas circulation and valve body, applied in the direction of exhaust gas recirculation, adding non-fuel substances to fuel, internal combustion piston engines, etc., can solve the problems of increased production and manufacturing costs, increased manufacturing costs of required parts, and diaphragm damage, etc., to achieve The effect of maintaining normal operation, reducing the amount of production, and improving the service life
Inactive Publication Date: 2010-04-28
KYMCO
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Problems solved by technology
[0017] Since the exhaust gas recirculation valve 3 of the exhaust gas recirculation device 2 actuated by negative pressure control is installed around the extremely high temperature engine, the diaphragm 331 is easily damaged due to high temperature, making the service life of the exhaust gas recirculation device 2 unsuitable for use demand; also because the working environment of the negative pressure exhaust gas recirculation valve 3 is a high-temperature working environment, and it must be made of high-temperature-resistant materials, which increases the manufacturing cost
[0018] In addition, since the negative pressure of the intake pipe 500 and the diaphragm unit 33 must be additionally adjusted and compensated by a pressure regulator converter 42 to adjust and compensate the negative pressure of the intake pipe 500 to meet the engine's actuation requirements, resulting in required parts and manufacturing costs increase
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[0035] The aforementioned and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of a preferred embodiment with reference to the drawings.
[0036] Before the present invention is described in detail, it should be noted that in the following description, similar elements are represented by the same numbers.
[0037] See image 3 , Figure 4 , A preferred embodiment of the exhaust gas recirculation valve 5 of the present invention, this embodiment is used in a handle-type vehicle engine (not shown in the figure) for description, thereby reducing the amount of NOx exhaust gas emitted by the engine The source of air pollution.
[0038] Similar to the prior art, the engine of a handle-type vehicle such as a locomotive has an intake pipe 500 that can provide fresh air into it, an exhaust pipe (not shown in the figure) for the exhaust gas produced by the combustion of fuel, and an exhaust pipe (not shown)...
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This invention provides one waste gas recycle valve, which is characterized by the following: the valve comprises one valve to set one space, first and second channels connected to the space, one sealunit located into the space and control line connected to fuel line. The invention uses mechanic structure to control economizer valve to drive control line to drive seal unit to control guide enginewaste gas volume and further to decrease engine NOx drainage without affect on engine to improve utility life.
Description
【Technical Field】 [0001] The present invention relates to an exhaust gas recirculation valve (EGR valve), in particular to an exhaust gas recirculation valve moved by a throttle line. 【Background technique】 [0002] Fresh and clean air quality is a basic element of human life and one of the elements to ensure health. However, due to the rapid economic development of our country and the numerous transportation vehicles, the pollution caused by exhaust gas has a huge impact on air quality. With the development of industry, air pollution is becoming more and more serious, especially in large metropolitan areas. The exhaust gas emitted by transportation means extremely serious harm to people's health. Among them, vehicles are the main source of air pollutants. With the rising awareness of environmental protection, air pollution caused by vehicle exhaust emissions has become an urgent issue to be solved. [0003] See figure 1 , The conventional exhaust gas recirculation device 1 used...
Claims
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IPC IPC(8): F02M25/07F02D21/08F02M26/63
CPCY02T10/121
Inventor 赖玟全陈俊清
Owner KYMCO