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Burr removal method and apparatus for oil ejector body pressure regulating cavity

A pressure regulating chamber and fuel injector technology, which is applied in metal processing equipment, abrasive jet machine tools, abrasives, etc., can solve problems such as surface burrs and oxides, and achieve environmental protection, uniform grinding, and high processing quality Effect

Inactive Publication Date: 2008-08-20
SHANGHAI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of burrs and oxides on the surface of the pressure regulating chamber of the injector body existing in the existing production conditions, and to provide a method and equipment for deburring the pressure regulating chamber of the fuel injector body based on the abrasive slurry jet technology , so that the surface burrs and oxides on the surface of the injector body pressure regulating chamber can be effectively removed

Method used

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  • Burr removal method and apparatus for oil ejector body pressure regulating cavity

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Embodiment Construction

[0015] A preferred embodiment of the present invention is described as follows in conjunction with accompanying drawing:

[0016] The method for deburring the pressure regulating chamber of the injector body adopts the abrasive slurry jet to deburr, and uses the high-pressure generating device to make the abrasive slurry generate a high-speed jet. The abrasive particles with relatively large kinetic energy in the abrasive slurry jet have a strong grinding effect Through the erosion and grinding effect of these abrasive particles on the inner wall of the channel of the pressure regulating chamber of the injector body, the burrs and oxides on the surface of the inner wall of the channel of the pressure regulating chamber of the injector body are removed.

[0017] see figure 1 , the equipment for deburring the pressure regulating cavity of the injector body used in this method includes a high-pressure material tank 1, an oil pump 2, a nozzle 19, a slurry pump 7, a slide rail 13, ...

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PUM

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Abstract

The invention relates to a deburring method for the pressure regulating cavity of an oil injector body and the device, which is characterized in adopting grinding medium slurry jet for deburring. The method is as follow: a high pressure generator is used for generating high-speed jet of grinding medium slurry, wherein, the grinding medium particles with greater kinetic energy in the grinding medium slurry jet has strong grinding force; the burr and oxide on the channel inner wall of the pressure regulating cavity of the oil injector body are removed with the eroding and grinding function of the grinding medium particles. The device comprises a generator of high pressure slurry jet, a nozzle reciprocating movement mechanism, a workpiece rotary mechanism and a feed mechanism. The deburring method has the advantages of high processing efficiency and high processing quality together with the device.

Description

Technical field: [0001] The invention relates to a method and equipment for deburring a pressure regulating cavity of a fuel injector body. Background technique: [0002] Orifice injector is an important part of direct injection diesel engine, and its manufacturing quality directly affects the power, reliability, economy and emission indicators of the diesel engine. The injector is composed of injector body, needle valve body and so on. According to the development trend of fuel injectors at home and abroad, and diesel engines meet the requirements of Euro I, Euro II, and Euro III standards for fuel injectors, the surface processing quality of the pressure regulating chamber of the fuel injector body is to evaluate the level of fuel injectors manufactured by an enterprise an important indicator of . Therefore, an effective method is needed to remove the burrs and oxides on the surface of the pressure regulating chamber of the injector body, improve its surface roughness, a...

Claims

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Application Information

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IPC IPC(8): B24C3/32
Inventor 蔡红霞徐翀俞涛刘林生刘丽兰柏余杰程俊王力
Owner SHANGHAI UNIV
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