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Machining device and method for pressure fluctuation attenuator

A processing device and processing method technology, applied in metal processing equipment, manufacturing tools, welding equipment and other directions, can solve problems such as increasing manufacturing costs, and achieve the effects of low investment, easy processing, and guaranteed performance

Active Publication Date: 2017-07-07
WUXI VOCATIONAL & TECHN COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This requires special processing equipment to realize the welding of the pressure fluctuation attenuator, and the manufacturing cost of the product is obviously increased

Method used

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  • Machining device and method for pressure fluctuation attenuator
  • Machining device and method for pressure fluctuation attenuator
  • Machining device and method for pressure fluctuation attenuator

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Embodiment Construction

[0031] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0032] Figure 1A with 1B It is a longitudinal sectional view of a pressure fluctuation attenuator of the present invention. The pressure fluctuation attenuator is especially suitable for the fuel pump of the direct injection gasoline engine in the cylinder, and is installed at the low-pressure oil inlet end of the fuel pump of the direct injection gasoline engine in the cylinder, which can reduce the pressure fluctuation of the fuel.

[0033] figure 2 It is a longitudinal sectional view of a processing device 2 of a pressure fluctuation attenuator 1 of the present invention. The processing device 2 includes an elastic membrane 3 , a sealing device 4 and a clamp 5 .

[0034] The elastic diaphragm 3 is configured in a disc shape and has a certain shape such as sinusoidal, arc-shaped and other corrugations in the central region 31 and has ...

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PUM

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Abstract

The invention relates to a machining method and device for a pressure fluctuation attenuator. The device comprises elastic diaphragms, sealing devices and clamps; the diaphragms are configured to be metal diaphragms which are disc-shaped, wherein the central regions are provided with wave patterns with certain shapes such as sinusoidal shapes and arc shapes, and the edges are provided with annular planes; a corrugated periphery of each diaphragm is provided with two or more bulging structures and planar parts in the circumferential direction; one ends of the bulging structures abut against edge wave patterns of the diaphragm wave patterns, and the other ends of the bulging structures abut against the annular planes at the edges of the diaphragms; the two diaphragms form a diaphragm box, and the diaphragm box is filled with gas and sealed through the sealing devices, and the pressure fluctuation attenuator is finally machined through secondary machining including stamping, welding and cutting.

Description

technical field [0001] The invention relates to a pressure wave attenuator, in particular to a processing device and method for the pressure wave attenuator. Background technique [0002] At present, a pressure fluctuation attenuator is used in the high-pressure pump of the gasoline direct injection fuel system to reduce the pressure fluctuation of the fuel in the low-pressure chamber. This type of pressure fluctuation attenuator is a diaphragm box formed by laser welding the edges of two metal corrugated diaphragms. In order to ensure the performance of the pressure fluctuation attenuator, a certain pressure such as 0.1-0.5MPa of gas must be filled inside the bellows to ensure that the gas does not leak. This increases the processing difficulty of the pressure fluctuation attenuator, and also has certain requirements for processing equipment. [0003] In the prior art, the pressure fluctuation attenuator installed in the high-pressure pump is a diaphragm box formed by las...

Claims

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Application Information

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IPC IPC(8): B23K26/28B23K26/70
CPCB23K26/28B23K26/702
Inventor 宋睿智
Owner WUXI VOCATIONAL & TECHN COLLEGE