Pulse attenuation plunger pump based on resistor-capacitor (RC) filter theory

A pulsation attenuation, plunger pump technology, applied in the components of pumping devices for elastic fluids, machines/engines, pump elements, etc., can solve the problems of size and mass limitations, volume limitations, complex structures, etc. Simple, small size and light weight effect

Inactive Publication Date: 2012-07-04
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its characteristics are: the structure is relatively complex, and it has an effect on the flow pulsation caused by various reasons, and the size of the effect is

Method used

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  • Pulse attenuation plunger pump based on resistor-capacitor (RC) filter theory
  • Pulse attenuation plunger pump based on resistor-capacitor (RC) filter theory

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with drawings and embodiments.

[0017] As shown in the drawings, the present invention includes a plunger pump 1, a load 10 and an oil tank 11; it is characterized in that: it also includes a front end cover 4, a housing 5, a piston 6 and a spring 7; the oil outlet of the plunger pump 1 is divided into Two lines, one line connects to the oil tank 11 after the load 10, and the other line 11 communicates with the high-pressure oil damping hole 3 on the front end cover 4 of the housing 5 through the pressure oil line 2, and the piston 6 and the spring are arranged in the housing 5 from top to bottom 7. The low-pressure oil damping hole 8 at the lower end of the casing 5 is connected to the oil leakage port of the plunger pump 1 through the low-pressure oil circuit 9 and then connected to the oil tank 11 . The pulsation attenuation device included in the present invention can be placed inside the plunger ...

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Abstract

The invention discloses a pulse attenuation plunger pump based on a resistor-capacitor (RC) filter theory. The pulse attenuation plunger pump comprises a plunger pump, a load, an oil tank, a front end cover, a shell, a piston and a spring, wherein the oil outlet of the plunger pump is divided into two paths, one path is connected with the oil tank through the load, and the other path is communicated with a high-pressure oil damping hole on the front end cover of the shell through a pressure oil path; the piston and the spring are arranged in the shell from top to bottom; a low-pressure oil damping hole at the lower end of the shell is connected with an oil leakage port of the plunger pump through a low-pressure oil path and then connected with the oil tank. The pulse attenuation plunger pump has the advantages of simple structure, small volume and light weight and can well attenuate flow pulses generated by various reasons inside the plunger pump; the normal work of the pulse attenuation plunger pump is not influenced by the displacement of the plunger pump; and the pulse attenuation plunger pump is suitable for various constant and variable working conditions.

Description

technical field [0001] The invention relates to a plunger pump, in particular to a pulsation attenuation plunger pump based on the principle of an RC filter. Background technique [0002] Flow pulsation is an inherent characteristic of piston pumps. The flow pulsation of the plunger pump is mainly composed of two parts. On the one hand, the plunger pump has multiple plungers in the oil discharge chamber and the oil suction chamber at the same time, so the instantaneous flow of the pump is the sum of the instantaneous flow of all the plungers in the oil discharge chamber at the same moment, that is, the output flow of the plunger pump is The superposition of the half-sine flow of each plunger; on the other hand, when each plunger is switched from the oil suction chamber to the oil discharge chamber, the pressure in the plunger chamber is lower than the pressure in the oil discharge chamber, which will cause the oil to flow back into the plunger chamber. A downward spike is ...

Claims

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Application Information

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IPC IPC(8): F04B53/00
Inventor 欧阳小平高锋杨华勇
Owner ZHEJIANG UNIV
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