Digital flow-distribution constant-flow radial plunger pump

A constant flow, radial column technology, applied in the direction of pumps, multi-cylinder pumps, liquid variable capacity machinery, etc., can solve the problems of flow pulsation, achieve the effect of reducing pulsation, reducing body vibration, and realizing constant flow output

Inactive Publication Date: 2016-03-09
SHANGHAI JIAO TONG UNIV
View PDF6 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this device can only be applied to hydraulic motors, and

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Digital flow-distribution constant-flow radial plunger pump
  • Digital flow-distribution constant-flow radial plunger pump
  • Digital flow-distribution constant-flow radial plunger pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] like figure 1 As shown, this embodiment includes: two-position three-way high-speed switch valves 1-5, load 6, controller 7, plunger cavity 9-13, absolute value angle encoder 8 and distribution fluid 14, wherein: each two-position three-way The high-speed switch valves 1-5 are respectively connected with the corresponding plunger cavity, the distribution fluid 14, and the controller 7.

[0025] The P port of the two-position three-way high-speed switching valve is connected to the load 6, the A port is connected to the plunger cavity through the distribution fluid 14, and the T port is connected to the fuel tank. The first two-position three-way high-speed switch valve 1 is connected to the first plunger cavity 9 (I), the second two-position three-way high-speed switch valve 2 is connected to the second plunger cavity 10 (II), and the third two-position three-way The high-speed switch valve 3 is connected with the third plunger cavity 11 (Ⅲ), the fourth two-position th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

Provided is a digital flow-distribution constant-flow radial plunger pump. The digital flow-distribution constant-flow radial plunger pump comprises plunger chambers arranged in a pump body, two-position three-way high-speed switching valves connected with an oil tank and a load, an absolute value angle encoder connected with crank shafts of the plunger chambers, a flow-distribution body and a controller, wherein the two-position three-way high-speed switching valves are connected with the plunger chambers through the flow-distribution body, the controller is connected with the absolute value angle encoder and the two-position three-way high-speed switching valves, the controller receives a corner signal measured through the absolute value angle encoder, a PWM signal and a stroke control signal are output to the two-position three-way high-speed switching valves through a duty ratio control algorithm and a stroke ratio control algorithm, and therefore constant flow of the pump is achieved. According to the digital flow-distribution constant-flow radial plunger pump, the valves are controlled through the duty ratio and the stroke ratio, pulsation of the output flow of a hydraulic pump is reduced, pump vibration is relieved, long-time running of the pump is facilitated, random rotating speed working condition can be adapted, and constant-flow output is achieved.

Description

technical field [0001] The invention relates to a technology in the field of plunger pumps, in particular to a radial plunger pump with digital distribution and constant flow. Background technique [0002] In hydraulic wind power generation and hydraulic ocean energy power generation technology, the system structure mostly adopts the circuit of "quantitative hydraulic pump-variable hydraulic motor" to collect wind energy or ocean energy, mainly through the displacement adjustment of the variable hydraulic motor to achieve stable speed control and power generation , and the hydraulic pump still adopts a quantitative hydraulic pump designed according to the driving principle of constant high speed, it is difficult to ensure that it can meet the requirements of random and variable working conditions unique to wind power and ocean energy power generation for a long time, and this pump is difficult Running at low speed for a long time will cause frequent system failures. Existin...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): F04B1/04F04B1/06
CPCF04B1/04F04B1/063
Inventor 施光林郁立成齐礼东
Owner SHANGHAI JIAO TONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap