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Equipment for testing valve performance of oil fuel pump

A test device and fuel pump technology, which is applied in the field of automotive fuel pumps, can solve problems such as low detection efficiency, inability to test dynamic performance, and large errors, and achieve the effects of high detection efficiency, small errors, and high precision

Inactive Publication Date: 2005-10-26
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of detection has low efficiency and large error, and is not suitable for testing the fuel pump outlet valve on the fuel pump production line, and can only test the static performance, not the dynamic performance.

Method used

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  • Equipment for testing valve performance of oil fuel pump
  • Equipment for testing valve performance of oil fuel pump
  • Equipment for testing valve performance of oil fuel pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] Such as figure 1 The shown embodiment 1 of the test device of the present invention includes: a pipeline part, a pressure sensor 5 for testing the pressure at the fuel inlet port 12 of the fuel pump, and a pressure sensor 5 for setting the pressure at the oil outlet 12 of the fuel pump. Solenoid valve 1 on the fuel pipe; the pipeline part includes: a pressure gas source for communicating with the oil inlet end of the fuel pump outlet 12, a negative pressure generator for communicating with the oil inlet end of the fuel pump outlet 12; A solenoid valve 2 is arranged between the oil inlet end of the pump outlet 12 and the pressure gas source, and an electromagnetic valve 3 is arranged between the oil inlet end of the fuel pump outlet 12 and the negative pressure generator. The negative pressure generator is a negative pressure generator driven by pressure gas, and its power gas input end communicates with the pressure gas source through the solenoid valve 4 .

[0041] Su...

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PUM

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Abstract

The invention relates to the fuel pump valve performance testing equipment, which comprises the pipeline part, the pressure sensor testing the oil outtake pressure of the fuel pump, the electromagnetic valve on the outtake pipe of the reversing valve. The pipeline part comprises the pressure air source connecting the oil intake end of the output nozzle of the pump, the negative pressure producer connecting the intake end of the output nozzle of the fuel pump; the electromagnetic valves are between the intake end of the output nozzle of the pump and the pressure air source, and between the intake end of the output nozzle of the pump and the negative pressure producer; the output end of the pressure sensor connects the computer. The invention provides the positive pressure gas to the output nozzle through the pressure air source, vacuums through the negative pressure producer and makes the output nozzle produce the negative pressure, tests the starting pressure, the sealing performance of the overflow valve through the pressure sensor.

Description

technical field [0001] The invention relates to an automobile fuel pump, in particular to a device for testing the performance of a valve at an outlet of the fuel pump during the production process of the fuel pump. Background technique [0002] The automobile fuel pump is an important component of the automobile fuel supply system. The fuel pump outlet is equipped with a fuel supply check valve and a safety overflow valve. The main function of the oil supply check valve is to restrict the flow of oil in one direction and not in the opposite direction. The performance requirements of the check valve mainly include: when the oil flows through the check valve, the resistance should be small, that is, the pressure loss should be small; There should be no vibration, shock and noise. The safety relief valve overflows through the valve port to keep the pressure of the controlled system or circuit stable, realize pressure regulation, pressure stabilization and pressure limitation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/28
Inventor 陈汉汛赵奇平汪芳
Owner WUHAN UNIV OF TECH
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