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Electric controlled tester and testing method for preformance of high-pressure oil pump in use for coaxial tracks of engines

A high-pressure oil pump and test device technology, which is applied in the direction of engine testing, engine components, machines/engines, etc., can solve the problems of not directly reflecting the performance of high-pressure oil pumps, lack of versatility, and indirect methods, so as to facilitate the performance and structure of oil pumps Simplified, Performance Tested Immediate Effects

Inactive Publication Date: 2007-07-25
NO 711 RES INST CHINA SHIPPING HEAVY IND GRP
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  • Abstract
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AI Technical Summary

Problems solved by technology

However, the measured fuel injection quantity cannot directly reflect the performance of the high-pressure fuel pump because it is affected by the injection characteristics of the fuel injector.
[0004] In addition, the existing method needs to be equipped with the common rail, fuel injector and the tested oil pump to form a complete system before the test can be carried out. The method is indirect, high in cost, and not universal

Method used

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  • Electric controlled tester and testing method for preformance of high-pressure oil pump in use for coaxial tracks of engines
  • Electric controlled tester and testing method for preformance of high-pressure oil pump in use for coaxial tracks of engines
  • Electric controlled tester and testing method for preformance of high-pressure oil pump in use for coaxial tracks of engines

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Embodiment Construction

[0037] Please refer to Figure 2. The performance test device 2 of an electronically controlled high-pressure fuel pump for common rail of the present invention includes: a test bench chassis 21, a test bench drive system 22 arranged on the test bench chassis, a fuel supply system 23, a test system 24, and a measurement and control system 25. among them:

[0038] A driving motor (not shown), a rotation speed sensor 222 and a rotation speed adjusting device 221 are provided on the output shaft of the driving motor on the test bench driving system 22.

[0039] The test system 24 includes an oil pump component 241 and an oil quantity measuring component 242. The oil pump component 241 includes a high pressure oil pump 2411 driven by the test bench drive system 22, and an oil quantity adjustment solenoid valve is provided on the high pressure oil pump. 2414.

[0040] The fuel quantity measurement component 242 includes a fuel accumulator 2421, a pressure regulator chamber 2422, an adju...

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Abstract

The present invention discloses an electrically-controlled high-pressure oil pump performance testing device for engine common rail and its testing method. It includes the following several portions: testing table chassis, testing table drive system, fuel oil supply system, testing system and measuring control system. The testing system includes oil pump component and oil quantity measuring component. It is characterized by that the testing table drive system includes drive motor and rotating speed regulating device; oil pump component includes a high-pressure oil pump, said high-pressure oil pump is driven by testing table drive system. Said invention also provides the concrete structure and action of oil quantity measuring component and measuring control system. Said testing device can be used for simultaneously measuring and recording related parameters of high-pressure oil pump.

Description

Technical field [0001] The invention relates to a performance test method for an electronically controlled high-pressure oil pump of an engine, in particular to a performance test device and a test method for an electronically controlled high-pressure oil pump for an engine common rail. Background technique [0002] The application of electronic control technology in the engine fuel injection system is regarded as a major technological advancement of the engine, especially the common rail fuel system is recognized as the most advanced fuel injection system. At present, there is no specific performance test method for electronically controlled high-pressure oil pumps for common rail. Generally, the performance of oil pumps is indirectly judged through system integration tests. [0003] The test device of the existing test method is shown in FIG. 1. The test device 1 includes: a test bench chassis 11, a test bench drive system 12 arranged on the test bench chassis, a fuel supply sy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M65/00
Inventor 平涛徐建新安小君凌励逊
Owner NO 711 RES INST CHINA SHIPPING HEAVY IND GRP
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