A turbocharger start-stop impact test bench

A turbocharger and impact test technology, which is applied in the field of power machinery, can solve the problems of testing the reliability of the turbocharger under the start-stop working condition of the turbocharger, and cannot assess the reliability of the turbocharger of urban vehicles, etc., so as to reduce the Experimental cost, effect of performance improvement

Inactive Publication Date: 2018-07-27
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Only relying on existing test methods will not be able to assess the reliability of urban vehicle turbochargers under frequent start-stop conditions
At present, there is no test method for testing the reliability of the turbocharger under the start-stop condition of the turbocharger at home and abroad.

Method used

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  • A turbocharger start-stop impact test bench

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Embodiment Construction

[0017] In order to enable those skilled in the art to better understand the solution of the present invention, the content of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0018] A turbocharger start-stop impact test bench, including a first circuit and a second circuit, the two sets of turbochargers in the two circuits are identical, and share a combustion chamber 1, a combustion chamber outlet pipe 2, and a high-temperature switching valve 3. Air ejector 18, such as figure 1 shown.

[0019] The first turbocharger includes a first compressor 6 and a first turbine 7; the second turbocharger includes a second compressor 11 and a second turbine 10;

[0020] The first circuit includes a combustion chamber 1, a combustion chamber outlet pipe 2, a high temperature conversion valve 3, a first combustion chamber outlet pipe branch 4, a first compressor intake pipe 5, a first compre...

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Abstract

The invention relates to a start-stop shock test bench for a turbocharger, which belongs to the technical field of power machinery. Including two circuits, the first circuit and the second circuit are identical, including a turbocharger and connecting pipes, and share the air ejector, combustion chamber and high temperature conversion valve. The invention also discloses a test method for the start-stop shock of the turbocharger, which provides a basis for the reliability of the start-stop shock of the turbocharger. The test bench scheme of the invention is scientific and reasonable, easy to realize, stable and reliable, and has important application value for improving the reliability of the turbocharger.

Description

technical field [0001] The invention relates to a start-stop shock test bench for a turbocharger, which belongs to the technical field of power machinery. Background technique [0002] In the development of internal combustion engines, the application of turbocharging technology has played an important role in improving the specific power and fuel economy of internal combustion engines, reducing emissions, etc., and is known as an important milestone in the history of internal combustion engines. With the wide application of superchargers on internal combustion engines, there are more and more failures and damages of the entire engine caused by supercharger failures. At present, the reliability tests for turbochargers mainly include supercharger 120h durability thermal cycle assessment test, Hot and cold shock test, and high and low cycle fatigue test, etc. [0003] In order to solve the problem of fuel consumption of automobiles at idling speed, new energy-saving automobil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M7/08
Inventor 马朝臣张亚杰张志强曲荀之
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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