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Test bed for turbocharger startup and shutdown impact tests

A turbocharger and impact test technology, applied in the field of test benches, can solve the problems of testing the reliability of turbochargers without turbocharger start-stop working conditions, and cannot assess the reliability of urban vehicle turbochargers, etc., to achieve structural Simple, performance-enhancing, easy-to-implement effects

Inactive Publication Date: 2015-11-11
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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  • Test bed for turbocharger startup and shutdown impact tests

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Embodiment Construction

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

[0018] A test bench for turbocharger start-stop impact testing, such as figure 1 As shown, the test bench includes two branches - the first branch and the second branch. The two sets of turbochargers in the two branches are identical, and share the external air source intake pipe 1, combustion chamber 2, combustion Chamber outlet pipe 3, high temperature switching valve 4;

[0019] The first turbocharger includes a first compressor 8 and a first turbine 9; the second turbocharger includes a second compressor 13 and a second turbine 12;

[0020] The first branch includes an external air source intake pipe 1, a combustion chamber 2, a combustion chamber outlet pipe 3, a high temperature swit...

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Abstract

The invention relates to a test bed for turbocharger startup and shutdown impact tests and belongs to the power machinery technical field. The test bed includes an outer air source air intake pipeline, a combustion chamber, a combustion chamber outlet pipe, a high-temperature conversion valve, a first branch and a second branch; two sets of turbochargers in the two branches are exactly the same; and an external air source is adopted to supply air. The invention also discloses a turbocharger startup and shutdown impact test method which can provide basis for turbocharger startup and shutdown impact reliability. The test bed provided by the invention has the advantages of being scientific, reasonable, stable and reliable as well as easiness in implementation, and has an important application value in improving the reliability of the turbochargers.

Description

technical field [0001] The invention relates to a test bench for the start-stop impact test of 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-sav...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/00
Inventor 马朝臣张亚杰曲荀之
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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