Device for testing start/stop service life of turbocharger

A turbocharger and life testing technology, which is applied in the field of power machinery, can solve problems such as complex structure, easy failure, and large energy consumption, and achieve the effects of simple structure, improved performance, and energy saving

Active Publication Date: 2017-04-26
BEIJING INSTITUTE OF TECHNOLOGYGY
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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, the existing turbocharger start-stop impact test device requires two sets of turbochargers, which makes the structure complex and has different problems.
For example, patents with publication numbers 105043779A and 105043754A both require air supply from an external source, resulting in excessive energy consumption during the test
The patents with publication numbers 105203330A and 105203288A do not require external air supply, but the reliability of the high-temperature switching valve is low, and it is prone to failure, which reduces the reliability of the entire test device, and it is easy to switch between the two channels. A recirculation of the intake air in the combustion chamber intake port occurs, causing the combustion chamber to stall

Method used

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  • Device for testing start/stop service life of turbocharger

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Embodiment Construction

[0022] 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.

[0023] A turbocharger start-stop life testing device, comprising: a turbocharger, a compressor outlet pipeline 4, a combustion chamber outlet pipeline 7, a combustion chamber 8, an air pump flow valve 9 and an air pump 10, and a combustion chamber intake pipeline 11;

[0024] Described turbocharger is made up of 5-compressor; 6-turbine;

[0025] Connection relationship: the combustion chamber 8 is connected with the turbocharger; the outlet end of the combustion chamber 8 is connected with the turbine 6 of the turbocharger through the combustion chamber outlet pipeline 7; the combustion chamber inlet pipeline 11 of the combustion chamber 8 is connected with the compressor 5 The compressor o...

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Abstract

The invention relates to a device for testing the start/stop service life of a turbocharger, especially relates to a gas-storage type device for testing the start/stop service life of the turbocharger and belongs to the technical field of power machines. The device comprises an air tank, an air pump, a combustion chamber and corresponding pipe adjusting valves. The device employs a self-circulation operation mode. In multiple start/stop circulation tests, the device employs the air stored in a last self-circulation operation process for start again. The device is scientific and reasonable in test bench scheme, is easy to implement, is stable and reliable, and is high in value for the improvement of the reliability of a turbocharger.

Description

technical field [0001] The invention relates to a start-stop life testing device for a turbocharger, in particular to a gas storage type turbocharger start-stop life test device, 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 reduce the fuel ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/00
CPCG01M13/00
Inventor 马朝臣黄达鸣张亚杰
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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