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Test method and device for turbocharger bench exhaust brake

A turbocharger and exhaust braking technology, applied in the field of turbochargers, can solve problems such as difficult to detect data, increase the cost of turbochargers, prolong the development cycle of turbochargers, etc., and achieve verification Effects on Structural Reliability

Active Publication Date: 2017-08-08
HUNAN TYEN MACHINERY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the road test of the turbocharger, due to the complex road conditions and various working conditions, it is difficult to detect all the data related to the operation of the turbocharger; The corresponding performance and reliability tests have been passed. If the problem is found in the road test stage, it will not only prolong the development cycle of the turbocharger, but also increase the cost of the road test test of the turbocharger during the development process. cost

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  • Test method and device for turbocharger bench exhaust brake
  • Test method and device for turbocharger bench exhaust brake

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Experimental program
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Embodiment Construction

[0024] A turbocharger bench exhaust brake test method. During the test, the turbocharger 12 is installed on the turbocharger test bench 11, and the exhaust gas outlet on the turbocharger test bench 11 is connected to the turbine The exhaust gas inlet of the supercharger 12 is connected, and the exhaust gas outlet of the turbocharger 12 is connected with the turbocharger back-end pipe 6 in the exhaust brake test device of the turbocharger bench.

[0025] The specific test method is as follows:

[0026] A. Before the test, program the multi-channel paperless recorder 1 for timing control. The test cycle is T, the opening time of the three-way exhaust brake butterfly valve 7 is t1, and the closing time of the three-way exhaust brake butterfly valve 7 is t2, where T, t1, and t2 are set according to the test requirements, and t1+t2 is a cycle.

[0027] B. Then under the condition of cold blowing of the turbocharger 12, the valve opening adjustment device 8 is used to adjust the opening o...

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Abstract

A turbocharger bench exhaust braking test method. During the test, the turbocharger is installed on the turbocharger test bench, and the exhaust gas outlet on the turbocharger test bench is connected to the turbocharger. The exhaust gas inlet of the turbocharger is connected, and the exhaust gas outlet of the turbocharger is connected to the vortex rear pipeline in the exhaust brake test device of the turbocharger bench. By simulating automobile exhaust braking conditions on the turbocharger bench, detecting parameters such as the speed, temperature, and pressure of the turbocharger, mastering the operating conditions of the turbocharger, and providing a reliable basis for the design of the turbocharger .

Description

Technical field [0001] The invention relates to the technical field of turbochargers, in particular to a method and a device for testing the operating conditions of a turbocharger on a turbocharger bench under simulating automobile exhaust brake working conditions. Background technique [0002] The turbocharger can not only improve the utilization rate of energy, but also reduce the pollution of the car exhaust to the air, especially the technology is an important way to restore the engine power in the plateau area. With the wide application and maturity of supercharging technology, various OEMs have also put forward higher and higher requirements for turbochargers from development to testing, which not only require turbochargers to be reliable under engine exhaust braking conditions. It also requires the turbocharger to have good thermal shock and high and low speed shock. [0003] At present, all OEMs use the whole vehicle road test to grasp the operation of the turbocharger dur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M15/00
Inventor 刘晓东陈预宾王益堂杨芳
Owner HUNAN TYEN MACHINERY