Method and device for performing exhaust braking testing through turbocharger testing block
A turbocharger and exhaust braking technology, applied in the field of turbochargers, can solve the problems of difficulty in detecting data, prolonging the development cycle of turbochargers, increasing the cost of turbochargers, etc. The effect of structural reliability
Active Publication Date: 2015-01-21
HUNAN TYEN MACHINERY
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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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[0024] A turbocharger bench exhaust braking test method, during the test, the turbocharger 12 is installed on the turbocharger test bench 11, 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 post-vortex pipeline 6 in the turbocharger bench exhaust brake test device.
[0025] The specific test method is as follows:
[0026] A. Before the test, the multi-channel paperless recorder 1 is programmed to carry out timing control. The test cycle period 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 t1. 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 opening degree of the three-way exhaust brake ...
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The invention discloses a method for performing exhaust braking testing through a turbocharger testing block. During testing, a turbocharger is installed on the turbocharger testing block, an exhaust gas outlet in the turbocharger testing block is connected with an exhaust gas inlet in the turbocharger, and an exhaust gas outlet in the turbocharger is connected with a rear vortex pipeline in a device for performing exhaust braking testing through the turbocharger testing block. By simulating the exhaust braking conditions of an automobile on the turbocharger testing block, the parameters such as rotating speed, temperature and pressure of the turbocharger are detected, the operation conditions of the turbocharger are mastered, and therefore a reliable basis is provided for turbocharger designing.
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 under simulated automobile exhaust braking conditions on a turbocharger stand. Background technique [0002] The turbocharger can not only improve the utilization rate of energy but also reduce the air pollution caused by automobile exhaust, especially this technology is an important way to restore engine power in plateau areas. With the wide application and maturity of supercharging technology, various OEMs have put forward higher and higher requirements for turbochargers from development to matching and testing, not only requiring the reliability of turbochargers under the condition of engine exhaust braking. Second, 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 statu...
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IPC IPC(8): G01M15/00
Inventor 刘晓东陈预宾王益堂杨芳
Owner HUNAN TYEN MACHINERY