Engine plateau environment laboratory

A plateau environment and engine technology, applied in engine testing, machine/structural component testing, measuring devices, etc., can solve the problem of inability to simulate and concentrate in one, the plateau environment is not realistic enough, and the accuracy and efficiency of the engine high-altitude environment test are affected. problems to ensure accuracy and efficiency

Inactive Publication Date: 2010-07-28
MILITARY TRANSPORTATION UNIV PLA
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AI Technical Summary

Problems solved by technology

These test benches cannot integrate the simulation of scattered high-altitude natural environmental conditions (air pressure, temperature, humidity), and the simulated plateau environment is not realistic enough, which affects the accuracy and efficiency of engine high-altitude environmental tests

Method used

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  • Engine plateau environment laboratory
  • Engine plateau environment laboratory

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Embodiment Construction

[0016] As shown in the figure: an engine plateau environment laboratory, which consists of an intake pressure simulation system, an exhaust pressure simulation system, a high and low temperature control cabin 2 for placing the engine 1 and a control system. The intake air pressure simulation system is composed of an intake air regulator box, a low temperature box 18 and a refrigeration unit 19 connected in sequence. An air flow meter 3, an air intake electric regulating valve 4, a pressure sensor 5 and a three-way valve 6 are installed on the pipeline connecting the box and the low temperature box, and a pressure sensor 7 and a temperature sensor 8 are installed on the air intake stabilizing box. The exhaust pressure simulation system consists of an exhaust heat exchanger, an exhaust pressure regulator box, an exhaust electric regulating valve, a vacuum pump and a gas-water separator. The inlet of the exhaust heat exchanger 9 communicates with the air outlet of the engine plac...

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Abstract

The invention relates to an engine plateau environment laboratory which comprises an intake pressure simulation system, an exhaust pressure simulation system, a high and low temperature control chamber and a control system. The high and low temperature control chamber is used for placing an engine, the intake pressure simulation system is formed by sequentially connecting an intake pressurizer tank, a low-temperature box body and a refrigeration unit, and the exhaust pressure simulation system comprises an exhaust heat exchanger, an exhaust pressurizer tank, an exhaust electric control valve, a vacuum pump and a gas-water separator. Dispersive high-altitude natural environmental conditions (pressure, temperature and moisture) are intensively simulated in the laboratory, thereby improving the precision and the efficiency of the engine high-altitude environmental experiments.

Description

Technical field: [0001] The invention belongs to experimental equipment, in particular to an engine plateau environment laboratory. Background technique: [0002] When a car is driving on a plateau, the increase in altitude has a significant impact on engine performance. As the altitude increases, the engine will generally have problems such as difficulty in starting, decreased power, worsened economy, and serious emission pollution. Engines of different models and uses have different degrees of performance degradation. The reason is mainly due to the influence of atmospheric conditions such as low pressure and low temperature in the plateau area. [0003] Studying and discussing the influence of atmospheric conditions on engine performance in high altitude areas is the basis and premise of carrying out research on the high altitude performance of automotive engines, and can improve the engine combustion process, reduce fuel consumption and emission pollution, as well as de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M15/00G01M15/02
Inventor 刘瑞林董素荣周广猛刘刚许翔
Owner MILITARY TRANSPORTATION UNIV PLA
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