High-altitude atmospheric condition simulation test system of internal combustion engine

Abstract

The invention provides a high-altitude atmospheric condition simulation test system of an internal combustion engine. The system comprises an air inlet simulation device, an exhaust simulation device, a flexible connection guide pipe and a measurement and control device. The air inlet simulation device comprises an intake air throttling device, an intake air pressure stabilizing device and an intake air pressure sensor, and the intake air pressure stabilizing device is connected with the internal combustion engine through an internal combustion engine exhaust hose; the exhaust simulation device comprises an exhaust air throttling device, an exhaust air pressure stabilizing device, an exhaust air pressure sensor and an exhaust fan, the exhaust air pressure stabilizing device is connected with the internal combustion engine through an internal combustion engine exhaust hose, the exhaust fan is connected with the exhaust air throttling device through an exhaust fan intake air hose, the intake air throttling device, the exhaust air throttling device, the intake air pressure sensor and the exhaust air pressure sensor are electrically connected with the measurement and control device, and closed loop control is formed. Automatic control of the vacuum degree can be achieved through the high-altitude atmospheric condition simulation test system of the internal combustion engine, and great convenience is brought to plateau adaptability research, plateau emission research, plateau work process research and the like of the internal combustion engine.

Description

technical field [0001] The invention belongs to an internal combustion engine performance test system, in particular to a high-altitude atmospheric state simulation test system for an internal combustion engine. Background technique [0002] Internal combustion engines have been widely used in power machinery such as automobiles, military vehicles, agricultural machinery, engineering machinery, garden machinery, mobile and fixed power stations due to their high thermal efficiency, good adaptability and wide power. With the rapid development of industry and agriculture in the central and western regions of my country, the number of power machinery used in high-altitude areas such as road vehicles, construction machinery, agricultural machinery, garden machinery, mobile and fixed power stations is also increasing in our country. As we all know, the power, economy and environmental performance of internal combustion engines vary with different environmental conditions, among wh...

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Problems solved by technology

[0006] Aiming at the disadvantages of the existing high-altitude characteristic test device, such as huge investment, high test cost, inability to realize automatic adjustment, poor mobility, and large floor space, the present invention provides a high-altitude atmospheric state simulation test system for internal combustion engines. The system is used in plain areas. It can simulate the state of atmospheric pressure in high-altitude areas, which provides great convenience for the study of internal combustion engine plateau adaptability, plateau emission research, plateau working process research, etc.

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