High-altitude simulation test device of engine-driven pressure system
A technology of engine drive and air pressure system, which is applied in the direction of engine testing, measuring devices, machine/structural component testing, etc., and can solve the problems of reducing the reliability and service life of the air pressure system, affecting the performance of the air pressure system, and insufficient system output pressure, etc.
Inactive Publication Date: 2014-02-12
MILITARY TRANSPORTATION UNIV PLA
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Problems solved by technology
[0003] 1. Influence of plateau environment on engine performance
[0004] Mainly reflected in: power decline, economic deterioration; matching turbocharger performance, emission performance deterioration; heat load increase, cooling system cooling capacity decline; cold start difficulty, etc.
[0005] 2. The influence of the plateau environment on the performance of the barometric system
[0006] Mainly reflected in: due to the decline in engine performance, the performance of the matching air pressure system is limited and affected to a certain extent. The air circuit and filter of the air compressor are easy to be blocked, resulting in insufficient output pressure of the system, unstable operation, and even stuck faults; moreover, the compressed air output from the air compressor will contain a large amount of impurities, which greatly reduces the reliability of the air pressure system. Sex and service life
Method used
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[0021] See attached figure 1 , the high-altitude simulation test device for the engine-driven pneumatic system of the present invention is characterized in that it includes the pneumatic system and its power system.
[0022] The power system includes a diesel engine 1 (engine), and is also provided with a dynamometer 2 and an engine control system 3 for measuring and controlling the operating conditions of the diesel engine 1. The diesel engine 1 and the dynamometer 2 are coaxially installed, and the engine The control system 3 indirectly measures and controls the performance parameters of the diesel engine 1;
[0023] The power system also includes an intake pressure simulation system communicated with the intake port of the diesel engine 1 , and an exhaust pressure simulation system communicated with the exhaust port of the diesel engine 1 .
[0024] The intake air pressure simulation system includes an air intake regulator box 4, and an intake electric regulating valve 5 i...
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The invention discloses a high-altitude simulation test device of an engine-driven pressure system. The high-altitude simulation test device comprises a pressure system and a power system of the pressure system, and is to simulate different altitude low-pressure environments to carry out the plateau simulation test for an air compressor. The high-altitude simulation test device of the engine-driven pressure system tests performance changes of the engine and the engine-driven pressure system under different altitude atmospheric pressures, which mainly comprise under different altitudes and different atmospheric pressures, time for the air pressure of an air reservoir, which raises from 0 and raises 100 kPa every time, time for the air reservoir to reach the highest pressure, air suction flow and other parameters, so as to assess the plateau performance of the engine-driven pressure system which takes the engine as a power source.
Description
technical field [0001] The invention relates to the technical field of an engine-driven pneumatic system, in particular to a high-altitude simulation test device for an engine-driven pneumatic system. Background technique [0002] When the pneumatic system with the engine as the power source is operated in plateau areas, there are usually problems such as deterioration of work performance, decrease of work ability, increase of failure rate and deterioration of reliability. The reason is mainly the following two points: [0003] 1. Influence of plateau environment on engine performance [0004] Mainly reflected in: power decline, economic deterioration; matching turbocharger performance, emission performance deterioration; heat load increase, cooling system cooling capacity decline; cold start difficulty, etc. [0005] 2. Influence of the plateau environment on the performance of the barometric system [0006] Mainly reflected in: due to the decline in engine performance, ...
Claims
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Inventor 刘瑞林董素荣孟军叶鹏周磊
Owner MILITARY TRANSPORTATION UNIV PLA