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Cabin type diesel engine plateau low-temperature starting test device and method

A low-temperature starting and test device technology, applied in the direction of internal combustion engine testing, etc., can solve the problems of affecting the life of the engine, inability to start or difficult to start, wear of key components of the engine cylinder liner, etc., to achieve the effect of good repeatability and short test period

Active Publication Date: 2021-08-10
MILITARY TRANSPORTATION UNIV PLA
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AI Technical Summary

Problems solved by technology

[0002] Power equipment such as vehicle equipment, construction machinery, and generator sets in plateau areas often cannot be started or is very difficult to start, and forced starting in a cold state will lead to increased wear of key components such as engine cylinder liners and pistons, which will affect the life of the engine

Method used

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  • Cabin type diesel engine plateau low-temperature starting test device and method

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] A low-temperature start-up test device for a cabin diesel engine at plateau such as figure 1 As shown, the test cabin is connected to the vacuum pump 8 through the cabin penetration pipeline, and the electric valve 2 4 and the electric valve 4 6 are installed on the cabin penetration pipeline. The pipeline of 2 is connected to the refrigerating unit-3, and the refrigerating unit-3 is connected to the fan 1 through the pipeline; a diesel engine 18 is placed in the test cabin, and the diesel engine 18 is connected to the exhaust radiator 10 placed outside the test cabin through the exhaust pipeline. The exhaust radiator 10 is sequentially connected with the exhaust buffer tank 21, the vacuum pump 8, and the oil-water separator 7, and the connection pipeline between the exhaust buffer tank 21 and the vacuum pump 8 is provided with an electric valve 35;

[0022] Di...

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Abstract

The invention discloses a cabin type diesel engine plateau low-temperature starting test device and method. A test chamber of the device is connected with a vacuum pump through a chamber penetrating pipeline, the test chamber is connected with a refrigerating unit II through a pipeline, and a refrigerating unit I is connected with a fan through a pipeline. An exhaust radiator is sequentially connected with an exhaust buffer tank, a vacuum pump and an oil-water separator; a diesel engine starting storage battery is connected with a diesel engine; an accelerator actuator is connected with an engine oil supply system and a control and data acquisition module; the two ends of a combustion analyzer are connected with engine exhaust and control and a data acquisition module respectively; an ECU and the data acquisition module are respectively connected with a display terminal; a fuel heater is connected with a fuel tank through an oil pipeline with an oil pump; and the exhaust is connected with a diesel engine exhaust pipe through a pipeline. The device and the method can be used to carry out diesel engine starting performance test and evaluation at different altitudes and different temperatures, and have the characteristics of short test period, good repeatability and the like.

Description

technical field [0001] The invention relates to the field of diesel engine research, and more specifically relates to a low-temperature start-up test device and method for a cabin-type diesel engine on a plateau. Background technique [0002] Power equipment such as vehicle equipment, construction machinery, and generator sets in plateau areas often cannot be started or is very difficult to start, and forced starting in a cold state will lead to increased wear of key components such as engine cylinder liners and pistons, which will affect the life of the engine. According to relevant data, the difficulty of starting a diesel engine at an altitude of 4000m and -25°C is equivalent to the starting condition at a low temperature of -40°C in plain areas. Therefore, it is of great significance to study the influence mechanism of plateau environment on the starting process of diesel engine and develop low-temperature starting device for diesel engine to improve the plateau environm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M15/04
CPCG01M15/04Y02T10/40
Inventor 董素荣刘瑞林刘增勇周广猛张众杰
Owner MILITARY TRANSPORTATION UNIV PLA
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