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Fuel injection simulation experiment system capable of continuously regulating pressure and temperature

A technology of fuel injection and pressure adjustment, which is applied in the direction of fuel injection device, charging system, engine test, etc. It can solve the problems of limited system simulation working conditions and inability to simulate working conditions and environment, and achieve a wide range of fuel temperature adjustment, Compact structure, high pressure effect

Pending Publication Date: 2017-05-31
北京科领动力科技有限公司
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  • Abstract
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Problems solved by technology

However, due to the physical characteristics of water, the whole system cannot simulate the working conditions below 0°C and above 100°C
This makes the system simulation very limited

Method used

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  • Fuel injection simulation experiment system capable of continuously regulating pressure and temperature

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Embodiment Construction

[0043]The fuel injection test system with adjustable pressure and temperature is mainly composed of a gas cylinder 30 (for example, the internal gas pressure is 10-20MPa, especially 15MPa), a pressure regulating valve 11 (for example, the pressure adjustment range is 0-10MPa), a low-pressure release valve 12, a low-pressure Oil pump 13 (for example, the pressure ratio is 1:1), pressure regulating valve 21 (for example, the pressure adjustment range is 0-1MPa), high pressure relief valve 22, high pressure oil pump 23 (for example, the pressure ratio is 1:80), filter 31, heat Exchanger 32, oil pressure gauge 33, oil temperature gauge 34, oil tank 35, oil filter 36, oil drain valve 37, fuel injector 38, integrated cooling and heating machine 39, switch S1~S5 is formed. Due to the small pressure ratio of the low-pressure fuel pump, a relatively large initial air pressure is required to pressurize the fuel, and the maximum adjustment range of the corresponding pressure regulating va...

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Abstract

The invention relates to a control method of a fuel injection simulation system capable of regulating pressure and temperature. The fuel injection simulation system realizes a high-pressure fuel supply mode and a low-pressure fuel supply mode for supplying fuel through a high-pressure fuel pump and a low-pressure fuel pump and utilizes silicone oil to control temperature. Thus, the fuel injection simulation system can simulate the character of fuel injection under various conditions and particularly can simulate the character of fuel injection under extreme conditions.

Description

technical field [0001] The invention belongs to the field of simulation testing of fuel spray characteristics, in particular to the real simulation of nozzle fuel injection characteristics of various engines under various conditions. Background technique [0002] At present, there are relatively few researches on the spray characteristics of constant volume bombs in China, and the fuel injection pipeline and oil pump borrow the structure of the existing engine, and only the original design fuel injection pressure of the engine can be used. The fuel injection temperature is determined with the room temperature, and different temperatures cannot be compared. and spray characteristics under pressure. In addition, when using constant volume bombs to study spray characteristics, some commonly used working conditions are considered, and some extreme conditions are considered unnecessary. Such prejudice hinders those skilled in the art from researching fuel injection simulation sys...

Claims

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Application Information

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IPC IPC(8): F02M65/00
CPCF02M65/001
Inventor 杨俊超赵彦光贾毓鼎李伟轩赵晨戚建良
Owner 北京科领动力科技有限公司
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