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Teaching and practical training apparatus for fuel oil supply system of heavy-duty diesel engine

A heavy-duty diesel engine and training device technology, which is applied to teaching models, space navigation condition simulation devices, simulators, etc., can solve problems such as weak operation of automobiles, complex oil circuits in diesel fuel supply systems, and self-extinguishing, so as to improve teaching efficiency effect

Inactive Publication Date: 2017-03-08
TIANJIN UNITE AUTOMOBILE ELECTRONICS CONTROL TECH SERVICE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The fuel supply system of heavy-duty diesel engines can be divided into oil suction circuit, low-pressure oil circuit and high-pressure oil circuit according to the different working pressures. Problems in the fuel supply process at each stage will affect the working conditions of heavy-duty vehicles, and the vehicles will run weakly. Self-extinguishing and other issues
The oil circuit of the fuel supply system of diesel engine is complicated, it is difficult for beginners to grasp its structure and working process, and it is even more difficult to find problems and troubleshoot

Method used

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  • Teaching and practical training apparatus for fuel oil supply system of heavy-duty diesel engine

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Embodiment Construction

[0013] The working process of the fuel supply system is as follows: The diesel engine fuel pump assembly includes the fuel transfer pump, fuel injection pump, smoke limiter, timing device, governor and pump body bleed screw. When the fuel transfer pump is working, the fuel is sucked out from the fuel tank assembly through the primary fuel filter and the fuel injection pipe, and the impurities with larger particles are filtered out by the primary fuel filter, and then the fine impurities are filtered out by the fine fuel filter. Impurities enter the low-pressure chamber of the fuel injection pump assembly. The fuel injection pump is also called the high-pressure fuel pump. The plunger of the fuel injection pump pressurizes the fuel to 60MPa and sends it to the fuel injector through the high-pressure fuel pipe. When the fuel pressure reaches about 22MPa, the fuel injector in the fuel injector opens and passes The fuel injection hole is sprayed into mist and mixed with air in the...

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Abstract

The invention provides a teaching and practical training apparatus for a fuel oil supply system of a heavy-duty diesel engine, wherein the apparatus is used for teaching and practical training of a fuel oil supply system of a heavy-duty diesel engine. On the basis of material object simulation, the student can understand and master knowledge of the construction, composition, working principle, troubleshooting of the fuel oil supply system of the diesel engine rapidly, so that the teaching efficiency is improved. The apparatus is composed of an experiment rack, a display panel, a fuel pump assembly, a motor, a fuel injector and a fuel filter and is characterized in that the fuel pump assembly is fixed above the right side of the experiment rack; a fuel coarse cleaner, a fuel refined cleaner, and a motor with a fuel pump are connected successively in the experiment rack below the fuel pump assembly from left to right; and the upper side of the fuel pump assembly is connected with the fuel injector by an injector pipe. Besides, a fuel circulation button and a work indication light are arranged on the display panel.

Description

technical field [0001] The invention belongs to the field of auto repair teaching equipment, and relates to a teaching and training device for a fuel supply system of a heavy-duty diesel engine, which can be used for maintenance, fault diagnosis and elimination, and system maintenance practice and training of the fuel supply system of an automobile. Background technique [0002] The fuel supply system of heavy-duty diesel engines can be divided into oil suction circuit, low-pressure oil circuit and high-pressure oil circuit according to the different working pressures. Problems in the fuel supply process at each stage will affect the working conditions of heavy-duty vehicles, and the vehicles will run weakly. Self-extinguishing and other issues. The oil circuit of the diesel fuel supply system is complicated, and it is difficult for beginners to grasp its structure and working process, and it is even more difficult to find problems and troubleshoot them. In order to solve t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B9/00G09B25/02
Inventor 王征
Owner TIANJIN UNITE AUTOMOBILE ELECTRONICS CONTROL TECH SERVICE