Mounting structure of double-plunger fuel injection pump
A technology of installation structure and fuel injection pump, which is applied in the direction of fuel injection pump, fuel injection device, charging system, etc., can solve the problem of difficult layout of double plunger pumps, achieve full use of space, facilitate pumping of oil, vehicle compact effect
Active Publication Date: 2021-07-13
GUANGXI YUCHAI MASCH CO LTD
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Problems solved by technology
[0005] In order to make up for the above deficiencies, the present invention provides a double-plunger fuel injection pump installation structure, aiming at improving the problem that the existing double-plunger pumps are difficult to arrange
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Embodiment
[0033] see Figure 1-4 , the present invention provides an installation structure of a double-plunger fuel injection pump including a high-pressure oil pipe 100 , a connecting assembly 300 and a pressure regulating assembly 500 .
[0034] Among them, the connection assembly 300 is fixedly connected to the high-pressure oil pipe 100, the pressure regulating assembly 500 is fixedly connected to the connection assembly 300, and the connection assembly 300 is used to connect the high-pressure oil pipe 100 to collect the high-pressure oil, so as to facilitate the delivery of high-pressure oil in different directions, adjust The pressure assembly 500 is used for pressure regulation of high-pressure oil.
[0035] see Figure 1-4 , in some specific embodiments, the high-pressure oil pipe 100 is connected and fixed with a branch pipe 110, and the flange of the high-pressure oil pipe 100 is connected to the branch pipe 110 to facilitate the delivery of oil by the double plunger oil pum...
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The invention provides a mounting structure of a double-plunger fuel injection pump, and belongs to the technical field of engine diesel engines. The mounting structure of the double-plunger fuel injection pump comprises a high-pressure fuel pipe, a connecting assembly and a pressure regulating assembly. The connecting assembly comprises a shell, an oil conveying pipe and a non-return piece, the shell fixedly communicates with the high-pressure oil pipe, the oil conveying pipe fixedly communicates with the shell, an oil collecting cavity is formed in the shell, and the non-return piece is fixedly installed in the oil collecting cavity. The pressure regulating assembly comprises a plug, a connecting rod, a spring, a sleeve and a rotating rod. The plug is connected to the shell in a sliding mode, and the upper end of the connecting rod is fixedly connected to the plug. According to the mounting structure of the double-plunger fuel injection pump, oil is stored through the oil collecting cavity, the pressure of the oil in the oil collecting cavity is adjusted through the plug, the connecting rod and the rotating rod, the oil can be conveniently pumped out, oil conveying pipe is arranged in one orientation according to arrangement requirements, the space can be fully utilized, and the structure of a vehicle is more compact.
Description
technical field [0001] The invention relates to the technical field of diesel engines, in particular to an installation structure of a double plunger fuel injection pump. Background technique [0002] The fuel injection pump can be mainly divided into three types: plunger type fuel injection pump, fuel injection pump-fuel injector and rotor distribution type fuel injection pump. Among them, the plunger type fuel injection pump is the oldest and most widely used, with high reliability; the fuel injection pump - fuel injector is a combination of the two, directly installed on the engine cylinder head, which can eliminate the need for high-pressure fuel pipes. Adverse effects: The rotor distribution type fuel injection pump has only a pair of plungers, which mainly rely on the rotation of the rotor to realize the pressurization and distribution of fuel. It has the characteristics of small size, light weight, convenient use, and low cost. [0003] At present, the outlet of the ...
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IPC IPC(8): F02M59/02F02M59/44F02M59/46
CPCF02M59/02F02M59/464F02M59/44
Inventor 韦礼万莫宗华罗名雄
Owner GUANGXI YUCHAI MASCH CO LTD