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A positioning device for installing a fuel injector on a diesel engine

A technology for positioning devices and fuel injectors, which is applied to fuel injection devices, machines/engines, and charging systems. It can solve problems such as oil leakage and cylinder head covers that cannot be installed, and achieves convenient manufacturing, fast and convenient fixing and disassembly, and The effect of low production cost

Active Publication Date: 2016-07-06
ZHEJIANG XINCHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the angles of the four injectors are not installed properly, the cylinder head cover cannot be installed after the injectors are fixed; or if the installation angles of the four injectors are slightly deviated, after the cylinder head cover is installed, the There is a risk of oil leakage at the sealing rings of the four holes on the side of the cover

Method used

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  • A positioning device for installing a fuel injector on a diesel engine
  • A positioning device for installing a fuel injector on a diesel engine
  • A positioning device for installing a fuel injector on a diesel engine

Examples

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Embodiment

[0021] Example: see Figures 1 to 4 As shown, a positioning device for installing a fuel injector on a diesel engine includes a cylinder head 1 installed on the cylinder, a number of fuel injectors 2 are arranged on the cylinder head 1, and an oil inlet arm 21 is formed on the fuel injector 2. A positioning baffle 5 is installed on the cylinder head 1, and the positioning baffle 5 is composed of a cross bar 51, a vertical bar 53 and a stopper 54. A plurality of vertical bars 53 are formed on the horizontal bar 51, and the top of the vertical bar 53 is formed with a directional horizontal bar. 51 side extension block 54, the side wall of the block 54 is formed with a slope 55, the oil inlet arm 21 of the injector 2 leans against the slope 55 of the positioning baffle 5, and the two sides of the cross bar 51 The end is formed with a pin hole 52, and the positioning pin 6 is inserted into the cylinder head 1 through the pin hole 52 of the cross bar 51; Cover 1.

[0022] The inj...

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PUM

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Abstract

A positioning device for installing a fuel injector on a diesel engine, including a cylinder head installed on a cylinder, a number of fuel injectors are arranged on the cylinder head, an oil inlet arm is formed on the fuel injector, and a positioning baffle is arranged on the cylinder head , the positioning baffle is composed of a cross bar, a vertical rod and a stopper. A number of vertical rods are formed on the crossbar. The top of the vertical rod is formed with a stopper extending to the side of the crossbar. The side wall of the stopper is formed with a slope , the oil inlet arm of the injector leans against the slope of the positioning baffle, pin holes are formed at both ends of the cross bar, and the positioning pins pass through the pin holes of the cross bar and are plugged into the cylinder head; The fuel injector is fixed on the cylinder head through the injector pressure plate and the fuel injector pressure plate bolts. It uses a new type of positioning device to position the fuel injector and then fasten it, so that the installation angle of the fuel injector can be accurately positioned, which facilitates the installation of the cylinder head cover, and also solves the problem of sealing rings in the four holes on the side of the cylinder head cover risk of oil spills.

Description

Technical field: [0001] The invention relates to the technical field of a positioning device on a diesel engine, in particular to a positioning device for installing a fuel injector on a diesel engine. Background technique: [0002] At present, the traditional two-valve diesel engine is limited by the arrangement of the intake and exhaust valves. The fuel injector usually deviates from the cylinder centerline and is inclined at a certain angle to the cylinder axis, which leads to the eccentric design of the combustion chamber on the top of the piston. The formation of gas, the organization of the combustion process, the thermal load on the piston and the cooling of the nose area of ​​the cylinder head are all very unfavorable. The inclined position of the fuel injector will also cause uneven fuel injection from each nozzle hole of the fuel injector, incomplete combustion and poor emission. [0003] The center of the fuel injector of the four-valve diesel engine is arranged ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02M61/14F02F1/24
Inventor 胡文君
Owner ZHEJIANG XINCHAI
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