High-speed response electromagnetic valve type fuel injector for motorcycle

A solenoid valve, motorcycle technology, used in machines/engines, fuel injection devices, engine components, etc., can solve the problems of high-speed engine matching, insufficient response time, etc., to achieve high power and torque, fast response speed, Improve the effect of suction

Active Publication Date: 2011-06-22
LIUZHOU YUANCHUANG EFI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main technical problem to be solved by the present invention is to provide a high-speed response solenoid valve fuel injector for motorcycles to solve the problem that the response time of general solenoid valve fuel injectors is not fast enough to perform well with high-speed engines used in motorcycles. matching problem

Method used

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  • High-speed response electromagnetic valve type fuel injector for motorcycle
  • High-speed response electromagnetic valve type fuel injector for motorcycle
  • High-speed response electromagnetic valve type fuel injector for motorcycle

Examples

Experimental program
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Effect test

Embodiment 1

[0036] figure 1 Disclosed in is a motorcycle high-speed response electromagnetic valve fuel injector, which consists of an electrode 1, a housing 2, an oil cap, an oil seal ring 4, a filter screen 5, a limit tube 6, a main shaft 7, an electromagnetic coil 8, The return spring 9, the valve core 10, the air seal ring 11, the valve seat 12, the oil injection orifice 13, the sealing steel ball 14, the protective sleeve 15 and the magnetic conduction sleeve 16 are composed of the electrode 1, the main shaft 7, the electromagnetic coil 8, The magnetic sleeve 16 forms the electromagnetic circuit assembly that generates electromagnetic force; the valve core 10, the valve seat 12, and the sealing steel ball 14 form the valve assembly that generates the action of opening and closing the valve and realizes the sealing function under the action of electromagnetic force; the limit tube 6, The return spring 9 and the oil injection orifice 13 form a flow adjustment assembly that adjusts and...

Embodiment 2

[0039] Embodiment two (best embodiment):

[0040] Figure 3 ~ Figure 7 Disclosed in is another high-speed response solenoid valve fuel injector for motorcycles, its basic structure is the same as that of Embodiment 1, the difference is that the oil cap is a rotary oil cap 3 that can be rotated by 180°, The rotary oil cap 3 is an inverted 7-shaped structure composed of an oil cap body 301 and an oil inlet nozzle 302 integrated with the top of the oil cap body. The oil cap body 301 is installed on the spindle oil inlet 7011 and outside the housing 2 , and the oil cap body 301 and the oil inlet nozzle 302 are provided with an oil inlet passage 303 connected with the main shaft oil inlet 7011; the shell is provided with a surface that is matched with the oil cap body so that the rotating oil cap can be used for 180 ° rotation limit protrusion; the housing 2 is also provided with a mounting boss 201 on one side, and a mounting hole 2011 is opened longitudinally in the mounting bos...

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PUM

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Abstract

The invention relates to a high-speed response electromagnetic valve type fuel injector for a motorcycle, in particular relating to a fuel injector which comprises a shell, a limit pipe, an electromagnetic coil, a return spring, a valve plug, a valve seat, seal steel balls, a fuel injection pore plate and a flux sleeve, wherein the shell is internally provided with a main shaft of an integrated type turbular structure; the small end inner bore of the main shaft is sequentially provided with the limit pipe and the return spring; the large end inner bore of the main shaft is sequentially provided with the valve plug and the valve seat; the small end and large end of the main shaft are transitionally integrated at the end surface coordination part of the main shaft and the valve plug; the high-speed response electromagnetic valve type fuel injector provided by the invention is also provided with a rotary fuel cap capable of rotating by 180 degrees; and one side of the shell is provided with a mounting hole,and the other side of the shell is provided with a locating pin. According to the invention, the main shaft and a magnectic shield are designed to be integrated, not only can the magnetic flux of an electromagnetic return circuit be increased effectively, but also the residual magnetism of the electromagnetic return circuit is reduced, and the suction force of the valve plug is improved greatly, thus the resoponse speed of the fuel injector is improved, and the high-speed response electromagnetic valve type fuel injector provided by the invention has the advantages of simple structure and low manufacturing cost, and can be adaptive to the mounting requirement of the narrow space of the motorcycle.

Description

technical field [0001] The invention relates to a fuel injector, in particular to a high-speed response solenoid valve fuel injector for motorcycles. Background technique [0002] At present, the solenoid valve fuel injectors used in high-speed engines such as motorcycles are not well matched with the high-speed engines of motorcycles because the response time of the fuel injectors is not fast enough. Moreover, most existing motorcycle fuel injectors are replaced by automobile fuel injectors, and the fast closing structure of automobile fuel injectors is generally as follows Figure 8 As shown, the guide sleeve 18 with the spool 10' inside is welded with a magnetic isolation sleeve 20 at the end adjacent to the iron core 19. Since the guide sleeve 18, the iron core 19 and the magnetic isolation sleeve 20 are of split design, therefore, The cross-sectional area of ​​the joint between the guide sleeve 18 and the iron core 19 is small, resulting in a small magnetic flux of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M51/06
Inventor 唐凤君黎艺文
Owner LIUZHOU YUANCHUANG EFI TECH
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