Motorcycle fuel injector

Abstract

The utility model provides a motorcycle fuel injector which is characterized in that the motorcycle fuel injector comprises a fuel injector body flow channel assembly which is separated from a fuel injector body, the upper end of the flow channel assembly is connected with the fuel injector body through a second sealing ring, and the lower end of the flow channel assembly is connected with the fuel injector body through a welding seam. The fuel injector body and the flow channel assembly are designed in a separated mode and connected through the second sealing ring, rigid connection is reduced, the flow channel assembly is firstly subjected to relevant tests and then assembled after being qualified, and the rejection rate of the fuel injector is reduced.

Description

Technical Field

[0001] The utility model relates to a fuel injector for a motorcycle. Background Art

[0002] Most of the motorcycle fuel injectors currently in use use the structure of automobile fuel injectors, and the noise has not been reduced. However, motorcycle customers are more sensitive to noise, which leads to complaints. In addition, there is a certain defective rate in the production process of fuel injectors, and the cost of scrapping products using the structure of automobile fuel injectors during the production process is relatively high. Utility Model Content

[0003] The purpose of the utility model is to solve the above problems in the existing technology and propose a motorcycle fuel injector, in which the fuel injector body and the flow channel assembly are designed to be separated and connected by two sealing rings to reduce the rigid connection. The flow channel assembly is first subjected to relevant tests and then assembled after passing the tests, thereby reducing the scrap rate of the fuel injector.

[0004] The purpose of the utility model can be achieved through the following technical solutions: a motorcycle fuel injector, characterized in that it comprises:

[0005] Injector body;

[0006] The flow channel assembly is designed to be separated from the fuel injector body. The upper end of the flow channel assembly is connected to the fuel injector body through a second sealing ring, and the lower end of the flow channel assembly is connected to the fuel injector body through a weld.

[0007] Furthermore, the injector body includes an injection molded body, a coil terminal, a skeleton, an electromagnetic ring and a magnetic conductive cover. The electromagnetic ring is sleeved on the outside of the skeleton and an enameled wire is provided between the electromagnetic ring and the skeleton bracket. The injection molded body is arranged at the upper end of the electromagnetic ring and a magnetic conductive cover is provided between the electromagnetic ring and the electromagnetic ring, and the coil terminal is arranged at the outermost end of the injection molded body.

[0008] Furthermore, the flow channel assembly includes an oil inlet seat, a positioning pin, a valve core, a valve seat and a spray hole plate, the positioning pin is arranged in the oil inlet seat, the valve core is arranged below the positioning pin and a spring is arranged between the two, the valve seat is arranged below the valve core, the spray hole plate is arranged at the outlet end of the valve seat, and the inlet end of the oil inlet seat is provided with a filter.

[0009] Furthermore, a sealing ring three is provided at the lower end of the electromagnetic ring.

[0010] Furthermore, a sealing ring 1 is provided on the upper end of the oil inlet seat.

[0011] Compared with the prior art, the advantages of the present application are: the injector body and the flow channel assembly are designed to be separated, and a sealing ring is used for connection to reduce rigid connection, and the flow channel assembly is first subjected to relevant tests and then assembled after passing the tests, thereby reducing the scrap rate of the injector. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of a motorcycle fuel injector;

[0013] Figure 2 It is a schematic cross-sectional view of a motorcycle fuel injector;

[0014] In the figure, 1. flow channel assembly; 11. injection molding body; 12. coil terminal; 13. frame; 14. enameled wire; 15. electromagnetic ring; 16. magnetic cover; 17. sealing ring three; 2. injector body; 21. filter screen; 22. oil inlet seat; 23. sealing ring one; 24. positioning pin; 25. valve core; 26. valve seat; 27. spray hole plate; 28. spring. DETAILED DESCRIPTION

[0015] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention.

[0016] like Figure 1-2 As shown, a motorcycle fuel injector is characterized in that it comprises:

[0017] Injector body 2;

[0018] The flow channel assembly 1 is designed to be separated from the fuel injector body 2. The upper end of the flow channel assembly 1 is connected to the fuel injector body 2 through a sealing ring 29, and the lower end of the flow channel assembly 1 is connected to the fuel injector body 2 through a weld.

[0019] Furthermore, the injector body 2 includes an injection molded body 11, a coil terminal 12, a skeleton 13, an electromagnetic ring 15 and a magnetic conductive cover 16, the electromagnetic ring 15 is sleeved on the outside of the skeleton 13 and an enameled wire 14 is provided between the electromagnetic ring 15 and the skeleton 13 bracket, the injection molded body 11 is arranged at the upper end of the electromagnetic ring 15 and a magnetic conductive cover 16 is provided between the electromagnetic ring 15 and the electromagnetic ring 15, and the coil terminal 12 is arranged at the outermost end of the injection molded body 11.

[0020] In the above structure, the skeleton 13 and the innermost end of the coil terminal 12 are assembled with each other, and the coil terminal 12 is wrapped with the enameled wire 14 after being assembled. The assembled coil terminal 12 is installed in the electromagnetic ring 15 and then welded with the magnetic cover 16. The injection molded body 11 is plastic particles, which are connected with other parts through the injection molding process. The structure wrapped with the electromagnetic ring 15, the skeleton 13, and the magnetic cover 16 is formed by the injection molding process to form the injector body 2, and the outermost end of the coil terminal 12 is located at the outermost end of the injection molded body 11.

[0021] Furthermore, the flow channel assembly 1 includes an oil inlet seat 22, a positioning pin 24, a valve core 25, a valve seat 26 and a spray hole plate 27, wherein the positioning pin 24 is arranged in the oil inlet seat 22, the valve core 25 is arranged below the positioning pin 24 and a spring 28 is arranged between the two, the valve seat 26 is arranged below the valve core 25, the spray hole plate 27 is arranged at the outlet end of the valve seat 26, and the inlet end of the oil inlet seat 22 is provided with a filter screen 21. The filter screen 21 has a filtering effect, and the oil is sprayed from the oil inlet seat 22 filter screen 21 from top to bottom from the spray hole plate 27.

[0022] Furthermore, a sealing ring 17 is sleeved on the lower end of the electromagnetic ring 15 .

[0023] Furthermore, a sealing ring 23 is sleeved on the upper end of the oil inlet seat 22 .

[0024] The noise of the motorcycle fuel injector mainly comes from the flow channel component 1, that is, the impact of the valve core 25, the iron core (oil inlet seat 22) and the valve seat 26. The motorcycle fuel injector separates the flow channel component 1 from the fuel injector body 2. The upper end of the flow channel component 1 is connected to the fuel injector body 2 through the sealing ring 29, and the lower end is connected to the fuel injector body 2 through a weld. This structure reduces the rigidity of the flow channel component 1 and the fuel injector body 2, thereby reducing the noise conduction efficiency and achieving the purpose of fuel injector noise reduction; at the same time, the sealing of the valve seat 26 of the motorcycle fuel injector is an important indicator of the fuel injector, and the sealing of the valve seat 26 is the part with the highest defective rate in the fuel injector production process; the present application separates the flow channel component 1 from the fuel injector body 2, and the flow channel component 1 is first assembled with the valve seat 26 for airtightness testing, and then assembled with the fuel injector body 2 after passing the test, thereby reducing the scrapping of the fuel injector body 2.

[0025] The technical solution of the above utility model provides a solution that is significantly different from the prior art to address the technical problem that the prior art solution is too single. The parts not involved in the technical solution of this application are the same as the prior art or can be implemented by using the prior art and will not be described in detail.

[0026] The technical solutions in the above embodiments have clearly and completely described the contents of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Claims

1. A motorcycle fuel injector, characterized in that: It includes: Injector body; The flow channel assembly is designed to be separated from the fuel injector body. The upper end of the flow channel assembly is connected to the fuel injector body through a second sealing ring, and the lower end of the flow channel assembly is connected to the fuel injector body through a weld.

2. A motorcycle fuel injector according to claim 1, characterized in that: The injector body includes an injection molded body, a coil terminal, a skeleton, an electromagnetic ring and a magnetic conductive cover. The electromagnetic ring is sleeved on the outside of the skeleton and an enameled wire is provided between the electromagnetic ring and the skeleton bracket. The injection molded body is arranged at the upper end of the electromagnetic ring and a magnetic conductive cover is provided between the electromagnetic ring and the electromagnetic ring. The coil terminal is arranged at the outermost end of the injection molded body.

3. A motorcycle fuel injector according to claim 1, characterized in that: The flow channel assembly includes an oil inlet seat, a positioning pin, a valve core, a valve seat and a spray hole plate, the positioning pin is arranged in the oil inlet seat, the valve core is arranged below the positioning pin and a spring is arranged between the two, the valve seat is arranged below the valve core, the spray hole plate is arranged at the outlet end of the valve seat, and the inlet end of the oil inlet seat is provided with a filter.

4. A motorcycle fuel injector according to claim 2, characterized in that: The lower end of the electromagnetic ring is sleeved with a sealing ring three.

5. A motorcycle fuel injector according to claim 3, characterized in that: The upper end of the oil inlet seat is sleeved with a sealing ring 1.

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