Pressing cap of electronic fuel injector of motorcycle engine

Abstract

The utility model relates to the technical field of motorcycle engines, and discloses a motorcycle engine electronic injection fuel injector pressing cap which comprises an oil inlet pipe and a fuel injector pressing cap body, the fuel injector pressing cap body is used for being connected with a fuel injector, and the oil inlet pipe is communicated with the fuel injector. The oil inlet pipe is movably connected between the oil injector pressing cap body and the pressing plate, the pressing plate is fixedly connected with the oil injector pressing cap body at the same time, and a locking piece for locking the oil inlet pipe is arranged on the pressing plate. The rotating mechanism can rotate at any angle, can be locked after a proper arrangement direction is determined, prevents the direction from being changed at will, is suitable for various vehicle types, facilitates the layout of the whole vehicle, and improves the universality of products.

Description

Technical Field

[0001] The utility model relates to the technical field of motorcycle engines, in particular to a pressure cap of an electronic fuel injection injector of a motorcycle engine. Background Art

[0002] The engine electronic fuel injection injector pressure cap, also known as the tight cap or the pressure cap part of the pressure-feed atomizing paint spray gun, is a key component in the electronic fuel injection system. It is usually located at or near the top of the injector and plays the role of pressing, fixing and sealing the injector nozzle to ensure that the fuel can be accurately sprayed into the combustion chamber.

[0003] Chinese patent document CN213574424U discloses a motorcycle injector bracket, including an injector pressure cap, an oil inlet pipe joint and a mounting bracket, wherein two injector pressure caps are provided, and the two injector pressure caps are connected through an oil rail, the oil inlet pipe joint is statically connected to the oil rail, and the mounting bracket is statically connected to the oil rail and / or the injector pressure cap.

[0004] The prior art has the following disadvantages: the current mainstream electronic fuel injection injector pressure cap of motorcycles is a fixed structure, and the electronic fuel injection injector pressure cap must be redesigned and developed for different models, resulting in poor product adaptability. Utility Model Content

[0005] The utility model provides a motorcycle engine electronic fuel injection injector pressure cap to solve the technical problem of poor universality of the motorcycle electronic fuel injection injector pressure cap, comprising an oil inlet pipe and an injector pressure cap body, the injector pressure cap body is used to connect the injector, the oil inlet pipe is connected to the injector, and is characterized in that a pressure plate is provided above the oil inlet pipe, the oil inlet pipe is movably connected between the injector pressure cap body and the pressure plate, the pressure plate is fixedly connected to the injector pressure cap body at the same time, and a locking piece for locking the oil inlet pipe is provided on the pressure plate.

[0006] In order to facilitate the adjustment of the direction of the oil inlet pipe during installation, the oil inlet pipe includes a rotating part and a pipeline part. The rotating part is located between the injector cap body and the pressure plate. A connecting hole for the locking piece to be connected is provided on the top of the rotating part. The locking piece presses the rotating part between the injector cap body and the pressure plate.

[0007] Preferably, the pressure plate is bent, and comprises an upper connecting plate, a middle connecting plate and a lower connecting plate, the upper connecting plate is connected to the locking piece, and the lower connecting plate is connected to the injector pressure cap body.

[0008] In order to facilitate the fixation of the injector and the oil inlet pipe to suit different vehicle models, a fixing plate is provided on the injector cap body, and the fixing plate and the lower connecting plate are both provided with fixing holes for connection, and the fixing holes are used to connect and fix the fixing plate and the lower connecting plate to the pipeline or housing of the engine.

[0009] In order to avoid oil leakage from the injector cap body, a sealing ring is provided in the communicating hole in the middle of the injector cap body. The sealing ring is used to be sleeved on the oil inlet of the injector. The sealing ring is located between the injector cap body and the injector.

[0010] In order to facilitate rapid oil flow, the pipeline portion is connected to the cavity in the rotating portion, and the cavity is connected to the pipeline portion and the connecting hole in the middle of the injector cap body.

[0011] In order to facilitate the connection of the pressure plate, a boss is provided on the top of the rotating part, and a boss connecting hole for connecting the locking piece is provided on the boss.

[0012] The utility model has the following beneficial effects:

[0013] 1. Separate the fuel injector and the fuel inlet. The fuel inlet pipe can be designed separately for the newly developed models or states. At the same time, a rotatable fuel inlet pipe can be installed in multiple directions. The rotating part of the fuel inlet pipe can be rotated at any angle when not locked. After determining the appropriate layout direction, it can be locked to prevent arbitrary changes in direction. This injector cap can be applied to multiple models, which is convenient for the layout of the whole vehicle and improves the versatility of the product.

[0014] 2. The injector and the oil inlet pipe can be fixed on the engine at the same time for easy disassembly and installation, reducing vibration. It is also suitable for many models. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of an embodiment of a pressure cap of an electronic fuel injection injector for a motorcycle engine according to the utility model;

[0016] Figure 2 This is a schematic diagram of the installation of an embodiment of a pressure cap of an electronic fuel injection injector for a motorcycle engine according to the utility model;

[0017] Figure 3 for Figure 2 sectional view of . DETAILED DESCRIPTION

[0018] The following is further described in detail through specific implementation methods:

[0019] 1. The reference numerals in the drawings of the specification include: oil inlet pipe 1, fuel injector cap body 2, pressure plate 3, oil inlet 4, fuel injector 5, locking member 6, rotating portion 7, pipeline portion 8, upper connecting plate 9, middle connecting plate 10, lower connecting plate 11, fixing plate 12, fixing hole 13, sealing ring 14, cavity 15, connecting hole 16, circular boss 17, threaded connection hole 18.

[0020] Example 1

[0021] like Figure 1-3 As shown, a motorcycle engine electronic fuel injection injector pressure cap comprises an oil inlet pipe 1, an injector pressure cap body 2 and a pressure plate 3. The injector pressure cap body 2 is sleeved at the oil inlet 4 connected to the injector 5 and fixed by a buckle. The oil inlet pipe 1 is connected to the injector 5. The pressure plate 3 is arranged above the oil inlet pipe 1. The injector pressure cap body 2 is below the oil inlet pipe 1. Before being locked, the oil inlet pipe 1 can rotate freely between the injector pressure cap body 2 and the pressure plate 3. The pressure plate 3 is fixedly connected to the injector pressure cap body 2 at the same time. A locking piece 6 for locking the oil inlet pipe 1 is provided on the pressure plate 3. After locking, the oil inlet pipe 1 is pressed between the injector pressure cap body 2 and the pressure plate 3 and cannot rotate freely between the injector pressure cap body 2 and the pressure plate 3. The locking piece 6 adopts a locking screw.

[0022] The oil inlet pipe 1 includes a rotating part 7 and a pipeline part 8. The rotating part 7 is located between the injector cap body 2 and the pressure plate 3. A threaded connection hole 18 is provided on the top of the rotating part 7 for the locking member 6 to connect. The locking member 6 presses the rotating part 7 between the injector cap body 2 and the pressure plate 3.

[0023] The pressure plate 3 is bent, and includes an upper connecting plate 9, a middle connecting plate 10 and a lower connecting plate 11. The upper connecting plate 9 is connected to the locking piece 6, and the lower connecting plate 11 is connected to the injector pressure cap body 2 by bolts. The injector pressure cap body 2 is provided with a fixing plate 12, and the fixing plate 12 and the lower connecting plate 11 are both provided with fixing holes 13 for connection. The bolts connect and fix the fixing plate 12 and the lower connecting plate 11 to the pipeline of the engine through the fixing holes 13 for fixing.

[0024] A sealing ring 14 is provided in the communicating hole 16 in the middle of the fuel injector cap body 2 . The sealing ring 14 is used to be sleeved on the fuel inlet 4 of the fuel injector 5 . The sealing ring 14 is located between the fuel injector cap body 2 and the fuel injector 5 .

[0025] The pipeline portion 8 is connected to a cavity 15 in the rotating portion 7 , and the cavity 15 is connected to the pipeline portion 8 and a connecting hole 16 in the middle of the injector cap body 2 .

[0026] A circular boss 17 is disposed on the top of the rotating portion 7 , and a threaded connection hole 18 for connecting the locking member 6 is disposed on the circular boss 17 .

[0027] The above is only an embodiment of the utility model. The common sense such as the known specific structure and characteristics in the scheme is not described in detail here. The ordinary technicians in the relevant field know all the common technical knowledge in the technical field of the utility model before the application date or priority date, can obtain all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for the technicians in this field, without departing from the structure of the utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, which will not affect the effect of the implementation of the utility model and the practicality of the patent. The protection scope required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to explain the content of the claims.

Claims

1. A motorcycle engine electronic fuel injection injector cap, comprising an oil inlet pipe and an injector cap body, wherein the injector cap body is used to connect the injector, and the oil inlet pipe is connected to the injector, characterized in that: A pressure plate is provided above the oil inlet pipe, and the oil inlet pipe is movably connected between the injector pressure cap body and the pressure plate. The pressure plate is also fixedly connected to the injector pressure cap body, and a locking piece for locking the oil inlet pipe is provided on the pressure plate.

2. The motorcycle engine electronic fuel injection injector pressure cap according to claim 1, characterized in that: The oil inlet pipe includes a rotating part and a pipeline part. The rotating part is located between the injector cap body and the pressure plate. A connecting hole for connecting the locking piece is provided on the top of the rotating part. The locking piece presses the rotating part between the injector cap body and the pressure plate.

3. The motorcycle engine electronic fuel injection injector pressure cap according to claim 2, characterized in that: The pressure plate is bent and comprises an upper connecting plate, a middle connecting plate and a lower connecting plate. The upper connecting plate is connected to the locking piece, and the lower connecting plate is connected to the injector pressure cap body.

4. The motorcycle engine electronic fuel injector pressure cap according to claim 3, characterized in that: A fixing plate is provided on the injector pressure cap body, and fixing holes for connection are provided on the fixing plate and the lower connecting plate.

5. The motorcycle engine electronic fuel injection injector pressure cap according to claim 4, characterized in that: A sealing ring is arranged in the communicating hole in the middle of the fuel injector pressure cap body. The sealing ring is used to be sleeved on the oil inlet of the fuel injector. The sealing ring is located between the fuel injector pressure cap body and the fuel injector.

6. The motorcycle engine electronic fuel injection injector pressure cap according to any one of claims 2 to 5, characterized in that: The pipeline part is connected to the cavity in the rotating part, and the cavity is connected to the pipeline part and the connecting hole in the middle part of the injector cap body.

7. The motorcycle engine electronic fuel injector pressure cap according to claim 6, characterized in that: A boss is provided on the top of the rotating part, and a boss connecting hole for connecting the locking member is provided on the boss.

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