Oil injection pipeline with special-shaped hole structure

Abstract

The utility model discloses an oil injection pipe pipeline with a special-shaped hole structure, which comprises an integrated joint, round holes are formed in the integrated joint, the back of the integrated joint is communicated with an oil feeding pipe, special-shaped oil injection holes are uniformly formed in the surface of the oil feeding pipe, and three round oil injection holes are formed in the top of the oil feeding pipe. The fuel injection pipe with the special-shaped hole structure has the advantages of being convenient to connect and fix and high in injection efficiency, and solves the problems that the structure of a common fuel injection pipe is difficult to meet the requirement for rapid and stable fuel injection, fuel atomization is prone to being uneven, insufficient combustion is prone to being caused, emission is increased, and under the high injection pressure, the fuel injection efficiency is low. The problems that in the prior art, the cavitation effect is prone to being generated at an outlet of a round hole, hole wall abrasion and carbon deposition blockage are aggravated, in addition, complex operation and more connecting pieces are often needed in the installation and connection process of an existing oil injection pipe pipeline, and the system complexity and the fault risk are increased are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil injection pipeline technical field, concretely relates to a special-shaped hole structure oil injection pipe pipeline. BACKGROUND

[0002] In the fuel injection system of the fuel engine, the oil injection pipe pipeline plays a vital role, which is responsible for accurately and uniformly delivering fuel to each fuel injection site of the engine.

[0003] The existing oil injection pipe pipeline has some problems, the fuel distribution of the ordinary circular hole structure oil injection pipe is not uniform when fuel injection, which can easily lead to inconsistent mixing ratio of fuel and air in each cylinder of the engine, affect the combustion efficiency, reduce the power output of the engine, and increase the emission of pollutants. Moreover, under the working condition of high pressure and high flow fuel injection, the structure of the ordinary oil injection pipe is difficult to meet the requirements of rapid and stable fuel injection, which can easily lead to uneven fuel atomization, insufficient combustion and increased emission. Under high injection pressure, cavitation effect can easily occur at the outlet of the circular hole, which can aggravate the wear of the hole wall and the blockage of carbon deposition. In addition, the existing oil injection pipe pipeline often needs complex operation and more connecting parts during installation and connection, which increases the complexity and failure risk of the system. Therefore, there is an urgent need for a special-shaped hole structure oil injection pipe pipeline to overcome the above-mentioned defects. SUMMARY

[0004] The utility model aims at providing a special-shaped hole structure oil injection pipe pipeline, which has the advantages of convenient connection and fixation and high injection efficiency, to solve the problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a special-shaped hole structure oil injection pipe pipeline, comprising an integral joint, a circular hole is formed in the inside of the integral joint, a fuel delivery pipe is communicated with the back surface of the integral joint, a plurality of special-shaped oil injection holes are uniformly formed on the surface of the fuel delivery pipe, a plurality of circular oil injection holes are formed on the top of the fuel delivery pipe, and the number of the circular oil injection holes is three, and a plug-in connector is communicated with the back surface of the fuel delivery pipe.

[0006] Further, the shape of the fuel delivery pipe is arc-shaped.

[0007] Further, a first sealing ring is sleeved on the surface of the plug-in connector.

[0008] Further, a second sealing ring is sleeved on the inner surface of the plug-in connector.

[0009] Further, the diameter of the fuel delivery pipe is 5.2mm, and the inner diameter length of the special-shaped oil injection hole is 54mm.

[0010] Further, the total number of the special-shaped oil injection holes is four.

[0011] Therefore, by adopting the above-mentioned technology, the present application has the following advantages:

[0012] The present application adopts the array distribution of the special-shaped oil injection hole, the flow guide protrusion is arranged on the hole wall surface, the secondary flow is used to enhance the fuel shearing force, the average particle size of the atomized particles is reduced, the thread or flange connection in the traditional split joint is eliminated by arranging the integrated joint, the sealing failure caused by vibration, thermal expansion and cold contraction is avoided, the leakage rate is reduced, the laser cutting machining process is adopted for the circular oil injection hole, the edge precision of the special-shaped hole is ensured, the local high temperature reduces the material thermal damage, the machining process of the special-shaped oil injection hole is consistent, the advantages of convenient connection and fixing and high injection efficiency are achieved, the structure of the ordinary oil injection pipe cannot meet the requirements of rapid and stable fuel injection, the fuel atomization is not uniform, the combustion is insufficient, the emission is increased, the cavitation effect is easily generated at the outlet of the circular hole under high injection pressure, the hole wall wear and carbon deposition are aggravated, in addition, the existing oil injection pipe line needs complex operation and more connecting pieces during installation and connection, the system complexity and fault risk are increased. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 It is a structure schematic view of the present application;

[0014] Fig. 2 It is another perspective structure schematic view of the present application.

[0015] In the figure: 1, integrated joint; 2, round hole; 3, oil supply pipe; 4, plug joint; 5, circular oil injection hole; 6, special-shaped oil injection hole; 7, first sealing ring; 8, second sealing ring. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0017] The present application provides a Figs. 1-2As shown, a special-shaped hole structure fuel injection pipe circuit, including a one-piece joint 1, the inside of the one-piece joint 1 is provided with a round hole 2, the back of the one-piece joint 1 is communicated with a fuel delivery pipe 3, the surface of the fuel delivery pipe 3 is uniformly provided with a special-shaped fuel injection hole 6, the top of the fuel delivery pipe 3 is provided with three circular fuel injection holes 5, and the back of the fuel delivery pipe 3 is communicated with a plug-in joint 4;

[0018] More specifically, by setting the special-shaped fuel injection hole 6, the array distribution, the hole wall surface is provided with a flow guide protrusion, the secondary flow is used to enhance the fuel shear force, the average particle size of the atomized particles is reduced, the one-piece joint 1 is provided, which eliminates the thread or flange connection in the traditional split joint, avoids the sealing failure caused by vibration, thermal expansion and cold shrinkage, reduces the leakage rate, and ensures the special-shaped hole edge precision by setting the circular fuel injection hole 5 which adopts laser cutting processing technology; local high temperature, reduce material thermal damage, consistent with the processing technology of the special-shaped fuel injection hole 6, has the advantages of convenient connection and high injection efficiency.

[0019] In some embodiments, the shape of the fuel delivery pipe 3 is arc-shaped, and more specifically, the fuel delivery pipe 3 is mainly arranged to guide the fuel out.

[0020] In some embodiments, the surface of the plug-in joint 4 is provided with a first sealing ring 7, and more specifically, the first sealing ring 7 is arranged to seal the gap between the surface of the plug-in joint 4 and the outer surface of the connecting joint.

[0021] In some embodiments, the inner surface of the plug-in joint 4 is provided with a second sealing ring 8, and more specifically, the second sealing ring 8 is arranged to seal the gap between the inner surface of the plug-in joint 4 and the surface of the connecting joint.

[0022] In some embodiments, the diameter of the fuel delivery pipe 3 is 5.2mm, and the inner diameter length of the special-shaped fuel injection hole 6 is 54mm, and more specifically, the round hole 2 is mainly arranged to further prevent the connection from shaking and fixed with another connection.

[0023] In some embodiments, the total number of the special-shaped fuel injection hole 6 is four, and more specifically, the one-piece joint 1 and the round hole 2 are arranged to further improve the stability of the connection.

[0024] Working principle:

[0025] Step one: by setting the profiled oil injection hole 6 its array distribution, hole wall surface sets the flow guide convex, using the secondary flow to enhance the fuel shear force, the average particle size of the atomized particles is reduced, by setting the integrated connector 1 the structure eliminates the thread or flange connection in the traditional split connector, avoids the sealing failure caused by vibration, thermal expansion and cold shrinkage, reduces the leakage rate, by setting the circular oil injection hole 5 it adopts laser cutting processing technology to ensure the accuracy of the profiled hole edge; local high temperature, reduce material thermal damage, consistent with the processing technology of the profiled oil injection hole 6;

[0026] Step two: by setting the oil delivery pipe 3 mainly to guide the fuel out, by setting the first sealing ring 7 to seal the gap between the surface of the plug connector 4 and the outer surface of the connecting connector, by setting the second sealing ring 8 to seal the gap between the inner surface of the plug connector 4 and the surface of the connecting connector, by setting the round hole 2 mainly to further prevent the connection from shaking, and fixed with another connection, by the cooperation of the integrated connector 1 and the round hole 2 to further improve the stability of the connection, has the advantages of convenient connection and high injection efficiency.

[0027] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the application concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

[0028] It should be noted that in this paper, such as first and second relationship terms are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the term "include", "contain" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

Claims

1. A profiled orifice structure fuel injection pipe, characterized by: The utility model provides a kind of integrated joint (1), the inside of the integrated joint (1) is opened with round hole (2), the back of the integrated joint (1) is communicated with oil pipe (3), the surface of the oil pipe (3) is evenly opened with profiled oil injection hole (6), the top of the oil pipe (3) is opened with circular oil injection hole (5) and the number is three, the back of the oil pipe (3) is communicated with plug connector (4).

2. The profiled orifice structure fuel injector rail of claim 1, wherein: The shape of the oil pipe (3) is arc-shaped.

3. The profiled orifice structure fuel injector rail of claim 1, wherein: The surface of the plug connector (4) is sleeved with a first sealing ring (7).

4. The profiled orifice structure fuel injector rail of claim 1, wherein: The inner surface of the plug connector (4) is sleeved with a second sealing ring (8).

5. The contoured orifice fuel delivery tube of claim 1, wherein: The diameter of the oil pipe (3) is 5.2 mm, and the inner diameter of the profiled oil injection hole (6) is 54 mm.

6. The contoured orifice fuel delivery tube of claim 1, wherein: The total number of the profiled oil injection hole (6) is four.

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