A diesel engine fuel distribution device

CN224664710UActive Publication Date: 2026-08-21GONGQING INST OF SCI & TECH +1
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Patent Information

Application Number
CN202522375458.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-10
Publication Date
2026-08-21
Estimated Expiration
2035-11-10

AI Technical Summary

Technical Problem

[0004]在燃油分配器上一般配装有进油嘴,通常通过固定卡子对供油管和进油嘴进行固定作业,这种固定方式长时间的固定作业后,卡子的固定效果会降低,并且经过拆卸和安装后影响卡子的固定效果

Benefits of technology

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This diesel turbine fuel distribution device provides fuel to the fuel inlet nozzle through the fuel inlet pipe. The fuel inlet pipe and the fuel inlet nozzle are initially fixed by fitting together with the first anti-slip ring. By rotating the rotating tube, the fixed inclined ring on the inner wall of the rotating tube is rotated simultaneously. The fixed inclined ring tightly fits and clamps the fuel inlet pipe fixed on the first anti-slip ring, thereby clamping and fixing the fuel inlet pipe. The rotating tube is screwed to the first fixed ring, thereby fixing the rotating tube. This improves the stability of the fuel inlet pipe and fuel inlet nozzle during fixing, facilitates the quick disassembly and installation of the fuel inlet pipe and fuel inlet nozzle, and improves practicality.

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Abstract

The utility model relates to the technical field of fuel distribution, particularly relate to a diesel engine fuel distribution device, it has improved the stable effect of oil inlet pipe and oil inlet nozzle fixed operation, the oil inlet pipe and oil inlet nozzle quick dismounting and installation operation of the convenience, improved practicality, the fixed mechanism includes first fixed ring, first fixed ring fixed mounting is on the outside wall of oil inlet nozzle, the outside wall of first fixed ring is screwed with swivel pipe, the inside wall of swivel pipe is fixed with fixed inclined ring and installs, the outside wall of oil inlet nozzle is fixed with first antiskid ring and installs, the outside wall of first antiskid ring is closely combined with the inside wall of oil inlet pipe, the outside wall of oil inlet pipe is closely combined with the inside wall of swivel pipe and fixed installation fixed inclined ring, the outside wall of swivel pipe is provided with limit mechanism.
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Description

Technical Field

[0001] This utility model relates to the technical field of fuel distribution, specifically a fuel distribution device for a diesel turbine. Background Technology

[0002] The fuel distributor is a crucial component of the air / fuel subsystem in an electronic fuel injection system. Its primary function is to provide a stable fuel flow to each cylinder's injector and achieve uniform distribution. Mounted on the intake manifold at the injector location, it serves both to secure and connect the injectors, while also mitigating the effects of fuel pressure pulsation and high-temperature vaporization. This device is widely used in diesel engines.

[0003] For example, Chinese utility model patent publication number CN2497069Y discloses a fuel distributor, which has flanges and fuel inlets installed at both ends of the main pipe, and four fuel injector bases mounted perpendicular to the main pipe wall, with upper and lower supports between the two sets of fuel injector bases. This device has a simple structure, is easy to install, and reduces the damage caused by engine vibration.

[0004] Fuel distributors are typically equipped with fuel inlets. The fuel supply line and fuel inlet are usually secured by clips. However, after prolonged use, the clips become less effective at securing the fuel supply line, and disassembly and reassembly can also affect their effectiveness. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a diesel turbine fuel distribution device that improves the stability of the fuel inlet pipe and fuel inlet nozzle during fixing operations, facilitates the quick disassembly and installation of the fuel inlet pipe and fuel inlet nozzle, and improves its practicality.

[0006] This utility model discloses a diesel turbine fuel distribution device, comprising a main pipe, with multiple fuel injection pipes connected to the top end of the main pipe, and a fuel inlet connected to the input end of the main pipe. The fuel inlet is connected to a fuel inlet pipe via a fixing mechanism. The fixing mechanism includes a first fixing ring, which is fixedly installed on the outer side wall of the fuel inlet. A rotating tube is screwed onto the outer side wall of the first fixing ring, and a fixing oblique ring is fixedly installed on the inner side wall of the rotating tube. A first anti-slip ring is fixedly installed on the outer side wall of the fuel inlet. The outer side wall of the first anti-slip ring is tightly fitted to the inner side wall of the fuel inlet pipe, and the fixing oblique ring is tightly fitted and snapped onto the outer side wall of the fuel inlet pipe and the inner side wall of the rotating tube.

[0007] A limiting mechanism is provided on the outer wall of the rotating tube. This diesel turbine fuel distribution device supplies fuel to the fuel inlet nozzle through the fuel inlet pipe. The fuel inlet pipe and the fuel inlet nozzle are initially fixed by engaging with the first anti-slip ring. Simultaneously, rotating the rotating tube rotates the fixed oblique ring on the inner wall of the rotating tube. The fixed oblique ring tightly engages with the fuel inlet pipe fixed on the first anti-slip ring, thus clamping and fixing the fuel inlet pipe. Finally, the rotating tube is fixed by screwing it to the first fixed ring. This improves the stability of the fuel inlet pipe and fuel inlet nozzle during fixing, facilitates quick disassembly and installation of the fuel inlet pipe and fuel inlet nozzle, and enhances practicality.

[0008] Preferably, the limiting mechanism includes a limiting ring, which is fixedly installed on the outer wall of the rotating tube. The limiting ring is slidably and rotatably connected to the outer wall of the oil inlet pipe. A second fixing ring is fixedly installed on the outer wall of the oil inlet pipe, and the second fixing ring is in contact with the limiting ring. When the rotating tube is rotating, it synchronously drives the limiting ring to move on the outer wall of the oil inlet pipe. Through the contact of the limiting ring and the second fixing ring, the position of the rotating tube during the rotating operation is effectively limited.

[0009] Preferably, a base is fixedly installed on the outer wall of the first fixing ring, and the base is attached to one end of the rotating tube. By installing the base, it is convenient to effectively limit one end of the rotating tube during the rotating and moving operation.

[0010] Preferably, a third fixing ring is fixedly installed at the end of the outer wall of the first fixing ring away from the base, and the inner wall of the third fixing ring is in contact with the outer wall of the oil inlet pipe. By installing the third fixing ring, it is convenient to limit the operation of one end of the oil inlet pipe.

[0011] Preferably, a fixing seat is fixedly installed at the bottom end of the main tube, and two brackets are symmetrically fixedly installed on the outer side wall of the fixing seat. The cooperation between the fixing seat and the brackets facilitates the fixed connection between the main tube and the diesel turbine engine.

[0012] Preferably, each bracket is fixedly connected to the diesel turbine engine by a plurality of fixing screws. By installing the bracket, it is convenient to fix the fixing screws to the diesel turbine engine.

[0013] Preferably, a second anti-slip ring is fixedly installed on the outer wall of the oil inlet nozzle. The second anti-slip ring is tightly fitted to the inner wall of the oil inlet pipe. By installing the second anti-slip ring, the stability of the oil inlet pipe and the oil inlet nozzle during fixed operation is improved.

[0014] Preferably, a filter screen is fixedly installed on the inner wall of each of the fuel injection pipes, thereby facilitating the filtration of the fuel.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This diesel turbine fuel distribution device provides fuel to the fuel inlet nozzle through the fuel inlet pipe. The fuel inlet pipe and the fuel inlet nozzle are initially fixed by fitting together with the first anti-slip ring. By rotating the rotating tube, the fixed inclined ring on the inner wall of the rotating tube is rotated simultaneously. The fixed inclined ring tightly fits and clamps the fuel inlet pipe fixed on the first anti-slip ring, thereby clamping and fixing the fuel inlet pipe. The rotating tube is screwed to the first fixed ring, thereby fixing the rotating tube. This improves the stability of the fuel inlet pipe and fuel inlet nozzle during fixing, facilitates the quick disassembly and installation of the fuel inlet pipe and fuel inlet nozzle, and improves practicality. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic cross-sectional view of the present invention.

[0018] Figure 3 This is a schematic diagram of the connection structure of the main tube and the fixing seat of this utility model;

[0019] Figure 4 This is a schematic diagram of the connection structure of the oil inlet nozzle and oil inlet pipe of this utility model.

[0020] The following are labels in the attached diagram: 1. Main tube; 2. Injector; 3. Inlet nozzle; 4. Inlet pipe; 5. First fixing ring; 6. Rotating tube; 7. Fixing oblique ring; 8. First anti-slip ring; 9. Limiting ring; 10. Second fixing ring; 11. Base; 12. Third fixing ring; 13. Fixing seat; 14. Bracket; 15. Fixing screw; 16. Second anti-slip ring. Detailed Implementation

[0021] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0022] This utility model discloses a diesel turbine fuel distribution device, including a main pipe 1, with multiple fuel injection pipes 2 connected to the top end of the main pipe 1, and a fuel inlet 3 connected to the input end of the main pipe 1. The fuel inlet 3 is connected to a fuel inlet pipe 4 via a fixing mechanism. The fixing mechanism includes a first fixing ring 5, which is fixedly installed on the outer side wall of the fuel inlet 3. A rotating pipe 6 is screwed onto the outer side wall of the first fixing ring 5, and a fixing oblique ring 7 is fixedly installed on the inner side wall of the rotating pipe 6. A first anti-slip ring 8 is fixedly installed on the outer side wall of the fuel inlet 3, and the outer side wall of the first anti-slip ring 8 is tightly fitted with the inner side wall of the fuel inlet pipe 4. The fixing oblique ring 7 is fixedly fitted and snapped onto the outer side wall of the fuel inlet pipe 4 and the inner side wall of the rotating pipe 6.

[0023] A limiting mechanism is provided on the outer wall of the rotating tube 6. The limiting mechanism includes a limiting ring 9, which is fixedly installed on the outer wall of the rotating tube 6. The limiting ring 9 is slidably and rotatably connected to the outer wall of the oil inlet pipe 4. A second fixing ring 10 is fixedly installed on the outer wall of the oil inlet pipe 4, and the second fixing ring 10 is in contact with the limiting ring 9. A base 11 is fixedly installed on the outer wall of the first fixing ring 5, and the base 11 is in contact with one end of the rotating tube 6. A third fixing ring is fixedly installed on the outer wall of the first fixing ring 5 away from the base 11. The inner wall of the fixing ring 12 and the third fixing ring 12 are in contact with the outer wall of the oil inlet pipe 4. The bottom end of the main pipe 1 is fixedly installed with a fixing seat 13. Two brackets 14 are symmetrically fixedly installed on the outer wall of the fixing seat 13. Each bracket 14 is fixedly connected to the diesel turbine engine by multiple fixing screws 15. The outer wall of the oil inlet 3 is fixedly installed with a second anti-slip ring 16. The second anti-slip ring 16 is tightly in contact with the inner wall of the oil inlet pipe 4. A filter screen is fixedly installed on the inner wall of each oil injection pipe 2.

[0024] like Figures 1 to 4As shown, this utility model discloses a diesel turbine fuel distribution device. During operation, it supplies fuel to the fuel inlet nozzle 3 via the fuel inlet pipe 4. The fuel inlet pipe 4 is initially fixed to the fuel inlet nozzle 3 by engaging with a first anti-slip ring 8 fixed on the fuel inlet nozzle 3. Simultaneously, rotating the rotating tube 6 rotates the fixing oblique ring 7 on its inner wall, tightly clamping the fuel inlet pipe 4 to the first anti-slip ring 8, thus completing the clamping and fixing of the fuel inlet pipe 4. The rotating tube 6 and the first fixing ring 8... The screw is then used to fix the rotating tube 6. The mounting base 11 facilitates the effective limiting of one end of the rotating tube 6 during rotation. When the rotating tube 6 rotates, it simultaneously drives the limiting ring 9 to move on the outer wall of the oil inlet pipe 4. The limiting ring 9 and the second fixing ring 10 fit together to effectively limit the position of the rotating tube 6. After the oil is delivered to the oil inlet nozzle 3 and the main pipe 1 through the oil inlet pipe 4, it is filtered by the oil filter screen on the injection pipe 2 and then sprayed out to provide oil to the engine.

[0025] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A diesel turbine fuel distribution device, comprising a main pipe (1), a plurality of fuel injection pipes (2) connected to the top end of the main pipe (1), an inlet nozzle (3) connected to the input end of the main pipe (1), and an inlet pipe (4) connected to the inlet nozzle (3) via a fixing mechanism, characterized in that: The fixing mechanism includes a first fixing ring (5), which is fixedly installed on the outer side wall of the oil inlet (3). A rotating tube (6) is screwed onto the outer side wall of the first fixing ring (5). A fixing oblique ring (7) is fixedly installed on the inner side wall of the rotating tube (6). A first anti-slip ring (8) is fixedly installed on the outer side wall of the oil inlet (3). The outer side wall of the first anti-slip ring (8) is tightly fitted with the inner side wall of the oil inlet pipe (4). The outer side wall of the oil inlet pipe (4) and the inner side wall of the rotating tube (6) are tightly fitted and clamped together. A limit mechanism is provided on the outer wall of the rotating tube (6).

2. The diesel turbine fuel distribution device according to claim 1, characterized in that: The limiting mechanism includes a limiting ring (9), which is fixedly installed on the outer side wall of the rotating tube (6). The limiting ring (9) slides and rotates with the outer side wall of the oil inlet pipe (4). A second fixing ring (10) is fixedly installed on the outer side wall of the oil inlet pipe (4), and the second fixing ring (10) fits against the limiting ring (9).

3. The diesel turbine fuel distribution device according to claim 1, characterized in that: A base (11) is fixedly installed on the outer side wall of the first fixing ring (5), and the base (11) is attached to one end of the rotating tube (6).

4. A diesel turbine fuel distribution device according to claim 1, characterized in that: A third fixing ring (12) is fixedly installed on the outer side wall of the first fixing ring (5) away from the base (11), and the inner side wall of the third fixing ring (12) is in contact with the outer side wall of the oil inlet pipe (4).

5. A diesel turbine fuel distribution device according to claim 1, characterized in that: The bottom end of the main tube (1) is fixedly installed with a fixing seat (13), and two brackets (14) are symmetrically fixedly installed on the outer side wall of the fixing seat (13).

6. A diesel turbine fuel distribution device according to claim 5, characterized in that: Each of the brackets (14) is fixedly connected to the engine of the diesel turbine by a plurality of fixing screws (15).

7. A diesel turbine fuel distribution device according to claim 1, characterized in that: A second anti-slip ring (16) is fixedly installed on the outer wall of the oil inlet (3), and the second anti-slip ring (16) is tightly fitted to the inner wall of the oil inlet pipe (4).

8. A diesel turbine fuel distribution device according to claim 1, characterized in that: Each of the oil injection pipes (2) has an oil filter screen fixedly installed on its inner wall.

Citation Information

Patent Citations

  • Fuel distributor

    CN2497069Y