A high power high speed diesel engine oil elongated line connector

By using pipeline connectors and high-pressure oil pump oil pipes on high-speed diesel engines, a stable oil supply channel is formed, which solves the problems of fixing difficulties and vibration cracking caused by the interlaced pipeline layout, ensuring the stability and reliability of oil supply and reducing operational risks.

CN117028819BActive Publication Date: 2025-11-25HENAN DIESEL ENGINE IND
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Patent Information

Application Number
CN202310936218.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-07-27
Publication Date
2025-11-25
Estimated Expiration
2043-07-27

AI Technical Summary

Technical Problem

The oil lines of high-speed diesel engines are often intersected at the free end, which can easily cause interference and friction with other parts and pipelines, making it difficult to fix. Vibration can lead to breakage, too many joints increase the number of leakage points, and the T-joints can form a pendulum, affecting the stability and reliability of the oil supply and posing operational risks.

Method used

It uses pipe connectors and special high-pressure oil pump oil pipes, which are installed on the diesel engine with fixing bolts. The built-in inner pipe forms a stable channel, reducing the number of interfaces. It uses sealing rubber rings and armored hoses, combined with single pipe clamps, double pipe clamps and multiple pipe clamps for fixation, to ensure a stable oil supply.

Benefits of technology

It effectively secures pipelines, prevents wobbling and rupture, improves the stability and reliability of oil supply, reduces the risk of leakage, and enhances the safety and operational reliability of diesel engines.

✦ Generated by Eureka AI based on patent content.

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    Figure CN117028819B_ABST
Patent Text Reader

Abstract

The present application relates to a kind of high-power high-speed diesel engine oil slender pipeline connector, pipeline connector (1) is installed on diesel engine by screw through fixing bolt mounting hole (1-2), one end of oil supply pipe one (2) is connected to diesel engine body oil hole, the other end is connected to the oil supply pipe one interface (2-1) of the rear surface of pipeline connector (1), one end of oil supply pipe two (3) is connected to diesel engine body oil hole, the other end is connected to the oil supply pipe two interface (3-1) of the upper surface of pipeline connector (1), seawater pump oil pipe (4) is connected to the seawater pump oil pipe interface (4-1) of the right side surface of pipeline connector (1), fresh water pump oil pipe (5) is connected to the fresh water pump oil pipe interface (5-1) of the left side surface of pipeline connector (1), the present application can effectively fix pipeline and prevent pendulum and break, ensure that oil supply is stable and improve reliability.
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Description

Technical Field

[0001] This invention relates to the field of high-speed diesel engine oil pipeline installation design, specifically a high-power high-speed diesel engine oil slender pipeline connector. Background Technology

[0002] High-speed diesel engines have multiple systems and pipelines, including fuel lines, oil lines, fresh water lines, seawater lines, intake lines, exhaust lines, and compressed air lines. The oil lines primarily supply oil to moving parts inside the engine, such as the crankshaft, pistons, camshaft, and gears. They also supply oil to high-speed rotating components, such as the exhaust gas turbocharger, high-pressure oil pump, seawater pump, freshwater pump, and drive shafts. The oil supply lines for high-speed rotating components often use metal pipes with a diameter of φ10 or less as connecting lines. Due to the varying oil supply locations, flow rates, and functional requirements, the connecting pipelines are complex, especially for the lubrication supply lines to components such as the high-pressure oil pump, seawater pump, and freshwater pump located at the free end. Since the free end of the diesel engine also houses oil pressure detection, pressure control, and oil lines for some gear drive shafts, a single engine outlet port is needed to connect multiple pipelines for external oil supply. This is typically achieved using multiple T-junctions connected in parallel. Due to the complex pipeline layout and the structure of high-speed diesel engines… The compact design and limited space at the free end of the diesel engine result in a complex arrangement of long, thin oil lines, which can easily interfere with and rub against other parts and pipes. This complex arrangement makes it difficult to secure the lines, and ineffective securing can lead to breakage due to vibration. Too many joints increase the number of leak points. T-joints create a pendulum effect, increasing pipe vibration and causing breakage. Multiple parallel branching of the lines leads to unstable oil supply flow and makes high-speed rotating components prone to failure. These and other potential problems reduce the safety and reliability of the diesel engine, making it unsafe and risky to operate.

[0003] Currently, utility model patent CN202622616U discloses a compensating bracket for marine diesel engine piping systems. The bracket includes a base plate, a horizontal base plate, and a vertical base plate. The base plate is fixed to the diesel engine body and has threaded holes. The horizontal base plate has slotted holes. The base plate and the horizontal base plate are fixed together by bolts passing through the threaded holes and slotted holes. The vertical base plate is placed on the horizontal base plate and also has slotted holes. Piping is installed in the slotted holes of the vertical base plate and then fixed with bolts. This utility model adjusts the overall horizontal position of the bracket through the slotted holes on the horizontal base plate to accommodate the cumulative horizontal error of the diesel engine piping; it also accommodates the cumulative vertical error of the diesel engine piping through the slotted holes on the vertical base plate, and the bolts provide good fixation and support for the piping, avoiding secondary pollution caused by traditional welding. The components of this bracket can be made into standard accessories for direct on-site installation, greatly saving piping installation time and shortening the diesel engine construction cycle. However, the proposed solution cannot improve the stability of the diesel engine fuel supply line during operation; it can only provide fixation and support during installation and cannot solve the risks of high-speed diesel engines operating with fuel supply lines built using tee pipes. Summary of the Invention

[0004] To address the problems existing in the prior art, the present invention provides a high-power, high-speed diesel engine oil slender pipeline connector, which can effectively fix the pipeline to prevent pendulum swing and breakage, ensure stable oil supply and improve reliability.

[0005] To achieve the above objectives, the present invention provides a high-power, high-speed diesel engine oil slender pipeline connector, comprising a pipeline connector, an oil supply pipe I, an oil supply pipe I interface, an oil supply pipe II, an oil supply pipe II interface, a seawater pump oil pipe, a seawater pump oil pipe interface, a freshwater pump oil pipe, a high-pressure oil pump oil pipe, a high-pressure oil pump oil pipe interface, a drive gear oil pipe, a drive gear oil pipe interface, an oil pressure control valve supply pipe, an oil pressure control valve inlet pipe interface, an oil pressure safety valve supply pipe, and an oil pressure safety valve supply pipe interface. The pipeline connector is mounted on the diesel engine by screws through fixing bolt mounting holes. One end of the oil supply pipe I is connected to the oil outlet of the diesel engine body, and the other end is connected to the pipeline connector. The oil supply pipe is connected to the oil outlet of the diesel engine body at one end and to the oil supply pipe interface on the upper surface of the pipe connector at the other end. The seawater pump oil pipe is connected to the seawater pump oil pipe interface on the right side of the pipe connector. The freshwater pump oil pipe is connected to the freshwater pump oil pipe interface on the left side of the pipe connector. The high-pressure oil pump oil pipe is connected to the high-pressure oil pump oil pipe interface on the upper surface of the pipe connector. The drive gear oil pipe is connected to the drive gear oil pipe interface on the front side of the pipe connector. The oil pressure control valve supply pipe is connected to the oil pressure control valve inlet pipe interface on the left side of the pipe connector. The oil pressure safety valve supply pipe is connected to the oil pressure safety valve supply pipe interface on the right side of the pipe connector.

[0006] The aforementioned pipe connector includes a pipe connector body, fixing bolt mounting holes, inner tube one, inner tube two, inner tube three, and inner tube four. Inner tube one is opened on the left and right sides of the pipe connector body, and the two inner tubes one are not connected. Four inner tubes three are opened on the upper surface of the pipe connector body. Two inner tubes three form a group. When a group of inner tubes three is connected to an inner tube one, it forms an F shape. Inner tube two is opened at the front and rear of the pipe connector body. Inner tube two passes through inner tube one and forms a cross shape. The front and rear ends of inner tube two are respectively connected to the oil supply pipe one interface and the drive gear oil pipe interface. The opening of inner tube one on the right side of the pipe connector body is connected to the seawater pump oil pipe interface. The opening of inner tube one on the left side of the pipe connector body is connected to the freshwater pump oil pipe interface. Inner tube three is connected to the high-pressure oil pump oil pipe interface. Inner tube four is opened through the side of the pipe connector body. The left and right ends of inner tube four are respectively connected to the oil pressure control valve inlet pipe interface and the oil pressure safety valve supply pipe interface. The middle section of inner tube four is connected to the oil supply pipe two interface through a pipe.

[0007] To further improve the reliability of the high-pressure oil pump's oil pipe and reduce installation difficulty, as a further improvement of the present invention, the high-pressure oil pump's oil pipe includes a connector body, a ferrule, a pipe nut, a connecting pipe, a pipe screw, a sealing ring, lubricating components, and a high-pressure oil pump's oil pipe interface. The pipe screw passes through the connector body and connects to the high-pressure oil pump's oil pipe interface through the lubricating components. The connector body is equipped with a sealing ring. The connector body opening is used to install the connecting pipe through the ferrule and the pipe nut. The connector body can rotate 360° around the pipe screw, allowing for adjustment and change of the pipeline direction according to pipeline space requirements. This reduces the technical skill requirements for operators, makes pipeline installation more convenient, and enhances the versatility of the pipeline.

[0008] To improve sealing, as a further improvement of the present invention, the mounting holes for the fixing bolts are equipped with rubber washers.

[0009] To ensure a more stable installation of the pipe connector on the diesel engine, as a further improvement of the present invention, a total of six fixing bolt mounting holes are respectively installed at the four corners and waist of the upper surface of the pipe connector.

[0010] To further improve sealing, as a further improvement of the present invention, the oil supply pipe interface 1, oil supply pipe interface 2, seawater pump oil pipe interface, freshwater pump oil pipe interface, high-pressure oil pump oil pipe interface, drive gear oil pipe interface, oil pressure control valve inlet pipe interface, and oil pressure safety valve supply pipe interface are all equipped with sealing rubber rings.

[0011] To facilitate pipeline installation, as a further improvement of the present invention, the oil supply pipe 1, oil supply pipe 2, seawater pump oil pipe, freshwater pump oil pipe, high-pressure oil pump oil pipe, drive gear oil pipe, oil pressure control valve supply pipe, and oil pressure safety valve supply pipe all adopt oil supply pipelines equipped with spherical pipe joints and armored hoses, and both ends of the pipelines are made of metal.

[0012] To ensure that the pipelines are fixed while wiring is being done, as a further improvement of the present invention, the oil supply pipe 1, oil supply pipe 2, seawater pump oil pipe, freshwater pump oil pipe, high-pressure oil pump oil pipe, drive gear oil pipe, oil pressure control valve supply pipe, and oil pressure safety valve supply pipe are fixed by a combination of single pipe clamps, double pipe clamps, and multiple pipe clamps.

[0013] To provide necessary protection for the oil supply lines, as a further improvement of the present invention, the oil supply pipe 1, oil supply pipe 2, seawater pump oil pipe, freshwater pump oil pipe, high-pressure oil pump oil pipe, drive gear oil pipe, oil pressure control valve supply pipe, and oil pressure safety valve supply pipe are equipped with single-pipe clamps, double-pipe clamps, and multi-pipe clamps with rubber sleeves for protecting the pipelines.

[0014] By means of the above solution, the present invention has at least the following advantages: compared with conventional oil supply pipelines that are interconnected by a tee, the pipeline connector and special high-pressure oil pump oil pipe can effectively fix the pipeline to prevent pendulum and rupture, ensure stable oil supply and improve reliability, and have significant environmental and economic benefits. Attached Figure Description

[0015] Figure 1 This is an installation diagram of a slender oil pipe connector for a high-power, high-speed diesel engine.

[0016] Figure 2 This is a top view of a high-power, high-speed diesel engine oil line connector with a slender pipe.

[0017] Figure 3 This is a rear view of a high-power, high-speed diesel engine oil line connector with a slender pipe.

[0018] Figure 4 This is a front view of a high-power, high-speed diesel engine oil line connector with a slender pipe.

[0019] Figure 5 This is a right view of a high-power, high-speed diesel engine oil line connector with a slender pipe.

[0020] Figure 6 This is a left view of a high-power, high-speed diesel engine oil line connector with a slender pipe.

[0021] Figure 7 yes Figure 2 Cross-sectional view of A;

[0022] Figure 8 yes Figure 2 Cross-sectional view of B;

[0023] Figure 9 yes Figure 3 Cross-sectional view of C;

[0024] Figure 10 This is a cross-sectional view of the high-pressure oil pump oil pipe of a high-power, high-speed diesel engine oil pipe connector.

[0025] In the diagram: 1. Pipe connector; 1-1. Pipe connector body; 1-2. Fixing bolt mounting hole; 1-3. Inner pipe one; 1-4. Inner pipe two; 1-5. Inner pipe three; 1-6. Inner pipe four; 2. Oil supply pipe one; 2-1. Oil supply pipe one interface; 3. Oil supply pipe two; 3-1. Oil supply pipe two interface; 4. Seawater pump oil pipe; 4-1. Seawater pump oil pipe interface; 5. Freshwater pump oil pipe; 5-1. Freshwater pump oil pipe interface; 6. High-pressure oil pump Oil pipe, 6-1, connector body, 6-2, ferrule, 6-3, pipe nut, 6-4, connecting pipe, 6-5, pipe screw, 6-6, sealing ring, 6-7, lubrication components, 6-8, high-pressure oil pump oil pipe interface, 7, drive gear oil pipe, 7-1, drive gear oil pipe interface, 8, oil pressure control valve supply pipe, 8-1, oil pressure control valve inlet pipe interface, 9, oil pressure safety valve supply pipe, 9-1, oil pressure safety valve supply pipe interface. Detailed Implementation

[0026] The invention will now be further described with reference to the accompanying drawings.

[0027] like Figures 1 to 10As shown, this invention provides a high-power, high-speed diesel engine oil slender pipeline connector. Oil is supplied from the diesel engine's oil supply interface. All oil supply pipelines, high-speed rotating components at their free ends, pressure detection, pressure control, and some gear drive shafts are connected to form a stable oil supply connection through a single pipeline connector 1. The pipeline connector 1 is then fixedly mounted on the diesel engine through mounting bolt holes 1-2, ensuring the connector 1 maintains its stable position, increasing space utilization, effectively integrating pipelines, facilitating pipeline layout and fixation, reducing the number of interfaces, and lowering the risk of leakage. By utilizing the channels formed by the inner pipes 1-3, 1-4, 1-5, and 1-6 built into the pipe connector 1, the oil supplied by the diesel engine received by the oil supply pipes 1-2 and 2-3 can be evenly and stably introduced into the seawater pump oil pipe 4, freshwater pump oil pipe 5, high-pressure oil pump oil pipe 6, drive gear oil pipe 7, oil pressure control valve supply pipe 8, and oil pressure safety valve supply pipe 9, respectively. This effectively reduces the complexity of the pipeline construction and reduces the pendulum problem through its own stable installation. Utility model patent CN202622616U discloses a compensating bracket for marine diesel engine piping systems. The bracket includes a base plate, a horizontal base plate, and a vertical base plate. The base plate is fixed to the diesel engine body and has threaded holes. The horizontal base plate has slotted holes. The base plate and the horizontal base plate are fixed together by bolts passing through the threaded holes and slotted holes. The vertical base plate is mounted on the horizontal base plate and also has slotted holes. Piping is installed in the slotted holes of the vertical base plate and then fixed with bolts. This invention adjusts the overall horizontal position of the bracket through the slotted holes on the horizontal base plate to accommodate the cumulative horizontal error of the diesel engine piping; it also accommodates the cumulative vertical error of the diesel engine piping through the slotted holes on the vertical base plate, and the bolts provide good fixation and support for the piping, avoiding secondary contamination caused by traditional welding. The components of this bracket can be made into standard accessories for direct on-site installation, greatly saving piping installation time and shortening the diesel engine construction cycle. However, the proposed solution does not improve the stability of the diesel engine fuel supply line during operation; it only provides fixation and support during installation and cannot solve the risks associated with high-speed diesel engines using T-junction fuel supply lines. This invention, through the pipe connector 1 and a special high-pressure oil pump oil pipe 6, can effectively fix the pipeline to prevent wobbling and breakage, ensuring a stable oil supply and improving reliability, resulting in significant environmental and economic benefits.

[0028] To use, simply install a high-power, high-speed diesel engine oil slender pipe connector onto the diesel engine and connect it to the corresponding pipeline equipment to put it into operation.

[0029] When in use, this invention works as follows:

[0030] During use, engine oil enters the pipeline connector 1 from the diesel engine's fuel inlet through oil supply pipe 1-2 and oil supply pipe 2-3. After filling the pipeline connector 1 with the pipeline formed by inner pipe 1-3, inner pipe 2-4, inner pipe 3-5, and inner pipe 4-6, the oil flows through its respective outlets via seawater pump oil pipe 4, freshwater pump oil pipe 5, high-pressure oil pump oil pipe 6, drive gear oil pipe 7, oil pressure control valve supply pipe 8, and oil pressure safety valve supply pipe 9 to the high-speed rotating components, pressure detection, pressure control, and some gear drive shafts at the free end, thus completing the oil supply.

Claims

1. A high-power, high-speed diesel engine oil slender pipe connector, comprising an oil supply pipe one (2) and an oil supply pipe two (3), characterized in that, The pipeline connector (1) is installed on the diesel engine by screws through the fixing bolt mounting holes (1-2). One end of the oil supply pipe one (2) is connected to the oil outlet of the diesel engine body, and the other end is connected to the oil supply pipe one interface (2-1) on the rear surface of the pipeline connector (1). One end of the oil supply pipe two (3) is connected to the oil outlet of the diesel engine body, and the other end is connected to the oil supply pipe two interface (3-1) on the upper surface of the pipeline connector (1). The seawater pump oil pipe (4) is connected to the seawater pump oil pipe interface (4-1) on the right side surface of the pipeline connector (1). The freshwater pump oil pipe (5) is connected to the pipeline connector. The freshwater pump oil pipe interface (5-1) on the left side of the connector (1), the high-pressure oil pump oil pipe (6) is connected to the high-pressure oil pump oil pipe interface (6-8) on the upper surface of the pipe connector (1), the drive gear oil pipe (7) is connected to the drive gear oil pipe interface (7-1) on the front surface of the pipe connector (1), the oil pressure control valve supply pipe (8) is connected to the oil pressure control valve inlet pipe interface (8-1) on the left side of the pipe connector (1), and the oil pressure safety valve supply pipe (9) is connected to the oil pressure safety valve supply pipe interface (9-1) on the right side of the pipe connector (1). The aforementioned pipe connector (1) includes a pipe connector body (1-1), a fixing bolt mounting hole (1-2), an inner tube one (1-3), an inner tube two (1-4), an inner tube three (1-5), and an inner tube four (1-6). The inner tube one (1-3) is opened opposite each other on the left and right sides of the pipe connector body (1-1), and the two inner tubes one (1-3) are not connected. Four inner tubes three (1-5) are opened on the upper surface of the pipe connector body (1-1). Two inner tubes three (1-5) form a group. After a group of inner tubes three (1-5) is connected to an inner tube one (1-3), they form an F-shape. The inner tube two (1-4) is opened at the front and rear of the pipe connector body (1-1). The inner tube two (1-4) passes through the inner tube one (1-3) and forms a cross shape. The front and rear ends of the inner tube two (1-4) are separated. Connect the oil supply pipe interface 1 (2-1) and the drive gear oil pipe interface (7-1) separately. Connect the seawater pump oil pipe interface (4-1) at the opening of the inner pipe 1 (1-3) on the right side of the pipe connector body (1-1). Connect the freshwater pump oil pipe interface (5-1) at the opening of the inner pipe 1 (1-3) on the left side of the pipe connector body (1-1). Connect the inner pipe 3 (1-5) to the high-pressure oil pump oil pipe interface (6-8). Open the inner pipe 4 (1-6) through the side of the pipe connector body (1-1). Connect the oil pressure control valve inlet pipe interface (8-1) and the oil pressure safety valve supply pipe interface (9-1) at the left and right ends of the inner pipe 4 (1-6) respectively. Connect the middle section of the inner pipe 4 (1-6) to the oil supply pipe interface 2 (3-1) through the pipe.

2. The high-power, high-speed diesel engine oil slender pipeline connector according to claim 1, characterized in that, The high-pressure oil pump oil pipe (6) includes a connector body (6-1), a ferrule (6-2), a pipe nut (6-3), a connecting pipe (6-4), a pipe screw (6-5), a sealing ring (6-6), a lubricating component (6-7), and a high-pressure oil pump oil pipe interface (6-8). The pipe screw (6-5) passes through the connector body (6-1) and is connected to the high-pressure oil pump oil pipe interface (6-8) through the lubricating component (6-7). The connector body (6-1) is equipped with a sealing ring (6-6). The connector body (6-1) has an opening through which the connecting pipe (6-4) is installed via the ferrule (6-2) and the pipe nut (6-3).

3. A high-power, high-speed diesel engine oil slender pipeline connector according to claim 2, characterized in that, The mounting holes (1-2) for the fixing bolts are equipped with rubber washers.

4. A high-power, high-speed diesel engine oil slender pipeline connector according to claim 3, characterized in that, The six fixing bolt mounting holes (1-2) are respectively installed at the four corners and waist of the upper surface of the pipe connector (1).

5. A high-power, high-speed diesel engine oil slender pipeline connector according to claim 1, characterized in that, All of the following interfaces are equipped with sealing rings: oil supply pipe interface 1 (2-1), oil supply pipe interface 2 (3-1), seawater pump oil pipe interface (4-1), freshwater pump oil pipe interface (5-1), high-pressure oil pump oil pipe interface (6-8), drive gear oil pipe interface (7-1), oil pressure control valve inlet pipe interface (8-1), and oil pressure safety valve supply pipe interface (9-1).

6. A high-power, high-speed diesel engine oil slender pipeline connector according to claim 5, characterized in that, The oil supply pipe 1 (2), oil supply pipe 2 (3), seawater pump oil pipe (4), freshwater pump oil pipe (5), high-pressure oil pump oil pipe (6), drive gear oil pipe (7), oil pressure control valve supply pipe (8) and oil pressure safety valve supply pipe (9) are all equipped with spherical pipe joints and armored hoses, and both ends of the pipes are made of metal.

7. A high-power, high-speed diesel engine oil slender pipeline connector according to claim 6, characterized in that, The oil supply pipe 1 (2), oil supply pipe 2 (3), seawater pump oil pipe (4), freshwater pump oil pipe (5), high-pressure oil pump oil pipe (6), drive gear oil pipe (7), oil pressure control valve supply pipe (8), and oil pressure safety valve supply pipe (9) are fixed by a combination of single pipe clamp, double pipe clamp, and multiple pipe clamp.

8. A high-power, high-speed diesel engine oil slender pipeline connector according to claim 6, characterized in that, The oil supply pipe 1 (2), oil supply pipe 2 (3), seawater pump oil pipe (4), freshwater pump oil pipe (5), high-pressure oil pump oil pipe (6), drive gear oil pipe (7), oil pressure control valve supply pipe (8), and oil pressure safety valve supply pipe (9) are equipped with single-pipe clamps, double-pipe clamps, and multi-pipe clamps with rubber sleeves for protecting the pipelines.

Citation Information

Patent Citations

  • Marine diesel engine piping line compensation bracket

    CN202622616U

  • Distributor for diesel engine oil

    CN103806979A

  • Diesel engine lubricating oil pipeline connecting and sealing structure

    CN215804765U