Engine oil rail

Abstract

The utility model discloses an engine oil rail which comprises a main pipeline and an energy storage mechanism. Uniformly distributed oil sealing openings are formed in the lower end of the main pipeline, and the right side of the main pipeline is in threaded connection with a connecting seat; the energy storage mechanism is arranged in the middle of the outer side of the main pipeline and comprises an end cover, a spring, a spring seat, a first sealing ring and a shell, the rear side of the shell is in threaded connection with the middle of the outer side of the main pipeline, the spring seat is slidably connected into the shell, the first sealing ring is arranged outside the spring seat in a sleeving mode, and the outer side of the first sealing ring makes contact with the inner wall of the shell; an end cover is placed at the upper end of the inner wall of the shell, a spring is placed between the end cover and a spring seat, the energy storage mechanism further comprises a clamping spring, a clamping spring seat is arranged at the upper end of the inner wall of the shell and located at the upper end of the end cover, the clamping spring is clamped in the clamping spring seat, and according to the engine oil rail, the internal pressure of a pipeline is more stable through the energy storage mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of engine oil rails, in particular to an engine oil rail. Background Art

[0002] The function of the automobile engine oil rail is to store fuel and at the same time suppress the pressure fluctuations caused by the high-pressure pump supplying fuel and the injector spraying fuel, ensuring the stability of the system pressure. The high-pressure oil rail is shared by all cylinders and is the symbol of the common rail system.

[0003] The high-pressure fuel injection pump delivers fuel into the fuel rail through the high-pressure pipeline, and then the fuel rail distributes it to the injectors of each cylinder of the engine at a stable pressure. When the injector is started, the amount of fuel inside the fuel rail decreases, and the internal pressure of the fuel rail fluctuates, which has a certain impact on the injection accuracy of the injector. For this reason, we propose an engine fuel rail. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide an engine oil rail, which can make the internal pressure of the pipeline more stable through an energy storage mechanism, and can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an engine oil rail, comprising a main pipeline and an energy storage mechanism;

[0006] Main pipeline: The lower end of the pipeline is provided with evenly distributed oil seals, and the right side of the main pipeline is threadedly connected with a connection seat;

[0007] Energy storage mechanism: It is arranged in the middle of the outer side of the main pipeline, and the energy storage mechanism makes the internal pressure of the pipeline more stable.

[0008] Furthermore, the energy storage mechanism includes an end cover, a spring, a spring seat, a sealing ring and a shell. The rear side of the shell is threadedly connected to the middle part of the outer side of the main pipeline. The inside of the shell is slidably connected with the spring seat. The outer side of the spring seat is sleeved with a sealing ring. The outer side of the sealing ring is in contact with the inner wall of the shell. The end cover is placed on the upper end of the inner wall of the shell, and a spring is placed between the end cover and the spring seat to realize fuel energy storage.

[0009] Furthermore, the energy storage mechanism also includes a retaining spring, and a retaining spring seat is provided at the upper end of the inner wall of the shell. The retaining spring seat is located at the upper end of the end cover, and the retaining spring is clamped to the inside of the retaining spring seat to prevent the end cover from falling.

[0010] Furthermore, evenly distributed mounting seats are provided at the lower end of the main pipeline, and extension seats are provided at the front and rear sides of the lower end of the mounting seats to fix the main pipeline.

[0011] Furthermore, a rail pressure sensor is threadedly connected to the left side of the main pipeline, and the rail pressure sensor is bidirectionally electrically connected to the vehicle information processing terminal to measure the internal pressure of the main pipeline.

[0012] Furthermore, it also includes sealing ring 2, sealing ring 3 and sealing ring 4, wherein the sealing ring 2 is arranged on the outside of the joint of the rail pressure sensor, the sealing ring 3 is arranged on the outside of the left joint of the connecting seat, and the sealing ring 4 is arranged on the outside of the joint on the rear side of the shell to prevent fuel leakage.

[0013] Furthermore, the main pipeline is an aluminum alloy pipeline, which reduces the weight of the pipeline and has higher strength.

[0014] Compared with the prior art, the beneficial effects of the utility model are: the engine oil rail has the following advantages:

[0015] When the engine is running, the fuel pump transfers the fuel to the main pipe, and the main pipe distributes the fuel to the injectors of each cylinder of the engine at a stable pressure. Seal rings 2, 3 and 4 prevent fuel from leaking from the various connection parts of the main pipe. At the same time, the fuel enters the shell. Seal ring 1 prevents fuel from leaking from the shell. The fuel pushes the spring seat upward due to pressure, and the spring seat slides upward. The spring contracts and converts the pressure of the fuel pushing upward into elastic potential energy. When the injector sprays fuel, the amount of oil inside the main pipe drops instantly, the amount of oil inside the main pipe fluctuates, the pressure inside the main pipe decreases instantly, the spring releases the elastic potential energy, the spring seat slides downward, the space between the bottom wall of the shell and the spring seat decreases, the pressure inside the main pipe is restored, and the potential energy is stored by the spring to make the pressure inside the main pipe more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0018] Figure 3 It is a cross-sectional structural schematic diagram of the energy storage mechanism of the utility model.

[0019] In the figure: 1 main pipeline, 2 energy storage mechanism, 21 retaining ring, 22 end cover, 23 spring, 24 spring seat, 25 sealing ring 1, 26 housing, 3 rail pressure sensor, 4 connecting seat, 5 oil seal, 6 mounting seat, 7 sealing ring 2, 8 sealing ring 3, 9 sealing ring 4. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0021] See also Figure 1-3 ,This embodiment provides a technical solution: an engine oil rail, including a main pipeline 1 and an energy storage mechanism 2;

[0022] Main pipeline 1: Its lower end is provided with evenly distributed oil seals 5, the right side of the main pipeline 1 is threadedly connected with a connection seat 4, the lower end of the main pipeline 1 is provided with evenly distributed mounting seats 6, and the front and rear sides of the lower end of the mounting seats 6 are provided with extension seats, the left side of the main pipeline 1 is threadedly connected with a rail pressure sensor 3, and the rail pressure sensor 3 is bidirectionally electrically connected with the vehicle information processing terminal. The main pipeline 1 is an aluminum alloy pipeline. When the engine is running, the fuel pump transmits the fuel to the main pipeline 1, and the main pipeline 1 distributes the fuel to the injectors of each cylinder of the engine at a stable pressure;

[0023] Energy storage mechanism 2: It is arranged in the middle of the outer side of the main pipeline 1. The energy storage mechanism 2 includes an end cover 22, a spring 23, a spring seat 24, a sealing ring 25 and a shell 26. The rear side of the shell 26 is threadedly connected to the middle of the outer side of the main pipeline 1. The inside of the shell 26 is slidably connected with the spring seat 24. The outer sleeve of the spring seat 24 is provided with a sealing ring 25. The outer side of the sealing ring 25 contacts the inner wall of the shell 26. The end cover 22 is placed on the upper end of the inner wall of the shell 26. The spring 23 is placed between the end cover 22 and the spring seat 24. The energy storage mechanism 2 also includes a retaining spring 21. The upper end of the inner wall of the shell 26 is provided with a retaining spring seat. The retaining spring seat is located at the upper end of the end cover 22. The retaining spring 21 retains the inner wall of the shell 26. The spring seat 24 slides upward, and the spring 23 contracts, converting the upward pressure of the fuel into elastic potential energy. When the injector sprays fuel, the amount of oil in the main pipe 1 drops instantly, the amount of oil in the main pipe 1 fluctuates, the pressure in the main pipe 1 decreases instantly, the spring 23 releases the elastic potential energy, the spring seat 24 slides downward, the space between the bottom wall of the housing 26 and the spring seat 24 decreases, the pressure in the main pipe 1 is restored, and the potential energy is stored by the spring 23, so that the pressure in the main pipe 1 is more stable.

[0024] Among them: it also includes a sealing ring 2 7, a sealing ring 3 8 and a sealing ring 4 9, the sealing ring 2 7 is sleeved on the outside of the joint of the rail pressure sensor 3, the sealing ring 3 8 is sleeved on the outside of the left joint of the connecting seat 4, and the sealing ring 4 9 is sleeved on the outside of the joint on the rear side of the shell 26.

[0025] The working principle of an engine oil rail provided by the utility model is as follows: the oil rail is installed on the engine through the mounting seat 6, the oil seal 5 is respectively aligned with the fuel injector, the connecting seat 4 is connected to the high-pressure oil pipe through a thread, and the rail pressure sensor 3 is bidirectionally electrically connected to the vehicle information processing terminal to complete the installation. When the engine is running, the fuel pump transmits the fuel to the main pipeline 1, and the main pipeline 1 distributes the fuel to the injectors of each cylinder of the engine according to a stable pressure. The sealing ring 2 7, the sealing ring 3 8 and the sealing ring 4 9 prevent the fuel from leaking from each connection part of the main pipeline 1, and the rail pressure sensor 3 measures the internal pressure of the main pipeline 1 in real time and feeds it back to the vehicle information processing terminal At the same time, the fuel enters the shell 26, and the sealing ring 25 prevents the fuel from leaking from the shell 26. The fuel pushes the spring seat 24 upward due to the pressure, and the spring seat 24 slides upward. The spring 23 contracts, and the pressure of the fuel pushing up is converted into elastic potential energy. When the injector sprays fuel, the amount of oil in the main pipe 1 drops instantly, the amount of oil in the main pipe 1 fluctuates, and the pressure in the main pipe 1 becomes smaller instantly. The spring 23 releases the elastic potential energy, and the spring seat 24 slides downward. The space between the bottom wall of the shell 26 and the spring seat 24 is reduced, and the pressure in the main pipe 1 is restored. The potential energy is stored by the spring 23, so that the pressure in the main pipe 1 is more stable.

[0026] It is worth noting that the rail pressure sensor 3 disclosed in the above embodiment can select 0281006364 common rail high pressure sensor, and the vehicle information processing terminal controls the rail pressure sensor 3 using a method commonly used in the prior art.

[0027] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An engine oil rail, characterized in that: It comprises a main pipeline (1) and an energy storage mechanism (2); The main pipeline (1) has evenly distributed oil seals (5) at its lower end, and a connection seat (4) is threadedly connected to the right side of the main pipeline (1); Energy storage mechanism (2): arranged in the middle of the outer side of the main pipeline (1); The energy storage mechanism (2) comprises an end cover (22), a spring (23), a spring seat (24), a sealing ring (25) and a housing (26). The rear side of the housing (26) is threadedly connected to the middle part of the outer side of the main pipe (1). The interior of the housing (26) is slidably connected to the spring seat (24). The outer side of the spring seat (24) is sleeved with a sealing ring (25). The outer side of the sealing ring (25) contacts the inner wall of the housing (26). The end cover (22) is placed on the upper end of the inner wall of the housing (26). The spring (23) is placed between the end cover (22) and the spring seat (24).

2. The engine oil rail according to claim 1, characterized in that: The energy storage mechanism (2) further comprises a retaining spring (21), a retaining spring seat is provided at the upper end of the inner wall of the housing (26), the retaining spring seat is located at the upper end of the end cover (22), and the retaining spring (21) is retained inside the retaining spring seat.

3. The engine oil rail according to claim 1, characterized in that: The lower end of the main pipeline (1) is provided with evenly distributed mounting seats (6), and the front and rear sides of the lower end of the mounting seats (6) are both provided with extension seats.

4. The engine oil rail according to claim 1, characterized in that: A rail pressure sensor (3) is threadedly connected to the left side of the main pipe (1), and the rail pressure sensor (3) is bidirectionally electrically connected to the vehicle information processing terminal.

5. The engine oil rail according to claim 4, characterized in that: It also includes a second sealing ring (7), a third sealing ring (8) and a fourth sealing ring (9), wherein the second sealing ring (7) is sleeved on the outside of the joint of the rail pressure sensor (3), the third sealing ring (8) is sleeved on the outside of the left joint of the connecting seat (4), and the fourth sealing ring (9) is sleeved on the outside of the joint on the rear side of the housing (26).

6. The engine oil rail according to claim 1, characterized in that: The main pipeline (1) is an aluminum alloy pipeline.

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