A fuel common rail pipe

Abstract

The utility model relates to a kind of fuel common rail pipe, including: communication cylinder, its one end is provided with oil inlet pipe, the inside of communication cylinder is provided with vertical plate, the center of vertical plate is provided with arc plate, through slot is opened in the inside of arc plate, the inner wall of arc plate is provided with the closure assembly for closing through slot, the both ends of arc plate are provided with rotating ring, the position of the outer wall of communication cylinder and through slot is provided with multiple discharge pipes corresponding.The utility model relates to fuel common rail pipe technical field.This kind of fuel common rail pipe, when cleaning filter plate, only need to rotate arc filter plate, can effectively improve the convenience of filter plate cleaning, while plane filter plate and arc filter plate are connected together, the strength of arc filter plate can be effectively improved, filter plate can be effectively protected to prevent deformation in the process of pulling, and the problem of reducing filtration effect occurs.

Description

Technical Field

[0001] This utility model relates to the field of fuel common rail technology, and in particular to a fuel common rail. Background Technology

[0002] In a fuel injection system, the common rail is an important component that stores and delivers fuel and is a crucial element connecting the fuel pump and the fuel injectors.

[0003] Chinese Patent Publication No. CN221896720U discloses a common rail fuel line, comprising a pipe body for fuel passage, an inlet on one outer wall of the pipe body for fuel entry, and multiple nozzle interfaces for connecting fuel injectors on the other outer wall of the pipe body. One end of the pipe body has a return port. The line also includes an anti-clogging mechanism to prevent clogging of the nozzle interfaces. The anti-clogging mechanism includes a block integrally formed on the inner wall of the pipe body and a filter screen sealed on the block. The block has a groove communicating with the nozzle interfaces, and sealing grooves are formed on both inner walls of the groove. The filter screen is installed inside the sealing grooves. This device has a simple structure and is easy to use. Fuel entering the pipe body must be filtered by the filter screen before being delivered to the nozzle interfaces, effectively preventing impurities from clogging the fuel injectors and ensuring the normal operation of the equipment.

[0004] Although the aforementioned patent can filter oil through a filter screen, cleaning the filter screen requires pulling it out and then cleaning it. Therefore, the maintenance of the filter screen is relatively inconvenient, and after long-term use, problems such as the filter screen deforming and getting stuck are likely to occur. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a common rail fuel line in order to solve the technical problems mentioned in the background.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A common rail fuel line includes:

[0008] The connecting cylinder has an oil inlet pipe at one end, a vertical plate inside the connecting cylinder, an arc-shaped plate at the center of the vertical plate, a through groove inside the arc-shaped plate, a closing component for sealing the through groove on the inner wall of the arc-shaped plate, rotating rings at both ends of the arc-shaped plate, and multiple discharge pipes at positions corresponding to the through groove on the outer wall of the connecting cylinder.

[0009] The flat filter plate is rotatably set inside two rotating rings, and an arc-shaped filter plate is provided on one side of the flat filter plate;

[0010] Rotating tubes are installed at both ends of the connecting cylinder, corresponding to the positions of the rotating ring.

[0011] Furthermore, the closure component includes:

[0012] The arc-shaped groove is formed on the inner wall of the arc-shaped plate and is coaxially arranged with the arc-shaped plate;

[0013] The baffle plate is rotatably mounted inside the arc-shaped groove and is coaxially mounted with the arc-shaped plate.

[0014] Furthermore, one of the rotating tubes is provided with an adjusting shaft inside, which is fixedly connected to the baffle plate. The end wall of the adjusting shaft and the end wall of the corresponding rotating tube are provided with an indicator scale to reflect the position of the arc plate.

[0015] Furthermore, another rotating tube is provided with a backwashing shaft inside, which is fixedly connected to the arc-shaped filter plate and the flat filter plate. The backwashing shaft is provided with two cleaning tubes inside, which are symmetrically arranged with respect to the flat filter plate.

[0016] Furthermore, the outer arc surface of the arc-shaped filter plate is concave, and the outer walls of both the arc-shaped filter plate and the flat filter plate are in contact with the inner wall of the rotating ring.

[0017] Furthermore, both the inlet pipe and the outlet pipe are equipped with closing valves at their ends.

[0018] Furthermore, the outer wall of the connecting cylinder is fixedly provided with several fixing lugs, and bolt holes are opened inside the fixing lugs.

[0019] In summary, this utility model has at least one of the following beneficial technical effects:

[0020] 1. This common rail fuel line allows for easy cleaning of the filter plates by simply rotating the arc-shaped filter plate. The connection between the flat and arc-shaped filter plates enhances the strength of the arc-shaped filter plate and protects it from deformation during the pulling process, which could reduce the filtration efficiency.

[0021] 2. This common rail fuel line includes two cleaning pipes: a water inlet pipe and a drain pipe. The drain pipe is positioned opposite the outer arc surface of the arc-shaped filter plate. The water inlet pipe is located on the side of the flat filter plate where the arc-shaped filter plate is not located. During cleaning, cleaning fluid is supplied to the water inlet pipe. The cleaning fluid first passes through the flat filter plate and then through the arc-shaped filter plate, squeezing out the impurities adhering to the outer arc surface of the arc-shaped filter plate, thereby achieving the purpose of backwashing the arc-shaped filter plate. After backwashing, the wastewater is discharged through the drain pipe. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of a common rail fuel line according to the present invention.

[0024] Figure 2 This is an exploded view of the internal structure of a common rail fuel line according to this utility model.

[0025] Figure 3 This is a schematic diagram of the internal structure of a common rail fuel line according to the present invention.

[0026] Figure 4 This is a schematic diagram of the planar filter plate and the arc-shaped filter plate of a fuel common rail during backwashing according to the present invention.

[0027] In the diagram, 1. Connecting cylinder; 2. Oil inlet pipe; 3. Vertical plate; 4. Arc-shaped plate; 5. Through groove; 6. Closure assembly; 61. Arc-shaped groove; 62. Baffle plate; 7. Rotating ring; 8. Discharge pipe; 9. Flat filter plate; 10. Arc-shaped filter plate; 11. Rotating pipe; 12. Adjusting shaft; 13. Backwashing shaft; 14. Cleaning pipe; 15. Fixed lug. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings. Example

[0029] Reference Figures 1-4 The present invention discloses a common rail fuel line, comprising:

[0030] The connecting cylinder 1 has an oil inlet pipe 2 at one end, a vertical plate 3 inside the connecting cylinder 1, an arc plate 4 at the center of the vertical plate 3, a through groove 5 inside the arc plate 4, a closing component 6 for closing the through groove 5 on the inner wall of the arc plate 4, a rotating ring 7 at both ends of the arc plate 4, and multiple discharge pipes 8 at positions corresponding to the through groove 5 on the outer wall of the connecting cylinder 1.

[0031] A flat filter plate 9 is rotatably disposed inside two rotating rings 7, and an arc-shaped filter plate 10 is provided on one side of the flat filter plate 9;

[0032] Rotating tubes 11 are provided at both ends of the connecting cylinder 1 at positions corresponding to the rotating ring 7.

[0033] In this embodiment, during use, the oil inlet pipe 2 is connected to the oil supply pipe, and the oil supply pipe introduces the oil into the interior of the connecting cylinder 1. At this time, the oil passes through the arc-shaped filter plate, and the impurities in the oil are filtered out by the arc-shaped filter plate 10. The oil itself passes through the arc-shaped filter plate 10 and the flat filter plate 9, and then enters the discharge pipe 8 through the through groove 5, and is discharged through each discharge pipe 8.

[0034] When cleaning the arc-shaped filter plate 10 is required at one end, first, the oil inlet pipe 2 is closed, and the residual oil inside the connecting cylinder 1 is discharged through the discharge pipe 8. After no oil is discharged from the end of the discharge pipe 8, the discharge pipe 8 is closed, and the closing component 6 is rotated to close the through groove 5. At this time, the inside of the connecting cylinder 1 is divided into two cavities by the arc-shaped plate 4 and the vertical plate 3. Then, the flat filter plate 9 and the arc-shaped filter plate 10 are rotated so that the outer arc surface of the arc-shaped filter plate 10 corresponds to the arc-shaped plate 4. At this time, the cleaning fluid for cleaning the arc-shaped filter plate 10 is introduced into the inside of the connecting cylinder 1 to flush the impurities remaining on the surface of the arc-shaped filter plate 10 into the inner side of the arc-shaped plate 4, thereby achieving the effect of cleaning the arc-shaped filter plate 10.

[0035] Compared to existing technologies, when cleaning the filter plates, only the arc-shaped filter plate 10 needs to be rotated, which can effectively improve the convenience of cleaning the filter plates. At the same time, the connection between the flat filter plate 9 and the arc-shaped filter plate 10 can effectively improve the strength of the arc-shaped filter plate 10, which can effectively protect the filter plates from deformation during the pulling process, thus preventing the problem of reduced filtration effect.

[0036] In a further preferred embodiment of this utility model, such as Figure 2 As shown, the closure component 6 includes:

[0037] The arc-shaped groove 61 is formed on the inner wall of the arc-shaped plate 4 and is coaxially arranged with the arc-shaped plate 4;

[0038] The baffle plate 62 is rotatably disposed inside the arc-shaped groove 61 and is coaxially disposed with the arc-shaped plate 4.

[0039] In this embodiment, the arc-shaped groove 61 is used to guide the baffle plate 62. When the fuel common rail is in normal use, the baffle plate 62 is located at the top of the arc-shaped groove 61, intersecting with the position of the through groove 5, such as... Figure 2 As shown, at this time, after the oil passes through the arc-shaped filter plate and the flat filter plate, it can enter the discharge pipe 8 through the through groove 5 and then be discharged through the discharge pipe 8.

[0040] When cleaning the fuel common rail, the baffle plate 62 rotates to the bottom of the arc groove 61, which can block the through groove 5. This prevents the cleaning fluid from carrying impurities into the discharge pipe 8 when the cleaning fluid is introduced into the through cylinder 1.

[0041] In a further preferred embodiment of this utility model, such as Figure 2 As shown, one of the rotating tubes 11 has an adjusting shaft 12 inside, which is fixedly connected to the baffle plate 62. The end wall of the adjusting shaft 12 and the end wall of the corresponding rotating tube 11 are provided with an indicator scale to reflect the position of the arc plate 4.

[0042] In this embodiment, the adjusting shaft 12 and the corresponding rotating tube 11 are rotatably connected by a sealed bearing, which can prevent oil or cleaning fluid from being discharged through the gap between the adjusting shaft 12 and the rotating tube 11. The preferred indicator scale includes a fixed scale and a rotating scale. The fixed scale is located at the opening of the rotating tube 11 and corresponds to the position of the through groove 5. The rotating scale is located at the end of the adjusting shaft 12 and corresponds to the position of the baffle plate 62. Therefore, when the adjusting shaft 12 is rotated externally, the positional relationship between the baffle plate 62 and the through groove 5 can be intuitively felt.

[0043] In a further preferred embodiment of this utility model, such as Figure 2 and Figure 4 As shown, another rotating tube 11 has a backwashing shaft 13 rotatably mounted inside it. The backwashing shaft 13 is fixedly connected to the arc-shaped filter plate 10 and the flat filter plate 9. The backwashing shaft 13 has two cleaning tubes 14 inside it, which are symmetrically arranged with respect to the flat filter plate 9.

[0044] In this embodiment, the two cleaning pipes 14 are a water inlet pipe and a sewage outlet pipe, respectively. The position of the sewage outlet pipe corresponds to the outer arc surface of the arc-shaped filter plate 10. The water inlet pipe is located on the side of the flat filter plate 9 where the arc-shaped filter plate 10 is not provided. During cleaning, cleaning fluid is provided to the water inlet pipe. At this time, the cleaning fluid will first pass through the flat filter plate 9 and then through the arc-shaped filter plate 10, squeezing out the impurities adhering to the outer arc surface of the arc-shaped filter plate 10, thereby achieving the purpose of backwashing the arc-shaped filter plate 10. After backwashing, the sewage is discharged through the sewage outlet pipe.

[0045] In a further preferred embodiment of this utility model, such as Figure 2 and Figure 4 As shown, the outer arc surface of the arc-shaped filter plate 10 is concave, and the outer walls of both the arc-shaped filter plate 10 and the flat filter plate 9 are in contact with the inner wall of the rotating ring 7.

[0046] In this embodiment, the concave arc-shaped filter plate 10 is designed to facilitate the collection of impurities. When the arc-shaped filter plate 10 is rotated to correspond with the arc-shaped plate 4, a gap is formed between the filter plate 10 and the arc-shaped plate 4 to facilitate the backwashing of contaminated impurities.

[0047] In a further preferred embodiment of this utility model, such as Figure 1 As shown, both the inlet pipe 2 and the outlet pipe 8 are equipped with closing valves at their ends.

[0048] In this embodiment, by setting a closed valve, the oil inlet pipe 2 and the outlet pipe 8 are sealed during cleaning to prevent the cleaning fluid from entering the oil inlet pipe 2 and the outlet pipe 8.

[0049] In a further preferred embodiment of this utility model, such as Figure 1 As shown, a plurality of fixing lugs 15 are fixedly provided on the outer wall of the connecting cylinder 1, and bolt holes are provided inside the fixing lugs 15.

[0050] In this embodiment, the fixed lug 15 is provided to facilitate the connection of the connecting cylinder 1 to the equipment using the fuel common rail.

[0051] The implementation principle of the above embodiment is as follows: First, the oil inlet pipe 2 is closed, and the residual oil inside the connecting cylinder 1 is discharged through the discharge pipe 8. After no oil is discharged from the end of the discharge pipe 8, the discharge pipe 8 is closed, and the closing component 6 is rotated to close the through groove 5. At this time, the inside of the connecting cylinder 1 is divided into two cavities by the arc plate 4 and the vertical plate 3. Then, the flat filter plate 9 and the arc filter plate 10 are rotated so that the outer arc surface of the arc filter plate 10 corresponds to the arc plate 4. At this time, the cleaning fluid for cleaning the arc filter plate 10 is introduced into the inside of the connecting cylinder 1 to flush the impurities remaining on the surface of the arc filter plate 10 into the inner side of the arc plate 4, thereby achieving the effect of cleaning the arc filter plate 10.

[0052] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A common rail fuel line, characterized in that, Including: A connecting cylinder (1) is provided with an oil inlet pipe (2) at one end. A vertical plate (3) is provided inside the connecting cylinder (1). An arc plate (4) is provided at the center of the vertical plate (3). A through groove (5) is provided inside the arc plate (4). A closing component (6) for closing the through groove (5) is provided on the inner wall of the arc plate (4). Rotating rings (7) are provided at both ends of the arc plate (4). Multiple discharge pipes (8) are provided on the outer wall of the connecting cylinder (1) at positions corresponding to the through groove (5). A flat filter plate (9) is rotatably disposed inside two rotating rings (7), and an arc-shaped filter plate (10) is disposed on one side of the flat filter plate (9). Rotating tubes (11) are provided at both ends of the connecting tube (1) at positions corresponding to the rotating ring (7).

2. A common rail fuel line according to claim 1, characterized in that, The closing component (6) includes: The arc-shaped groove (61) is formed on the inner wall of the arc-shaped plate (4) and is coaxial with the arc-shaped plate (4); The baffle plate (62) is rotatably disposed inside the arc groove (61) and is coaxially disposed with the arc plate (4).

3. A common rail fuel line according to claim 2, characterized in that, One of the rotating tubes (11) is provided with an adjusting shaft (12) inside, which is fixedly connected to the baffle plate (62). The end wall of the adjusting shaft (12) and the end wall of the corresponding rotating tube (11) are provided with an indicator scale to reflect the position of the arc plate (4).

4. A common rail fuel line according to claim 3, characterized in that, Another rotating tube (11) is provided with a backwashing shaft (13) inside. The backwashing shaft (13) is fixedly connected to the arc-shaped filter plate (10) and the flat filter plate (9). The backwashing shaft (13) is provided with two cleaning tubes (14) inside. The two cleaning tubes (14) are symmetrically arranged with respect to the flat filter plate (9).

5. A common rail fuel line according to claim 4, characterized in that, The outer arc surface of the arc-shaped filter plate (10) is concave, and the outer walls of both the arc-shaped filter plate (10) and the flat filter plate (9) are in contact with the inner wall of the rotating ring (7).

6. A common rail fuel line according to claim 5, characterized in that, Both the inlet pipe (2) and the outlet pipe (8) are equipped with closing valves.

7. A common rail fuel line according to claim 6, characterized in that, The outer wall of the connecting tube (1) is fixedly provided with several fixed lugs (15), and bolt holes are opened inside the fixed lugs (15).

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