Common rail pipe support
By designing a common rail support and utilizing structures such as main components, side components, and threaded cylinders, the problem of unstable installation of the common rail on the stamped intake pipe was solved, achieving stable installation and extended service life of the common rail, thus improving the installation stability of the engine and social benefits.
Patent Information
- Application Number
- CN202423198017.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-23
AI Technical Summary
When existing common rail pipes are installed on stamped air inlet pipes, it is difficult to ensure the consistency of the bore diameter, which makes the common rail pipes prone to displacement, deformation or damage, affecting service life and reliability.
A common rail support was designed, comprising a main component, side components, and a threaded cylinder. The common rail is secured by a threaded connection and a fixing sleeve to ensure its stable installation on the engine, and a wiring harness assembly is used to secure the wiring harness.
Effectively fixing the common rail pipe extends its service life, improves installation stability, broadens the range of engine compatibility, and increases social benefits.
Smart Images

Figure CN223536464U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of engines, and in particular to a common rail support. Background Technology
[0002] The common rail, also known as the high-pressure fuel rail, is an important component of the high-pressure common rail fuel injection system. This system is widely used in modern diesel engines to improve the accuracy of fuel injection and engine performance. There are two main installation locations for the common rail: one is on the intake manifold, and the other is on the engine block.
[0003] In practical engineering applications, some OEMs, considering costs, mostly choose stamped intake pipes. However, the welded holes of stamped intake pipes are difficult to ensure consistent diameter, which is not conducive to the installation of common rail pipes. The common rail pipe can only be fixed to the engine body, but due to vibration or vehicle movement, the common rail pipe may be displaced, which may cause pressure fluctuations inside the common rail pipe. At the same time, the common rail pipe may be deformed or damaged due to external forces, affecting its service life and reliability. Utility Model Content
[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.
[0005] In view of the problems existing in the current common rail pipe support, this utility model is proposed.
[0006] Therefore, the purpose of this utility model is to provide a common rail pipe support, which aims to solve the problem that "in actual engineering applications, some OEMs, considering costs, mostly choose stamped air intake pipes. However, the welded holes of stamped air intake pipes are difficult to ensure consistent hole diameter, which is not conducive to the arrangement of common rail pipes. The common rail pipe can only be fixed on the machine body, but due to vibration or vehicle movement, the common rail pipe may be displaced, which may lead to pressure fluctuations inside the common rail pipe. At the same time, the common rail pipe may be deformed or damaged due to external forces, affecting its service life and reliability."
[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0008] A common rail support, comprising:
[0009] The main unit includes a main component, and two sets of connecting holes are provided on one side surface of the main component;
[0010] The support unit includes two sets of side members fixedly connected to the lower surface of the main component. The outer surfaces of the two sets of side members are provided with through holes, and the inner surfaces of the two sets of side members are fixedly connected with threaded cylinders. The threaded cylinders are provided with M8 threads. The two sets of threaded cylinders are interconnected with the through holes. The lower surface of the main component is fixedly connected to a lower component, and one side surface of the lower component is provided with a circular hole. The circular hole extends to the other side area of the lower component, and a wire harness assembly is provided inside the circular hole.
[0011] As a preferred embodiment of the common rail tube support described in this utility model, the wire harness assembly includes a fixed sleeve that is rotatably connected to the inner wall surface of the circular hole, and two sets of limiting rings are fixedly connected to the outer surface of the fixed sleeve. The surfaces of the two sets of limiting rings that are close to each other are rotatably connected to the surface. The fixed sleeve has a wire harness hole inside.
[0012] As a preferred embodiment of the common rail pipe support described in this utility model, the inner wall surface of the wire harness hole is provided with a plurality of limiting grooves, and the limiting grooves are evenly arranged with the center of the circle as the center.
[0013] As a preferred embodiment of the common rail pipe support described in this utility model, the upper surfaces of both sets of side members are designed with an inclination angle, and the two sets of side members are designed with horizontal symmetry around the center.
[0014] As a preferred embodiment of the common rail pipe support described in this utility model, the main component and the side component are both made of stamped steel plate, and the main component and the side component are integrally formed sheet metal.
[0015] In a preferred embodiment of the common rail pipe support described in this utility model, the lower surfaces of both sets of threaded cylinders are in close contact with the surface of the side member, and the threaded cylinders and the side member are fixedly connected by welding.
[0016] The beneficial effects of this utility model are:
[0017] The main component is fixedly installed on the engine surface by bolts and threaded connections to the connecting holes. Then, the common rail pipe is attached to the side component, and the common rail pipe is locked by threaded connections to the threaded cylinder using fixing bolts. Finally, the wiring harness is fixed with a fixing sleeve, thus fixing the common rail pipe to the engine and extending its service life. At the same time, this structure is simple, lightweight, and expands the range of engine components, thereby releasing the production and sales capacity of engine manufacturers and increasing certain social benefits. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the 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. Among them:
[0019] Figure 1 The diagram shows a three-dimensional structure of a common rail pipe support proposed in this utility model.
[0020] Figure 2 for Figure 1 A rear view diagram of the three-dimensional structure;
[0021] Figure 3 for Figure 1 A left-side view of the three-dimensional structure;
[0022] Figure 4 This is a three-dimensional structural diagram of the wire harness assembly.
[0023] In the diagram: 100, main unit; 101, main component; 102, connecting hole; 200, support unit; 201, side component; 202, through hole; 203, threaded cylinder; 204, lower component; 205, wire harness assembly; 205a, fixing sleeve; 205b, limiting ring; 205c, wire harness hole; 205d, limiting groove. Detailed Implementation
[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0026] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.
[0027] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.
[0028] Reference Figure 1-4 This utility model provides a common rail pipe support, comprising:
[0029] The main unit 100 includes a main component 101. Two sets of connecting holes 102 are provided on one side surface of the main component 101, and the common rail bracket is fixed to the engine body by bolts.
[0030] The support unit 200 includes two sets of side members 201 fixedly connected to the lower surface of the main member 101. The outer surfaces of both sets of side members 201 are provided with through holes 202, and the inner surfaces of both sets of side members 201 are fixedly connected with threaded cylinders 203. The inside of each threaded cylinder 203 is provided with M8 threads. The two sets of threaded cylinders 203 are interconnected with the through holes 202. The lower surface of the main member 101 is fixedly connected to a lower member 204. One side surface of the lower member 204 is provided with a circular hole that extends to the other side of the lower member 204. A wire harness assembly 205 is provided inside the circular hole. The common rail tube is attached to the surface of the main member 101 through the side members 201, and then the common rail tube is locked by using a locking bolt and a threaded connection with the threaded cylinder 203.
[0031] The wire harness assembly 205 includes a fixed sleeve 205a that is rotatably connected to the inner wall surface of the circular hole, and two sets of limiting rings 205b are fixedly connected to the outer surface of the fixed sleeve 205a. The surfaces of the two sets of limiting rings 205b that are close to each other are rotatably connected to the surface of 205. The fixed sleeve 205a has a wire harness hole 205c inside for fixing the wire harness.
[0032] Furthermore, the inner wall surface of the wire harness hole 205c is provided with several limiting grooves 205d, and the limiting grooves 205d are evenly arranged with the center of 205 as the center. This can limit the wire harness inside the wire harness hole 205c and prevent the wire harness from becoming tangled.
[0033] Furthermore, the upper surfaces of both sets of side components 201 are designed with an incline, and the two sets of side components 201 are horizontally symmetrical with 104 as the center, making the engine fuel line structure more compact and the high-pressure fuel line route smoother.
[0034] Furthermore, both the main component 101 and the side component 201 are made of stamped steel sheet, and are produced as a single piece of sheet metal, effectively improving the stability of the support.
[0035] Furthermore, the lower surfaces of the two sets of threaded cylinders 203 are tightly fitted to the surface of the side member 201, and both the threaded cylinders 203 and the side member 201 are fixedly connected by welding. There must be no false welds or burns; weld slag, sharp edges, burrs, and weld beads must be removed, ensuring a stable structural function.
[0036] During use, the main component 101 is fixedly installed on the engine surface by bolts and threaded connection to the connecting hole 102. Then, the common rail tube is attached to the side component 201. Next, the common rail tube is locked by threaded connection to the threaded cylinder 203 with the fixing bolt. Finally, the wiring harness is fixed with the fixing sleeve 205a.
[0037] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A common rail pipe support, characterized in that: include: The main unit (100) includes a main component (101), and two sets of connecting holes (102) are provided on one side surface of the main component (101); The support unit (200) includes two sets of side members (201) fixedly connected to the lower surface of the main member (101). The outer surfaces of the two sets of side members (201) are provided with through holes (202). The inner surfaces of the two sets of side members (201) are fixedly connected with threaded cylinders (203), and the inside of the threaded cylinders (203) is provided with M8 threads. The two sets of threaded cylinders (203) are interconnected with the through holes (202). The lower surface of the main member (101) is fixedly connected with a lower member (204), and one side surface of the lower member (204) is provided with a circular hole. The circular hole extends to the other side area of the lower member (204), and a wire harness assembly (205) is provided inside the circular hole.
2. The common rail pipe support according to claim 1, characterized in that: The wire harness assembly (205) includes a fixed sleeve (205a) rotatably connected to the inner wall surface of the circular hole, and two sets of limiting rings (205b) are fixedly connected to the outer surface of the fixed sleeve (205a). The surfaces of the two sets of limiting rings (205b) that are close to each other are rotatably connected to the surface of 205. The fixed sleeve (205a) has a wire harness hole (205c) inside.
3. A common rail pipe support according to claim 2, characterized in that: The inner wall surface of the wire harness hole (205c) is provided with a plurality of limiting grooves (205d), and the limiting grooves (205d) are evenly arranged with the center of 205 as the center.
4. A common rail pipe support according to claim 3, characterized in that: The upper surfaces of both sets of side members (201) are designed with an incline, and the two sets of side members (201) are designed to be horizontally symmetrical with 104 as the center.
5. A common rail pipe support according to claim 4, characterized in that: The main component (101) and the side component (201) are both made of stamped steel plate, and the main component (101) and the side component (201) are integrally formed sheet metal.
6. A common rail pipe support according to claim 1, characterized in that: The lower surfaces of the two sets of threaded cylinders (203) are in close contact with the surface of the side member (201), and the threaded cylinders (203) and the side member (201) are fixedly connected by welding.