CN217233684U - Universal fuel distribution pipe for high-pressure common rail system of internal combustion engines with different cylinder numbers - Google Patents
Universal fuel distribution pipe for high-pressure common rail system of internal combustion engines with different cylinder numbers Download PDFInfo
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- CN217233684U CN217233684U CN202221085198.4U CN202221085198U CN217233684U CN 217233684 U CN217233684 U CN 217233684U CN 202221085198 U CN202221085198 U CN 202221085198U CN 217233684 U CN217233684 U CN 217233684U
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- fuel
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- common rail
- rail system
- pipe
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Abstract
The utility model discloses a but different jar number internal-combustion engine high pressure common rail system general fuel distributing pipe, including the minimum unit body, the both ends of minimum unit body are provided with fuel pressure sensor and coupling nut respectively, threaded connection has the connecting pipe on the coupling nut. The utility model discloses an adopt the modularized design, regard 2 jar distributing pipes as minimum unit distributing pipes, realized through simple but reliable connection structure that 2 jars, 4 jars, 6 jars these mainstream internal-combustion engine high pressure common rail fuel distributing pipe's spare part is general to greatly reduced development cost, guaranteed the commonality of the spare part of supplying material in batches and the convenience after sale.
Description
Technical Field
The utility model relates to a fuel distributing pipe technical field specifically is a but different jar number internal-combustion engine high pressure common rail system general fuel distributing pipe.
Background
The fuel distribution pipe belongs to an important component in a high-pressure fuel common rail injection system (hereinafter referred to as a common rail system) of a core system of an internal combustion engine product, the high-pressure fuel common rail injection system comprises a fuel metering unit, a high-pressure oil pump, a fuel distribution pipe and an oil injector, and the internal combustion engines with different cylinder numbers have different requirements on the fuel flow of the common rail system, so that the component parameters of the common rail system are different.
In the prior art, the flow requirement of the common rail system can be met by increasing the using quantity of the fuel metering units, the high-pressure oil pumps and the oil injectors, but only the fuel distributing pipes are not realized but are realized by new development, so that the universality of parts of the common rail system is greatly reduced, and the improvement is urgently needed.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem overcome prior art's defect, provide a but different jar number internal-combustion engine high pressure common rail system universal fuel distributing pipe.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a fuel distributing pipe that different cylinder numbers internal-combustion engine high pressure common rail system can be general, includes minimum unit body, the both ends of minimum unit body are provided with fuel pressure sensor and coupling nut respectively, threaded connection has the connecting pipe on the coupling nut.
Preferably, a fuel pressure sensor interface is arranged at one end of the minimum unit pipe body, the fuel pressure sensor interface is matched with the fuel pressure sensor, a high-pressure fuel inlet is arranged at the other end of the minimum unit pipe body, and two high-pressure fuel outlets are arranged on the minimum unit pipe body.
Preferably, the connecting pipe is a hollow structure, and the sectional area of the connecting pipe is the same as that of the central fuel passage of the minimum unit pipe body.
Preferably, one end of the connecting pipe adopts a fine thread structure, and the other end of the connecting pipe adopts a conical cambered surface structure.
Preferably, the inner wall of the connecting nut is carved with an internal thread matched with the conical cambered surface of the connecting pipe.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses an adopt the modularized design, regard 2 jar distributing pipes as minimum unit distributing pipes, realized through simple but reliable connection structure that 2 jars, 4 jars, 6 jars these mainstream internal-combustion engine high pressure common rail fuel distributing pipe's spare part is general to greatly reduced development cost, guaranteed the commonality of the spare part of supplying material in batches and the convenience after sale.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a minimum unit tube;
FIG. 3 is a schematic structural view of a fuel pressure sensor;
FIG. 4 is a schematic view of the coupling nut;
fig. 5 is a schematic structural view of the connection pipe.
Reference numbers in the figures: 1. a minimum unit tube body; 2. a fuel pressure sensor; 3. a connecting nut; 4. a connecting pipe; 5. a fuel pressure sensor interface; 6. a high pressure fuel inlet; 7. and a high-pressure fuel outlet.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a fuel distribution pipe which can be commonly used by high-pressure common rail systems of internal combustion engines with different cylinder numbers comprises a minimum unit pipe body 1, wherein two ends of the minimum unit pipe body 1 are respectively provided with a fuel pressure sensor 2 and a connecting nut 3, the connecting nut 3 is in threaded connection with a connecting pipe 4, one end of the minimum unit pipe body 1 is provided with a fuel pressure sensor interface 5, the fuel pressure sensor interface 5 is matched with the fuel pressure sensor 2, the fuel pressure sensor 2 can be installed through the fuel pressure sensor interface 5 so as to collect and transmit the fuel pressure value of the distribution pipe to an engine controller in real time, the other end of the minimum unit pipe body 1 is provided with a high-pressure fuel inlet 6, the engine controller controls the flow of fuel inlet, the minimum unit pipe body 1 is provided with two high-pressure fuel outlets 7 which respectively supply fuel to injectors of 2 cylinders, and the connecting pipe 4 is of a hollow structure, the sectional area of the connecting pipe is the same as that of a central fuel oil channel of the minimum unit pipe body 1, one end of the connecting pipe 4 is of a fine thread structure and is connected with and screwed up to a fuel oil pressure sensor interface 5 on the minimum unit pipe body 1, the other end of the connecting pipe 4 is of a conical arc surface structure and is connected with a high-pressure fuel oil inlet 6 of the minimum unit pipe body 1 and is screwed up to bear pressure in a sealing manner through the connecting nut 3, internal threads matched with the conical arc surface of the connecting pipe 4 are carved on the inner wall of the connecting nut 3, and the connecting pipe can be in threaded connection with one end of the conical arc surface of the connecting pipe 4.
The working principle is as follows: when the utility model is used, the fuel pressure sensor 2 can be installed through the fuel pressure sensor interface 5 at one end of the minimum unit pipe body 1 so as to collect and transmit the fuel pressure value of the distributing pipe to the engine controller in real time, the other end of the minimum unit pipe body 1 is provided with the connecting pipe 4, one end of the connecting pipe 4 adopts a fine thread structure and is connected and screwed with the fuel pressure sensor interface 5 on the minimum unit pipe body 1, the other end of the connecting pipe 4 adopts a conical cambered surface structure and is connected with the high-pressure fuel inlet 6 of the minimum unit pipe body 1, the connecting pipe 4 is in threaded connection with the connecting nut 3 matched with the connecting pipe, the connecting nut 3 can be screwed up for sealing and bearing pressure, the other end of the minimum unit pipe body 1 is provided with the high-pressure fuel inlet 6, the engine controller controls the oil inlet flow, the minimum unit pipe body 1 is provided with two high-pressure fuel outlets 7, correspond respectively to the sprayer fuel feeding to 2 jars, the utility model discloses regard 2 jars distributing pipe as minimum unit distributing pipe, realized through simple but reliable connection structure that 2 jars, 4 jars, 6 jars these mainstream internal-combustion engine high pressure common rail fuel distributing pipe's spare part is general to greatly reduced development cost, guaranteed the commonality of the spare part of supplying material in batches and the convenience after sale.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A fuel distribution pipe that different cylinder counts internal-combustion engine high pressure common rail system can be general, includes minimum unit body (1), its characterized in that: both ends of minimum unit body (1) are provided with fuel pressure sensor (2) and coupling nut (3) respectively, threaded connection has connecting pipe (4) on coupling nut (3).
2. The fuel distribution pipe universal for the high-pressure common rail system of the internal combustion engines with different cylinder numbers as claimed in claim 1, characterized in that: the fuel pressure sensor interface (5) has been seted up to the one end of minimum unit body (1), fuel pressure sensor interface (5) cooperatees with fuel pressure sensor (2), high-pressure fuel import (6) have been seted up to the other end of minimum unit body (1), just two high-pressure fuel export (7) have been seted up on minimum unit body (1).
3. The fuel distribution pipe universal for the high-pressure common rail system of the internal combustion engines with different cylinder numbers as claimed in claim 1, characterized in that: the connecting pipe (4) is of a hollow structure, and the sectional area of the connecting pipe is the same as that of a central fuel oil channel of the minimum unit pipe body (1).
4. The fuel distribution pipe universal for the high-pressure common rail system of the internal combustion engines with different cylinder numbers as claimed in claim 1, characterized in that: one end of the connecting pipe (4) adopts a fine thread structure, and the other end of the connecting pipe adopts a conical cambered surface structure.
5. The fuel distribution pipe which is universal for the high-pressure common rail system of the internal combustion engines with different cylinder numbers as claimed in claim 1, characterized in that: the inner wall of the connecting nut (3) is carved with an internal thread matched with the conical cambered surface of the connecting pipe (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221085198.4U CN217233684U (en) | 2022-05-09 | 2022-05-09 | Universal fuel distribution pipe for high-pressure common rail system of internal combustion engines with different cylinder numbers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221085198.4U CN217233684U (en) | 2022-05-09 | 2022-05-09 | Universal fuel distribution pipe for high-pressure common rail system of internal combustion engines with different cylinder numbers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217233684U true CN217233684U (en) | 2022-08-19 |
Family
ID=82822825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221085198.4U Active CN217233684U (en) | 2022-05-09 | 2022-05-09 | Universal fuel distribution pipe for high-pressure common rail system of internal combustion engines with different cylinder numbers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217233684U (en) |
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2022
- 2022-05-09 CN CN202221085198.4U patent/CN217233684U/en active Active
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