CN219366201U - Common rail high-pressure pipeline and engine - Google Patents
Common rail high-pressure pipeline and engine Download PDFInfo
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- CN219366201U CN219366201U CN202320649931.9U CN202320649931U CN219366201U CN 219366201 U CN219366201 U CN 219366201U CN 202320649931 U CN202320649931 U CN 202320649931U CN 219366201 U CN219366201 U CN 219366201U
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- oil
- common rail
- pipe
- oil outlet
- connector
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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Abstract
The utility model relates to the technical field of engines, in particular to a common rail high-pressure pipeline and an engine, comprising: common rail body, oil feed pipe, play oil pipe, advance oil connector and play oil connector, advance oil pipe through advance oil connector with common rail body coupling, go out oil pipe through go out oil connector with common rail body coupling, the outside cover of common rail body is equipped with common rail pipe sleeve, common rail pipe sleeve with common rail body sealing connection, just common rail pipe sleeve with be formed with first clearance between the common rail pipe body, advance oil connector with go out oil connector all with first clearance intercommunication. The fuel that common rail pipe body, oil feed pipe, play oil pipe leaked all can get into the inside in first clearance, has avoided the emergence of the phenomenon that the fuel leaks, and the fuel of leaking just can enter into the inside of engine along former flow direction after being full of first clearance, has guaranteed the normal operating of engine.
Description
Technical Field
The utility model relates to the technical field of engines, in particular to a common rail high-pressure pipeline and an engine.
Background
The fuel common rail system is a closed-loop fuel supply system which is composed of a fuel tank, a gear pump, an oil-water separator, a gear pump, a diesel fine filter, a high-pressure pump, a common rail pipe and a fuel injector and is used for completely separating injection pressure and injection process from each other, wherein the common rail pipe is used for distributing high-pressure oil from the oil pump to a high-pressure oil pipe of each cylinder so that a cavity can obtain relatively stable pressure to reduce fuel consumption of the fuel injector and fluctuation of fuel supply of the oil pump, and when the common rail pipe is used, leakage phenomenon caused by ageing or mechanical collision of a pipeline can occur, so that fuel in the common rail pipe cannot be normally conveyed into the engine, further uneven fuel pressure of each cavity in the engine is caused, and normal use of the engine is affected.
Disclosure of Invention
The utility model discloses a common rail high-pressure pipeline and an engine, which are used for avoiding the phenomenon that the engine cannot be normally used due to oil leakage of a common rail pipe.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
in a first aspect, the present utility model provides a common rail high pressure line comprising: the common rail pipe comprises a common rail pipe body, an oil inlet pipe, an oil outlet pipe, an oil inlet connector and an oil outlet connector;
the oil inlet pipe is connected with the common rail pipe body through the oil inlet connector, and the oil outlet pipe is connected with the common rail pipe body through the oil outlet connector;
the outside cover of common rail pipe body is equipped with common rail pipe sleeve, common rail pipe sleeve with common rail pipe body sealing connection, just common rail pipe sleeve with be formed with first clearance between the common rail pipe body, advance oil connector with go out oil connector all with first clearance intercommunication.
This application increases in the outside of common rail body and is provided with common rail pipe box to make common rail pipe box carry out the omnidirectional parcel with common rail body, and advance oil pipe and go out oil pipe and be connected with common rail body through advance oil connector and play oil connector respectively, advance oil connector and play oil connector simultaneously and communicate with first clearance respectively, on this basis, when the cracked phenomenon appears in common rail body, the inside in first clearance can be entered into by the fuel that common rail body leaked, and if go out oil pipe or advance oil pipe and appear the oil leak phenomenon, the inside in first clearance can be flowed into equally to the fuel that goes out oil pipe or advance oil pipe leaked, promptly, common rail body, advance oil pipe, the inside that goes out oil pipe leaked all can get into first clearance, the emergence of the phenomenon is leaked to the fuel has been avoided, and because advance oil pipe box and go into the inside of engine in the former flow direction after being full of first clearance to leak, normal operating of engine has been guaranteed.
Optionally, the common rail high pressure line further comprises a restrictor assembly comprising a restrictor body, a restrictor sleeve and an oil tube nut;
the oil pipe nut is arranged at one end of the oil pipe sleeve, far away from the oil outlet connector, and is used for sealing the second gap;
the oil pipe nut is provided with a side through hole for communicating the oil outlet pipe with the second gap, and the oil outlet connector is provided with an inclined through hole for connecting the first gap with the second gap.
Optionally, the restrictor sleeve is in sealing connection with the oil outlet connector through a first sealing ring.
Optionally, the restrictor sleeve is in sealing connection with the tubing nut through a second sealing ring.
Optionally, the outer side wall of the oil pipe nut is further provided with a limiting step, and when the oil pipe nut and the restrictor sleeve are in a locking state, the limiting step contacts with one end of the restrictor sleeve, which is far away from the common rail pipe body.
Optionally, the oil outlet connectors are plural, and the plural oil outlet connectors are arranged along the extending direction of the common rail pipe body.
Optionally, the oil outlet connector is further provided with an oil outlet hole for oil drainage, and a screw plug is connected to the oil outlet hole in a threaded manner, wherein the oil outlet hole is arranged on the side wall of the oil outlet connector;
or, the oil drain hole is arranged at the bottom of the oil outlet connector.
Optionally, the oil outlet connector is further provided with an oil drain hole for draining oil, and an alarm assembly is further arranged at the oil drain hole.
Optionally, the alarm assembly comprises a level sensor or an alarm.
In a second aspect, the utility model also provides an engine, comprising an engine body and the common rail high-pressure pipeline, wherein the engine body comprises an oil injection pump and an oil injector, the oil injector is communicated with an oil outlet pipeline in the common rail high-pressure pipeline, and the oil injection pump is communicated with an oil inlet pipeline in the common rail high-pressure pipeline.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a common rail high-pressure pipeline according to an embodiment of the present utility model;
FIG. 2 is a partial cross-sectional view of the interior of a flow restrictor assembly provided in an embodiment of the present utility model;
fig. 3 is a side partial cross-sectional view of an embodiment of the present utility model at the location of an oil outlet connection.
Wherein: the oil pipe comprises a 1-oil outlet pipe, a 2-oil pipe nut, a 1-side through hole, a 22-limiting step, a 23-second sealing ring, a 3-flow restrictor sleeve, a 4-flow restrictor body, a 5-common rail pipe body, a 6-oil outlet connector, a 61-inclined through hole, a 62-first sealing ring, a 7-common rail pipe sleeve, an 8-plug, a 9-oil inlet pipe, a 10-oil inlet connector, a 11-first gap, a 12-second gap and a 13-oil drain hole.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1-3, in a first aspect, the present utility model provides a common rail high pressure line, comprising: the common rail pipe comprises a common rail pipe body 5, an oil inlet pipe 9, an oil outlet pipe 1, an oil inlet connector 10 and an oil outlet connector 6;
the oil inlet pipe 9 is connected with the common rail pipe body 5 through an oil inlet connector 10, and the oil outlet pipe 1 is connected with the common rail pipe body 5 through an oil outlet connector 6;
the outside cover of common rail pipe body 5 is equipped with common rail pipe box pipe 7, and common rail pipe box pipe 7 is with common rail pipe body 5 sealing connection, and is formed with first clearance 11 between common rail pipe box pipe 7 and the common rail pipe body 5, and oil feed connector 10 and play oil connector 6 all communicate with first clearance 11.
This application increases in the outside of common rail body 5 and is provided with common rail pipe box 7 to make common rail pipe box 7 carry out the omnidirectional parcel with common rail body 5, and advance oil pipe 9 and go out oil pipe 1 and be connected with common rail body 5 through advance oil coupling body 10 and play oil coupling body 6 respectively, advance oil coupling body 10 and play oil coupling body 6 and communicate with first clearance 11 respectively simultaneously, on this basis, when the cracked phenomenon appears in common rail body 5, the inside of first clearance 11 can be entered into by the fuel that common rail body 5 leaked, and if oil pipe 1 or advance oil pipe 9 appear the oil leak phenomenon when, the inside of first clearance 11 can also be flowed into to the fuel that goes out oil pipe 1 or advance oil pipe 9 leaked, namely, common rail body 5, advance oil pipe 9, the inside that oil pipe 1 leaked all can get into first clearance 11, the emergence of the phenomenon has been avoided the fuel to leak, and because advance oil pipe box 7 and advance between common rail body 5 sealing connection, the inside that just can be followed the normal operation that the engine was got into to the engine in the former flow direction after filling up first clearance 11.
In a possible implementation, the common rail high pressure line further comprises a restrictor assembly comprising a restrictor body 4, a restrictor sleeve 3 and an oil pipe nut 2;
the flow restrictor sleeve 3 is sleeved on the outer side of the flow restrictor body 4 and is in sealing connection with the oil outlet connector 6, one end of the flow restrictor body 4 is connected with the oil outlet pipe 1, the other end of the flow restrictor body is connected with the common rail pipe body 5, a second gap 12 is formed between the flow restrictor body 4 and the flow restrictor sleeve 3, and the oil pipe nut 2 is arranged at one end of the flow restrictor sleeve 3, which is far away from the oil outlet connector 6, and is used for sealing the second gap 12;
the oil pipe nut 2 is provided with a side through hole 21 for communicating the oil outlet pipe 1 with the second gap 12, the oil outlet connector 6 is provided with an inclined through hole 61 for connecting the first gap 11 with the second gap 12, in the structure, the oil outlet pipe 1 is additionally provided with the flow restrictor body 4, and the oil outlet pipe 1 is communicated with the common rail pipe body 5 through the flow restrictor body 4, so that when oil leakage occurs in the common rail pipe body 5 or the oil outlet pipe 1 and the oil inlet pipe 9, the flow restrictor body 4 can timely seal the oil outlet pipe 1, and loss of fuel is avoided; in addition, the outside cover of current limiter body 4 is equipped with current limiter sleeve pipe 3 to form second clearance 12, when oil pipe 1 appears the phenomenon of oil leak, the fuel that leaks can get into the inside of second clearance 12 through side through-hole 21, again by the bottom that reachs second clearance 12 through second clearance 12, and enter into the inside of first clearance 11 through oblique through-hole 61 and store, prevent that the fuel from leaking to the external environment in, reduce the further pollution of fuel to external environment.
In a possible implementation manner, the restrictor sleeve 3 is in sealing connection with the oil outlet connector 6 through the first sealing ring 62, so that the connection between the restrictor sleeve 3 and the oil outlet connector 6 is sealed, and the occurrence of the leakage phenomenon of the fuel from the connection between the restrictor sleeve 3 and the oil outlet connector 6 is avoided because the side, away from the oil outlet connector 6, of the restrictor sleeve 3 is sealed through the oil pipe nut 2.
In a possible implementation manner, the flow restrictor sleeve 3 is in sealing connection with the oil pipe nut 2 through the second sealing ring 23, in the above structure, the second sealing ring 23 is additionally arranged in the application, and after the oil pipe nut 2 is in threaded connection with the flow restrictor sleeve 3, the second sealing ring 23 seals the connection part between the inner side of the oil pipe nut 2 and the outer side of the flow restrictor sleeve 3, so that the leakage phenomenon of the fuel at the connection part between the flow restrictor sleeve 3 and the oil pipe nut 2 is avoided.
In a possible implementation manner, the first sealing ring 62 and the second sealing ring 23 are O-shaped rubber sealing rings, and the first sealing ring 62 and the second sealing ring 23 are further extruded after being installed by utilizing the plasticity of rubber, so that the joint between the restrictor sleeve 3 and the oil outlet connector 6 and the joint between the restrictor sleeve 3 and the oil pipe nut 2 are sealed, and the integral tightness of the sealing ring is improved.
In a possible implementation manner, the outer side wall of the oil pipe nut 2 is further provided with a limiting step 22, when the oil pipe nut 2 and the restrictor sleeve 3 are in a locking state, the limiting step 22 is in contact with one end of the restrictor sleeve 3 far away from the common rail pipe body 5, after the oil pipe nut 2 is in threaded connection with the restrictor sleeve 3, the limiting step 22 is in contact with the restrictor sleeve 3 and is matched with a second sealing ring 23 to seal the second gap 12, and on the basis, if fuel oil leaks at the position of the oil outlet pipe 1, the leaked fuel oil can also reach the first gap 11 from the second gap 12, so that the fuel oil is prevented from leaking into the external environment.
In the mode that probably realizes, the play oil connector 6 has a plurality ofly, and a plurality of play oil connector 6 arrange along the extending direction of common rail pipe body 5, in the above-mentioned structure, play oil connector 6 in this application have a plurality ofly, and the length of common rail pipe body 5 in this application can customize simultaneously, and simultaneously, the interval length between a plurality of play oil connector 6 also can customize, and wherein the length of common rail pipe body 5, the interval between a plurality of play oil connector 6 all can change the customization according to actual need, and the commonality is better.
Optionally, the oil outlet connector 6 is further provided with an oil outlet hole 13 for oil outlet, and a screw plug 8 is connected at the position of the oil outlet hole 13 in a threaded manner, wherein the oil outlet hole 13 is arranged on the side wall of the oil outlet connector 6;
or, the oil drain hole 13 is arranged at the bottom of the oil outlet connector 6, in the structure, the position of the oil drain hole 13 can be arranged on the side wall or the bottom of the oil outlet connector 6, when in actual use, the position of the oil drain hole 13 can be changed according to actual needs, meanwhile, the screw plug 8 is in threaded connection with the oil drain hole 13, when the common rail pipe body 5 needs to be overhauled, a worker can pour the fuel oil in the first gap 11 by screwing off the screw plug 8, and the overhauling is convenient.
In a possible implementation manner, the oil outlet connector 6 is further provided with an oil outlet hole 13 for oil outlet, an alarm assembly is further arranged at the oil outlet hole 13, leakage of the common rail pipe body 5 or the oil inlet pipe 9 or the oil outlet pipe 1 is early warned in advance, and a worker can overhaul the common rail pipe body 5 conveniently.
In the mode that probably realizes, alarm component includes level sensor or alarm, in the above-mentioned structure, this application can be in the position department installation of drain hole 13 be used for detecting the level high level sensor, through the display above the level sensor, the audio-visual condition of knowing whether the oil leak appears in common rail body 5 inside, the staff of being convenient for overhauls, in addition, drain hole 13 in this application can also set up the alarm, through the mode of going out the guide oil, with the fuel leading-in alarm in, report to the police in the first time that the fuel leaked, the staff of being convenient for overhauls.
In a second aspect, the utility model further provides an engine, which comprises an engine body and the common rail high-pressure pipeline as described in any one of the above, wherein the engine body comprises an oil injection pump and an oil injector, the oil injector is communicated with an oil outlet pipe 1 in the common rail high-pressure pipeline, the oil injection pump is communicated with an oil inlet pipe 9 in the common rail high-pressure pipeline, the common rail pipe sleeve 7 and the restrictor sleeve 3 are additionally arranged, the effect of fully wrapping the common rail pipe body 5 and the restrictor body 4 is achieved, meanwhile, the oil inlet connector 10 and the oil outlet connector 6 are additionally arranged, the joint between the oil inlet pipe 9 and the oil outlet pipe 1 can be wrapped, the fact that fuel oil in the oil inlet pipe 9, the common rail pipe body 5 and the oil outlet pipe 1 cannot leak into the external environment is guaranteed, and meanwhile, the restrictor body 4 is additionally arranged, so that the safety protection requirements can be fully met.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims and the equivalents thereof, the present application is intended to cover such modifications and variations.
Claims (10)
1. A common rail high pressure line, comprising: the common rail pipe comprises a common rail pipe body, an oil inlet pipe, an oil outlet pipe, an oil inlet connector and an oil outlet connector;
the oil inlet pipe is connected with the common rail pipe body through the oil inlet connector, and the oil outlet pipe is connected with the common rail pipe body through the oil outlet connector;
the outside cover of common rail pipe body is equipped with common rail pipe sleeve, common rail pipe sleeve with common rail pipe body sealing connection, just common rail pipe sleeve with be formed with first clearance between the common rail pipe body, advance oil connector with go out oil connector all with first clearance intercommunication.
2. The common rail high pressure line of claim 1, further comprising a restrictor assembly comprising a restrictor body, a restrictor sleeve, and an oil tube nut;
the oil pipe nut is arranged at one end of the oil pipe sleeve, far away from the oil outlet connector, and is used for sealing the second gap;
the oil pipe nut is provided with a side through hole for communicating the oil outlet pipe with the second gap, and the oil outlet connector is provided with an inclined through hole for connecting the first gap with the second gap.
3. The common rail high pressure line according to claim 2, wherein the restrictor sleeve is sealingly connected to the oil outlet connection via a first sealing ring.
4. The common rail high pressure line of claim 2, wherein the restrictor sleeve is sealingly connected to the oil pipe nut by a second seal ring.
5. The common rail high pressure pipe according to claim 2, wherein the outer side wall of the oil pipe nut is further provided with a limit step, and the limit step is in contact with an end of the restrictor sleeve away from the common rail pipe body when the oil pipe nut and the restrictor sleeve are in a locked state.
6. The common rail high pressure pipe according to claim 1, wherein the plurality of oil outlet connectors are arranged along the extending direction of the common rail pipe body.
7. The common rail high pressure pipeline according to claim 1, wherein the oil outlet connector is further provided with an oil outlet hole for oil discharge, and a screw plug is connected to the oil outlet hole in a threaded manner, wherein the oil outlet hole is arranged on the side wall of the oil outlet connector;
or, the oil drain hole is arranged at the bottom of the oil outlet connector.
8. The common rail high pressure pipeline according to claim 1, wherein the oil outlet connector is further provided with an oil drain hole for draining oil, and an alarm assembly is further arranged at the oil drain hole.
9. The common rail high pressure circuit of claim 8, wherein the alarm assembly comprises a level sensor or an alarm.
10. An engine comprising an engine block and a common rail high pressure line as claimed in any one of claims 1 to 9, the engine block comprising an injection pump and an injector, the injector being in communication with an outlet line in the common rail high pressure line, the injection pump being in communication with an inlet line in the common rail high pressure line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320649931.9U CN219366201U (en) | 2023-03-29 | 2023-03-29 | Common rail high-pressure pipeline and engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320649931.9U CN219366201U (en) | 2023-03-29 | 2023-03-29 | Common rail high-pressure pipeline and engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219366201U true CN219366201U (en) | 2023-07-18 |
Family
ID=87117628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320649931.9U Active CN219366201U (en) | 2023-03-29 | 2023-03-29 | Common rail high-pressure pipeline and engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219366201U (en) |
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2023
- 2023-03-29 CN CN202320649931.9U patent/CN219366201U/en active Active
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