CN201057118Y - High-pressure oil pipe assembly for diesel engine - Google Patents
High-pressure oil pipe assembly for diesel engine Download PDFInfo
- Publication number
- CN201057118Y CN201057118Y CNU2007200244073U CN200720024407U CN201057118Y CN 201057118 Y CN201057118 Y CN 201057118Y CN U2007200244073 U CNU2007200244073 U CN U2007200244073U CN 200720024407 U CN200720024407 U CN 200720024407U CN 201057118 Y CN201057118 Y CN 201057118Y
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- China
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- pressure oil
- diesel engine
- rail
- oil pipe
- high pressure
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- Expired - Lifetime
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Abstract
The utility model discloses a high pressure oil pipe assembly for diesel engine, comprising six high pressure oil pipes communicated with all injectors on a six-cylinder diesel engine and high pressure oil rail under the injectors and two pump rail high pressure oil pipes communicated with oil pumps and the high pressure oil rail. After the high pressure high oil pipe extends upward for a distance from the high pressure oil rail, the two high pressure oil pipes at the left of the high pressure oil rail first extend leftward horizontally along the body of the diesel engine, then crookedly extend towards the body and are respectively connected with all injectors corresponding to the two high pressure oil pipes; the four high pressure oil pipes at the right of the high pressure oil rail first extend rightward horizontally along the body of the diesel engine, then crookedly extend towards the body and are respectively connected with all injectors corresponding to the four high pressure oil pipes. The utility model can bear the high pressure required by the high pressure common rail injection system for diesel engine, reduce oil pipe vibration and has no leakage, deformation and good stability.
Description
Technical field
The utility model relates to a kind of technical field of diesel engine, especially relates to the use for diesel engine high-pressure oil pipe assembly in a kind of diesel engine high-pressure co-rail ejecting system.
Background technique
Diesel engine, to be widely used in the equipment such as generating, transportation, especially resembles on some large-scale Transport Machinery because of its good power performance at present as a kind of power tool.And along with the raising of people's living standard and the reinforcement of environmental consciousness, the requirement of Abgasgesetz is also more and more stricter, and people not only need diesel engine to have strong impetus and reliable service behaviour, also need diesel engine to have low emission, low noise.Therefore adopt that advanced injection system--the Europe III diesel engine of-high-pressure common-rail injection system has obtained promotion and application rapidly.Present most widely used common rail for diesel engine formula electronic fuel injection technology, the Computer Control Technology that has been integrated, modern sensing detection technology and advanced oil spout structure, can not only reach higher jet pressure, realize the control of jet pressure and fuel injection quantity, can realize pre-spray and back spray optimization, the injection characteristics shape, and injection pressure, time, oil mass and fuel injection characteristic flexibility are adjustable, huge to engine emission and Economy contribution, thereby raising fuel utilization ratio, reduce diesel engine noise and significantly reduce the exhaust gas discharging amount, and then make the Economy of diesel engine, power character and emission performance are obviously promoted.And high-pressure oil pipe is as the high pressure oil rail that is communicated with diesel engine and the passage of sparger, it not only wants to bear the frequent impacting with high pressure of high pressure fuel, to guarantee the proper functioning of diesel engine, but also to avoid excessive vibrations, in order to avoid cause that oil connection is loosening or damage and cause fuel leakage, or the stress that produces because of tubing bending is to the infringement of oil pipe.Therefore the Manufacturing material of high-pressure oil pipe, physical dimension, withstand voltage properties etc., especially the trend of high-pressure oil pipe and length all have a direct impact the overall performance of motor, especially to multi-cylinder diesel engine, as if six-cylinder diesel engine exists in the high-pressure common-rail injection system of many high-pressure oil pipes like this, this require even more important.Therefore this just needs rationally to arrange high-pressure oil pipe on the body of diesel engine, has good working performance to guarantee diesel engine.
Summary of the invention
The technical problems to be solved in the utility model has provided a kind of use for diesel engine high-pressure oil pipe assembly, and it can bear the required high pressure of diesel engine high-pressure co-rail ejecting system, reduces the high-pressure oil pipe vibrations, does not ooze dew, and indeformable, steadiness is good.
For solving the problems of the technologies described above, the technical solution of the utility model is: use for diesel engine high-pressure oil pipe assembly, comprise the six roots of sensation high-pressure oil pipe that is communicated with each oil sprayer and the high pressure oil rail that is positioned at the oil sprayer below on the six-cylinder diesel engine, two pump rail high-pressure oil pipes that are communicated with oil pump and high pressure oil rail, after described high-pressure oil pipe extends upward a distance by high pressure oil rail, two high-pressure oil pipes that are positioned at the high pressure oil rail left end laterally connect to body bending extension and each corresponding with two high-pressure oil pipes respectively oil sprayer after the bodies of diesel engine extend left earlier again, and four high-pressure oil pipes that are positioned at the high pressure oil rail right-hand member laterally connect to body bending extension and each corresponding with four high-pressure oil pipes respectively oil sprayer after the bodies of diesel engine extend to the right earlier again.
As a kind of improvement, described adjacent two high-pressure oil pipes are listed as one group during along the body horizontal expansion of diesel engine, and described respectively the group is respectively equipped with fixing clamp on the high-pressure oil pipe.
As further improvement, described fixing clamp is respectively organized body horizontal expansion place of high-pressure oil pipe along diesel engine being provided with respectively.
As further improvement, described two pump rail high-pressure oil pipes are arranged in parallel and are communicated with filler opening between two groups of high-pressure oil pipes of high pressure oil rail left end.
As further improvement, described each high-pressure oil pipe extends upward and along diesel-engine body horizontal expansion planes overlapping.
As further improvement, described pump rail high-pressure oil pipe is parallel with the oil outlet that the high-pressure oil pipe high pressure oil rail is communicated with the filler opening that high pressure oil rail is communicated with.
As further improvement, six roots of sensation high-pressure oil pipe has identical length.
The use for diesel engine high-pressure oil pipe assembly of technique scheme, owing to be to have adopted the six roots of sensation high-pressure oil pipe that is communicated with each oil sprayer and the high pressure oil rail that is positioned at the oil sprayer below on the six-cylinder diesel engine, two pump rail high-pressure oil pipes that are communicated with oil pump and high pressure oil rail, after described high-pressure oil pipe extends upward a distance by high pressure oil rail, two high-pressure oil pipes that are positioned at the high pressure oil rail left end laterally connect to body bending extension and each corresponding with two high-pressure oil pipes respectively oil sprayer after the bodies of diesel engine extend left earlier again, four high-pressure oil pipes that are positioned at the high pressure oil rail right-hand member laterally connect to body bending extension and each corresponding with four high-pressure oil pipes respectively oil sprayer after the bodies of diesel engine extend to the right earlier again, the layout of separating extension arranged side by side by high-pressure oil pipe, not only can on the body of diesel engine, carry out good fixing by fixing clamp to it easily, suppress dither, the fuel leakage phenomenon that causes to avoid its undue oscillation, and reduced noise, make high-pressure oil pipe can bear the required high pressure of ejecting system, do not ooze dew, indeformable, steadiness is good.By the extension of high-pressure oil pipe on body, not only make high-pressure oil pipe have suitable length, and changed the tubing bending radius simultaneously, concentrate the destruction of causing so that reduce stress.Be provided with fixing clamp at each group high-pressure oil pipe along body horizontal expansion place of diesel engine, improved the antivibration ability of high-pressure oil pipe and the rigidity of high-pressure oil pipe.Pump rail high-pressure oil pipe be arranged in parallel simultaneously its with the filler opening that is communicated with at high pressure oil rail between two groups of high-pressure oil pipes of left end, and pump rail high-pressure oil pipe is parallel with the oil outlet that high-pressure oil pipe is communicated with high pressure oil rail with the filler opening that high pressure oil rail is communicated with, and each high-pressure oil pipe extends upward and along diesel-engine body horizontal expansion planes overlapping, these have not only made things convenient for the installation and design of high-pressure oil pipe assembly, and easy to maintenance, the tidiness height.Adopt high-pressure oil pipe to have identical length and avoid the pressure loss minimum of high pressure oil rail to oil nozzle, also make the equal in length of the high-pressure oil pipe on each cylinder of diesel engine, so that each oil sprayer of diesel engine has identical injection pressure, reduced the deviation of fuel injection quantity between each cylinder of diesel engine.
Description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is further described.
Fig. 1 is the structural representation of the utility model use for diesel engine high-pressure oil pipe assembly;
Fig. 2 is the plan view of Fig. 1.
Embodiment
As depicted in figs. 1 and 2, use for diesel engine high-pressure oil pipe assembly, be the oil sprayer that on each cylinder of six-cylinder diesel engine, is provided with, oil pump, the diesel-engine body that is positioned at the oil sprayer below is provided with high pressure oil rail, between the oil sprayer of high pressure oil rail and each cylinder, be communicated with high-pressure oil pipe 1 respectively, between oil pump and high pressure oil rail, be provided with two pump rail high-pressure oil pipes 2, each high-pressure oil pipe 1 extends upward a distance by high pressure oil rail, two high-pressure oil pipes that are positioned at the high pressure oil rail left end afterwards laterally extend left along the body of diesel engine earlier, and then connect to body bending extension and each corresponding with two high-pressure oil pipes respectively oil sprayer; And four high-pressure oil pipes that are positioned at the high pressure oil rail right-hand member laterally extend to the right along the body of diesel engine earlier, and then connect to body bending extension and each corresponding with four high-pressure oil pipes respectively oil sprayer.And adjacent two high-pressure oil pipes are listed as one group during along the body horizontal expansion of diesel engine, and on each group high-pressure oil pipe, be respectively equipped with fixing clamp 3, by fixing clamp 3 high-pressure oil pipe is fixed, cause that with the excessive shock of avoiding high-pressure oil pipe oil connection becomes flexible or damage causes fuel leakage, for vibrations and the antivibration ability that further alleviates high-pressure oil pipe, can be increased in the quantity of fixing clamp on the high-pressure oil pipe 1 or the mounting point of change fixing clamp.And the installation and design of high-pressure oil pipe assembly for convenience, and improving the antivibration ability of high-pressure oil pipe and the rigidity of high-pressure oil pipe, fixing clamp 3 can be provided with respectively and respectively organize body horizontal expansion place of high-pressure oil pipe along diesel engine.And high-pressure oil pipe can adopt the Precision Seamless Steel Tubes material, make it can bear the high pressure of 180MPa, with its stiffness of further raising, thereby satisfy the technical requirements and the Performance Match of high-pressure electric control fuel injection system, to bear the required high pressure of ejecting system, do not ooze dew, indeformable, steadiness is good.
Two pump rail high-pressure oil pipes 2 can adopt the mode that is arranged in parallel and be communicated with filler opening between two groups of high-pressure oil pipes of high pressure oil rail left end, and each high-pressure oil pipe extends upward and along diesel-engine body horizontal expansion planes overlapping, the filler opening that adopts pump rail high-pressure oil pipe and high pressure oil rail to be communicated with simultaneously designs the high-pressure oil pipe assembly with the parallel mode of oil outlet that the high-pressure oil pipe high pressure oil rail is communicated with, these have not only made things convenient for the installation and design of high-pressure oil pipe assembly, and easy to maintenance, the tidiness height.Adopt high-pressure oil pipe to have identical length and avoid the pressure loss minimum of high pressure oil rail to oil nozzle, also make the equal in length of the high-pressure oil pipe on each cylinder of diesel engine, so that each oil sprayer of diesel engine has identical injection pressure, reduced the deviation of fuel injection quantity between each cylinder of diesel engine.
Claims (7)
1. use for diesel engine high-pressure oil pipe assembly, comprise and be communicated with each oil sprayer and the six roots of sensation high-pressure oil pipe that is positioned at oil sprayer below high pressure oil rail on the six-cylinder diesel engine, two pump rail high-pressure oil pipes that are communicated with oil pump and high pressure oil rail, it is characterized in that: after described high-pressure oil pipe extends upward a distance by high pressure oil rail, connect to body bending extension and each corresponding with two high-pressure oil pipes respectively oil sprayer after two high-pressure oil pipes that are positioned at described high pressure oil rail left end laterally extend left along diesel-engine body earlier, four high-pressure oil pipes that are positioned at described high pressure oil rail right-hand member laterally connect to body bending extension and each corresponding with four high-pressure oil pipes respectively oil sprayer after the bodies of diesel engine extend to the right earlier more again.
2. use for diesel engine high-pressure oil pipe assembly as claimed in claim 1 is characterized in that: described adjacent two high-pressure oil pipes are listed as one group during along the body horizontal expansion of diesel engine, and described respectively the group is respectively equipped with fixing clamp on the high-pressure oil pipe.
3. use for diesel engine high-pressure oil pipe assembly as claimed in claim 2 is characterized in that: described fixing clamp is respectively organized body horizontal expansion place of high-pressure oil pipe along diesel engine being provided with respectively.
4. use for diesel engine high-pressure oil pipe assembly as claimed in claim 1 is characterized in that: described two pump rail high-pressure oil pipes are arranged in parallel and are communicated with filler opening between two groups of high-pressure oil pipes of high pressure oil rail left end.
5. use for diesel engine high-pressure oil pipe assembly as claimed in claim 1 is characterized in that: described each high-pressure oil pipe extends upward and along diesel-engine body horizontal expansion planes overlapping.
6. use for diesel engine high-pressure oil pipe assembly as claimed in claim 1 is characterized in that: described pump rail high-pressure oil pipe is parallel with the oil outlet that the high-pressure oil pipe high pressure oil rail is communicated with the filler opening that high pressure oil rail is communicated with.
7. as each described use for diesel engine high-pressure oil pipe assembly in the claim 1 to 6, it is characterized in that: six roots of sensation high-pressure oil pipe has identical length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200244073U CN201057118Y (en) | 2007-06-25 | 2007-06-25 | High-pressure oil pipe assembly for diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200244073U CN201057118Y (en) | 2007-06-25 | 2007-06-25 | High-pressure oil pipe assembly for diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201057118Y true CN201057118Y (en) | 2008-05-07 |
Family
ID=39425960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200244073U Expired - Lifetime CN201057118Y (en) | 2007-06-25 | 2007-06-25 | High-pressure oil pipe assembly for diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201057118Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536567A (en) * | 2012-02-27 | 2012-07-04 | 潍柴动力股份有限公司 | High-pressure oil pipe device and multi-cylinder engine |
| CN105649837A (en) * | 2014-11-14 | 2016-06-08 | 山东龙口油管有限公司 | High-pressure oil pipe assembly of diesel engine |
-
2007
- 2007-06-25 CN CNU2007200244073U patent/CN201057118Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536567A (en) * | 2012-02-27 | 2012-07-04 | 潍柴动力股份有限公司 | High-pressure oil pipe device and multi-cylinder engine |
| CN105649837A (en) * | 2014-11-14 | 2016-06-08 | 山东龙口油管有限公司 | High-pressure oil pipe assembly of diesel engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080507 |
|
| CX01 | Expiry of patent term |