CN2903445Y - Diesel engine oil return pipe apparatus - Google Patents
Diesel engine oil return pipe apparatus Download PDFInfo
- Publication number
- CN2903445Y CN2903445Y CN 200620080682 CN200620080682U CN2903445Y CN 2903445 Y CN2903445 Y CN 2903445Y CN 200620080682 CN200620080682 CN 200620080682 CN 200620080682 U CN200620080682 U CN 200620080682U CN 2903445 Y CN2903445 Y CN 2903445Y
- Authority
- CN
- China
- Prior art keywords
- oil return
- pipe
- return
- diesel engine
- return tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Fuel-Injection Apparatus (AREA)
Abstract
The utility model discloses an oil return line device for the diesel, comprising an oil return line main duct, wherein the oil return line main duct is piped with a plurality of oil return short lines corresponding to the oil return mouth of the fuel injector. The oil return line main duct is also piped with the oil return mouth of the common-rail pipe of the diesel and the oil return mouth of the high-pressure common-rail fuel pump of the diesel. A pipe connecting interface between the oil return line main duct and the fuel tank is arranged at the rear of the oil return line main duct. A oil return line main duct makes all of the oil return mouths series connected, thereby making the placement of the diesel pipe-lines concise and attractive, facilitating manufacture and installation, and reducing the manufacture cost.
Description
Technical field
The utility model relates to a kind of return line of diesel engine.
Background technique
Country is more and more stricter to the requirement of Abgasgesetz at present, in order to reach Europe III Abgasgesetz, Weihe River bavin research and development new product WP10, WP12 Electrocontrolled high-pressure common rail Europe III diesel engine, owing to be that the original return tube of new product is the requirement that all can't satisfy existing Electrocontrolled high-pressure common rail system on structure or function, need to research and develop a kind of return flow oil pipe of new structure for this reason.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of fuel oil that refluxes in oil sprayer and the common rail pipe that makes and is gathered together, and flows back to the diesel engine return tube device of fuel tank with the oil return of high-pressure common rail oil pump.
For achieving the above object, the technical solution of the utility model is: diesel engine return tube device, comprise the return tube person in charge, described return tube is responsible for and is gone up the some oil return short tubes corresponding with the oil sprayer return opening of pipe connection, described return tube is responsible for and also is connected with the return opening pipe of common rail for diesel engine pipe, described return tube is responsible for and also is connected with the return opening pipe of diesel engine high-pressure co-rail oil pump, and the tail end that return tube is responsible for has the interface that is connected with the fuel tank pipe.
As a kind of improvement, described return tube device also is provided with and some the return tube device is fixed on pipe clamp on the diesel engine.
Owing to adopt technique scheme, diesel engine return tube device, comprise the return tube person in charge, described return tube is responsible for and is gone up the some oil return short tubes corresponding with the oil sprayer return opening of pipe connection, described return tube is responsible for and also is connected with the return opening pipe of common rail for diesel engine pipe, described return tube is responsible for and also is connected with the return opening pipe of diesel engine high-pressure co-rail oil pump, and the tail end that return tube is responsible for has the interface that is connected with the fuel tank pipe; By a return tube person in charge all return openings are serially connected, make that the line arrangement of diesel engine is succinctly attractive in appearance, be convenient to make and install, reduced cost of production.
Description of drawings
Accompanying drawing is the utility model embodiment's a structural representation.
Embodiment
As shown in drawings, diesel engine return tube device, comprise the return tube person in charge 6, described return tube is responsible for the some oil return short tubes 5 corresponding with the oil sprayer return opening of pipe connection on 6, described return tube is responsible for 6 and also is connected with the return opening pipe of common rail for diesel engine pipe, described return tube is responsible for 6 and also is connected with return opening 7 pipes of diesel engine high-pressure co-rail oil pump, and the return tube person in charge 6 tail end has the interface that is connected with the fuel tank pipe.Described return tube device also is provided with and some the return tube device is fixed on pipe clamp 4 on the diesel engine, is used for the utility model fixing on diesel engine.
Oil sprayer back leakage connection 1 is fixed on the cylinder head and with the oil sprayer drainback passage by mistake whelk nail and is communicated with, oil sprayer back leakage connection 1 is responsible for 6 by oil return short tube 5 and t-joint 3 with return tube and is connected, common rail pipe offloading joint 2 is fixed on the common rail pipe pressure-limit valve by crossing the whelk nail, and being responsible for 6 by t-joint 3 and return tube is communicated with, the oil return of the return tube person in charge and high pressure oil pump connects together and takes back fuel tank, and whole return flow oil pipe is fixed on the cylinder head by 6 pipe clamps.
Working procedure of the present utility model is as follows: the oil return of oil sprayer is through the drainback passage in the cylinder head and cross the whelk nail and converge to back leakage connection 1, and be responsible in 6 at return tube through oil return short tube 5 and t-joint 3 and converge to together, and the fuel oil that unloads stream this moment in the common rail pipe also converges in the return tube person in charge 6 together through the oil return of threeway and oil sprayer, and fuel tank is flowed back in oil return last and the high-pressure common rail oil pump together.
Claims (2)
1. diesel engine return tube device, comprise the return tube person in charge (6), it is characterized in that: described return tube is responsible for (6) and is gone up the some oil return short tubes (5) corresponding with the oil sprayer return opening of pipe connection, described return tube is responsible for (6) and also is connected with the return opening pipe of common rail for diesel engine pipe, described return tube is responsible for (6) and also is connected with the return opening pipe of diesel engine high-pressure co-rail oil pump, and the tail end that return tube is responsible for (6) has the interface that is connected with the fuel tank pipe.
2. diesel engine return tube device as claimed in claim 1 is characterized in that: described return tube device also is provided with and some the return tube device is fixed on pipe clamp (4) on the diesel engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620080682 CN2903445Y (en) | 2006-01-24 | 2006-01-24 | Diesel engine oil return pipe apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620080682 CN2903445Y (en) | 2006-01-24 | 2006-01-24 | Diesel engine oil return pipe apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2903445Y true CN2903445Y (en) | 2007-05-23 |
Family
ID=38078855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620080682 Expired - Lifetime CN2903445Y (en) | 2006-01-24 | 2006-01-24 | Diesel engine oil return pipe apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2903445Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234882A (en) * | 2014-08-21 | 2014-12-24 | 内蒙古欧意德发动机有限公司 | Oil return pipe assembly |
| CN106677943A (en) * | 2016-11-30 | 2017-05-17 | 广西玉柴机器股份有限公司 | High-position oil return pipeline |
-
2006
- 2006-01-24 CN CN 200620080682 patent/CN2903445Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234882A (en) * | 2014-08-21 | 2014-12-24 | 内蒙古欧意德发动机有限公司 | Oil return pipe assembly |
| CN106677943A (en) * | 2016-11-30 | 2017-05-17 | 广西玉柴机器股份有限公司 | High-position oil return pipeline |
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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: 20070523 |
|
| EXPY | Termination of patent right or utility model |