CN202417767U - Four-way pipe joint for diesel return of diesel engine - Google Patents

Four-way pipe joint for diesel return of diesel engine Download PDF

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Publication number
CN202417767U
CN202417767U CN2012200249186U CN201220024918U CN202417767U CN 202417767 U CN202417767 U CN 202417767U CN 2012200249186 U CN2012200249186 U CN 2012200249186U CN 201220024918 U CN201220024918 U CN 201220024918U CN 202417767 U CN202417767 U CN 202417767U
Authority
CN
China
Prior art keywords
return
connecting tube
diesel
diesel engine
pipe
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
Application number
CN2012200249186U
Other languages
Chinese (zh)
Inventor
李奇骅
陈利仙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Zhongqi Group Hangzhou Engine Co.,Ltd
Original Assignee
China National Heavy Duty Truck Group Jinan Power Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China National Heavy Duty Truck Group Jinan Power Co Ltd filed Critical China National Heavy Duty Truck Group Jinan Power Co Ltd
Priority to CN2012200249186U priority Critical patent/CN202417767U/en
Application granted granted Critical
Publication of CN202417767U publication Critical patent/CN202417767U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model provides a four-way pipe joint for the diesel return of a diesel engine, which comprises a central joint. The central joint is provided with three connection pipes including a first connection pipe, a second connection pipe and a third connection pipe, and the three connection pipes are communicated with the central joint; and the first connection pipe is shaped like a cylinder and connected with a hard high-pressure oil rail oil return pipe. The four-way pipe joint is convenient to install, change and maintain, has high reliability, is not easy to leak oil, can deliver and return oil effectively to improve work efficiency and overcomes the defect of soft and hard pipe installation in the prior art.

Description

Union cross is used in the diesel engine oil return
Technical field
The utility model relates to a kind of diesel engine oil return and uses union cross, and union cross is used in the oil return that particularly relates to the high pressure co-rail diesel machine.
Background technique
Adopt the Electrocontrolled high-pressure common rail system to improve the spraying quality fuel injection characteristic comparatively desirable of diesel engine, become development of diesel trend from now on realization.In common rail system, high pressure oil rail, oil sprayer, Injection Pump all need oil return; If separately oil return, then operation is numerous and diverse.When concentrating oil return, take into account the difference of flexible pipe and hard tube in the return tube again, attended operation is inconvenient, flexible pipe is installed, the hard tube assembly process is complicated, the reduction working efficiency.
Summary of the invention
The utility model provides a kind of diesel engine fuel injecting oil return to use union cross in order to overcome the difficult problem of above technology.
The utility model adopts following technological scheme: it comprises center sub, three connecting tubes that communicate with it is installed on center sub is respectively: first connecting tube, second connecting tube, the 3rd connecting tube.
Said first connecting tube is cylindric, is connected with high pressure oil rail return tube hard tube.
Said second connecting tube is the ring shape, is connected with oil sprayer oil return flexible pipe.
On said the 3rd connecting tube annular groove is set, can fixing hoop, link to each other with engine fuel oil return flexible pipe through clip.
The utility model is easy for installation, and reliability is high, is difficult for leakage phenomenon takes place, and is convenient for changing and keeps in repair, and effectively carries and refluxes, and increases work efficiency, and overcomes the drawback that existing technology soft or hard pipe is installed.
Description of drawings
Fig. 1 is the utility model plan view.
Fig. 2 is the utility model A-A sectional drawing.
Fig. 3 is the utility model B-B sectional drawing.
Fig. 4 is the utility model stereogram.
Fig. 5 installs back assembly view by the utility model.
Label is among the figure: 1, first connecting tube, 2, second connecting tube, the 3, the 3rd connecting tube, 4, center sub, 5, the high pressure oil rail return tube, 6, the oil sprayer return tube.
Embodiment
Comprise center sub 4 among the figure, three connecting tubes that communicate with it are installed on center sub 4 are respectively: first connecting tube 1, second connecting tube 2, the 3rd connecting tube 3.First connecting tube 1 is cylindric, is connected fixing with hard tube.Second connecting tube 2 is the ring shape, is connected with flexible pipe.On said the 3rd connecting tube 3 annular groove is set, can fixing hoop.Said center sub 4 is connected fixing with the jerk pump oil outlet through hollow bolt.As shown in Figure 5; In the installation process: with diesel engine high-pressure oil rail return tube 5 insert first connecting tube 1, diesel injector return tube 6 is enclosed within second connecting tube, 2 outward edges; Be combined into a diesel engine return tube assembly; Center sub 4 is installed two Composition spacer sealings up and down, is connected through hollow bolt above-mentioned assembly with the jerk pump oil outlet and fixes, and the oil return of high pressure oil rail, oil sprayer, Injection Pump is soon concentrated and carried the fuel tank that strile-backs through the 3rd connecting tube 3.The utility model does not detail part and is known technology, and common variation that those skilled in the art carries out in the utility model technological scheme scope or replacement all should be included in the protection domain of the utility model.

Claims (4)

1. union cross is used in the diesel engine oil return, comprises center sub (4), it is characterized in that: center sub (4) is gone up three connecting tubes that communicate with it of installation and is respectively: first connecting tube (1), second connecting tube (2), the 3rd connecting tube (3).
2. union cross is used in diesel engine oil return according to claim 1, it is characterized in that: said: first connecting tube (1) is connected fixing with hard tube, adopt cylindric.
3. union cross is used in diesel engine oil return according to claim 1, it is characterized in that: said: second connecting tube (2) is connected with flexible pipe, and structure is the ring shape.
4. union cross is used in diesel engine oil return according to claim 1, it is characterized in that: on said the 3rd connecting tube (3) annular groove is set.
CN2012200249186U 2012-01-19 2012-01-19 Four-way pipe joint for diesel return of diesel engine Expired - Lifetime CN202417767U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012200249186U CN202417767U (en) 2012-01-19 2012-01-19 Four-way pipe joint for diesel return of diesel engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012200249186U CN202417767U (en) 2012-01-19 2012-01-19 Four-way pipe joint for diesel return of diesel engine

Publications (1)

Publication Number Publication Date
CN202417767U true CN202417767U (en) 2012-09-05

Family

ID=46742538

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012200249186U Expired - Lifetime CN202417767U (en) 2012-01-19 2012-01-19 Four-way pipe joint for diesel return of diesel engine

Country Status (1)

Country Link
CN (1) CN202417767U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103573513A (en) * 2013-10-12 2014-02-12 广西玉柴机器股份有限公司 Fuel oil scavenger

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103573513A (en) * 2013-10-12 2014-02-12 广西玉柴机器股份有限公司 Fuel oil scavenger

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: CHINA ZHONGQI GROUP HANGZHOU ENGINE CO.,LTD

Free format text: FORMER OWNER: CHINA NATIONAL HEAVY DUTY TRUCK GROUP JINAN POWER CO., LTD.

Effective date: 20140512

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 250002 JINAN, SHANDONG PROVINCE TO: 311200 HANGZHOU, ZHEJIANG PROVINCE

TR01 Transfer of patent right

Effective date of registration: 20140512

Address after: 311200 red six farm south road, Xiaoshan District, Zhejiang, Hangzhou

Patentee after: China Zhongqi Group Hangzhou Engine Co.,Ltd

Address before: 250002 Ji'nan, central city, Shandong hero hill road, No. 165

Patentee before: China National Heavy Duty Truck Group Jinan Power Co., Ltd.

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20120905