CN102374082A - Low-pressure oil pipe assembly of diesel engine - Google Patents
Low-pressure oil pipe assembly of diesel engine Download PDFInfo
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- CN102374082A CN102374082A CN2011103002039A CN201110300203A CN102374082A CN 102374082 A CN102374082 A CN 102374082A CN 2011103002039 A CN2011103002039 A CN 2011103002039A CN 201110300203 A CN201110300203 A CN 201110300203A CN 102374082 A CN102374082 A CN 102374082A
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- oil pipe
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- pipe assembly
- pressure oil
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Abstract
The invention relates to a diesel engine accessory, in particular to a low-pressure oil pipe assembly of a diesel engine. The low-pressure oil pipe assembly comprises an oil pipe body, wherein the oil pipe body comprises a spherical pipe section, a jacket nut and an intermediate joint; the end part of the oil pipe body is formed in a depressed way, and the outer side of the depressed part is provided with the spherical pipe section; the intermediate joint is also arranged at the depressed part; and the jacket nut is arranged between the spherical pipe section and the intermediate joint. After the structure is adopted, the low-pressure oil pipe assembly is more closely connected with a fuel pump and a fuel nozzle due to the use of the spherical pipe section, the jacket nut and the intermediate joint, and therefore the sealing property is more excellent. Meanwhile, because surfaces of the oil pipe body, the spherical pipe section, the jacket nut and the intermediate joint are galvanized, the low-pressure oil pipe assembly is firmer and more durable.
Description
Technical field
The present invention relates to a kind of diesel engine part, particularly a kind of diesel low-voltage oil pipe assembly.
Background technique
Diesel low-voltage oil pipe assembly is a kind of important oil pipe fitting in the diesel engine, is fuel pump is carried low pressure line pipeline from fuel oil to fuel nozzle.When diesel engine was worked, low-voltage fuel pipe assembly was bearing the heavy impulsive load of fuel oil and the additional load that diesel vibration is produced.Therefore, the high pressure sealing junction plane that links to each other with fuel pump, fuel nozzle of low-voltage fuel pipe assembly must have enough compressive strengths and locking, antivibration, leakage-preventing ability.
Summary of the invention
The technical issues that need to address of the present invention provide a kind of good airproof performance and robust diesel low-voltage oil pipe assembly.
For solving above-mentioned technical problem, diesel low-voltage oil pipe assembly of the present invention comprises the oil pipe body, also comprises spherical tube coupling, cap nut and transition joint; The depression moulding of said oil pipe body end, said recess arranged outside has spherical tube coupling; Said recess also is provided with transition joint; Be provided with cap nut between said spherical tube coupling and the transition joint.
Said oil pipe body, spherical tube coupling, cap nut and transition joint surface are all zinc-plated.
After adopting said structure, said spherical tube coupling, cap nut and transition joint make the low pressure fuel pipe assembly more tight with being connected of fuel pump, fuel nozzle, and sealability is more superior.Simultaneously, because oil pipe body, spherical tube coupling, cap nut and transition joint surface are all zinc-plated, make the low pressure fuel pipe assembly more sturdy and durable.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is done further detailed explanation.
Fig. 1 is the sectional view of diesel low-voltage oil pipe assembly of the present invention.
Among the figure: 1 is the oil pipe body, and 2 is spherical tube coupling, and 3 are transition joint, and 4 is cap nut
Embodiment
Diesel low-voltage oil pipe assembly as shown in Figure 1 comprises oil pipe body 1, also comprises spherical tube coupling 2, cap nut 4 and transition joint 3; The depression moulding of said oil pipe body 1 end, said recess arranged outside has spherical tube coupling 2; Said recess also is provided with transition joint 3; Be provided with cap nut 4 between said spherical tube coupling 2 and the transition joint 3.The combination of said spherical tube coupling 2, transition joint 3 and cap nut 4 makes that whole diesel low-voltage oil pipe assembly is more tight with being connected of fuel pump, fuel nozzle, and sealability is more superior.
Said oil pipe body 1, spherical tube coupling 2, cap nut 4 and transition joint 2 surfaces are all zinc-plated, make that like this diesel low-voltage oil pipe assembly is more sturdy and durable.
Said diesel low-voltage oil pipe assembly should carry out pressure test, and test pressure is 2 times of working pressure, but minimum pressure is not less than 0.4Mpa, and the endurance is no less than 30s, seepage must not be arranged, break and the permanent deformation phenomenon.
Certainly, other protective layer also can be plated in oil pipe pipe fitting 1, spherical tube coupling 2, cap nut 4 and transition joint 2 surfaces, and such conversion all drops within the scope of the present invention's protection.
Claims (2)
1. a diesel low-voltage oil pipe assembly comprises the oil pipe body, it is characterized in that: also comprise spherical tube coupling, cap nut and transition joint; The depression moulding of said oil pipe body end, said recess arranged outside has spherical tube coupling; Said recess also is provided with transition joint; Be provided with cap nut between said spherical tube coupling and the transition joint.
2. according to the described diesel low-voltage oil pipe of claim 1 assembly, it is characterized in that: said oil pipe body, spherical tube coupling, cap nut and transition joint surface are all zinc-plated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103002039A CN102374082A (en) | 2011-09-28 | 2011-09-28 | Low-pressure oil pipe assembly of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103002039A CN102374082A (en) | 2011-09-28 | 2011-09-28 | Low-pressure oil pipe assembly of diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102374082A true CN102374082A (en) | 2012-03-14 |
Family
ID=45793175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103002039A Pending CN102374082A (en) | 2011-09-28 | 2011-09-28 | Low-pressure oil pipe assembly of diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102374082A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19938399A1 (en) * | 1999-08-13 | 2001-03-15 | Pfluger Thomas | Device for attaching a pipe to a radiator in a heating system comprises sealing ring and press ring fitted over pipe which is deformed by nut when it is tightened to seal joint |
| CN2466476Y (en) * | 2000-11-09 | 2001-12-19 | 上海欣昌减震器有限公司 | Ball joint of fastening-pressing type |
| JP2006258219A (en) * | 2005-03-18 | 2006-09-28 | Inaba Denki Sangyo Co Ltd | Pipe joint |
| CN101395420A (en) * | 2006-03-10 | 2009-03-25 | 大金工业株式会社 | Pipe fitting |
| CN201218371Y (en) * | 2008-05-13 | 2009-04-08 | 王俊忠 | Seal fitting assembly for automobile chassis |
| CN101809350A (en) * | 2007-07-27 | 2010-08-18 | 斯瓦戈洛克公司 | Tapered nut for tube or pipe fitting |
| CN202250507U (en) * | 2011-09-28 | 2012-05-30 | 常州常瑞天力动力机械有限公司 | Low-pressure oil pipe assembly for diesel engine |
-
2011
- 2011-09-28 CN CN2011103002039A patent/CN102374082A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19938399A1 (en) * | 1999-08-13 | 2001-03-15 | Pfluger Thomas | Device for attaching a pipe to a radiator in a heating system comprises sealing ring and press ring fitted over pipe which is deformed by nut when it is tightened to seal joint |
| CN2466476Y (en) * | 2000-11-09 | 2001-12-19 | 上海欣昌减震器有限公司 | Ball joint of fastening-pressing type |
| JP2006258219A (en) * | 2005-03-18 | 2006-09-28 | Inaba Denki Sangyo Co Ltd | Pipe joint |
| CN101395420A (en) * | 2006-03-10 | 2009-03-25 | 大金工业株式会社 | Pipe fitting |
| CN101809350A (en) * | 2007-07-27 | 2010-08-18 | 斯瓦戈洛克公司 | Tapered nut for tube or pipe fitting |
| CN201218371Y (en) * | 2008-05-13 | 2009-04-08 | 王俊忠 | Seal fitting assembly for automobile chassis |
| CN202250507U (en) * | 2011-09-28 | 2012-05-30 | 常州常瑞天力动力机械有限公司 | Low-pressure oil pipe assembly for diesel engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120314 |