CN104514941A - High-pressure pipeline sealing device - Google Patents
High-pressure pipeline sealing device Download PDFInfo
- Publication number
- CN104514941A CN104514941A CN201410693394.3A CN201410693394A CN104514941A CN 104514941 A CN104514941 A CN 104514941A CN 201410693394 A CN201410693394 A CN 201410693394A CN 104514941 A CN104514941 A CN 104514941A
- Authority
- CN
- China
- Prior art keywords
- sealing
- cushion block
- steel ball
- high pressure
- pressure
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/004—Joints; Sealings
- F02M55/005—Joints; Sealings for high pressure conduits, e.g. connected to pump outlet or to injector inlet
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
- F02M55/025—Common rails
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Joints Allowing Movement (AREA)
Abstract
The invention provides a high-pressure pipeline sealing device, comprising a sealing steel ball, a compressing cushion block and a compressing nut; a high-pressure connector is provided with a sealing cone, the sealing steel ball is arranged on the sealing cone of a common rail pipe high-pressure connector, and an inward concave surface is arranged at the center of one end face of the compressing cushion block; the concave surface of the compressing cushion block comes into contact with the sealing steel ball, the compressing nut matches the threads of the high-pressure connector, so as to compress the compressing cushion block and the sealing steel ball on the sealing cone of the high-pressure connector. The device has the advantages and beneficial effects that: the sealing structure of the device is used for sealing the high-pressure connector of a common rail pipe in a high-pressure common rail system, the sealing effect is good, and high pressure can be borne; the device has a simple structure, and is convenient to make.
Description
Technical field
The invention belongs to diesel engine high-pressure co-rail systems technology field, especially relate to a kind of diesel engine high-pressure co-rail pipeline sealing device.
Background technique
Component in high pressure co-rail system belong to sophisticated design and manufacture field, and it is higher that its system bears pressure, and peak-peak pressure is greater than 250MPa.
In prior art, the design and manufacturing technology of high pressure co-rail system common rail pipe is also immature, in the initial period of some engine design, common rail pipe product of good performance need be adopted to carry out performance Optimum Experiment, at this moment sealing is needed with regard to having unnecessary high voltage interface, the sealing effect of existing sealed product is not fine, the limited pressure that can bear.
Summary of the invention
For the deficiencies in the prior art, the object of this invention is to provide a kind of pressure duct seal arrangement.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of pressure duct seal arrangement, comprises sealed steel ball, compresses cushion block and gland nut; Described high pressure joint arranges sealing cone, and described sealed steel ball is arranged on the sealing cone of common rail pipe high pressure joint setting, and an end face center of described compression cushion block is provided with a concave surface caved in; The concave surface of described compression cushion block contacts with sealed steel ball, the screw-thread fit of described gland nut and high pressure joint, compression cushion block and sealed steel ball is pressed on the sealing cone of high pressure joint.
One end face center of described compression cushion block is provided with the conical surface caved in.
The advantage that the present invention has and good effect are:
Sealing configuration of the present invention is used for the conical surface of common rail pipe high pressure joint in sealed high pressure common rail system, and good sealing effect, can bear high pressure; And structure is simple, easy to make.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is mounting point figure of the present invention.
In figure:
1-sealed steel ball 2-compresses cushion block 3-gland nut 4-common rail pipe 5-high pressure joint
Embodiment
Pressure duct seal arrangement of the present invention is used for sealing the sealing cone that common rail pipe 4 high pressure joint 5 is as shown in Figure 2 arranged.
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.
A kind of pressure duct seal arrangement, as shown in Figure 1, 2, comprise sealed steel ball 1, compress cushion block 2 and gland nut 3, described sealed steel ball 1 is arranged on the sealing cone of high pressure joint 5, one end face center of described compression cushion block 2 is provided with a concave surface caved in, the conical surface that the present invention is preferably caved in; The conical surface of described compression cushion block 2 contacts with sealed steel ball 1, the screw-thread fit of described gland nut 3 and high pressure joint 5, compression cushion block 2 and sealed steel ball 1 is pressed on the sealing cone of high pressure joint 5.
The diameter of described sealed steel ball 1, compress the cone angle of cushion block 2 and the worm structure of fastening nut 3 designs according to the design parameter of the sealing surface of the high pressure joint 5 of common rail pipe 4.
The embodiment of pressure duct seal arrangement of the present invention is as follows:
By inner for the high pressure joint 5 that sealed steel ball 1 and compression cushion block 2 load common rail pipe 4 successively, tightening gland nut 3 is pressed on the sealing cone of high pressure joint 5 of common rail pipe 4 by sealed steel ball 1 and compression cushion block 2, play the effect of sealing common rail pipe 4 internal high pressure fuel oil, sealing effect is good.
Above embodiments of the invention have been described in detail, but described content being only preferred embodiment of the present invention, can not being considered to for limiting practical range of the present invention.All equalizations done according to the present patent application scope change and improve, and all should still belong within patent covering scope of the present invention.
Claims (2)
1. a pressure duct seal arrangement, is characterized in that: comprise sealed steel ball (1), compress cushion block (2) and gland nut (3); (5) arrange sealing cone in described high pressure joint, described sealed steel ball (1) is arranged on the sealing cone of common rail pipe (4) high pressure joint (5), and an end face center of described compression cushion block (2) is provided with a concave surface caved in; The concave surface of described compression cushion block (2) contacts with sealed steel ball (1), the screw-thread fit of described gland nut (3) and high pressure joint (5), will compress cushion block (2) and sealed steel ball (1) is pressed on the sealing cone of high pressure joint (5).
2. pressure duct seal arrangement according to claim 1, is characterized in that: an end face center of described compression cushion block (2) is provided with the conical surface caved in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410693394.3A CN104514941A (en) | 2014-11-26 | 2014-11-26 | High-pressure pipeline sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410693394.3A CN104514941A (en) | 2014-11-26 | 2014-11-26 | High-pressure pipeline sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104514941A true CN104514941A (en) | 2015-04-15 |
Family
ID=52790649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410693394.3A Pending CN104514941A (en) | 2014-11-26 | 2014-11-26 | High-pressure pipeline sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104514941A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2350410A (en) * | 1999-04-13 | 2000-11-29 | Lucas France | Connector arrangement for a pipe with a part-spherical surface |
| JP2007056819A (en) * | 2005-08-26 | 2007-03-08 | Usui Kokusai Sangyo Kaisha Ltd | Method for sealing common rail |
| CN201152415Y (en) * | 2007-12-28 | 2008-11-19 | 中国航天科技集团公司第五研究院第五一〇研究所 | Embedded type cutting ferrule sealing structure |
| US20100194096A1 (en) * | 2009-02-04 | 2010-08-05 | Robert Bosch Gmbh | High pressure fuel fittings |
| CN202065574U (en) * | 2011-05-26 | 2011-12-07 | 郑州人造金刚石及制品工程技术研究中心有限公司 | High pressure joint |
| CN202203594U (en) * | 2011-08-31 | 2012-04-25 | 北汽福田汽车股份有限公司 | Pipe joint plugging device |
-
2014
- 2014-11-26 CN CN201410693394.3A patent/CN104514941A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2350410A (en) * | 1999-04-13 | 2000-11-29 | Lucas France | Connector arrangement for a pipe with a part-spherical surface |
| JP2007056819A (en) * | 2005-08-26 | 2007-03-08 | Usui Kokusai Sangyo Kaisha Ltd | Method for sealing common rail |
| CN201152415Y (en) * | 2007-12-28 | 2008-11-19 | 中国航天科技集团公司第五研究院第五一〇研究所 | Embedded type cutting ferrule sealing structure |
| US20100194096A1 (en) * | 2009-02-04 | 2010-08-05 | Robert Bosch Gmbh | High pressure fuel fittings |
| CN202065574U (en) * | 2011-05-26 | 2011-12-07 | 郑州人造金刚石及制品工程技术研究中心有限公司 | High pressure joint |
| CN202203594U (en) * | 2011-08-31 | 2012-04-25 | 北汽福田汽车股份有限公司 | Pipe joint plugging device |
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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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150415 |