CN206000657U - A kind of fuel injector connecting assembly - Google Patents
A kind of fuel injector connecting assembly Download PDFInfo
- Publication number
- CN206000657U CN206000657U CN201620994409.4U CN201620994409U CN206000657U CN 206000657 U CN206000657 U CN 206000657U CN 201620994409 U CN201620994409 U CN 201620994409U CN 206000657 U CN206000657 U CN 206000657U
- Authority
- CN
- China
- Prior art keywords
- fuel injector
- oil pipe
- interface
- pressure oil
- connecting assembly
- 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 - Fee Related
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- Fuel-Injection Apparatus (AREA)
Abstract
The utility model discloses a kind of fuel injector connecting assembly, including fuel injector and high-pressure oil pipe, the fuel injector interface of fuel injector is fixedly connected with the high-pressure oil pipe interface of high-pressure oil pipe, and wherein, fuel injector interface is located at the top of fuel injector.Fuel injector interface is placed in fuel injector top, high-pressure oil pipe interface is fixedly connected with fuel injector interface, during installation, even if fuel injector turns an angle, do not interfere with the connection of high-pressure oil pipe interface and fuel injector interface yet, the stress of high-pressure oil pipe interface can be reduced, reduce engine operation process mesohigh fuel leakage risk.
Description
Technical field
This utility model is related to fuel injector field, more particularly, to a kind of fuel injector connecting assembly.
Background technology
Diesel engines at present commonly uses high pressure co-rail system, and fuel-injection pressure is high.High-pressure oil pipe is as connection fuel injector
With the part of high pressure oil rail, poorly sealed in any installation process, high pressure fuel leak can be led to, cause electromotor work not
Normally, or even on fire.As shown in figure 1, most of diesel engine is all using first installation fuel injector 1 ＇ and high pressure oil rail 3 ＇, Ran Houan
Dress high-pressure oil pipe 2 ＇, fuel injector interface 11 ＇ are located at the side of fuel injector 1 ＇, and high-pressure oil pipe 2 ＇ connects fuel injector 1 ＇ and high pressure oil rail
3 ＇.Because high-pressure oil pipe 2 ＇ is generally steel pipe, rigidity is larger, leads to fuel injector 1 ＇ it is impossible to be accurately positioned in installation process, spray
Oily device 1 ＇, along after axis rotation, can lead to fuel injector interface 11 ＇ and high-pressure oil pipe interface 21 ＇ position angle of arrival deviation, make height
There is stress in the seam of pressuring oil pipe 2 ＇ and fuel injector 1 ＇, cause poorly sealed, there is engine operation process mesohigh fuel oil
Risk of leakage.
Utility model content
The purpose of this utility model is to provide a kind of fuel injector connecting assembly, and the top of fuel injector is provided with fuel injector and connects
Mouthful, it is attached with high-pressure oil pipe interface, solve the side that conventional fuel injector interface is located at fuel injector, after fuel injector rotation,
Lead to there is stress problem with high-pressure oil pipe interface, improve the reliability of connection, reduce the risk that junction fuel oil is revealed.
A kind of fuel injector connecting assembly, including fuel injector and high-pressure oil pipe, the fuel injector interface of fuel injector and high-pressure oil pipe
High-pressure oil pipe interface be fixedly connected, wherein, fuel injector interface be located at fuel injector top.
Preferably, fuel injector interface is coaxial with fuel injector.
Preferably, fuel injector interface is cylindric, and outside is provided with external screw thread.
Preferably, the inside of fuel injector interface is funnel-form.
Preferably, high-pressure oil pipe interface is provided with oil pipe nut, and oil pipe nut is rotated with high-pressure oil pipe and is connected；
The inside of oil pipe nut is provided with female thread.
Preferably, the top of high-pressure oil pipe interface is provided with the annular boss abutting with oil pipe nut.
Preferably, ring dress boss and high-pressure oil pipe interface pass through arc transition.
The beneficial effects of the utility model are：
A kind of fuel injector connecting assembly that this utility model provides, fuel injector interface is located at the top of fuel injector, by high pressure
Tubing interface is fixedly connected with fuel injector interface, during installation, even if fuel injector turns an angle, does not also interfere with high pressure
Tubing interface and the connection of fuel injector interface, can reduce the stress of high-pressure oil pipe interface, reduce engine operation process mesohigh
The risk of fuel leakage.
Brief description
Fig. 1 is the structural representation of fuel injector connecting assembly in prior art；
The structural representation of the fuel injector connecting assembly that Fig. 2 provides for this utility model；
The top view of the fuel injector connecting assembly that Fig. 3 provides for this utility model；
The explosive view of the fuel injector connecting assembly that Fig. 4 provides for this utility model；
The structural representation of the fuel injector interface that Fig. 5 provides for this utility model；
The structural representation of the high-pressure oil pipe interface that Fig. 6 provides for this utility model.
Reference is as follows：
1 ＇-fuel injector, 11 ＇-fuel injector interface, 2 ＇-high-pressure oil pipe, 21 ＇-high-pressure oil pipe interface, 3 ＇-high pressure oil rail, 1-
Fuel injector, 11- fuel injector interface, 2- high-pressure oil pipe, 21- high-pressure oil pipe interface, 22- annular boss, 3- oil pipe nut.
Specific embodiment
Embodiment of the present utility model is described below in detail, the example of embodiment is shown in the drawings, wherein from start to finish
The element that same or similar label represents same or similar element or has same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining this utility model, and can not be construed to restriction of the present utility model.
As shown in Figures 2 to 6, this utility model provides a kind of fuel injector connecting assembly, including fuel injector 1 and high-pressure oil pipe
2, the fuel injector interface 11 of fuel injector 1 is fixedly connected with the high-pressure oil pipe interface 21 of high-pressure oil pipe 2, wherein, fuel injector interface 11
Top positioned at fuel injector 1.Fuel injector interface 11 be located at fuel injector 1 top, compared to existing technology in fuel injector interface 11 ＇ is put
In the side of fuel injector 1 ＇, when fuel injector rotates, do not interfere with and install with high-pressure oil pipe, reduce the stress of seam,
The problem avoiding occurring high-pressure oil pipe to reveal.
Further, fuel injector interface 11 is coaxial with fuel injector 1, can refer to shown in Fig. 2, and fuel injector interface 11 is arranged on
The top center of fuel injector 1 is not it is ensured that when fuel injector 1 rotates, interfere with the installation of fuel injector interface 11
Position is it is ensured that the reliability that is connected with high-pressure oil pipe interface 21 of fuel injector interface 11, and convenient installs.
As shown in figure 4, the shape of fuel injector interface 11 can have many kinds it is preferable that fuel injector interface 11 is cylindric,
Outside is provided with external screw thread.External screw thread outside columned fuel injector interface 11 can facilitate and coordinates with high-pressure oil pipe interface 21, lead to
Cross rotation can complete to be fixedly connected, facilitate repair demolition simultaneously, and the threaded gas that can improve interface connection further
Close property, reduces high-pressure oil pipe disclosure risk.
Further, the inside of fuel injector interface 11 is funnel-form.As described in Figure 5, funnelform fuel injector interface 11 bottom
Portion's diameter is less, can lift injection pressure, increased fuel injector interface 11 and the contact area of high-pressure oil pipe interface 21 simultaneously,
Preferably, lifting further reduces high-pressure oil pipe disclosure risk to sealing.
As shown in figure 4, further, high-pressure oil pipe interface 21 is provided with oil pipe nut 3, oil pipe nut 3 and 2 turns of high-pressure oil pipe
It is dynamically connected；The inside of oil pipe nut 3 is provided with female thread.Oil pipe nut 3 one end connects high-pressure oil pipe 2, can revolve along high-pressure oil pipe 2
Turn, the external screw thread of the screw-internal thread fit fuel injector interface 11 of oil pipe nut 3, by rotation pipeline nut 3, fuel injector can be connected
1 and high-pressure oil pipe 2, it is easy for installation and removal.
Further, the top of high-pressure oil pipe interface 21 is provided with the annular boss 22 abutting with oil pipe nut 3, can refer to figure
Shown in 6, annular boss 22 can block oil pipe nut 3, departs from high-pressure oil pipe 2 with preventing oil pipe nut 3.During installation, need to pre-install
Oil pipe nut 3, then reprocesses annular boss 22, high-pressure oil pipe 2 and oil pipe nut 3 is formed a total member and is used,
Facilitate human users.
Further, annular boss 22 and high-pressure oil pipe interface 21 pass through arc transition, can refer to shown in Fig. 6, hydraulic oil
Spheroidal at interface tube 21, is coordinated with funnelform fuel injector interface 11, by increasing contact area, improves air-tightness,
Lifting reduces high-pressure oil pipe disclosure risk further.
Of the present utility model construction, feature and action effect are described in detail according to the embodiment shown in schema above, with
Upper be only preferred embodiment of the present utility model, but this utility model is to limit practical range shown in drawing, every according to this
The change that the conception of utility model is made, or it is revised as the Equivalent embodiments of equivalent variations, still without departing from description and diagram institute
Cover spiritual when, all should be in protection domain of the present utility model.
Claims (7)
1. a kind of fuel injector connecting assembly, including fuel injector and high-pressure oil pipe, the fuel injector interface of described fuel injector and described height
The high-pressure oil pipe interface of pressuring oil pipe be fixedly connected it is characterised in that：
Described fuel injector interface is located at the top of described fuel injector.
2. fuel injector connecting assembly according to claim 1 is it is characterised in that described fuel injector interface and described fuel injector
Coaxially.
3. fuel injector connecting assembly according to claim 2 is it is characterised in that described fuel injector interface is cylindric, outward
Portion is provided with external screw thread.
4. fuel injector connecting assembly according to claim 3 is it is characterised in that the inside of described fuel injector interface is funnel
Shape.
5. fuel injector connecting assembly according to claim 4 is it is characterised in that described high-pressure oil pipe interface is provided with oil pipe spiral shell
Mother, described oil pipe nut is rotated with described high-pressure oil pipe and is connected；
The inside of described oil pipe nut is provided with female thread.
6. fuel injector connecting assembly according to claim 5 is it is characterised in that the top of described high-pressure oil pipe interface is provided with
The annular boss abutting with described oil pipe nut.
7. fuel injector connecting assembly according to claim 6 is it is characterised in that described annular boss and described high-pressure oil pipe
Interface passes through arc transition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620994409.4U CN206000657U (en) | 2016-08-29 | 2016-08-29 | A kind of fuel injector connecting assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620994409.4U CN206000657U (en) | 2016-08-29 | 2016-08-29 | A kind of fuel injector connecting assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206000657U true CN206000657U (en) | 2017-03-08 |
Family
ID=58195990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620994409.4U Expired - Fee Related CN206000657U (en) | 2016-08-29 | 2016-08-29 | A kind of fuel injector connecting assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206000657U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112031971A (en) * | 2020-08-14 | 2020-12-04 | 东风商用车有限公司 | High-pressure oil pipe assembly |
-
2016
- 2016-08-29 CN CN201620994409.4U patent/CN206000657U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112031971A (en) * | 2020-08-14 | 2020-12-04 | 东风商用车有限公司 | High-pressure oil pipe assembly |
| CN112031971B (en) * | 2020-08-14 | 2022-02-18 | 东风商用车有限公司 | High-pressure oil pipe assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170308 Termination date: 20190829 |