CN209354284U - A kind of fuel injector installation positioning tool - Google Patents
A kind of fuel injector installation positioning tool Download PDFInfo
- Publication number
- CN209354284U CN209354284U CN201821865188.6U CN201821865188U CN209354284U CN 209354284 U CN209354284 U CN 209354284U CN 201821865188 U CN201821865188 U CN 201821865188U CN 209354284 U CN209354284 U CN 209354284U
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- China
- Prior art keywords
- fuel injector
- positioning
- positioning tool
- internal thread
- thread segment
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Abstract
A kind of fuel injector installation positioning tool, including sequentially connected mounting flange (1), positioning section (2), linkage section (3) and internal thread segment (4), the internal thread segment (4) is matched with fuel injector (5) fuel inlet fitting, and the positioning section (2) is matched with cylinder cap long nut mounting hole (6).Engine fuel injector (5) circumferential effective position is realized, to effectively reduce later period I& M disassembly process intermediate fuel oil leakage problem.
Description
Technical field
The utility model relates to a kind of installation positioning tool, more specifically to a kind of fuel injector installs positioning tool,
Belong to engine and related system technical field.
Background technique
Fuel injector is the core component in large diesel engine super-pressure fuel system, when fuel injector is installed at present, circumferential direction
Position is determined with the feeling of employee and previous assembly experience entirely, to will cause the micro rotation of fuel injector circumferential position, finally
It is not able to satisfy standard requirements.The phenomenon that so as to cause will appear high-pressure oil pipe and fuel injector assembly seal failure；Vehicle is long-term
Use process in, just will appear high-pressure oil pipe diesel oil leakage, ultimately cause baked wheaten cake vehicle, greatly influence vehicle product quality.
A kind of Chinese invention patent application " fuel injector for internal combustion engines locating sleeve structure " (application number: 201610820737.7, public
The number of opening: CN106286059A) a kind of fuel injector for internal combustion engines locating sleeve structure is disclosed, including the cylindrical positioning with ring flange
Sleeve, locking nut and fixing bolt, there are fuel injector nozzle outlet, the other end is to open for one end of the cylindrical positioning sleeve cylinder
Mouthful, and the uniformly distributed several threaded body protrusions along cylinder axial direction in open end, the section of the threaded body protrusion is in back taper, the spiral shell
The outside of line body protrusion is equipped with screw thread；The internal screw thread of the locking nut and the screw thread of the cylindrical positioning sleeve cylinder match；
The fixing bolt is used to that locating sleeve structure is fixed on cylinder cap by the through-hole on the ring flange of cylindrical positioning sleeve cylinder.It should
Application for a patent for invention structure is simple, can realize installation of the fuel injector on cylinder cap in the case where occupying little space.
But the application for a patent for invention has the disadvantage that spaces compact on 1, cylinder cap, can not design reasonable positioning tool；2, should
Accessory is positioned firstly the need of self-positioning, cylinder cap upper end can not provide positioning datum.
Summary of the invention
The purpose of this utility model is that being provided for above-mentioned technical problem existing for existing fuel injector locating sleeve structure
A kind of fuel injector installation positioning tool.
To achieve the above object, the technical solution of the utility model is: a kind of fuel injector installation positioning tool, including
Sequentially connected mounting flange, positioning section, linkage section and internal thread segment, the internal thread segment and fuel injector fuel inlet fitting match
It closes, the positioning section is matched with cylinder cap long nut mounting hole.
Compared with prior art, the beneficial effects of the utility model are:
1, the utility model overall structure is simple, and the design of densification location and installation meets spaces compact demand on cylinder cap.
2, the utility model can be realized engine fuel injector circumferential direction effective position, thus effectively reduce the later period assembly and
Safeguard disassembly process intermediate fuel oil leakage problem.
Detailed description of the invention
Fig. 1 is the utility model structure diagram.
Fig. 2 is that the utility model installs and uses figure.
In figure: mounting flange 1, positioning section 2, linkage section 3, internal thread segment 4, fuel injector 5, cylinder cap long nut mounting hole 6.
Specific embodiment
The utility model is described in further detail below in conjunction with Detailed description of the invention and specific embodiment.
Referring to Fig. 1 to Fig. 2, a kind of fuel injector installs positioning tool, including sequentially connected mounting flange 1, positioning section 2,
Linkage section 3 and internal thread segment 4.The mounting flange 1 is connect with sleeve or open-end wrench, and the positioning section 2 and cylinder cap are long
Nut mounting hole 6 matches positioning, the internal thread segment 4 and the fixation in mating connection of 5 fuel inlet fitting of fuel injector.
Referring to Fig. 1 to Fig. 2, during location and installation fuel injector 5, make the positioning section 2 and the long spiral shell of cylinder cap of this positioning tool
Female mounting hole 6 is mutually located, fuel injector 5 is carried out it is accurate circumferentially positioned, so that it is guaranteed that fuel injector 5 reaches skill in the position of assembly
Art required standard；And then the phenomenon that avoiding high-pressure oil pipe installation interference, improve the service life and runnability of engine.
It, cannot the above content is specific preferred embodiment further detailed description of the utility model is combined
Assert that the specific implementation of the utility model is only limited to these instructions.For the ordinary skill of the utility model technical field
For personnel, without departing from the concept of the premise utility, a number of simple deductions or replacements can also be made, above structure
It all shall be regarded as belonging to the protection scope of the utility model.
Claims (1)
1. a kind of fuel injector installs positioning tool, it is characterised in that: including sequentially connected mounting flange (1), positioning section (2),
Linkage section (3) and internal thread segment (4), the internal thread segment (4) are matched with fuel injector (5) fuel inlet fitting, the positioning
Section (2) is matched with cylinder cap long nut mounting hole (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821865188.6U CN209354284U (en) | 2018-11-13 | 2018-11-13 | A kind of fuel injector installation positioning tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821865188.6U CN209354284U (en) | 2018-11-13 | 2018-11-13 | A kind of fuel injector installation positioning tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209354284U true CN209354284U (en) | 2019-09-06 |
Family
ID=67783468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821865188.6U Active CN209354284U (en) | 2018-11-13 | 2018-11-13 | A kind of fuel injector installation positioning tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209354284U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296487A (en) * | 2018-11-13 | 2019-02-01 | 东风商用车有限公司 | A kind of fuel injector installation positioning tool |
-
2018
- 2018-11-13 CN CN201821865188.6U patent/CN209354284U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296487A (en) * | 2018-11-13 | 2019-02-01 | 东风商用车有限公司 | A kind of fuel injector installation positioning tool |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |