CN208719349U - A kind of resistance to high eccentric fuel injector/spark plug oil seal for preventing installation from turning over lip - Google Patents
A kind of resistance to high eccentric fuel injector/spark plug oil seal for preventing installation from turning over lip Download PDFInfo
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- CN208719349U CN208719349U CN201821193992.4U CN201821193992U CN208719349U CN 208719349 U CN208719349 U CN 208719349U CN 201821193992 U CN201821193992 U CN 201821193992U CN 208719349 U CN208719349 U CN 208719349U
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- lip
- support frame
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Abstract
It can prevent that the resistance to high eccentric fuel injector/spark plug oil seal for turning over lip is installed the utility model relates to one kind, including outer diameter support frame, lip support frame and rubber bodies, the outer diameter support frame is L-shaped and short side extends outwardly, the outer diameter support frame is located at the upper of rubber bodies with lip support frame, lower both ends, the outer diameter support frame is coated by rubber bodies, it is characterized in that, the intermediate position of the rubber bodies is equipped with aduncate waist, rubber bodies below waist on the inside of lip support frame are dynamic sealing body, the dynamic sealing body is equipped at least two primary seal lips being arranged above and below.Devising for the utility model innovation is resistant to the high eccentric lip of fuel injector and the oil sealing of waist combining form, solves the phenomenon that fuel oil injector is enclosed in leakage failure in large eccentricity environment.
Description
Technical field
The utility model relates to a kind of automobile-used sealing element more particularly to a kind of hermetic oil seals that high eccentric occasion uses, and belong to
In sealing structure technical field.
Background technique
Latter systems, ignition system are the components having in modern vehicle, and oil sealing is injection system and fire
The component that flower plug system has to.Fuel injector oil sealing (spark plug oil seal) generally comprises outer diameter static seal position and inner diameter seal
Position, as shown in Figure 1, inner diameter seal position mainly includes the sealing lip and dustproof lip of oil sealing, with fuel injector bar (spark stopper rod)
Contact, prevents engine interior oil liquid leakage into air, when preventing external dust from entering engine interior or spray bar leakage
Fuel oil enters engine interior.Outer diameter static seal position refers mainly to the rubber position of oil sealing outer diameter, with engine shell body opening interference
Contact, plays the role of static seal.In recent years, with the development of engine technology and light-weighted requirement, fuel injector (spark plug)
The material of the installation shell of oil sealing becomes plastics by original cast iron, cast aluminium, since plastic casing is by forming technique, material etc.
Limitation, after the geometric tolerances such as position degree, verticality between housing bore and shell are installed in place, in housing bore center and axis
The concentricity of the heart is poor (Kong Zhongxin is more than 2mm relative to the bias of axis), and the applying working condition of fuel injector oil sealing is caused to be deteriorated.
And fuel injector (spark plug) oil enveloping structure used on the market now, resistance to bias ability are no more than 1mm.Such structure
It will be unable to the requirement for the motor body for meeting new material.
Utility model content
The utility model is not able to satisfy the engine of plastics for existing fuel injector (spark plug) oil enveloping structure on the market
The status of shell requirement provides a kind of resistance to high eccentric fuel injector/spark plug oil seal that can prevent installation from turning over lip.
The technical solution that the utility model solves above-mentioned technical problem is as follows:
A kind of resistance to high eccentric fuel injector/spark plug oil seal for preventing installation from turning over lip, including outer diameter support frame, lip
Support frame and rubber bodies, the outer diameter support frame is L-shaped and short side extends outwardly, the outer diameter support frame and lip
Support frame is located at the upper/lower terminal of rubber bodies, and the outer diameter support frame is coated by rubber bodies, the rubber bodies
Intermediate position is equipped with aduncate waist, and the rubber bodies below waist on the inside of lip support frame are dynamic sealing body, it is described move it is close
It seals body and is equipped at least two primary seal lips being arranged above and below.
The beneficial effects of the utility model are: the utility model innovation devise the lip for being resistant to high eccentric fuel injector and
The oil sealing of waist combining form solves the phenomenon that fuel oil injector is enclosed in leakage failure in large eccentricity environment.
Based on the above technical solution, the utility model can also do following improvement.
Further, at least one dustproof lip is additionally provided on the dynamic sealing body, the dustproof lip is located at the upper of primary seal lip
Side.
Beneficial effect using above-mentioned further technical solution is that the oil liquid leakage of engine interior can be prevented to air
In, while preventing external dust from entering fuel oil when engine interior or spray bar leak and enter and starting inside.
Further, the lip support frame is coated by rubber bodies.
Further, the lip support frame is tightly attached to the outside of rubber bodies.
Further, the rubber bodies by ACM rubber (acrylic rubber), AEM rubber (ethylene-acrylate rubber) or
FKM rubber (fluorubber) is made.
Detailed description of the invention
Fig. 1 is fuel injector/spark plug oil seal schematic view of the mounting position；
Fig. 2 is fuel injector/spark plug oil seal structural schematic diagram of embodiment 1；
Fig. 3 is fuel injector/spark plug oil seal structural schematic diagram of embodiment 2；
Fig. 4 is fuel injector/spark plug oil seal structural schematic diagram of embodiment 3；
In Fig. 1~4,1, high-pressure oil pipe；2, oil pipe set；3, fuel injector pipe；4, engine bonnet；5, oil sealing；6, outer diameter branch
Support bone frame；7, rubber bodies；8, lip support frame；9, waist；10, dynamic sealing body；11, primary seal lip；12, dustproof lip.
Specific embodiment
The principles of the present invention and feature are described below in conjunction with example, example is served only for explaining that this is practical
It is novel, it is not intended to limit the scope of the utility model.
Embodiment 1:
As shown in Fig. 2, a kind of resistance to high eccentric fuel injector/spark plug oil seal that can prevent installation from turning over lip, including outer diameter branch
Support bone frame 6, lip support frame 8 and rubber bodies 7, the outer diameter support frame is L-shaped and short side extends outwardly, the outer diameter
Support frame is located at the upper/lower terminal of rubber bodies with lip support frame and is coated by rubber bodies, the rubber bodies
Intermediate position be equipped with aduncate waist 9, the rubber bodies below waist on the inside of lip support frame are dynamic sealing body 10, described
It is set on dynamic sealing body there are two the primary seal lip 11 being arranged above and below, the top of the primary seal lip is equipped with a dustproof lip 12.
Embodiment 2:
As shown in figure 3, a kind of resistance to high eccentric fuel injector/spark plug oil seal that can prevent installation from turning over lip, including outer diameter branch
Support bone frame 6, lip support frame 8 and rubber bodies 7, the outer diameter support frame is L-shaped and short side extends outwardly, the outer diameter
Support frame and lip support frame are located at the upper/lower terminal of rubber bodies, and the outer diameter support frame is wrapped by rubber bodies
It covers, the lip support frame is tightly attached to the outside of rubber bodies, and the intermediate position of the rubber bodies is equipped with aduncate waist
9, the rubber bodies below waist on the inside of lip support frame are dynamic sealing body 10, set that there are two be arranged above and below on the dynamic sealing body
The top of primary seal lip 11, the primary seal lip is equipped with a dustproof lip 12.
Embodiment 3:
As shown in figure 4, a kind of resistance to high eccentric fuel injector/spark plug oil seal that can prevent installation from turning over lip, including outer diameter branch
Support bone frame 6, lip support frame 8 and rubber bodies 7, the outer diameter support frame is L-shaped and short side extends outwardly, the outer diameter
Support frame is located at the upper/lower terminal of rubber bodies with lip support frame and is coated by rubber bodies, the rubber bodies
Intermediate position be equipped with aduncate waist 9, the rubber bodies below waist on the inside of lip support frame are dynamic sealing body 10, described
Primary seal lip 11 evenly distributed up and down there are three being set on dynamic sealing body.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (5)
1. one kind can prevent from installing the resistance to high eccentric fuel injector/spark plug oil seal for turning over lip, including outer diameter support frame, lip branch
Support bone frame and rubber bodies, the outer diameter support frame is L-shaped and short side extends outwardly, the outer diameter support frame and lip branch
Support bone frame is located at the upper/lower terminal of rubber bodies, and the outer diameter support frame is coated by rubber bodies, which is characterized in that institute
The intermediate position for stating rubber bodies is equipped with aduncate waist, and the rubber bodies below waist on the inside of lip support frame are dynamic sealing
Body, the dynamic sealing body are equipped at least two primary seal lips being arranged above and below.
2. fuel injector/spark plug oil seal according to claim 1, which is characterized in that be additionally provided on the dynamic sealing body to
A few dustproof lip, the dustproof lip are located at the top of primary seal lip.
3. fuel injector/spark plug oil seal according to claim 1 or 2, which is characterized in that the lip support frame is by rubber
Body is coated.
4. fuel injector/spark plug oil seal according to claim 1 or 2, which is characterized in that the lip support frame is tightly attached to
The outside of rubber bodies.
5. fuel injector/spark plug oil seal according to claim 1 or 2, which is characterized in that the rubber bodies by ACM rubber,
AEM rubber or FKM rubber are made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821193992.4U CN208719349U (en) | 2018-07-26 | 2018-07-26 | A kind of resistance to high eccentric fuel injector/spark plug oil seal for preventing installation from turning over lip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821193992.4U CN208719349U (en) | 2018-07-26 | 2018-07-26 | A kind of resistance to high eccentric fuel injector/spark plug oil seal for preventing installation from turning over lip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208719349U true CN208719349U (en) | 2019-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821193992.4U Active CN208719349U (en) | 2018-07-26 | 2018-07-26 | A kind of resistance to high eccentric fuel injector/spark plug oil seal for preventing installation from turning over lip |
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| CN (1) | CN208719349U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825786A (en) * | 2018-07-26 | 2018-11-16 | 烟台润蚨祥油封有限公司 | A kind of resistance to high eccentric fuel injector/spark plug oil seal for preventing installation from turning over lip |
-
2018
- 2018-07-26 CN CN201821193992.4U patent/CN208719349U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825786A (en) * | 2018-07-26 | 2018-11-16 | 烟台润蚨祥油封有限公司 | A kind of resistance to high eccentric fuel injector/spark plug oil seal for preventing installation from turning over lip |
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