CN209212447U - A kind of fuel injector oil sealing of resistance to large eccentricity - Google Patents
A kind of fuel injector oil sealing of resistance to large eccentricity Download PDFInfo
- Publication number
- CN209212447U CN209212447U CN201821600486.2U CN201821600486U CN209212447U CN 209212447 U CN209212447 U CN 209212447U CN 201821600486 U CN201821600486 U CN 201821600486U CN 209212447 U CN209212447 U CN 209212447U
- Authority
- CN
- China
- Prior art keywords
- main lip
- connector
- oil sealing
- fuel injector
- compression ring
- 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.)
- Active
Links
Landscapes
- Fuel-Injection Apparatus (AREA)
Abstract
A kind of fuel injector oil sealing of resistance to large eccentricity, it is related to oil seal technique field, including outside diameter seal circle, main lip and servo-actuated position, outer skeleton is equipped in the outside diameter seal circle, inner frame is equipped in the main lip, the outside diameter seal circle is connect with the main lip by servo-actuated position, the servo-actuated position includes connector and compression ring, the shaft section of the connector is a quarter circular ring shape, and the upper end horizontal connection of one end of the connector and the main lip, the other end of the connector is connect with the upper end arc transition of the outside diameter seal circle, the shaft section of the compression ring is in infundibulate, the upper end of the compression ring is plugged in the lateral wall of the connector, the lower end of the compression ring is tightly attached on the lateral wall of the main lip.The utility model makes the connection of the outer diameter of fuel injector and the main lip of oil sealing keep uniform sealed increscence amount under eccentric state, thus keep oil film uniform, not easy oil leakage.
Description
Technical field
The utility model relates to oil seal technique fields, and in particular to a kind of fuel injector oil sealing of resistance to large eccentricity.
Background technique
Fuel oil injector seals in use, rubber bodies and engine bonnet interference seal at outer diameter, main lip and spray
Oily device interference seal, but engine bonnet oil sealing hole center is often misaligned with fuel injector center, and oil sealing is caused usually to be in
Eccentric sealed state；As shown in Figure 1, when oil sealing hole and fuel injector are in eccentric state, the side the B under tension of oil sealing, the side C
It is squeezed power, it is normal in the sealing of C side seal；Since rubber bodies are sealed in oil sealing hole at the outer diameter of oil sealing, the internal diameter of oil sealing
Main lip and fuel injector seal, therefore oil sealing generates pulling force between the internal-and external diameter of the side B, leads to main lip and fuel injector in the side B
Outer diameter at sealed increscence amount reduce, the oil film formed between main lip and fuel injector outer diameter thickens, and oil film tension becomes smaller, because
This is also easy to produce oil leak in the side B.
Summary of the invention
In order to solve above-mentioned problem of the prior art, the utility model provides a kind of fuel injector oil sealing of resistance to large eccentricity,
The connection of the outer diameter of fuel injector and the main lip of oil sealing is set to keep uniform sealed increscence amount under eccentric state, to keep oil film equal
It is even, not easy oil leakage.
The purpose of this utility model can be realized by the following technical scheme: a kind of fuel injector oil sealing of resistance to large eccentricity, packet
Outside diameter seal circle, main lip and servo-actuated position are included, outer skeleton is equipped in the outside diameter seal circle, is equipped with in-seam in the main lip
Frame, the outside diameter seal circle and the main lip are connect by servo-actuated position, and the servo-actuated position includes connector and compression ring,
The shaft section of the connector is a quarter circular ring shape, and one end of the connector and the upper end of the main lip are horizontal
Connection, the other end of the connector are connect with the upper end arc transition of the outside diameter seal circle, the shaft section of the compression ring
In infundibulate, the upper end of the compression ring is plugged in the lateral wall of the connector, and the lower end of the compression ring is tightly attached to institute
On the lateral wall for stating main lip.
Preferably, the lower end of the compression ring is equipped with several compact heaps of circumference uniform distribution, and the compact heap is tightly attached to described
On the lateral wall of main lip.It is squeezed the two sides of power and pulling force in oil sealing, compression ring can break up the power that the external world applies, further
Guarantee that compression ring can keep sealing lip to apply thrust in oil sealing by the side of pulling force.
Preferably, the shaft section of the outer skeleton and the inner frame is rectangle, and the outer skeleton and the in-seam
Frame is arranged in parallel.
Preferably, the compression number of blocks is 20, lower end of the circumference uniform distribution in the compression ring.
Preferably, the outside diameter seal circle, the connector and the main lip are that rubber material is made.
Preferably, the outer skeleton and the inner frame are made of corrosion resistant metal material.
The use principle of the utility model: the outside diameter seal circle and oil sealing hole interference seal of oil sealing, outer skeleton is to entire oil
The effect of support, the outer diameter interference seal of main lip and fuel injector are closed, inner frame vulcanizes in main lip, guarantees main lip
With the magnitude of interference of fuel injector outer diameter, to guarantee the sealing performance of main lip；When oil sealing hole and fuel injector are matched in eccentric state
Internal diameter and outer diameter in use, servo-actuated position connection oil sealing are closed, is squeezed the side of power in oil sealing, the sealing performance of oil sealing is just
Often, in the side of oil sealing under tension, one end that connector is connect with main lip is horizontal connection, connector and outside diameter seal circle
One end of connection is arc transition connection, therefore when oil sealing under tension, and connector, which is stretched, causes annulus opening to open expansion
Greatly, it is plugged on thrust of the compression ring upper end of connector lateral wall by obliquely downward outward, according to active force and reaction force
Principle, in the lower end of compression ring, compact heap generates the extruding force of oblique upper inwardly to the back side of main lip, by main lip with
The case where reducing at fuel injector outer diameter because of magnitude of interference caused by bias is corrected, and magnitude of interference herein is increased, to guarantee
The sealing performance of oil sealing.
Resultant effect brought by the utility model includes:
The utility model simple structure is reasonable, easy to use, and the connector for being servo-actuated position is in a quarter circular ring shape, inclined
Under heart shaped state, the side connector of oil sealing under tension, which is stretched, causes annulus opening to be opened, and has biggish with kinetic force；Together
When compression ring upper end be plugged in the lateral wall of connector, lower end is tightly attached on the lateral wall of main lip, passes through connector
It opens under the action of kinetic force, so that the compact heap of compression ring lower end has the thrust towards fuel injector internal diameter to main lip, it is ensured that
Main lip to the magnitude of interference of fuel injector outer diameter, thus guarantee servo-actuated position with kinetic force in the case where, guarantee outside fuel injector
Oil film thickness at diameter is uniformly moderate, guarantees that oil sealing internal diameter is oil-proof.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model background technique.
Fig. 2 is the structural schematic diagram of the fuel injector oil sealing of the resistance to large eccentricity of the utility model embodiment.
Fig. 3 is structural schematic diagram at the A of the fuel injector oil sealing of the resistance to large eccentricity of the utility model embodiment.
Fig. 4 is the structural schematic diagram of the compression ring of the fuel injector oil sealing of the resistance to large eccentricity of the utility model embodiment.
Wherein, the identical appended drawing reference of identical component in the accompanying drawings；The attached drawing is not drawn according to the actual ratio.
Specific embodiment
The utility model is further illustrated with reference to the accompanying drawings and examples.
Embodiment
A kind of fuel injector oil sealing of resistance to large eccentricity, including outside diameter seal circle 1, main lip 2 and servo-actuated position 3, the outer diameter
It is equipped with outer skeleton 4 in sealing ring 1, inner frame 5 is equipped in the main lip 2, the outside diameter seal circle 1 and the main lip 2 are logical
It crosses servo-actuated position 3 to connect, the servo-actuated position 3 includes connector 31 and compression ring 32, and the shaft section of the connector 31 is four
/ mono- circular ring shape, and the upper end horizontal connection of one end of the connector 31 and the main lip 2, the connector 31
The other end is connect with the upper end arc transition of the outside diameter seal circle 1, and the shaft section of the compression ring 32 is in infundibulate, the pressure
The upper end of tight ring 32 is plugged in the lateral wall 311 of the connector 31, and the lower end of the compression ring 32 is tightly attached to the main lip
On the lateral wall 311 of mouth 2.
The lower end of the compression ring 32 is equipped with the compact heap 321 of circumference uniform distribution, and 321 quantity of compact heap is 20, institute
Compact heap 321 is stated to be tightly attached on the lateral wall 311 of the main lip 2.It is squeezed the two sides of power and pulling force in oil sealing, compression ring 32
The power that the external world applies can be broken up, be further ensured that compression ring 32 can be kept applying by the side of pulling force in oil sealing to sealing lip and push away
Power.
The shaft section of the outer skeleton 4 and the inner frame 5 is rectangle, and the outer skeleton 4 and the inner frame 5
It is arranged in parallel.
The outside diameter seal circle 1, the connector 31 and the main lip 2 are that rubber material is made.The outer skeleton
4 and the inner frame 5 be made of corrosion resistant metal material.
The use principle of the utility model embodiment: the outside diameter seal circle 1 and oil sealing hole interference seal of oil sealing, outer skeleton 4
Play the role of support, the outer diameter interference seal of main lip 2 and fuel injector to entire oil sealing, inner frame 5 vulcanizes in main lip 2
It is interior, guarantee the magnitude of interference of main lip 2 and fuel injector outer diameter, to guarantee the sealing performance of main lip 2；When oil sealing hole and fuel injector
When being used cooperatively in eccentric state, it is servo-actuated internal diameter and outer diameter that position 3 connects oil sealing, is squeezed the side of power in oil sealing,
The sealing performance of oil sealing is normal, and in the side of oil sealing under tension, one end that connector 31 is connect with main lip 2 is horizontal connects
It connects, one end that connector 31 is connect with outside diameter seal circle 1 is arc transition connection, therefore when oil sealing under tension, connector
31, which are stretched, causes annulus opening to open expansion, is plugged on 32 upper end of compression ring of 31 lateral wall 311 of connector by outward
The thrust of obliquely downward, according to the principle of active force and reaction force, in the lower end of compression ring 32,321 pairs of compact heap main lips 2
The back side generates the extruding force of oblique upper inwardly, by main lip 2 with reduce because of magnitude of interference caused by bias at fuel injector outer diameter
Situation is corrected, and magnitude of interference herein is increased, to guarantee the sealing performance of oil sealing.
Resultant effect brought by the utility model embodiment includes:
The utility model embodiment simple structure is reasonable, easy to use, and the connector 31 for being servo-actuated position 3 is in quadrant
Annular, under eccentric state, the side connector 31 of oil sealing under tension, which is stretched, causes annulus opening to be opened, and has biggish
With kinetic force；The upper end of compression ring 32 is plugged in the lateral wall 311 of connector 31 simultaneously, and lower end is tightly attached to the outer of main lip 2
On side wall 311, under the action of being opened by connector 31 with kinetic force, so that 321 pairs of main lips of the compact heap of 32 lower end of compression ring
Mouthfuls 2 have the thrust towards fuel injector internal diameter, it is ensured that main lip 2 is to the magnitude of interference of fuel injector outer diameter, thus guaranteeing servo-actuated position 3
With kinetic force in the case where, guarantee fuel injector outer diameter at oil film thickness it is uniformly moderate, guarantee oil sealing internal diameter it is oil-proof.
This specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to cooperate specification revealed interior
Hold, so that those skilled in the art understands and reads, is not intended to limit the utility model enforceable qualifications, therefore not
Has technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are practical new not influencing this
Under the effect of type can be generated and the purpose that can reach, it should all still fall in the revealed technology contents of the utility model and obtain and can contain
In the range of lid.Meanwhile cited such as "upper" in this specification, "lower", "left", "right", " centre " and " one " term,
It is merely convenient to being illustrated for narration, rather than to limit the enforceable range of the utility model, the change of relativeness or tune
It is whole, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the utility model.
The utility model is described above with reference to preferred embodiment, but the protection scope of the utility model is not
Limited to this, any all technical solutions fallen within the scope of the appended claims are within the protection scope of the present utility model.?
In the case where not departing from the scope of the utility model, various improvement can be carried out to it and can be replaced with equivalent therein
Component.Especially, as long as structural conflict is not present, items technical characteristic mentioned in the various embodiments can be in any way
It combines.
Claims (6)
1. a kind of fuel injector oil sealing of resistance to large eccentricity, which is characterized in that including outside diameter seal circle, main lip and servo-actuated position, institute
It states and is equipped with outer skeleton in outside diameter seal circle, inner frame is equipped in the main lip, the outside diameter seal circle and the main lip are logical
Servo-actuated position connection is crossed, the servo-actuated position includes connector and compression ring, and the shaft section of the connector is quadrant
Annular, and the upper end horizontal connection of one end of the connector and the main lip, the other end of the connector with it is described
The upper end arc transition of outside diameter seal circle connects, and the shaft section of the compression ring is in infundibulate, the upper end grafting of the compression ring
In the lateral wall of the connector, the lower end of the compression ring is tightly attached on the lateral wall of the main lip.
2. the fuel injector oil sealing of resistance to large eccentricity according to claim 1, which is characterized in that the lower end of the compression ring is equipped with
Several compact heaps of circumference uniform distribution, the compact heap are tightly attached on the lateral wall of the main lip.
3. the fuel injector oil sealing of resistance to large eccentricity according to claim 2, which is characterized in that the outer skeleton and the in-seam
The shaft section of frame is rectangle, and the outer skeleton is arranged in parallel with the inner frame.
4. the fuel injector oil sealing of resistance to large eccentricity according to claim 3, which is characterized in that the compression number of blocks is 20
It is a, lower end of the circumference uniform distribution in the compression ring.
5. the fuel injector oil sealing of resistance to large eccentricity according to claim 4, which is characterized in that the outside diameter seal circle, described
Connector and the main lip are that rubber material is made.
6. the fuel injector oil sealing of resistance to large eccentricity according to claim 5, which is characterized in that the outer skeleton and the in-seam
Frame is made of corrosion resistant metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821600486.2U CN209212447U (en) | 2018-09-29 | 2018-09-29 | A kind of fuel injector oil sealing of resistance to large eccentricity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821600486.2U CN209212447U (en) | 2018-09-29 | 2018-09-29 | A kind of fuel injector oil sealing of resistance to large eccentricity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209212447U true CN209212447U (en) | 2019-08-06 |
Family
ID=67455128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821600486.2U Active CN209212447U (en) | 2018-09-29 | 2018-09-29 | A kind of fuel injector oil sealing of resistance to large eccentricity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209212447U (en) |
-
2018
- 2018-09-29 CN CN201821600486.2U patent/CN209212447U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207018533U (en) | Sealing ring | |
| CN209212447U (en) | A kind of fuel injector oil sealing of resistance to large eccentricity | |
| CN110185801A (en) | Special-shaped mesolow sealing ring | |
| CN205578973U (en) | Fastening type flange connections | |
| CN208845711U (en) | A kind of hydraulic cylinder piston rod anti-extrusion dustband and hydraulic cylinder | |
| CN209725232U (en) | Sanitation-grade welded type butterfly valve | |
| CN103195944B (en) | A kind of stopcock of sealing configuration | |
| CN212055908U (en) | Elastic flashboard type gate valve | |
| CN201145049Y (en) | Needle valve sealing structure | |
| CN207514227U (en) | For the sealing element of liquid compound spring | |
| CN206972936U (en) | A kind of butterfly valve | |
| CN209245403U (en) | A kind of anti-leakage valve | |
| CN211779070U (en) | Two-stage air-locking material leakage-proof gate valve | |
| CN206159475U (en) | Sealing washer with automatic compensation function | |
| CN207378149U (en) | For the sealing element of liquid compound spring | |
| CN207018557U (en) | One kind takes out rod type gate valve | |
| CN207559518U (en) | Environment-protection type outdoor terminal cable sealing structure | |
| US20210339922A1 (en) | Reinforced sealing barrel cover | |
| CN220354500U (en) | Clamping ring type high-pressure stop valve | |
| CN214113500U (en) | High leakproofness cement sample storage tank | |
| CN204901045U (en) | Valve sealing element | |
| CN217272019U (en) | Sleeve emptying stop valve | |
| CN208761259U (en) | A kind of glue bottle cap easy to use | |
| CN108869911A (en) | A kind of glass tube seal structure and encapsulating method for ultra-high vacuum system | |
| CN112110032A (en) | Sealing structure for small-pot ointment iron-plastic package |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |