CN107939468A - camshaft phaser - Google Patents
camshaft phaser Download PDFInfo
- Publication number
- CN107939468A CN107939468A CN201711215603.3A CN201711215603A CN107939468A CN 107939468 A CN107939468 A CN 107939468A CN 201711215603 A CN201711215603 A CN 201711215603A CN 107939468 A CN107939468 A CN 107939468A
- Authority
- CN
- China
- Prior art keywords
- base portion
- rotor
- sealing
- insertion section
- camshaft phaser
- 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
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
- Sealing Devices (AREA)
Abstract
The present invention relates to camshaft phaser.The camshaft phaser includes stator, rotor and seal assembly.Rotor can be relative to stator rotation, and seal assembly is installed between rotor and stator the gap between canned rotor and stator.Seal assembly includes：Sealing, it includes base portion and the insertion section that can be mounted and dismounted each other, and base portion has bar shape, and insertion section can be installed on base portion from least side in the both sides on the length direction of base portion；And elastic component, it is located at the bottom of sealing so that elastic component can apply elastic force along the short transverse of base portion to base portion.The camshaft phaser of the present invention can adjust the length of the sealing of seal assembly as needed, so that the seal assembly can be applicable in the sealing in the gap between axial dimension different rotor and stator.
Description
Technical field
The present invention relates to camshaft phaser.
Background technology
Variable valve timing system is to ensure the important component of engine performance, and variable valve timing system being capable of root
According to the opening and closing moment for the valve for needing to adjust engine, so that engine obtains desired power output.
In the prior art, variable valve timing system mainly includes camshaft phaser and is connected with camshaft phaser
Camshaft, camshaft pass through the valve of linkage and engine connect.In general, camshaft phaser is by its end cap, rotor
Multiple oil pockets are internally formed in camshaft phaser so that the liquid of different pressures can be inputted to multiple oil pockets with stator three
Pressure oil makes rotor relative to stator rotation predetermined angular, thus by rotor banding moving cam axis to adjust the opening and closing of valve when
Carve.Due to needing to be spaced apart between different oil pockets in the camshaft phaser course of work, and then require to rotor with determining
Sealing is realized in gap between son, therefore the rotor of the camshaft phaser of the prior art is provided with seal assembly and comes to the gap
Realize sealing.
As illustrated in figs. 1A and ib, in the prior art, seal assembly is installed in the groove of rotor 30 so that sealing group
The length direction of part (following sealing strips 10) and the axial A roughly the same (almost parallel) of rotor 30.The seal assembly includes length
Fixed sealing strip 10 and spring 20 are spent, spring 20 is from the lower section in the short transverse of sealing strip 10 (on the radial direction R of rotor 30
Inner side) apply the spring force in (outside) upward to sealing strip 10 so that and the groove of the top of sealing strip 10 from rotor 30 is stretched
Go out and be connected to stator 40, it is achieved thereby that the sealing to the gap between rotor 30 and stator 40.But due to different cams
The axial dimension of the rotor 30 of axis phaser is different, therefore the seal assembly of the sealing strip 10 with regular length of the prior art
It is difficult to meet the needs for sealing the gap between axial dimension different rotor 30 and stator 40.Usual way is to be directed to
Different seal assembly of the exploitation of rotor 30 with different length of axial dimension, so that development cost is excessive.
The content of the invention
The defects of based on the above-mentioned prior art and be made that the present invention.The goal of the invention of the present invention is to provide a kind of cam
Axis phaser, its seal assembly can be suitable for the sealing in the gap between axial dimension different rotor and stator.
In order to realize foregoing invention purpose, the present invention adopts the following technical scheme that.
The present invention provides a kind of following camshaft phaser, and the camshaft phaser includes stator, rotor and sealing
Component, the rotor can be installed between the rotor and the stator relative to the stator rotation, the seal assembly
To seal the gap between the rotor and the stator, the seal assembly includes：Sealing, the sealing includes can
The base portion mounted and dismounted each other and insertion section, the base portion have bar shape, and the insertion section can be from the base portion
At least side in both sides on length direction is installed on the base portion；And elastic component, the elastic component are located at the sealing
The bottom in portion so that the elastic component can apply elastic force along the short transverse of the base portion to the base portion.
Preferably, the end on the length direction of the base portion is formed with the first recess, and the insertion section includes inserting
Enter portion's main body and from the convex portion of insertion section main body protrusion, the convex portion is inserted into first recess and causes the insertion
Portion is installed on the base portion.
It is highly preferred that the convex portion being capable of fully-inserted first recess so that adjacent with the base portion described to insert
The insertion section main body for entering portion is pressed against end on the length direction of the base portion.
It is highly preferred that on the width and short transverse both direction of the base portion, the ruler of the insertion section main body
It is very little roughly the same with the size of the base portion.
It is highly preferred that at least side in both sides on the length direction of the base portion, the base portion is provided with multiple
The insertion section, and the end of the opposite side opposite with the side formed with the convex portion of the insertion section main body formed with
Second recess, the convex portion is inserted into second recess so that multiple insertion sections are installed on the base with being connected to each other
Portion.
It is highly preferred that the convex portion is assembled in one with first recess and second recess by interference fit
Rise.
Preferably, threeth recess of the bottom of the base portion formed with the part for storing the elastic component.
It is highly preferred that the elastic component is spring, and on the length direction, the elastic component includes being sequentially connected with
The first curved portion, the second curved portion and the 3rd curved portion, first curved portion and the 3rd curved portion are towards the height
Top on degree direction is raised and for being connected to the sealing, and second curved portion is towards under in the short transverse
Side is raised, and the radius of curvature of second curved portion is more than the radius of curvature of first curved portion and the 3rd curved portion.
Preferably, the length direction of the sealing is approximately axially consistent with the rotor, and the rotor is outer
Circumference is formed with the groove for storing the seal assembly, the work of the top of the sealing in the elastic force of the elastic component
Stretched out under from the rotor to be connected to the stator.
By using above-mentioned technical proposal, the present invention provides a kind of new camshaft phaser, its seal assembly
Sealing includes base portion and the insertion section that can be mounted and dismounted each other so that being capable of basis by the dismounting of base portion and insertion section
Need to adjust the length of sealing, therefore the seal assembly neatly adjustment length can be applicable in the different rotor of axial dimension
The sealing in the gap between stator.
Brief description of the drawings
Fig. 1 a are the partial schematic sectional views axially of the camshaft phaser of the prior art, and it illustrates sealing group
Part and its surrounding structure；Fig. 1 b be from the partial schematic diagram of the camshaft phaser of Fig. 1 a of axial unilateral observation, it illustrates
Seal assembly and its surrounding structure.
Fig. 2 a are the schematic front view of the base portion of the sealing of the seal assembly of camshaft phaser according to the present invention；Figure
2b is the schematic side view of the base portion of the sealing of the seal assembly of camshaft phaser according to the present invention；Fig. 2 c are according to this
The schematic front view of the insertion section of the sealing of the seal assembly of the camshaft phaser of invention；Fig. 2 d are convex according to the present invention
The schematic side view of the insertion section of the sealing of the seal assembly of wheel shaft phaser.
Fig. 3 a to Fig. 3 c are camshaft phases according to the present invention used by showing for the different rotor of axial dimension
The schematic diagram of the different schemes of the sealing of the seal assembly of position device.
Fig. 4 is the schematic front view of the elastic component of the seal assembly of camshaft phaser according to the present invention.
Description of reference numerals
10 sealing strip, 20 spring, 30 rotor, 40 stator
1 sealing, 11 base portion, 111 first 12 insertion section of the 3rd recess of recess 112,121 insertion section main body
The 3rd curved portion of 122 123 second recess of convex portion, 2 spring, 21 first 22 second curved portion 23 of curved portion
A axial direction R radial direction L length direction W width H short transverses
Embodiment
Technical scheme is illustrated below with reference to Figure of description.In the present invention, length direction, width
Degree direction and short transverse refer respectively to the present invention seal assembly (base portion 11 of sealing 1 or sealing 1) length direction,
Width and short transverse；Axially and radially refer to camshaft phaser (rotor) respectively axially and radially.
The seal assembly of camshaft phaser according to the present invention includes sealing 1 and elastic component (spring 2).Sealing 1
The sealing strip 10 of the prior art with being shown in Fig. 1 a and Fig. 1 b is similar, and the sealing 1 is made of plastics elastomeric material
And for the gap between the rotor and stator of sealed cam axis phaser.Elastic component (spring 2) in Fig. 1 a and Fig. 1 b with showing
The prior art spring 20 it is similar, and the elastic component is made of rigid materials such as metals and is used to apply court to sealing 1
To the elastic force of the stator of camshaft phaser so that sealing 1 can be pressed against stator so as to be in close contact with stator, finally
Improve sealing effect.
As shown in Fig. 2 a to Fig. 2 d, sealing 1 includes base portion 11 and the insertion section 12 that can be mounted and dismounted each other, insertion
Portion 12 can be installed on base portion 11 from least side in the both sides on the length direction L of base portion 11.
In the present embodiment, base portion 11 has the generally substantially bar shape of cube structure.The length of base portion 11
Both ends on the L of direction are each formed with the first recess 111 (as shown in Figure 2 b), and the cross sectional shape of first recess 111 is circle
Shape and alongst L definite length extendeds.The bottom of base portion 11 formed with the part for storing elastic component
Three recesses 112 (as shown in Figure 2 a), the shape of the 3rd recess 112 and a part for elastic component match.
In the present embodiment, insertion section 12 include insertion section main body 121 and from insertion section main body 121 protrude convex portion
122 (as shown in Figure 2 c), the cross sectional shape of the convex portion 122 is circular shape, which is inserted into above-mentioned first recess
111 so that insertion section 12 is installed on base portion 11.
In the present embodiment, on the one hand, since convex portion 122 being capable of fully-inserted first recess 111 so that with base portion 11
The insertion section main body 121 of adjacent insertion section 12 can be pressed against the end on the length direction L of base portion 11, so that
Both base portion 11 and insertion section 12 are continuous in the length directionl.On the other hand, in the width W and short transverse H of base portion 11
In both direction, the size of insertion section main body 121 is roughly the same with the size of base portion 11, so enables to base portion 11 and insertion
Step is not present in both in the length directionl in portion 12, so that sealing effect when improving the seal assembly using the present invention.
Multiple insertion sections 12 are installed in order at least side in the both sides on the length direction L of base portion 11 so that
The end of the opposite side opposite with the side formed with convex portion 122 of insertion section main body 121 is formed with the second recess 123 (as schemed
2d).The cross sectional shape of second recess 123 is circular shape and alongst L definite length extendeds so that convex portion 122
The second recess 123 is inserted into so as to which multiple insertion sections 12 are installed on base portion 11 with being first connected to each other.
In the present embodiment, convex portion 122 is assembled in the first recess 111 and the second recess 123 by interference fit
Together.
The sealing 1 of different length can be realized by using the base portion 11 and insertion section 12 of said structure.Specifically, such as
Shown in Fig. 3 a, an insertion section 12 is installed to realize in side (left side in figure) that can be only on the length direction L of base portion 11
Sealing 1 with the first length；As shown in Figure 3b, one can be installed respectively in the both sides on the length direction L of base portion 11
The sealing 1 with the second length is realized in insertion section 12, and the second length is more than the first length；As shown in Figure 3c, can be in base
Two insertion sections 12 are installed respectively to realize the sealing 1 with the 3rd length, the 3rd length in both sides on the length direction L in portion 11
Degree is more than the second length.The sealing 1 with different length can be adapted for the rotor with axially different size respectively above.
As shown in figure 4, elastic component is the spring 2 of such as leaf spring.On the length direction L of sealing 1, which includes
First curved portion 21, the second curved portion 22 and the 3rd curved portion 23 connected in sequence.First curved portion 21 and the second curved portion 22
Raised towards the top in short transverse H, the second curved portion 22 is raised towards the lower section in short transverse H.Second curved portion 22
Radius of curvature be more than the radius of curvature of the first curved portion 21 and the 3rd curved portion 23, the radius of curvature of the first curved portion 21 and the
The radius of curvature of three curved portions 23 is equal.The arc length of second curved portion 22 is more than the arc length and the 3rd curved portion of the first curved portion 21
23 arc length.
When the spring 2 is arranged at the bottom of base portion 11 of sealing 1, the first curved portion 21 and the 3rd curved portion 23 abut
In the bottom of base portion 11, the second curved portion 22 is used to be connected to rotor.
The camshaft phaser of the present invention further includes stator and rotor, and rotor can be relative to stator rotation, seal assembly
It is installed between rotor and stator for the gap between canned rotor and stator.
Specifically, rotor is located at the radially inner side of stator, and the peripheral part of rotor is provided with the groove extended in the axial direction, close
Sealing assembly is accommodated in the groove.When seal assembly is installed on the above-mentioned groove of rotor, the length of the sealing 1 of seal assembly
Approximately axially consistent (almost parallel) of direction L and rotor, and under the action of the elastic force of elastic component sealing 1 top
Stretched out from rotor to be connected to stator, so as to improve sealing effect.
Although the embodiment of the above is set forth in technical scheme, also need to
Bright is：
1. although illustrate that base portion 11 passes through the first recess 111 and convex portion with insertion section 12 in above-mentioned embodiment
122 grafting is installed each other to realize, but the present invention is not limited thereto.It can come for example, by the interface arrangment of wedge structure etc.
Realize the installation between base portion 11 and insertion section 12, the second recess 123 of insertion section 12 can be carried out with convex portion 122 in the same manner as
Change.
2. although the first recess 111 and the convex portion of insertion section 12 of base portion 11 are illustrated in above-mentioned embodiment
122 cross sectional shape is circular shape, but the present invention is not limited thereto.Can be by the first recess 111 and the section shape of convex portion 122
Shape is formed as the other shapes of triangle, quadrangle etc., and the second recess 123 of insertion section 12 and convex portion 122 can be carried out together
The change of sample.
3. although do not clearly state, can be installed in the both sides on the length direction L of base portion 11 any number of
Insertion section 12 changes the length of sealing 1.
4. by using technical scheme, it is possible to achieve standardized designs and save for axially different size
Rotor develop the expense of new seal assembly.
Claims (9)
1. a kind of camshaft phaser, it is characterised in that the camshaft phaser includes stator, rotor and seal assembly, institute
Stating rotor can be installed between the rotor and the stator to seal relative to the stator rotation, the seal assembly
The gap between rotor and the stator is stated, the seal assembly includes：
Sealing, the sealing, which includes the base portion that can be mounted and dismounted each other and insertion section, the base portion, has bar shaped shape
Shape, the insertion section can be installed on the base portion from least side in the both sides on the length direction of the base portion；And
Elastic component, the elastic component are located at the bottom of the sealing so that the elastic component can be along the height of the base portion
Spend direction and elastic force is applied to the base portion.
2. camshaft phaser according to claim 1, it is characterised in that
End on the length direction of the base portion formed with the first recess, and
The insertion section includes insertion section main body and from the convex portion of insertion section main body protrusion, and the convex portion is inserted into described
First recess causes the insertion section to be installed on the base portion.
3. camshaft phaser according to claim 2, it is characterised in that the convex portion can fully-inserted described first
Recess so that the insertion section main body of the insertion section adjacent with the base portion is pressed against on the length direction of the base portion
End.
4. camshaft phaser according to claim 2, it is characterised in that width and height side in the base portion
To in both direction, the size of the insertion section main body is roughly the same with the size of the base portion.
5. camshaft phaser according to any one of claim 2 to 4, it is characterised in that in the length of the base portion
At least side in both sides on direction, the base portion are provided with multiple insertion sections, and
The end of the opposite side opposite with the side formed with the convex portion of the insertion section main body is formed with the second recess, institute
State convex portion and be inserted into second recess so that multiple insertion sections are installed on the base portion with being connected to each other.
6. camshaft phaser according to claim 5, it is characterised in that
The convex portion is fitted together with first recess and second recess by interference fit.
7. camshaft phaser according to any one of claim 1 to 4, it is characterised in that the bottom shape of the base portion
Into the 3rd recess of the part for being useful for storing the elastic component.
8. camshaft phaser according to claim 7, it is characterised in that the elastic component is spring, and
On the length direction, the elastic component includes the first curved portion connected in sequence, the second curved portion and the 3rd arc
Portion, first curved portion and the 3rd curved portion are raised towards the top in the short transverse and described for being connected to
Sealing, second curved portion is raised towards the lower section in the short transverse, and the radius of curvature of second curved portion is big
In first curved portion and the radius of curvature of the 3rd curved portion.
9. camshaft phaser according to any one of claim 1 to 4, it is characterised in that the length of the sealing
Direction is approximately axially consistent with the rotor, and the peripheral part of the rotor is formed with for storing the seal assembly
Groove, the top of the sealing are described fixed to be connected to from rotor stretching under the action of the elastic force of the elastic component
Son.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711215603.3A CN107939468A (en) | 2017-11-28 | 2017-11-28 | camshaft phaser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711215603.3A CN107939468A (en) | 2017-11-28 | 2017-11-28 | camshaft phaser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107939468A true CN107939468A (en) | 2018-04-20 |
Family
ID=61949251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711215603.3A Pending CN107939468A (en) | 2017-11-28 | 2017-11-28 | camshaft phaser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107939468A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112513431A (en) * | 2018-09-25 | 2021-03-16 | 舍弗勒技术股份两合公司 | Insert for camshaft phaser and camshaft phaser |
-
2017
- 2017-11-28 CN CN201711215603.3A patent/CN107939468A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112513431A (en) * | 2018-09-25 | 2021-03-16 | 舍弗勒技术股份两合公司 | Insert for camshaft phaser and camshaft phaser |
| CN112513431B (en) * | 2018-09-25 | 2022-11-15 | 舍弗勒技术股份两合公司 | Insert for camshaft phaser and camshaft phaser |
| US11542843B2 (en) | 2018-09-25 | 2023-01-03 | Schaeffler Technologies AG & Co. KG | Insertion piece for camshaft phaser and camshaft phaser |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180420 |