CN103958839A - Camshaft adjuster - Google Patents
Camshaft adjuster Download PDFInfo
- Publication number
- CN103958839A CN103958839A CN201280042337.8A CN201280042337A CN103958839A CN 103958839 A CN103958839 A CN 103958839A CN 201280042337 A CN201280042337 A CN 201280042337A CN 103958839 A CN103958839 A CN 103958839A
- Authority
- CN
- China
- Prior art keywords
- blade
- camshaft adjuster
- side recess
- seal element
- groove
- 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
- 230000000694 effects Effects 0.000 claims description 6
- 230000000295 complement effect Effects 0.000 abstract description 11
- 238000007789 sealing Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 description 5
- 230000002349 favourable effect Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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
- F01L1/3442—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 using hydraulic chambers with variable volume to transmit the rotating force
-
- 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
- F01L1/3442—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 using hydraulic chambers with variable volume to transmit the rotating force
- F01L2001/3445—Details relating to the hydraulic means for changing the angular relationship
- F01L2001/34479—Sealing of phaser devices
-
- 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
- F01L2303/00—Manufacturing of components used in valve arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
Proposed is a camshaft adjuster (1) which has a drive input element (2) and a drive output element (3) which can be rotated relative to one another by means of hydraulic medium, and the drive input element (2) or the drive output element (3) have sealing elements (6) which are arranged in grooves (7) provided for the purpose, and the groove (7) has an undercut (8) which interacts with a complementary geometry (12) of the sealing element (6).
Description
Technical field
The present invention relates to a kind of camshaft adjuster.
Background technique
Camshaft adjuster in internal-combustion engine for changing the control time of firing chamber valve, to form changeably the phase relationship between bent axle and camshaft in the angular range that can define between maximum anticipated future position and maximum delay position.Control time has reduced and has consumed and discharge the coupling of current load and rotating speed.For this object, camshaft adjuster is integrated in the power train that torque is delivered to camshaft by bent axle.This power train can for example realize as belt transmission, chain transmission or gear transmission.
In hydraulic camshaft adjuster, the one or more pairs of interactional pressure chambers that can oil pressure load of drive element and driving element structure.At this, driving element and drive element are arranged coaxially.By being full of and emptying single pressure chamber produces the relative movement between driving element and drive element.Between driving element and drive element, the spring of effect pushes driving element on beneficial direction with respect to drive element rotatably.This beneficial direction can be in the same way in or be in reverse to torsional direction.
The common structural type of hydraulic camshaft adjuster is blade type regulator.Blade type regulator has stator, rotor and driving element.Rotor is mostly connected in anti-relative rotation with camshaft and forms drive element.Stator is connected in anti-relative rotation equally each other with driving element and also constructs if desired single type.At this, rotor coaxial is in stator and in stator.The blade that rotor and stator radially extend with it represents the oil pocket of effect on the contrary, and described oil pocket can load and make the relative movement between stator and rotor to become possibility by oil pressure." blade of insertion " in blade and rotor or stator single type ground structure and/or set groove for this reason that be arranged in rotor or stator.In addition, blade type regulator has various sealing covers.Stator, driving element and sealing cover fix via a plurality of screw links.
DE19963094A1 shows a kind of camshaft adjuster, and wherein, blade structure becomes to have given the light sheet of elastic force.This thin blade of having given elastic force make high adjusting angle become may and simultaneously by giving elastic force between two active chambers integrated seal function.
Summary of the invention
The object of the invention is to illustrate a kind of camshaft adjuster, it is easy to install and be configured between active chamber reliably for the seal element sealing especially.
According to the present invention, this object realizes by the feature of claim 1.
Be achieved as follows thus, that is, so mating reaction of complementary geometrical shape of the side recess of groove and seal element, obtains the travel limits in the radial direction that is.Seal element can be assembled by axial distolateral departure place driving element or drive element and fix in the radial direction by side recess according to the present invention in the situation auxiliary without external mounting.This is particularly advantageous in the situation of spring-loaded seal element.
Seal element is preferably by constructed in plastic material.Alternatively, seal element can be by metal.Except used material, also can be provided with coating.
Can be in the whole length of groove or extend in a part for the whole length of groove according to side recess of the present invention.Similarly, the complementary geometrical shape of seal element can partly or in the whole length of seal element be constructed.
In a kind of design proposal of the present invention, seal element and blade single type ground structure.Blade is seal element simultaneously and can be placed in groove driving element or drive element.This type of blade structure becomes the dividing element of thin-walled, and it advantageously can be by sheet material structure.Blade in other words seal element has the geometrical shape with respect to the complementation of side recess.The pretightening force of spring element is being pushed blade seal element therefore push complementary geometrical shape towards side recess according to the present invention in other words in the radial direction.Side recess according to the present invention is arranged in range restriction in the radial direction.In the state of the assembling of drive element and driving element, be preferably provided with the complementary geometrical shape of seal element and the residue spacing between side recess.Blade in other words seal element is pushed in groove in the axial direction.Material can be provided for blade seal element in other words as plastics and/or metal.Except used material, also can be provided with coating.
In a kind of favourable design proposal, seal element spring loads ground structure.Seal element is arranged in the radially distolateral place of blade.Spring-loaded seal element is the coaxiality error between balance drive element and drive element advantageously.Side recess according to the present invention is arranged in maximum travel limits in the radial direction.In the state of the assembling of drive element and driving element, be preferably provided with the complementary geometrical shape of seal element and the residue spacing between side recess.
In a kind of structural scheme of the present invention, side recess can be constructed in the whole length of groove.Alternative in this place, a part for groove can be arranged to side recess.For the structure of the structure of the side recess in the whole length of groove complementary geometrical shape in its whole length for seal element, be favourable because by seal element the geometrical shape based on complementary widen provide more, for can be positioned on the structure space of the spring element of set recess for this reason of seal element.Therefore, spring element abduction and can there is higher spring force equally significantly.
In a kind of particularly preferred design proposal, side recess is arranged to backstop radially.Advantageously, seal element can be positioned in groove at driving element place or in drive element place is placed on groove and before driving element and drive element assembling anti-loosely.Correspondingly favourable as follows, that is, and seal element and blade single type ground structure.Blade in other words the preferred thin-walled of seal element ground structure and same anti-loosely with driving element or drive element preassembly.
In a kind of design proposal of the present invention, side recess has conical shape.Conical shape has the larger surface of contact between seal element and side recess.The conical shape of the side structure at groove of side recess can contribute to seal element in the location at the boundary wall place of groove.By the additional spring to seal element, load, seal element reclines with the boundary wall of groove in preassembled state.Therefore, advantageously in the situation of the direction transformation of the adjusting of camshaft adjuster, react on the conversion that reclines in groove.Identical effect can be delivered to blade single type on the seal element of constructing.
Alternatively, different straight lines with non-directional side recess geometrical shape be to imagine.
In another design proposal of the present invention, side recess is constructed symmetrically on the cross section of groove.By additional spring, be loaded with and help seal element centering in groove.Same effect can be delivered to blade single type on the seal element of constructing.
For this reason, different straight lines with non-directional side recess geometrical shape be to imagine.
Alternatively, various side recess geometrical shape can or realize in a groove in plurality of grooves.
The manufacture of the side recess in groove can realize by milling, sintering, cast, grinding or similar technique.With driving element or the non-single type of drive element the side recess of constructing can form together with simple groove driving element or drive element as small disc, the axle collar or analog by additional element.For example rectangle, circle or analogous shape are to imagine to the geometrical shape of a large amount of cross sections for groove.
In a kind of structural scheme of the present invention, spring loads seal element, and wherein, the pretightening force of spring element is towards the side recess crush seal element of groove and therefore limit spring travel radially.Advantageously, seal element can be positioned in groove at driving element place or in drive element place is placed in groove and before driving element and drive element assembling anti-loosely.Correspondingly favourable as follows, that is, and seal element and blade single type ground structure.Blade in other words the preferred thin-walled of seal element ground structure and same anti-loosely with driving element or drive element preassembly.
Arrangement according to the invention scheme by side recess in the groove that holds seal element or blade realizes the simplification in preassembly.In addition can obtain anti-error mistake proofing effect, for example the confession in assembling can be guaranteed clear and definite azimuthal orientation by the complementary geometrical shape at seal element place at once thus.
Accompanying drawing explanation
Below shown in the drawings of embodiments of the invention.
Wherein:
Fig. 1 shows the drive element with the seal element through assembling.
Embodiment
Fig. 1 shows a kind of drive element 3 with the seal element 6 through assembling.Drive element 3 is configured to impeller, and wherein, four blades that distribute at circumference 4 are shaped and by wheel hub 11, are stretched out in radial direction 10 with drive element 3 (rotor) single type ground.Blade 4 divides out the active chamber A, the B that work on the contrary, the restriction on its space as known in the art by have radially the unshowned stator of the blade extending or driving element 2 and where necessary additional side cover 15 complete.Wheel hub 11 is set for fixing in anti-relative rotation with camshaft 16 not shown further or with the adapter for camshaft 16.At radially distolateral 5 of blade 4, be configured with groove 7, described groove respectively has side recess 8.In groove 7, seal element 6 is by preassembly.Seal element 6 is configured to plastic strip.The anti-card side of complementary geometrical shape 12 recess 8 of seal element 6.Groove 7 is the rectangle moulding (Gestalt) with the groove bottom 13 of straight line and the interface 14 of straight line, and the interface of described straight line is the guiding at groove 7 for seal element 6.Interface 14 is formed on the portion that reclines for seal element 6 in service of camshaft adjuster.The cross section of groove 7 extends on the whole axial length of drive element 3.The not shown spring element 9 being arranged in seal element 6, it is outside also therefore towards side recess 8 ground crush seal elements 6 in radial direction 10.
Reference numerals list
1) camshaft adjuster
2) driving element
3) drive element
4) blade
5) radially distolateral
6) seal element
7) groove
8) side recess
9) spring element
10) radial direction
11) wheel hub
12) complementary geometrical shape
13) groove bottom
14) interface
15) side cover
16) camshaft
Claims (10)
1. camshaft adjuster (1), with
-driving element (2) and drive element (3),
-wherein, described driving element (2) and described drive element (3) have a plurality of radial fingers to blade (4),
-wherein, described driving element (2) and described drive element (3) form the active chamber (A, B) of effect on the contrary,
-wherein, the blade that the blade (4) of each active chamber (A, B) by the blade by described driving element (2) (4) and described drive element (3) forms is to limiting,
-wherein, described active chamber (A, B) can utilize hydraulic medium to carry out pressure-loaded, to realize the relative torsion between described driving element (2) and described drive element (3),
-wherein, the radial finger of blade (4) to distolateral (5) radial finger with seal element (6) or blade (4) to distolateral (5) with seal element (6) in contacting,
-wherein, described seal element (6) is arranged in the groove (7) of described blade (4),
It is characterized in that,
The cross section of described groove (7) has side recess (8), and this side recess is instead blocked by described seal ring (6).
2. camshaft adjuster according to claim 1, is characterized in that, described blade (4) and described seal element (6) single type ground structure.
3. camshaft adjuster according to claim 1, is characterized in that, described seal element (6) is spring-loaded.
4. camshaft adjuster according to claim 1, is characterized in that, described side recess (8) is along the whole length structure of described groove (7).
5. camshaft adjuster according to claim 1, is characterized in that, described side recess (8) is the backstop in radial direction (10).
6. according to camshaft adjuster in any one of the preceding claims wherein, it is characterized in that, described side recess (8) is constructed conically.
7. according to camshaft adjuster in any one of the preceding claims wherein, it is characterized in that, described side recess (8) is symmetrical in the cross section of described groove (7).
8. camshaft adjuster according to claim 1 and 2, it is characterized in that, described seal element (6) be spring-loaded and described spring element (9) pretightening force towards described side recess (8) push described seal element (6) and therefore spring travel be radially limited.
9. with driving element (2) or the drive element (3) of with good grounds seal element in any one of the preceding claims wherein (6).
10. according to the seal element of camshaft adjuster in any one of the preceding claims wherein (1) (6).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011081968.1 | 2011-09-01 | ||
| DE102011081968A DE102011081968A1 (en) | 2011-09-01 | 2011-09-01 | Phaser |
| PCT/EP2012/059534 WO2013029815A1 (en) | 2011-09-01 | 2012-05-23 | Camshaft adjuster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103958839A true CN103958839A (en) | 2014-07-30 |
Family
ID=46148874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280042337.8A Pending CN103958839A (en) | 2011-09-01 | 2012-05-23 | Camshaft adjuster |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20140137822A1 (en) |
| CN (1) | CN103958839A (en) |
| DE (1) | DE102011081968A1 (en) |
| WO (1) | WO2013029815A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285815A (en) * | 2015-05-13 | 2017-01-04 | 舍弗勒技术股份两合公司 | Camshaft adjuster |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013019237A1 (en) | 2013-11-15 | 2015-05-21 | Daimler Ag | Camshaft adjuster for an internal combustion engine |
| DE102014209638A1 (en) | 2014-05-21 | 2015-11-26 | Schaeffler Technologies AG & Co. KG | Camshaft adjuster with spring-loaded seal construction |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10335051A1 (en) * | 2002-12-20 | 2004-07-15 | Böckmann-Hannibal, Angela, Dipl.-Ing. (FH) | Variable valve control system for internal combustion engine has segment surface of stator housing and rotor with slight conical rise |
| US20050115526A1 (en) * | 2003-10-28 | 2005-06-02 | Hydraulik-Ring Gmbh | Camshaft Adjusting Device for Vehicles, Especially Motor Vehicles |
| JP2005520084A (en) * | 2002-03-12 | 2005-07-07 | ドクトル インジエニエール ハー ツエー エフ ポルシエ アクチエンゲゼルシヤフト | Drive mechanism for vehicle valve drive control, especially for camshaft adjusters |
| CN101160454A (en) * | 2005-04-15 | 2008-04-09 | 谢夫勒两合公司 | Device for variably adjusting control times of gas exchange valves of an internal combustion engine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19963094B4 (en) | 1999-12-24 | 2014-08-21 | Schaeffler Technologies Gmbh & Co. Kg | Device for changing the timing of gas exchange valves of an internal combustion engine, in particular hydraulic camshaft adjusting device in rotary piston type |
-
2011
- 2011-09-01 DE DE102011081968A patent/DE102011081968A1/en not_active Withdrawn
-
2012
- 2012-05-23 CN CN201280042337.8A patent/CN103958839A/en active Pending
- 2012-05-23 WO PCT/EP2012/059534 patent/WO2013029815A1/en active Application Filing
- 2012-05-23 US US14/233,959 patent/US20140137822A1/en not_active Abandoned
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005520084A (en) * | 2002-03-12 | 2005-07-07 | ドクトル インジエニエール ハー ツエー エフ ポルシエ アクチエンゲゼルシヤフト | Drive mechanism for vehicle valve drive control, especially for camshaft adjusters |
| DE10335051A1 (en) * | 2002-12-20 | 2004-07-15 | Böckmann-Hannibal, Angela, Dipl.-Ing. (FH) | Variable valve control system for internal combustion engine has segment surface of stator housing and rotor with slight conical rise |
| US20050115526A1 (en) * | 2003-10-28 | 2005-06-02 | Hydraulik-Ring Gmbh | Camshaft Adjusting Device for Vehicles, Especially Motor Vehicles |
| CN101160454A (en) * | 2005-04-15 | 2008-04-09 | 谢夫勒两合公司 | Device for variably adjusting control times of gas exchange valves of an internal combustion engine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285815A (en) * | 2015-05-13 | 2017-01-04 | 舍弗勒技术股份两合公司 | Camshaft adjuster |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102011081968A1 (en) | 2013-03-07 |
| WO2013029815A1 (en) | 2013-03-07 |
| US20140137822A1 (en) | 2014-05-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: German Herzogenaurach Applicant after: SCHAEFFLER TECHNOLOGIES AG & CO.KG Address before: German Herzogenaurach Applicant before: SCHAEFFLER TECHNOLOGIES GmbH & Co.KG |
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| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: Free format text: CORRECT: APPLICANT; FROM: SCHAEFFLER TECHNOLOGIES GMBH + CO. KG TO: SCHAEFFLER TECHNOLOGY GMBH + CO. KG |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140730 |
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| RJ01 | Rejection of invention patent application after publication |