CN103270258A - Camshaft adjuster - Google Patents
Camshaft adjuster Download PDFInfo
- Publication number
- CN103270258A CN103270258A CN2011800621730A CN201180062173A CN103270258A CN 103270258 A CN103270258 A CN 103270258A CN 2011800621730 A CN2011800621730 A CN 2011800621730A CN 201180062173 A CN201180062173 A CN 201180062173A CN 103270258 A CN103270258 A CN 103270258A
- Authority
- CN
- China
- Prior art keywords
- rotor
- stator
- driving wheel
- camshaft adjuster
- hydraulic channel
- 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.)
- Granted
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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
Abstract
The invention relates to an arrangement of a camshaft adjuster (1) which has a drive wheel (2), a stator (3), and a rotor (4), hydraulic channels (5) and (14) being formed by contact surfaces (7) of the structural elements which lie on each other axially such as the drive wheel (2), stator (3), and rotor (4), as well as by notches (6).
Description
Technical field
The present invention relates to a kind of camshaft adjuster.
Background technique
Camshaft adjuster is used for changing the valve timing of combustion chamber valve in internal-combustion engine and uses.Valve timing can reduce consumption and discharging with the coupling of working as preload.Common structure type is blade chamber regulator.Blade chamber regulator has stator, rotor and driving wheel.Rotor in most of the cases is connected with camshaft is anti-with relatively rotating.Stator and driving wheel are connected to each other equally, and wherein, rotor is coaxial and be positioned within the stator with stator.Rotor and stator have been moulded oil pocket, and these oil pockets can load and can be implemented in relative movement between stator and the rotor by oil pressure.In addition, blade chamber regulator also has various sealing covers.Constructed being connected of stator, driving wheel and sealing cover by a plurality of bolt connection pieces.
The oil pocket fuel feeding is realized by the hole of a plurality of radial arrangement in the rotor.These holes feed oil pocket on the one hand, and in the wheel hub of rotor, wherein, wheel hub is again by supplying from the oil of camshaft end on the other hand.
Summary of the invention
Task of the present invention is a kind of camshaft adjuster of explanation, and it has the special oily guidance system of making simply.
This task so solves according to the present invention, namely, camshaft adjuster has driving wheel, stator and rotor, wherein, described rotor and described stator structure are used for active chamber and described stator and the anti-so layout of ground that relatively rotates of described driving wheel of rotor and stator two opposition effects in relative rotation, namely, at least two aforementioned components (driving wheel, stator and rotor) axially arrange and utilize with reclining directly that the surface of contact that they form limits common hydraulic channel each other, and described hydraulic channel feeds one of them described active chamber.
In order to construct hydraulic channel, two members shaft are arranged towards each other with reclining.At this, one of them employed member has recess.Recess can be roughly radially extends to first active chamber from the wheel hub of camshaft adjuster, and recess feeds first active chamber.Another uses the counterpart on the member can have plat surface or have recess equally.If two members shaft arrange that towards each other hydraulic channel is configured so with reclining in separating surface.Hydraulic channel is limited by surface of contact, and described surface of contact is arranged in the direct periphery of recess.Surface of contact is with respect to external environment condition sealed hydraulic passage.
This task so solves according to the present invention, namely, camshaft adjuster has driving wheel, stator and rotor, wherein, described rotor and described stator structure are used for active chamber and described stator and the anti-so layout of ground that relatively rotates of described driving wheel of rotor and stator two opposition effects in relative rotation, namely, at least two aforementioned components (driving wheel, stator and rotor) arrange axially each other indirectly with reclining and limit common hydraulic channel that described hydraulic channel feeds one of them described active chamber.
Being used for the employed member of structure hydraulic channel can be driving wheel, stator, rotor, cap, cover cap, pad or cap spare.The axial arranged stratiform structure of making us remembering camshaft adjuster of the member that uses.The hydraulic channel that leads to each active chamber of constructing radially extends as far as possible.For example be used for to expect by other design proposals to the locking device fuel feeding or for other hydraulic channels of exhaust.
These hydraulic channels can be formed by the recess in one of them member.Recess comprises beading, groove, sink, groove, impression or other moulding.If member is engaged with each other, then hydraulic channel is configured to, and it is oil-tightening as far as possible with respect to external environment condition.These passages directly radially extend, and perhaps extend in corresponding the active chamber of attaching troops to a unit from oil-feed (in most of the cases in the wheel hub of camshaft adjuster) as axial orientation and radial oriented combination.According to advantageous manner, be used for constant cross-section ground that hydraulic medium flows through, that is formed by two members and construct.As an alternative, local cross section through special matched be can construct, orifice plate, nozzle or trunnion for example are used for.
In addition, these two members can have recess, and these recess combinations with one another are configured to carry the passage of liquid.Under these two member joint situations, in cross-sectional view, observe two semicircular recess arrangement becomes to see, circular passages of trying one's best of for example trying one's best in cross-sectional view.
According to advantageous manner, be used for the employed member of structure hydraulic channel and be configured to sheet material spare, wherein, at least one member can have recess.By impression, break-through, deep-draw or extrusion without cutting make recess.At this, the wall of recess has constant or variable cross section.
Formed hydraulic channel feeds first active chamber.This carries the connection of liquid to give active chamber supply pressure oil, so that rotor reverses along predominant direction is relative each other with stator.Under the cut-out pressure situation, the oily passage of Chuan Jianing can be used as the exhaust port of oil and air like this, in order to empty first active chamber.
A favourable aspect is to have increased the surface by recess, and wherein, this is conducive to heat conduction.Thus, oil is matched with ambient temperature.Thereby obtain oily stable viscosity, whereby, camshaft adjuster can temperature more stably be worked.
Obtain consolidation effect by structure recess in the sheet material of one of them member that uses.Component stability has improved and material can be saved, and this is conducive to light structures.
In preferred design proposal of the present invention, described rotor has blade, is furnished with breach on the described blade.This breach has been opened the passage that hydraulic oil enters active chamber.According to advantageous manner, breach in rotor, be configured to by sheet material and with form the hydraulic channel of carrying liquid after axial peripheral member engages.Alternative be that described breach also can be arranged near all sides of rotor periphery.
The manufacturing of breach can realize by punching press.It also is feasible being configured to sintered part or watering foundry goods.Additive method is milling, turning, corrosion and other cutting methods.
By arranging targetedly that on blade breach can influence the inflow performance that flows into active chamber and the outflow performance that flows out active chamber.This radial location by breach is determined.Can obtain damping or in active chamber, can keep desired Fuel Oil Remaining at this.
In addition, in design proposal of the present invention, camshaft adjuster has the locking mechanical device, and described locking mechanical device is connected rotor and stator are anti-with relatively rotating.At this, two axial members against each other arrange that so namely, they are configured to hydraulic channel, and described hydraulic channel extends to the locking mechanical device from the wheel hub of camshaft adjuster.
By oily passage being split into two structural elements (these structural elements at first become common oily passage along the directional structure vectorical structure of flowing through to combination with one another), manufacturing process is used simply and quality control is simplified.Reduced the not desired effects that is caused by dirt in addition, described dirt can be removed from groove, beading, recess and breach more like a cork.Thereby the combination that comprises a plurality of parts of fuel feeding feature has obviously improved manufacturing and quality.
Description of drawings
Accompanying drawing illustrates embodiments of the invention.
Fig. 1 is the sectional view that passes camshaft adjuster;
Fig. 2 is the cross-sectional view of Fig. 1 of no rotor;
Fig. 3 is the cross-sectional view with Fig. 1 of rotor;
Fig. 4 is another sectional view that passes camshaft adjuster; And
Fig. 5 is the device with stator, rotor and wheel hub.
Embodiment
Fig. 1 illustrates a kind of camshaft adjuster 1, and it has driving wheel 2, resists the stators 3 that are connected with driving wheel 2 with relatively rotating, and stator 3 is arranged concentrically with rotor 4.Driving wheel 2 and rotor 4 are bearing on the wheel hub 11.But stator 3 and rotor 4 have been constructed the active chamber 9,10 of hydraulic loaded.These active chamber opposition effects are also passed through hydraulic channel 5 supply pressure oil.This hydraulic channel 5 forms by rotor 4 and driving wheel 2.At this, follower 2 has thickness different wall section 2a, 2b.These wall sections 2a, 2b arrange and open or cover delivery line distolateral with rotor 4.
Fig. 2 illustrates the cross-sectional view of Fig. 1.Cancelled that at this rotor 4 being shown, in order to can see hydraulic channel 5.Its thickness of wall section 2a(is greater than wall section 2b) profile in corresponding angular sector, follow the interior profile of stator 3 consistently.This geometrical construction is arranged in for four times in 45 ° the angle at least.Because axially dislocation, the different-thickness formation axial valley by wall section 2a and 2b is used for structure hydraulic channel 5.
Fig. 3 illustrates the cross-sectional view of the Fig. 1 with rotor 4.Rotor 4 is formed in the zone of wall section 2a with the axial surface of contact of driving wheel 2.Because rotor 4 distributes between stator 3 walls and wheel hub 11 with its wall, so rotor 4 is with respect to active chamber 10 seal operation chambeies 9 and only can be implemented to the import of active chamber 10 by the direct hydraulic channel 5 that is limited by rotor 4, stator 3 and driving wheel 2.
Fig. 4 illustrates according to the device of the camshaft adjuster 1 of Fig. 1 and passes the cross section that the angle of hydraulic medium delivery line 16 staggers.Rotor 4 forms hydraulic channel 14 together with breach 6.At this, rotor 4 and driving wheel 2 axially recline each other and are configured to surface of contact 7.Breach 6 and driving wheel 2 form hydraulic channel 14 together.Surface of contact 7 sealed hydraulic passages 14, thereby the restriction position of having kept delivery line.In addition, rotor 4 has locking mechanical device 12.This locking mechanical device 12 utilizes stator 3 at the locking of camshaft adjuster 1 sense of rotation or release rotor 4.The delivery line that is used for the hydraulic oil of operational lock mechanical device 12 can be realized by the structure according to the present invention of hydraulic channel.
Fig. 3 illustrates stator 3 and is arranged in rotor 4 stator 3, coaxial arrangement.Stator 3 and rotor 4 have been constructed the active chamber 9,10 of opposition effect, and they can be loaded pressure oil.Device shown here comes from the camshaft adjuster 1 according to Fig. 1 and Fig. 2.Rotor 4 and stator 3 are arranged on the wheel hub 11.Pressure oil or hydraulic medium distribute from the hydraulic medium delivery line 15 inflow circular grooves 17 of wheel hub 11 and at periphery.In addition, pressure oil is passed on the rotor 4 the blade 8 fixing and connection of single type ground subsequently and flows to breach 6, and breach 6 has been constructed hydraulic channel 14 with unshowned driving wheel 2 herein.Pressure oil or hydraulic medium pass hydraulic channel 14 according to the present invention and are fed in the active chamber 9.Active chamber 10 is supplied by the hydraulic channel 5 among Fig. 1.
Reference numerals list
1) camshaft adjuster
2) driving wheel
2a, 2b) the wall section
3) stator
4) rotor
5) hydraulic channel
6) breach
7) surface of contact
8) blade
9) active chamber
10) active chamber
11) wheel hub
12) locking mechanical device
13) hydraulic channel
14) hydraulic channel
15) hydraulic medium delivery line
16) hydraulic medium delivery line
17) groove
Claims (4)
1. camshaft adjuster (1), it has driving wheel (2), stator (3) and rotor (4), wherein, described rotor (4) and described stator (3) have been constructed and have been used for making rotor (4) and stator (3) two hydraulic work chambeies (9 in relative rotation, 10) and the anti-layout of described stator (3) and described driving wheel (2) with relatively rotating, it is characterized in that, aforementioned components (driving wheel (2), stator (3) and rotor (4)) at least two directly axially arrange each other and with their the common hydraulic channel (5) of surface of contact (7) restriction, described hydraulic channel feeds one of them described active chamber (9 with reclining, 10).
2. camshaft adjuster (1), it has driving wheel (2), stator (3) and rotor (4), wherein, described rotor (4) and described stator (3) have been constructed and have been used for making rotor (4) and stator (3) two hydraulic work chambeies (9 in relative rotation, 10) and the anti-layout of described stator (3) and described driving wheel (2) with relatively rotating, it is characterized in that, aforementioned components (driving wheel (2), stator (3) and rotor (4)) at least two indirect axial layouts and limit common hydraulic channel (5) each other with reclining, described hydraulic channel feeds one of them described active chamber (9,10).
3. camshaft adjuster according to claim 1 and 2 (1), it is characterized in that, described rotor (4) has blade (8), wherein, described blade (8) is separated from one another with described active chamber (9,10), and described blade (8) has breach (6), wherein, described breach (6) has been constructed common hydraulic channel (14) with described driving wheel (2) or described stator (3).
4. camshaft adjuster according to claim 1 and 2 (1), it is characterized in that, described camshaft adjuster (1) has locking mechanical device (12), wherein, described locking mechanical device (12) is connected with wheel hub (11) hydraulic pressure of described camshaft adjuster (1) by another common hydraulic channel (13), wherein, described another common hydraulic channel (13) is limited by the surface of contact (7) of two members in the aforementioned components (driving wheel (2), stator (3) and rotor (4)) at least.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010063700.9 | 2010-12-21 | ||
| DE201010063700 DE102010063700A1 (en) | 2010-12-21 | 2010-12-21 | Nockenellenversteller |
| PCT/EP2011/066506 WO2012084284A1 (en) | 2010-12-21 | 2011-09-22 | Camshaft adjuster |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103270258A true CN103270258A (en) | 2013-08-28 |
| CN103270258B CN103270258B (en) | 2016-08-24 |
Family
ID=44658762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180062173.0A Expired - Fee Related CN103270258B (en) | 2010-12-21 | 2011-09-22 | Camshaft adjuster |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20130269639A1 (en) |
| CN (1) | CN103270258B (en) |
| DE (1) | DE102010063700A1 (en) |
| WO (1) | WO2012084284A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107109971A (en) * | 2015-01-08 | 2017-08-29 | 舍弗勒技术股份两合公司 | Cam axis adjustment device |
| CN107842403A (en) * | 2016-09-19 | 2018-03-27 | 舍弗勒技术股份两合公司 | The camshaft phase modulating system for including sloth wheel gear phase converter for internal combustion engine |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010009393A1 (en) * | 2010-02-26 | 2011-09-01 | Schaeffler Technologies Gmbh & Co. Kg | Device for the variable adjustment of the timing of gas exchange valves of an internal combustion engine |
| DE102013203244A1 (en) * | 2013-02-27 | 2014-08-28 | Schaeffler Technologies Gmbh & Co. Kg | Phaser |
| DE102014209179A1 (en) | 2014-03-20 | 2015-09-24 | Schaeffler Technologies AG & Co. KG | Hydraulic camshaft adjuster, use and method for assembling an at least two-piece rotor of a hydraulic camshaft adjuster |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0799976A1 (en) * | 1996-04-03 | 1997-10-08 | Toyota Jidosha Kabushiki Kaisha | Variable valve timing mechanism for internal combustion engine |
| CN1175661A (en) * | 1996-04-04 | 1998-03-11 | 丰田自动车株式会社 | Variable valve timing mechanism for internal combustion engine |
| EP0892155A1 (en) * | 1997-07-17 | 1999-01-20 | Mitsubishi Denki Kabushiki Kaisha | Hydraulic valve timing adjusting apparatus |
| EP1128026A2 (en) * | 1999-12-28 | 2001-08-29 | Borg Warner Inc. | Multi-position variable cam timing system having a vane-mounted locking piston device |
| US20030033999A1 (en) * | 2001-08-14 | 2003-02-20 | Marty Gardner | Torsional assisted cam phaser for four cylinder engines having two check valves in rotor between chambers and spool valve |
| EP1447529A1 (en) * | 2003-02-07 | 2004-08-18 | BorgWarner Inc. | Phaser with a single recirculation check valve and inlet valve |
| CN1580505A (en) * | 2003-08-08 | 2005-02-16 | 日立优喜雅汽车配件有限公司 | Valve timing control system of IC engine |
| JP2005264950A (en) * | 1993-05-03 | 2005-09-29 | Borgwarner Inc | Method for controlling liquid-pressure fluid flowing from its source to means for conveyance to camshaft |
| DE102005026553B3 (en) * | 2005-06-08 | 2006-09-07 | Hydraulik-Ring Gmbh | Reduced-leakage adjuster for camshaft has a rotor consisting of at least cover and core, forming covered channel sector parallel to one side when in contact |
| DE102007020526A1 (en) * | 2007-05-02 | 2008-11-06 | Schaeffler Kg | Camshaft adjuster for an internal combustion engine with improved design of the pressure chambers |
| EP2072767A2 (en) * | 2007-12-20 | 2009-06-24 | Aisin Seiki Kabushiki Kaisha | Valve timing control apparatus |
| DE102008050134A1 (en) * | 2008-10-04 | 2010-04-15 | Entec Consulting Gmbh | Camshaft adjusting device for internal combustion engine of motor vehicle, has recesses for supplying oil to connecting elements and provided in hollow shape of camshaft, and attachments guided in hollow end of camshaft through recesses |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3211713B2 (en) * | 1996-04-04 | 2001-09-25 | トヨタ自動車株式会社 | Variable valve timing mechanism for internal combustion engine |
| DE102004028868A1 (en) * | 2004-06-15 | 2006-01-05 | Ina-Schaeffler Kg | Internal combustion engine with a hydraulic device for adjusting the rotational angle of a camshaft relative to a crankshaft |
| DE102006004760A1 (en) * | 2006-02-02 | 2007-10-11 | Schaeffler Kg | Hydraulic camshaft adjuster |
-
2010
- 2010-12-21 DE DE201010063700 patent/DE102010063700A1/en not_active Withdrawn
-
2011
- 2011-09-22 US US13/994,863 patent/US20130269639A1/en not_active Abandoned
- 2011-09-22 WO PCT/EP2011/066506 patent/WO2012084284A1/en active Application Filing
- 2011-09-22 CN CN201180062173.0A patent/CN103270258B/en not_active Expired - Fee Related
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005264950A (en) * | 1993-05-03 | 2005-09-29 | Borgwarner Inc | Method for controlling liquid-pressure fluid flowing from its source to means for conveyance to camshaft |
| EP0799976A1 (en) * | 1996-04-03 | 1997-10-08 | Toyota Jidosha Kabushiki Kaisha | Variable valve timing mechanism for internal combustion engine |
| CN1175661A (en) * | 1996-04-04 | 1998-03-11 | 丰田自动车株式会社 | Variable valve timing mechanism for internal combustion engine |
| EP0892155A1 (en) * | 1997-07-17 | 1999-01-20 | Mitsubishi Denki Kabushiki Kaisha | Hydraulic valve timing adjusting apparatus |
| EP1128026A2 (en) * | 1999-12-28 | 2001-08-29 | Borg Warner Inc. | Multi-position variable cam timing system having a vane-mounted locking piston device |
| US20030033999A1 (en) * | 2001-08-14 | 2003-02-20 | Marty Gardner | Torsional assisted cam phaser for four cylinder engines having two check valves in rotor between chambers and spool valve |
| EP1447529A1 (en) * | 2003-02-07 | 2004-08-18 | BorgWarner Inc. | Phaser with a single recirculation check valve and inlet valve |
| CN1580505A (en) * | 2003-08-08 | 2005-02-16 | 日立优喜雅汽车配件有限公司 | Valve timing control system of IC engine |
| DE102005026553B3 (en) * | 2005-06-08 | 2006-09-07 | Hydraulik-Ring Gmbh | Reduced-leakage adjuster for camshaft has a rotor consisting of at least cover and core, forming covered channel sector parallel to one side when in contact |
| DE102007020526A1 (en) * | 2007-05-02 | 2008-11-06 | Schaeffler Kg | Camshaft adjuster for an internal combustion engine with improved design of the pressure chambers |
| EP2072767A2 (en) * | 2007-12-20 | 2009-06-24 | Aisin Seiki Kabushiki Kaisha | Valve timing control apparatus |
| DE102008050134A1 (en) * | 2008-10-04 | 2010-04-15 | Entec Consulting Gmbh | Camshaft adjusting device for internal combustion engine of motor vehicle, has recesses for supplying oil to connecting elements and provided in hollow shape of camshaft, and attachments guided in hollow end of camshaft through recesses |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107109971A (en) * | 2015-01-08 | 2017-08-29 | 舍弗勒技术股份两合公司 | Cam axis adjustment device |
| CN107109971B (en) * | 2015-01-08 | 2019-09-13 | 舍弗勒技术股份两合公司 | Cam axis adjustment device |
| CN107842403A (en) * | 2016-09-19 | 2018-03-27 | 舍弗勒技术股份两合公司 | The camshaft phase modulating system for including sloth wheel gear phase converter for internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102010063700A1 (en) | 2012-06-21 |
| WO2012084284A1 (en) | 2012-06-28 |
| US20130269639A1 (en) | 2013-10-17 |
| CN103270258B (en) | 2016-08-24 |
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Granted publication date: 20160824 Termination date: 20190922 |