WO2011098331A1 - Flügelrad einer vorrichtung zur variablen einstellung der steuerzeiten von gaswechselventilen einer brennkraftmaschine - Google Patents
Flügelrad einer vorrichtung zur variablen einstellung der steuerzeiten von gaswechselventilen einer brennkraftmaschine Download PDFInfo
- Publication number
- WO2011098331A1 WO2011098331A1 PCT/EP2011/050751 EP2011050751W WO2011098331A1 WO 2011098331 A1 WO2011098331 A1 WO 2011098331A1 EP 2011050751 W EP2011050751 W EP 2011050751W WO 2011098331 A1 WO2011098331 A1 WO 2011098331A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- impeller
- sub
- elements
- hub member
- gas exchange
- Prior art date
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
- 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
- F01L2303/00—Manufacturing of components used in valve arrangements
Definitions
- the invention relates to an impeller of a device for variably adjusting the timing of gas exchange valves of an internal combustion engine with a substantially cylindrical hub member and at least one wing extending radially outwardly from the hub member, wherein at least the hub member made of a non-metallic material - is.
- devices for the variable adjustment of the timing of gas exchange valves are used to adjust the phase relation between crankshaft and camshaft in a defined angular range, between a maximum early and a maximum late position variable.
- the device is integrated into a drive train via which torque is transmitted from the crankshaft to the camshaft.
- This drive train can be realized for example as a belt, chain or gear drive.
- the device is rotatably connected to a camshaft and has one or more pressure chambers, by means of which the phase relation between the crankshaft and the camshaft can be selectively changed.
- Such a device is known for example from DE 10 2007 041 552 A1.
- the device comprises a cellular wheel, an impeller and two side covers, wherein the cellular wheel is in driving connection with a crankshaft and the impeller is rotatably mounted on a camshaft.
- the impeller is arranged in a defined angular interval pivotally to the cell wheel.
- the side covers are arranged on the axial side surfaces of the impeller and the cellular wheel and rotatably connected by screws with the cellular wheel.
- the impeller consists of a substantially cylindrical hub member and a plurality of separate blades.
- the vanes are disposed in vane grooves formed on the cylindrical outer circumferential surface of the hub member and extend radially outward.
- In the hub member a plurality of axially extending cavities are formed, which are open at both axial side surfaces of the hub member.
- the bucket wheel, impeller and side covers define several pressure chambers.
- Each of the pressure chambers is divided by one of the wings into opposing pressure chambers, which form a hydraulic actuator, by means of which the phase angle between the impeller and the cellular wheel can be variably adjusted.
- the pressure medium supply to or pressure fluid removal from the pressure chambers via pressure medium channels, which are formed in the hub member pressure medium channels.
- the pressure medium channels communicate on the one hand with a central opening of the impeller and on the other hand with the pressure chambers.
- the pressure medium channels are formed as bores, which are introduced after the molding process of the hub member in this.
- pressure medium channels are formed as radially extending grooves on the axial side surfaces of the impeller.
- the present invention has for its object to provide a cost and weight-optimized impeller of a device for variable adjustment of the timing of gas exchange valves of an internal combustion engine.
- the impeller consists of at least two sub-elements which face each other in the direction of an axis of rotation of the impeller and abut each other, wherein the sub-elements are interconnected and formed at least at one of the abutting side surfaces of the sub-elements at least one recesses is.
- the impeller has a substantially cylindrical hub member and at least one wing extending radially outwardly from an outer cylindrical surface of the hub member.
- the wing may for example be made in one piece with the hub member.
- the wing may be made separately from and connected to the hub member, for example plugged into a groove formed on the hub member.
- At least the hub member is made of a non-metallic material, for example a plastic, whereby the weight of the impeller is reduced compared to metallic impellers.
- the wing can also consist of a non-metallic material.
- the impeller consists of at least two sub-elements, which face each other in the direction of an axis of rotation of the impeller and abut each other.
- the parting plane of the sub-elements of the axis of rotation of the impeller for example, be pierced vertically, so that an axial side surface of a sub-element abuts an axial side surface of another sub-element.
- the sub-elements are, for example, by means of an adhesive bond or a welded joint (eg by means of ultrasonic welding) or form or non-positively, together prevented.
- at least at one of the abutting side surfaces of the sub-elements at least one recess is formed.
- the recesses can already be produced during the shaping process. For example, these can be taken into account in the injection mold of an injection molding tool.
- the recess of a partial element is closed off in the axial direction by a further partial element.
- the recess may be formed, for example, blind hole-shaped.
- an outwardly closed cavity is realized in the impeller, so that the weight and the material required for the production of the impeller fall.
- the recess may be formed as a groove which extends radially outwardly from a central opening of the impeller and opens into a region adjacent to the vanes in the circumferential direction, for example a pressure chamber.
- the grooves are in turn covered by a further sub-element in the axial direction.
- the grooves can thus be used as pressure medium channels for supplying pressure medium to or removal of pressure medium from the pressure chambers. This design of the pressure medium channels, these are arranged within the impeller without costly post-processing steps, such as drilling the pressure fluid channels, are necessary.
- FIG. 1 shows very schematically an internal combustion engine
- Figure 2 shows a device for variable adjustment of the timing of
- FIG. 3 shows a perspective view of the impeller from FIG. 2,
- FIG. 4 shows a partial element of the impeller from FIG. 3 in a plan view
- FIG. 5 is a perspective view of the sub-element of Figure 4. Detailed Description of the Drawings
- FIG. 1 schematically shows an internal combustion engine 1 is sketched, wherein a seated on a crankshaft 2 piston 3 is indicated in a cylinder 4.
- the crankshaft 2 is in the illustrated embodiment via a respective Switzerlandmit- teltrieb 5 with an intake camshaft 6 and exhaust camshaft 7 in combination, wherein a first and a second device 1 1 for variably setting the timing of gas exchange valves 9, 10 for a relative rotation between the crankshaft 2 and the camshafts 6, 7 can provide.
- Cams 8 of the camshafts 6, 7 actuate one or more intake gas exchange valves 9 or one or more exhaust gas exchange valves 10.
- FIG. 2 shows a device 1 1 according to the invention in a plan view along a rotation axis 33 of the device 11.
- the device 11 has a cell lenrad 14, an impeller 15 and two side cover 16 on.
- the side covers are arranged on axial side surfaces of the cellular wheel 14 and secured by screws 12 thereto.
- the impeller 15 is made of a suitable plastic and has a substantially cylindrically designed hub member 17, from whose outer cylindrical lateral surface five wings 18 extend in the radial direction to the outside. In the illustrated embodiment, the wings 18 are formed integrally with the hub member 17.
- the vanes 18 are formed separately from the hub element 17 and are arranged in vane grooves which are formed on the cylindrical jacket surface of the hub element 17.
- the wings 18 may also be made of plastic.
- the projections 20 extend radially inwardly.
- the projections 20 are formed integrally with the peripheral wall 19.
- the cellular wheel 14 is rotatably mounted on the latter by means of radially inner circumferential walls of the projections 20 relative to the impeller 15.
- a likewise not shown sprocket is formed, via the means of the traction drive 5 torque from the crankshaft 2 can be transferred to the feeder 14.
- the impeller 15 is rotatably connected to the camshaft 6, 7 in the mounted state.
- the impeller 15 has a central opening 13 which is penetrated by a central screw, not shown, which is bolted to the camshaft 6,7.
- a pressure chamber 21 is formed between each two circumferentially adjacent projections 20.
- Each of the pressure chambers 21 is circumferentially formed by adjacent projections 20, in the axial direction of the side covers 16, radially inwardly of the hub member 17 and bounded radially outward by the peripheral wall 19.
- In each of the pressure chambers 21 protrudes a wing 18, wherein the wings 18 bear against both the side covers 16, and on the peripheral wall 19.
- Each vane 18 thus divides the respective pressure chamber 21 into two oppositely acting pressure chambers 22, 23.
- phase angle of the impeller 15 to the cell wheel 14 and thus the phase angle of the camshaft 6, 7 to the crankshaft 2 can be varied.
- phase position can be kept constant.
- the impeller 15 has a blind hole-like receptacle 31, which is formed open on an axial side surface of the impeller.
- an axially displaceable locking pin 32 is received, which is acted upon in the direction of the side cover, not shown, by a spring with a force.
- the side cover, not shown, has a gate into which the locking pin 32 can engage when facing the backdrop in the axial direction.
- the impeller 15 consists of two sub-elements 24 ( Figure 3), which along a parting plane which is perpendicular to the axis of rotation 33 of the device 1 1 and the impeller 15 in the illustrated embodiment, and abut each other.
- the two sub-elements 24 are fastened to each other by means of an adhesive bond.
- First recesses 26 are formed as radially extending grooves 27.
- the grooves 27 extend from an annular channel 28 formed in the central opening 13 to an opening on the outer cylindrical surface of the hub element. 17.
- the grooves 27 extend simultaneously into the area of the wings 18.
- the grooves 27 thus communicate with a region adjacent to the vanes 18 in the circumferential direction, the pressure chambers 22, 23.
- Both subelements 24 are identical with respect to the grooves 27, so that after their assembly, the grooves 27 of the one subelement 24 from a region of the side surface 25 of the other sub-element 24 are closed in the axial direction.
- the grooves 27 serve as pressure medium channels, via which the pressure chambers 22, 23 pressure medium from the annular channels 28 supplied or pressure medium from the pressure chambers 22, 23 can be discharged to the annular channels 28.
- the formation of the pressure medium channels as grooves 27 in the sub-elements 24 ensures that the pressure medium channels are not formed on an axial side surface of the impeller 15.
- the grooves 27 can be formed during the molding process of the sub-elements 24, for example, an injection molding process without additional effort. Thus, no additional machining post-processing steps, such as drilling the pressure fluid channels, necessary.
- second recesses 26 are provided on the abutting side surfaces 25 of the sub-elements, which are formed as blind holes 29.
- the single opening of the blind holes 29 lies in the joining plane of the two sub-elements 24.
- the blind holes 29 can also be formed during the molding process of the sub-elements 24.
- the sealing effect between the side covers 16 and the hub element 17 increases due to the smooth side surfaces of the impeller 15, so that the leakage from the pressure chambers 22, 23 to the central opening 13 reduced.
- Each of the sub-elements 24 has, in addition to the structures described, form-fitting elements 30, which are formed in the wing 18.
- a pin is formed on each of two wings 18 and an opening adapted to the pin on two further wings 18. During the joining of the sub-elements 24, the pins engage in the corresponding opening, so that the sub-elements 24 are automatically positioned relative to each other.
- the two sub-elements 24 are identical, so that only one injection mold is needed for their production.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Enzymes And Modification Thereof (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11701238A EP2536926A1 (de) | 2010-02-15 | 2011-01-20 | Flügelrad einer vorrichtung zur variablen einstellung der steuerzeiten von gaswechselventilen einer brennkraftmaschine |
CN2011800096066A CN102762820A (zh) | 2010-02-15 | 2011-01-20 | 用于可变调整内燃机换气气门的控制时间的设备的叶轮 |
US13/576,048 US8752517B2 (en) | 2010-02-15 | 2011-01-20 | Impeller of a device for variable adjustment of the control times of gas exchange valves of an internal combustion engine |
BR112012020357A BR112012020357A2 (pt) | 2010-02-15 | 2011-01-20 | roda de palhetas de um dispositivo para o ajuste varíavel dos tempos de controle de válvulas de troca de gás de um motor de combustão interna. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010008006.3 | 2010-02-15 | ||
DE102010008006A DE102010008006A1 (de) | 2010-02-15 | 2010-02-15 | Flügelrad einer Vorrichtung zur variablen Einstellung der Steuerzeiten von Gaswechselventilen einer Brennkraftmaschine |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011098331A1 true WO2011098331A1 (de) | 2011-08-18 |
Family
ID=43598294
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2011/050751 WO2011098331A1 (de) | 2010-02-15 | 2011-01-20 | Flügelrad einer vorrichtung zur variablen einstellung der steuerzeiten von gaswechselventilen einer brennkraftmaschine |
Country Status (6)
Country | Link |
---|---|
US (1) | US8752517B2 (de) |
EP (1) | EP2536926A1 (de) |
CN (1) | CN102762820A (de) |
BR (1) | BR112012020357A2 (de) |
DE (1) | DE102010008006A1 (de) |
WO (1) | WO2011098331A1 (de) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015028004A1 (de) * | 2013-08-27 | 2015-03-05 | Schaeffler Technologies Gmbh & Co. Kg | Mehrteiliger rotor für einen hydraulischen nockenwellenversteller mit ölversorgung der druckkammern durch die flügel |
DE102013217145A1 (de) | 2013-08-28 | 2015-03-05 | Schaeffler Technologies Gmbh & Co. Kg | Nockenwellenversteller |
WO2015039745A3 (de) * | 2013-09-23 | 2015-07-16 | Gkn Sinter Metals Engineering Gmbh | Rotor für einen nockenwellenversteller, teileset zur herstellung eines rotors für einen nockenwellenversteller sowie verfahren zur herstellung eines gefügten bauteils, bevorzugt eines rotors für einen nockenwellenversteller |
WO2015172779A1 (de) * | 2014-05-15 | 2015-11-19 | Schaeffler Technologies AG & Co. KG | Hydraulischer nockenwellenversteller, verwendung eines zumindest zweiteiligen rotors sowie verfahren zum betrieb eines hydraulischen nockenwellenverstellers |
WO2016029909A1 (de) * | 2014-08-25 | 2016-03-03 | Schaeffler Technologies AG & Co. KG | Rotor für einen hydraulischen nockenwellenversteller sowie herstellungsverfahren eines rotors für einen nockenwellenverstellers |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011117856A1 (de) * | 2011-11-08 | 2013-05-08 | Gkn Sinter Metals Holding Gmbh | Mehrteilige, gefügte Rotoren in hydraulischen Nockenwellenverstellern mit Fügedichtprofilen und Verfahren zur Herstellung der Rotoren |
DE102013202069A1 (de) | 2013-02-08 | 2014-08-14 | Schaeffler Technologies Gmbh & Co. Kg | Stützscheibe für Patrone bei einem in einer Mittenposition verriegelbaren, hydraulischen Nockenwellenversteller des Flügelzellentyps |
DE102013107434B4 (de) * | 2013-07-05 | 2017-07-27 | Hilite Germany Gmbh | Rotor für einen Nockenwellenversteller mit verbesserter Geometrie |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5836277A (en) | 1996-12-24 | 1998-11-17 | Aisin Seiki Kabushiki Kaisha | Valve timing control device |
DE10134320A1 (de) | 2001-07-14 | 2003-01-23 | Ina Schaeffler Kg | Vorrichtung zum Verändern der Steuerzeiten von Gaswechselventilen einer Brennkraftmaschine, insbesondere Rotationskolben-Verstelleinrichtung zur Drehwinkelverstellung einer Nockenwelle gegenüber einer Kurbelwelle |
WO2003076771A1 (de) * | 2002-03-12 | 2003-09-18 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Antrieb für ventiltriebsteuerungen von fahrzeugen, vorzugsweise von nockenwellenversteller |
DE102005026553B3 (de) * | 2005-06-08 | 2006-09-07 | Hydraulik-Ring Gmbh | Schwenkmotor mit verringerter Leckage |
DE102006019607A1 (de) * | 2006-04-25 | 2007-10-31 | Hydraulik-Ring Gmbh | Nockenwellenversteller |
EP1865158A2 (de) * | 2006-05-11 | 2007-12-12 | Hydraulik-Ring Gmbh | Leckagedichter Nockenwellenversteller mit Rückstellfeder |
DE102007041552A1 (de) | 2007-08-31 | 2009-03-05 | Schaeffler Kg | Vorrichtung zur variablen Einstellung der Steuerzeiten von Gaswechselventilen einer Brennkraftmaschine |
DE102008023151A1 (de) * | 2007-08-29 | 2009-03-05 | Bayerische Motoren Werke Aktiengesellschaft | Stelleinrichtung zur relativen Winkelverstellung |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE565690A (de) | 1953-01-02 | |||
DE102008028640A1 (de) * | 2008-06-18 | 2009-12-24 | Gkn Sinter Metals Holding Gmbh | Hydraulischer Nockenwellenversteller |
-
2010
- 2010-02-15 DE DE102010008006A patent/DE102010008006A1/de not_active Withdrawn
-
2011
- 2011-01-20 EP EP11701238A patent/EP2536926A1/de not_active Withdrawn
- 2011-01-20 CN CN2011800096066A patent/CN102762820A/zh active Pending
- 2011-01-20 BR BR112012020357A patent/BR112012020357A2/pt not_active IP Right Cessation
- 2011-01-20 US US13/576,048 patent/US8752517B2/en not_active Expired - Fee Related
- 2011-01-20 WO PCT/EP2011/050751 patent/WO2011098331A1/de active Application Filing
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5836277A (en) | 1996-12-24 | 1998-11-17 | Aisin Seiki Kabushiki Kaisha | Valve timing control device |
DE10134320A1 (de) | 2001-07-14 | 2003-01-23 | Ina Schaeffler Kg | Vorrichtung zum Verändern der Steuerzeiten von Gaswechselventilen einer Brennkraftmaschine, insbesondere Rotationskolben-Verstelleinrichtung zur Drehwinkelverstellung einer Nockenwelle gegenüber einer Kurbelwelle |
WO2003076771A1 (de) * | 2002-03-12 | 2003-09-18 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Antrieb für ventiltriebsteuerungen von fahrzeugen, vorzugsweise von nockenwellenversteller |
DE102005026553B3 (de) * | 2005-06-08 | 2006-09-07 | Hydraulik-Ring Gmbh | Schwenkmotor mit verringerter Leckage |
DE102006019607A1 (de) * | 2006-04-25 | 2007-10-31 | Hydraulik-Ring Gmbh | Nockenwellenversteller |
EP1865158A2 (de) * | 2006-05-11 | 2007-12-12 | Hydraulik-Ring Gmbh | Leckagedichter Nockenwellenversteller mit Rückstellfeder |
DE102008023151A1 (de) * | 2007-08-29 | 2009-03-05 | Bayerische Motoren Werke Aktiengesellschaft | Stelleinrichtung zur relativen Winkelverstellung |
DE102007041552A1 (de) | 2007-08-31 | 2009-03-05 | Schaeffler Kg | Vorrichtung zur variablen Einstellung der Steuerzeiten von Gaswechselventilen einer Brennkraftmaschine |
Non-Patent Citations (1)
Title |
---|
See also references of EP2536926A1 * |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015028004A1 (de) * | 2013-08-27 | 2015-03-05 | Schaeffler Technologies Gmbh & Co. Kg | Mehrteiliger rotor für einen hydraulischen nockenwellenversteller mit ölversorgung der druckkammern durch die flügel |
US10174644B2 (en) | 2013-08-27 | 2019-01-08 | Schaeffler Technologies AG & Co. KG | Multipart rotor for a hydraulic camshaft adjuster with a supply of oil to the pressure chambers through the vanes |
DE102013217145A1 (de) | 2013-08-28 | 2015-03-05 | Schaeffler Technologies Gmbh & Co. Kg | Nockenwellenversteller |
WO2015039745A3 (de) * | 2013-09-23 | 2015-07-16 | Gkn Sinter Metals Engineering Gmbh | Rotor für einen nockenwellenversteller, teileset zur herstellung eines rotors für einen nockenwellenversteller sowie verfahren zur herstellung eines gefügten bauteils, bevorzugt eines rotors für einen nockenwellenversteller |
WO2015172779A1 (de) * | 2014-05-15 | 2015-11-19 | Schaeffler Technologies AG & Co. KG | Hydraulischer nockenwellenversteller, verwendung eines zumindest zweiteiligen rotors sowie verfahren zum betrieb eines hydraulischen nockenwellenverstellers |
WO2016029909A1 (de) * | 2014-08-25 | 2016-03-03 | Schaeffler Technologies AG & Co. KG | Rotor für einen hydraulischen nockenwellenversteller sowie herstellungsverfahren eines rotors für einen nockenwellenverstellers |
US10267188B2 (en) | 2014-08-25 | 2019-04-23 | Schaeffler Technologies AG & Co. KG | Rotor for a hydraulic camshaft adjuster and manufacturing method for a rotor for a camshaft adjuster |
Also Published As
Publication number | Publication date |
---|---|
CN102762820A (zh) | 2012-10-31 |
DE102010008006A1 (de) | 2011-08-18 |
US8752517B2 (en) | 2014-06-17 |
BR112012020357A2 (pt) | 2016-05-10 |
US20120298060A1 (en) | 2012-11-29 |
EP2536926A1 (de) | 2012-12-26 |
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