EP1136658A2 - Vorrichtung zur Verstellung einer Nockenwelle - Google Patents
Vorrichtung zur Verstellung einer Nockenwelle Download PDFInfo
- Publication number
- EP1136658A2 EP1136658A2 EP01890071A EP01890071A EP1136658A2 EP 1136658 A2 EP1136658 A2 EP 1136658A2 EP 01890071 A EP01890071 A EP 01890071A EP 01890071 A EP01890071 A EP 01890071A EP 1136658 A2 EP1136658 A2 EP 1136658A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- camshaft
- drive wheel
- planet
- electric motor
- ring gear
- 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.)
- Withdrawn
Links
Images
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
- F01L1/352—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 bevel or epicyclic gear
Definitions
- the invention relates to a device for adjusting a camshaft Internal combustion engine with at least one electric motor, the adjustment of the camshaft relative to a drive wheel via a gear causes, the transmission has a planet carrier on which at least one planet gear is provided which is driven by an electric motor is.
- EP 903 471 A describes a device for adjusting the camshaft Internal combustion engine known. The aim is to make the device smaller and more compact to be able to perform and minimize the problem of backlash.
- the US 4,517,934 A shows a device for adjusting the camshaft, at which is arranged on a drive wheel, an electric motor via a gear communicates with the camshaft.
- the electric motor is made using slip rings powered.
- Such a device is complex and the occurrence of mass forces is difficult to avoid even with careful construction become.
- DE 40 40 486 A also discloses a camshaft adjusting device a gearbox that adjusts the camshaft in relation to the drive wheel causes.
- this transmission is axially movable rod adjusted and in another variant a hydraulic working machine which is provided in the drive wheel.
- the devices which are described in this document are extremely expensive and prone to failure.
- No. 5,156,119 A also shows a device for changing the valve timing, in which friction wheels are arranged in a drive wheel, with are connected to a gear arrangement that causes an adjustment movement. By pressing a pair of friction disks against the friction wheels a change in valve timing can be achieved.
- the object of the present invention is to be as simple and robust as possible To create device with which an adjustment of the camshaft in relation to the drive wheel is possible.
- An electrical adjustment is to be provided be that has the lowest possible power consumption.
- the variable speed gear should preferably be self-locking in order to be in stationary operation without Power consumption.
- the Device can be made extremely compact.
- a particularly large gear ratio with minimal backlash results when the planet gears are designed as worm gears and if the ring gear has helical teeth having.
- each worm wheel by two opposing electric motors is driven. In this way, a particularly compact design can be achieved.
- a structurally particularly favorable solution is given by the fact that the drive wheel is directly connected to the ring gear. It is preferably the drive wheel integrally formed with the ring gear. The device can thereby run particularly compact.
- camshaft with the ring gear in Connection is established and that the drive wheel is connected to the planet carrier stands.
- the camshaft adjustment device of the invention is generally composed of one Drive wheel 10 together, which is designed as a toothed belt pulley or sprocket can be and a camshaft 11, on the cam 13 for actuation Not shown intake and exhaust valves of the internal combustion engine are driving via a gear 12.
- the drive wheel 10 is at the same time as Ring gear 1 formed, which has a helical toothing 5 with three Worm wheels 4 is engaged.
- a planet carrier 2 With the camshaft 11 is a planet carrier 2 firmly connected, which carries six electric motors 3, each in pairs are arranged on a common axis 3a with a worm wheel 4 and drive this via drive shafts 6.
- the electric motors 3 are over schematically shown slip rings 7 supplied with power to the adjustment movement to effect.
- the drive wheel 10 is via a bearing 8 on the camshaft 11 stored and secured by a screw 9. Another screw 14 secures the tight fit of the planet carrier 2 on the camshaft 11.
- the particular advantage of the device according to the invention is that the distribution of the actuation torque over several electric motors 3 and due to the large gear ratio, which is achieved through the use of a ring gear 1 can be reached with a correspondingly large diameter, the load on the individual electric motors 3 is very low. This way you can easily and an inexpensive way to adjust the camshaft can be achieved. Next of fuel saving and emissions reduction through optimization the internal combustion engine itself is possible, further fuel savings caused by the low adjustment energy caused by the invention Device is possible.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Gear Transmission (AREA)
Abstract
Description
- Fig. 1
- einen teilweisen Längsschnitt der erfindungsgemäßen Vorrichtung und die
- Fig. 2
- einen Schnitt nach Linie II - II in Fig. 1.
Claims (7)
- Vorrichtung zur Verstellung einer Nockenwelle einer Brennkraftmaschine mit innerer Verbrennung mit mindestens einem Elektromotor (3), der über ein Getriebe (12) die Verstellung der Nockenwelle (11) gegenüber einem Antriebsrad (10) bewirkt, wobei das Getriebe (12) einen Planetenträger (2) aufweist, auf dem mindestens ein Planetenrad (4) vorgesehen ist, das von einem Elektromotor (3) angetrieben ist, dadurch gekennzeichnet , dass mehrere Planetenräder (4) vorgesehen sind, die mit einem Hohlrad (1) im Eingriff stehen und dass jedem Planetenrad (4) ein Elektromotor (3) zugeordnet ist, der dieses über eine gemeinsame Welle (6) antreibt.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Planetenräder (4) als Schneckenräder ausgebildet sind und dass das Hohlrad (1) eine Schrägverzahnung aufweist.
- Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass jedes Schneckenrad (4) durch zwei einander gegenüberliegende Elektromotoren (3) angetrieben ist.
- Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Elektromotoren (3) über Schleifringe (7) mit Strom versorgt werden.
- Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das Antriebsrad (10) direkt mit dem Hohlrad (1) verbunden ist.
- Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass das Antriebsrad (10) einstückig mit dem Hohlrad (1) ausgebildet ist.
- Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Nockenwelle mit dem Hohlrad (1) in Verbindung steht und dass das Antriebsrad (10) mit dem Planetenträger in Verbindung steht.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT3902000 | 2000-03-09 | ||
AT0039000A AT408897B (de) | 2000-03-09 | 2000-03-09 | Vorrichtung zur verstellung einer nockenwelle |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1136658A2 true EP1136658A2 (de) | 2001-09-26 |
EP1136658A3 EP1136658A3 (de) | 2001-12-19 |
Family
ID=3673317
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01890071A Withdrawn EP1136658A3 (de) | 2000-03-09 | 2001-03-08 | Vorrichtung zur Verstellung einer Nockenwelle |
Country Status (4)
Country | Link |
---|---|
US (1) | US20010020461A1 (de) |
EP (1) | EP1136658A3 (de) |
JP (1) | JP2001280107A (de) |
AT (1) | AT408897B (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2025883A1 (de) * | 2007-07-30 | 2009-02-18 | Delphi Technologies, Inc. | Elektromechanischer Nockenwellenversteller mit einem Schneckenantrieb mit einem hypoiden Antriebsaktuaotor |
CN112833173A (zh) * | 2021-03-04 | 2021-05-25 | 常州新联铸业有限公司 | 基于风力发电机用的行星架及其使用方法 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6622677B2 (en) * | 2002-02-22 | 2003-09-23 | Borgwarner Inc. | Worm gear driven variable cam phaser |
DE102005018957A1 (de) * | 2005-04-23 | 2006-11-23 | Schaeffler Kg | Vorrichtung zur variablen Einstellung der Steuerzeiten von Gaswechselventilen einer Brennkraftmaschine |
JP6676397B2 (ja) * | 2016-02-08 | 2020-04-08 | 株式会社ミクニ | 位相変更ユニット及びバルブタイミング変更装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4517934A (en) | 1979-07-26 | 1985-05-21 | Volkswagenwerk Aktiengesellschaft | Controllable camshaft for a drive, preferably an internal combustion engine |
DE4040486A1 (de) | 1990-06-22 | 1992-01-02 | Schrick Gmbh Dr | Vorrichtung bei verbrennungsmotoren zur drehung der nockenwelle relativ zum nockenwellenantriebsrad |
US5156119A (en) | 1990-07-31 | 1992-10-20 | Atsugi Unisia Corp. | Valve timing control apparatus |
EP0903471A1 (de) | 1997-09-19 | 1999-03-24 | TCG UNITECH Aktiengesellschaft | Vorrichtung zur verstellung der nockenwelle einer brennkraftmaschine mit innerer verbrennung |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3830382C1 (de) * | 1988-09-07 | 1990-01-18 | Daimler-Benz Aktiengesellschaft, 7000 Stuttgart, De | |
JP3837725B2 (ja) * | 1997-03-31 | 2006-10-25 | マツダ株式会社 | 回転位相制御装置 |
-
2000
- 2000-03-09 AT AT0039000A patent/AT408897B/de not_active IP Right Cessation
-
2001
- 2001-03-08 EP EP01890071A patent/EP1136658A3/de not_active Withdrawn
- 2001-03-08 JP JP2001064157A patent/JP2001280107A/ja active Pending
- 2001-03-09 US US09/801,829 patent/US20010020461A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4517934A (en) | 1979-07-26 | 1985-05-21 | Volkswagenwerk Aktiengesellschaft | Controllable camshaft for a drive, preferably an internal combustion engine |
DE4040486A1 (de) | 1990-06-22 | 1992-01-02 | Schrick Gmbh Dr | Vorrichtung bei verbrennungsmotoren zur drehung der nockenwelle relativ zum nockenwellenantriebsrad |
US5156119A (en) | 1990-07-31 | 1992-10-20 | Atsugi Unisia Corp. | Valve timing control apparatus |
EP0903471A1 (de) | 1997-09-19 | 1999-03-24 | TCG UNITECH Aktiengesellschaft | Vorrichtung zur verstellung der nockenwelle einer brennkraftmaschine mit innerer verbrennung |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2025883A1 (de) * | 2007-07-30 | 2009-02-18 | Delphi Technologies, Inc. | Elektromechanischer Nockenwellenversteller mit einem Schneckenantrieb mit einem hypoiden Antriebsaktuaotor |
US7562645B2 (en) | 2007-07-30 | 2009-07-21 | Delphi Technologies, Inc. | Electromechanical camshaft phaser having a worm gear drive with a hypoid gear actuator |
CN112833173A (zh) * | 2021-03-04 | 2021-05-25 | 常州新联铸业有限公司 | 基于风力发电机用的行星架及其使用方法 |
Also Published As
Publication number | Publication date |
---|---|
EP1136658A3 (de) | 2001-12-19 |
ATA3902000A (de) | 2001-08-15 |
US20010020461A1 (en) | 2001-09-13 |
AT408897B (de) | 2002-03-25 |
JP2001280107A (ja) | 2001-10-10 |
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