DE102008006198A1 - Rotary piston displacement device for rotary angle adjustment of camshaft opposite crankshaft, has drive gear driven by crankshaft, where another light metal drive gear is connected with camshaft in torque proof manner - Google Patents
Rotary piston displacement device for rotary angle adjustment of camshaft opposite crankshaft, has drive gear driven by crankshaft, where another light metal drive gear is connected with camshaft in torque proof manner Download PDFInfo
- Publication number
- DE102008006198A1 DE102008006198A1 DE102008006198A DE102008006198A DE102008006198A1 DE 102008006198 A1 DE102008006198 A1 DE 102008006198A1 DE 102008006198 A DE102008006198 A DE 102008006198A DE 102008006198 A DE102008006198 A DE 102008006198A DE 102008006198 A1 DE102008006198 A1 DE 102008006198A1
- Authority
- DE
- Germany
- Prior art keywords
- camshaft
- drive gear
- crankshaft
- sleeve
- output 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.)
- Granted
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
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/047—Camshafts
-
- 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
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/047—Camshafts
- F01L2001/0475—Hollow camshafts
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)
Abstract
Description
Gebiet der ErfindungField of the invention
Die Erfindung betrifft eine Rotationskolbenverstelleinrichtung zur Drehwinkelverstellung einer Nockenwelle gegenüber einer Kurbelwelle, mit einem von der Kurbelwelle antreibbaren Antriebsrad, einem drehfest mit der Nockenwelle verbundenen Abtriebsrad aus Leichtmetall und einer Hülse zur Befestigung des Abtriebsrades an der Nockenwelle.The The invention relates to a rotary piston adjusting device for adjusting the rotational angle a camshaft relative to a crankshaft, with one of the crankshaft drivable drive wheel, a rotationally fixed with the Camshaft connected output wheel made of light metal and a sleeve for fixing the output gear to the camshaft.
Aus
der
Aufgabe der Erfindung ist es, eine gattungsgemäße Rotationskolbenverstelleinrichtung zu schaffen, welche auch bei wechselnden Temperaturen auf Dauer einen sicheren Verbund zwischen Antriebsrad und Nockenwelle aufweisen soll.task The invention is a generic Rotationskolbenverstelleinrichtung to create, which even with changing temperatures in the long run have a secure bond between the drive wheel and the camshaft should.
Die Lösung der Aufgabe erfolgt durch eine Rotationskolbenverstelleinrichtung mit den Merkmalen des Anspruchs 1. Vorteilhafte Aus- und Weiterbildungen sind den Unteransprüchen zu entnehmen.The Solution of the task is done by a Rotationskolbenverstelleinrichtung with the features of claim 1. Advantageous training and further education are to be taken from the subclaims.
Erfindungsgemäß wird vorgeschlagen, dass die Hülse und die Nockenwelle einen im Wesentlichen identischen Temperaturausdehnungskoeffizienten aufweisen, so dass ihr Ausdehnungsverhalten bei Erwärmung identisch ist und keine Spannungen zwischen beiden Teilen auftreten.According to the invention suggested that the sleeve and the camshaft a have substantially identical coefficients of thermal expansion, so that their expansion behavior when heated identically is and no tensions between the two parts occur.
Es wird weiter vorgeschlagen, dass das Abtriebsrad aus einem Sinterwerkstoff hergestellt ist und die Hülse durch Aufschmelzen der Oberflächen der Hülse und/oder des Sinterwerkstoffes mit dem Abtriebsrad verbindbar ist.It It is further proposed that the output gear of a sintered material is made and the sleeve by melting the surfaces of Sleeve and / or the sintered material with the output gear is connectable.
Ferner wird vorgeschlagen, dass das Abtriebsrad über die Hülse direkt mit der Nockenwelle verbunden ist, d. h. dass eine im Stand der Technik vorgesehene Zentralschraube entfällt. Damit vereinfacht sich der konstruktive Aufbau und Montage der Rotationskolbenverstelleinrichtung.Further It is suggested that the output gear on the sleeve is directly connected to the camshaft, d. H. that one in the state the technique provided central screw is eliminated. In order to simplifies the structural design and installation of Rotationskolbenverstelleinrichtung.
Als einfache und kostengünstige Arten der Verbindung von Hülse und Nockenwelle wird vorgeschlagen, beide Teile zu verschweißen, zu verpressen oder zu verschrauben.When simple and inexpensive ways of connecting sleeve and camshaft is proposed to weld both parts, to be pressed or screwed.
Die Hülse kann vorzugsweise einen höheren Verformungswiderstand aufweisen als das Abtriebsrad, so dass die durch die Verbindung zwischen dem mit der Hülse versehenen Abtriebsrad und der Nockenwelle entstehenden Material spannungen im wesentlichen von der Hülse aufgenommen werden und das aus Leichtmetall hergestellte Abtriebsrad nicht belastet wird.The Sleeve may preferably have a higher deformation resistance have as the output gear, so that through the connection between the sleeve provided with the driven gear and the Camshaft resulting material stresses essentially from the sleeve are received and made of light metal Output gear is not loaded.
Nachfolgend wird die Erfindung anhand zweier bevorzugten Ausführungsbeispiele näher beschrieben, wobei die Zeichnungen im Einzelnen zeigen:following the invention is based on two preferred embodiments described in more detail, the drawings show in detail:
In
In
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 10134320 A1 [0002] - DE 10134320 A1 [0002]
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008006198.0A DE102008006198B4 (en) | 2008-01-26 | 2008-01-26 | Rotary piston adjusting device for adjusting the angle of rotation of a camshaft in relation to a crankshaft |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008006198.0A DE102008006198B4 (en) | 2008-01-26 | 2008-01-26 | Rotary piston adjusting device for adjusting the angle of rotation of a camshaft in relation to a crankshaft |
Publications (2)
Publication Number | Publication Date |
---|---|
DE102008006198A1 true DE102008006198A1 (en) | 2009-07-30 |
DE102008006198B4 DE102008006198B4 (en) | 2021-01-14 |
Family
ID=40794438
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102008006198.0A Expired - Fee Related DE102008006198B4 (en) | 2008-01-26 | 2008-01-26 | Rotary piston adjusting device for adjusting the angle of rotation of a camshaft in relation to a crankshaft |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102008006198B4 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10134320A1 (en) | 2001-07-14 | 2003-01-23 | Ina Schaeffler Kg | Device for changing the control times of gas shuttle valves in internal combustion engines comprises a driven unit axially, radially and peripherally locked on a sleeve and screwed in a deformation-free manner on a camshaft |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000034909A (en) * | 1998-07-16 | 2000-02-02 | Mitsubishi Electric Corp | Valve timing varying device and manufacture of valve timing varying device |
-
2008
- 2008-01-26 DE DE102008006198.0A patent/DE102008006198B4/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10134320A1 (en) | 2001-07-14 | 2003-01-23 | Ina Schaeffler Kg | Device for changing the control times of gas shuttle valves in internal combustion engines comprises a driven unit axially, radially and peripherally locked on a sleeve and screwed in a deformation-free manner on a camshaft |
Also Published As
Publication number | Publication date |
---|---|
DE102008006198B4 (en) | 2021-01-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8127 | New person/name/address of the applicant |
Owner name: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, 91074 H, DE |
|
R081 | Change of applicant/patentee |
Owner name: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, DE Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, 91074 HERZOGENAURACH, DE Effective date: 20120823 Owner name: SCHAEFFLER TECHNOLOGIES AG & CO. KG, DE Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, 91074 HERZOGENAURACH, DE Effective date: 20120823 |
|
R081 | Change of applicant/patentee |
Owner name: SCHAEFFLER TECHNOLOGIES AG & CO. KG, DE Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES AG & CO. KG, 91074 HERZOGENAURACH, DE Effective date: 20140217 Owner name: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, DE Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES AG & CO. KG, 91074 HERZOGENAURACH, DE Effective date: 20140217 |
|
R012 | Request for examination validly filed | ||
R012 | Request for examination validly filed |
Effective date: 20141006 |
|
R081 | Change of applicant/patentee |
Owner name: SCHAEFFLER TECHNOLOGIES AG & CO. KG, DE Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, 91074 HERZOGENAURACH, DE Effective date: 20150223 |
|
R016 | Response to examination communication | ||
R018 | Grant decision by examination section/examining division | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |