EP1803904A3 - Camshaft - Google Patents

Camshaft Download PDF

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Publication number
EP1803904A3
EP1803904A3 EP06125818A EP06125818A EP1803904A3 EP 1803904 A3 EP1803904 A3 EP 1803904A3 EP 06125818 A EP06125818 A EP 06125818A EP 06125818 A EP06125818 A EP 06125818A EP 1803904 A3 EP1803904 A3 EP 1803904A3
Authority
EP
European Patent Office
Prior art keywords
camshaft
shafts
sprocket
shaft
swash plates
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
Application number
EP06125818A
Other languages
German (de)
French (fr)
Other versions
EP1803904B1 (en
EP1803904A2 (en
Inventor
Martin Lechner
Oliver Fritz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mahle International GmbH
Original Assignee
Mahle International GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mahle International GmbH filed Critical Mahle International GmbH
Publication of EP1803904A2 publication Critical patent/EP1803904A2/en
Publication of EP1803904A3 publication Critical patent/EP1803904A3/en
Application granted granted Critical
Publication of EP1803904B1 publication Critical patent/EP1803904B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • F01L1/34413—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 composite camshafts, e.g. with cams being able to move relative to the camshaft
    • 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
    • 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
    • F01L1/356—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 making the angular relationship oscillate, e.g. non-homokinetic drive
    • 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
    • F01L2001/0471—Assembled camshafts
    • F01L2001/0473—Composite camshafts, e.g. with cams or cam sleeve being able to move relative to the inner camshaft or a cam adjusting rod
    • 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
    • F01L2001/34486—Location and number of the means for changing the angular relationship
    • F01L2001/34493—Dual independent phasing system [DIPS]

Abstract

Bei einer Nockenwelle für insbesondere eine Betätigung der Gaswechelsventile eines Verbrennungsmotors mit
- zwei koaxial ineinander und gegeneinander verdrehbar gelagerten Wellen, nämlich einer ersten und einer zweiten Welle (1; 2),
- ersten mit der ersten Welle (1) und zweiten mit der zweiten Welle (2) jeweils fest verbundenen Nocken,
- einem auf beide Wellen (1, 2) einwirkenden Haupt-Nockenwellenantrieb,
- und einer Einrichtung zur Verstellung einerseits der Drehwinkellage der ersten und zweiten Welle gegeneinander durch einen ersten Stellantrieb und andererseits beider Wellen (1, 2) der Nockenwelle gemeinsam durch einen zweiten Stellantrieb (4),
soll die Verstelleinrichtung reaktionsschnell und große Verstellwinkel ermöglichend bei einem einfachen Konstruktionsaufbau ausgebildet sein.In a camshaft for in particular an actuation of the gas exchange valves of an internal combustion engine with
two shafts coaxial with each other and rotatable relative to one another, namely a first and a second shaft (1, 2),
- First with the first shaft (1) and second with the second shaft (2) each firmly connected cam,
a main camshaft drive acting on both shafts (1, 2),
- And a device for adjusting the one hand, the rotational angular position of the first and second shaft against each other by a first actuator and on the other hand both shafts (1, 2) of the camshaft together by a second actuator (4),
should the adjusting quick reaction and large adjustment possible enabling in a simple construction design.

Zu diesem Zweck zeichnet sich eine solche Nockenwelle durch folgende Merkmale aus:
- die beiden Stellantriebe (3, 4) weisen jeweils ein Taumelscheiben-Getriebe mit Taumelscheiben 3'; 4' auf, die jeweils um die gemeinsame Nockenwellenachse auf einen Taumelscheibenlager (3"; 4") gelagert sind und mit jeweils einem Zahnkranz (3V; 4V) sowie jeweils mit mindestens einem Mitnehmer (3IV; 4IV) versehen sind,
- die Mitnehmer (3IV; 4IV) beider Taumelscheiben (3IV; 4IV) wirken mit einer der beiden Wellen (1, 2) unmittelbar zusammen,
- von den Taumelscheiben (3'; 4') wirkt eine über ihren zugehörigen ersten Zahnkranz (3V) mit einer der beiden Wellen (1; 2) zusammen und die andere über ihren zugehörigen zweiten Zahnkranz (4V) mit einem Zahnkranz (9') eines Abtriebselementes des Hauptantriebes zusammen.

Figure imgaf001
For this purpose, such a camshaft is characterized by the following features:
- The two actuators (3, 4) each have a swash plate transmission with swash plates 3 '; 4 ', which are mounted in each case about the common camshaft axis on a swash plate bearing (3 ", 4") and each with a sprocket (3 V , 4 V ) and each with at least one driver (3 IV , 4 IV ) are provided
- The drivers (3 IV , 4 IV ) of both swash plates (3 IV , 4 IV ) with one of the two shafts (1, 2) directly together,
of the swash plates (3 ', 4'), one acts on its associated first sprocket (3 V ) with one of the two shafts (1, 2) and the other on its associated second sprocket (4 V ) with a sprocket (9 ') of an output element of the main drive together.
Figure imgaf001
EP06125818A 2005-12-21 2006-12-11 Camshaft Expired - Fee Related EP1803904B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005061187A DE102005061187A1 (en) 2005-12-21 2005-12-21 camshaft

Publications (3)

Publication Number Publication Date
EP1803904A2 EP1803904A2 (en) 2007-07-04
EP1803904A3 true EP1803904A3 (en) 2009-04-08
EP1803904B1 EP1803904B1 (en) 2010-04-07

Family

ID=38033326

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06125818A Expired - Fee Related EP1803904B1 (en) 2005-12-21 2006-12-11 Camshaft

Country Status (3)

Country Link
US (1) US7421992B2 (en)
EP (1) EP1803904B1 (en)
DE (2) DE102005061187A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009067789A1 (en) * 2007-11-26 2009-06-04 Magna Powertrain Inc. Concentric camshaft with electric phase drive
GB2472054B (en) * 2009-07-23 2013-02-27 Mechadyne Plc Phaser assembly for an internal combustion engine
WO2011042392A1 (en) * 2009-10-05 2011-04-14 Schaeffler Technologies Gmbh & Co. Kg Camshaft arrangement
CN102549240B (en) * 2009-10-05 2014-06-11 谢夫勒科技股份两合公司 Camshaft arrangement
DE102011006691A1 (en) * 2011-04-04 2012-10-04 Schaeffler Technologies Gmbh & Co. Kg Phaser
DE102011116130A1 (en) * 2011-10-15 2013-04-18 Volkswagen Aktiengesellschaft Valve train for an internal combustion engine
US9297283B2 (en) 2012-05-18 2016-03-29 Schaeffler Technologies AG & Co. KG Camshaft unit
US9638306B2 (en) 2012-05-18 2017-05-02 Schaeffler Technologies AG & Co. KG Camshaft unit
DE102021114162B4 (en) 2021-06-01 2022-12-08 Schaeffler Technologies AG & Co. KG Electromechanical camshaft adjuster

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0582846A1 (en) * 1992-08-13 1994-02-16 Bayerische Motoren Werke Aktiengesellschaft Internal combustion piston engine with gas exchange valves per cylinder
DE19526888A1 (en) * 1995-04-21 1997-01-23 Audi Ag Mechanism for discrete adjustment of phase position of two camshafts
US20050235939A1 (en) * 2004-04-24 2005-10-27 Aft Atlas Fahrzeugtechnik Gmbh Device for adjusting the timing of valves and internal combustion engine having such a device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4294218A (en) * 1978-10-26 1981-10-13 Caterpillar Tractor Co. Differential timing altering mechanism for fuel injectors
DE10038354C2 (en) * 2000-08-05 2003-03-20 Atlas Fahrzeugtechnik Gmbh Control device for adjusting the angle of rotation of a camshaft
GB2369175A (en) * 2000-11-18 2002-05-22 Mechadyne Plc Variable phase coupling
DE10222475A1 (en) * 2002-05-22 2003-12-04 Atlas Fahrzeugtechnik Gmbh Gearbox with two interlocking turntables that are connected by a swashplate

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0582846A1 (en) * 1992-08-13 1994-02-16 Bayerische Motoren Werke Aktiengesellschaft Internal combustion piston engine with gas exchange valves per cylinder
DE19526888A1 (en) * 1995-04-21 1997-01-23 Audi Ag Mechanism for discrete adjustment of phase position of two camshafts
US20050235939A1 (en) * 2004-04-24 2005-10-27 Aft Atlas Fahrzeugtechnik Gmbh Device for adjusting the timing of valves and internal combustion engine having such a device

Also Published As

Publication number Publication date
DE102005061187A1 (en) 2007-06-28
EP1803904B1 (en) 2010-04-07
DE502006006633D1 (en) 2010-05-20
US20070137598A1 (en) 2007-06-21
EP1803904A2 (en) 2007-07-04
US7421992B2 (en) 2008-09-09

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