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1. EP2638255 - CAMSHAFT PHASE ADJUSTER FOR AN INTERNAL COMBUSTION ENGINE

Office European Patent Office
Application Number 11752211
Application Date 02.09.2011
Publication Number 2638255
Publication Date 18.09.2013
Publication Kind B1
IPC
F01L 1/344
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
1Valve-gear or valve arrangements, e.g. lift-valve gear
34characterised by the provision of means for changing the timing of the valves without changing the duration of opening
344changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
F16F 1/12
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
1Springs
02made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
04Wound springs
12Attachments or mountings
CPC
F01L 1/344
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
1Valve-gear or valve arrangements, e.g. lift-valve gear
34characterised 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
344changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
F01L 1/3442
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
1Valve-gear or valve arrangements, e.g. lift-valve gear
34characterised 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
344changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
3442using hydraulic chambers with variable volume to transmit the rotating force
F01L 2001/34483
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
1Valve-gear or valve arrangements, e.g. lift-valve gear
34characterised 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
344changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
3442using hydraulic chambers with variable volume to transmit the rotating force
3445Details relating to the hydraulic means for changing the angular relationship
34483Phaser return springs
F16F 1/10
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
1Springs
02made of steel or other material having low internal friction
04Wound springs
10Spiral springs with turns lying substantially in plane surfaces
Applicants SCHAEFFLER TECHNOLOGIES AG
Inventors BOESE OLAF
Designated States
Priority Data 102010051052 11.11.2010 DE
2011065161 02.09.2011 EP
Title
(DE) NOCKENWELLENVERSTELLER FÜR EINE BRENNKRAFTMASCHINE
(EN) CAMSHAFT PHASE ADJUSTER FOR AN INTERNAL COMBUSTION ENGINE
(FR) DÉPHASEUR D'ARBRE A CAMES POUR MOTEUR A COMBUSTION INTERNE
Abstract
(DE)
Die Erfindung betrifft einen Nockenwellenversteller (1, 51) für eine Brennkraftmaschine, umfassend einen drehfest mit einer Kurbelwelle verbindbaren Stator (5), einen in dem Stator (5) um eine Drehachse drehbar gelagerten Rotor, einen Dichtdeckel (7, 53) zur Leckageminimierung, sowie ein Federelement (9, 59) zur Positionierung des Rotors gegenüber dem Stator (5). Hierbei ist das Federelement (9, 59) über einen Federbügel (3, 41) in axialer Richtung am Dichtdeckel (7, 53) gehalten. Die Verwendung eines Federbügel (3, 41) bietet eine kostenneutrale und gewichtsreduzierte Möglichkeit zur zuverlässigen Positionierung des Rotors gegenüber dem Stator (5).

(EN)
The invention relates to a camshaft adjuster (1, 51) for an internal combustion engine, comprising a stator (5) which is connectable in a rotationally fixed manner to a crankshaft, a rotor mounted in the stator (5) in a rotatable manner about a rotational axis, a sealing cover (7, 53) to minimize leakage, and also a spring element (9, 59) for positioning the rotor with respect to the stator (5). In this case, the spring element (9, 59) is held in the axial direction on the sealing cover (7, 53) via a spring clip (3, 41). The use of a spring clip (3, 41) affords a cost-neutral and reduced-weight possibility of reliably positioning the rotor with respect to the stator (5).

(FR)
L'invention concerne un déphaseur d'arbre à cames (1,51) pour un moteur à combustion interne, comprenant un stator (5) pouvant être relié solidaire en rotation avec un vilebrequin, un rotor logé dans le stator (5) pivotant autour d'un axe de rotation, un couvercle d'étanchéité (7, 53) pour réduire les fuites à un minimum, et un élément ressort (9, 59) pour positionner le rotor par rapport au stator (5). Selon l'invention, l'élément ressort (9, 59) est maintenu contre le couvercle d'étanchéité (7, 53) dans le sens axial au moyen d'une bride de ressort (3, 41). L'utilisation d'une bride de ressort (3, 41) permet de réduire le poids en restant neutre en termes de coûts pour un positionnement fiable du rotor par rapport au stator (5).