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1. US20130327288 - Camshaft adjuster for an internal combustion engine

Office United States of America
Application Number 13884453
Application Date 02.09.2011
Publication Number 20130327288
Publication Date 12.12.2013
Grant Number 08967107
Grant Date 03.03.2015
Publication Kind B2
IPC
F01L 1/34
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
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 1/10
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
10Spiral springs with turns lying substantially in plane surfaces
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 Boese Olaf
Schaeffler Technologies AG & Co. KG
Inventors Boese Olaf
Agents Davidson, Davidson & Kappel, LLC
Priority Data 10 2010 051 052 11.11.2010 DE
Title
(EN) Camshaft adjuster for an internal combustion engine
Abstract
(EN)

A camshaft adjuster (1, 51) for an internal combustion engine, including a stator (5) which is connectable in a rotationally fixed manner to a crankshaft, a rotor which is mounted in the stator (5) so as to be rotatable about a rotational axis, a sealing cover (7, 53) for minimizing leakage, and a spring element (9, 59) for positioning the rotor with respect to the stator (5). The spring element (9, 59) is held on the sealing cover (7, 53) in the axial direction via a spring clip (3, 41). The use of a spring clip (3, 41) provides a cost-neutral and reduced-weight option for reliably positioning the rotor with respect to the stator (5).