Schaeffler Technologies Ag & Co .kg

Inhwa Chung

Steven Burke

Craig Dupuis

Andrew Mlinaric

Mike Kohrs

Donald R Haefner

Gerhard Scheidig

Jochen Thielen

Michael Kandolf

Jens Schaefer

Matthias Kapp

Kevin Poole

Jeffrey Mossberg

Vaishnavi Pawade

Nicholas Periat

Jeff Mossberg

Jon Petersen

A camshaft phaser assembly, including: an axis of rotation; a hydraulic camshaft phaser including a stator arranged to receive rotational torque and including a plurality of radially inwardly extending protrusions, a rotor arranged to be non-rotatably connected to a first camshaft and including a plurality of radially outwardly extending protrusions circumferentially interleaved with the plurality of radially inwardly extending protrusions, and a plurality of chambers bounded at least in part by the plurality of radially inwardly extending protrusions and the plurality of radially outwardly extending protrusions; an electric camshaft phaser including an output gear arranged to be non-rotatably connected to a second camshaft located concentrically within the first camshaft and an input non-rotatably connected to the stator; and a connection plate non-rotatably connecting the input and the stator. The rotor and the output gear are rotatable with respect to each other about the axis of rotation.

Camshaft phasers for concentrically arranged camshafts

A camshaft phaser arrangement configured for a concentric camshaft assembly having inner and outer camshafts is provided. The camshaft phaser arrangement includes a first camshaft phaser, a second camshaft phaser, a coupling, and at least one timing wheel connected to at least one of the first or second camshaft phaser. Each of the camshaft phasers is configured to be connected to either the inner or the outer camshaft. The at least one timing wheel defines at least one cutout that is configured to receive at least a portion of the coupling.

Timing wheel for a camshaft phaser arrangement for a concentric camshaft assembly

A camshaft phaser arrangement configured for a concentric camshaft assembly having inner and outer camshafts is provided. The camshaft phaser arrangement includes a first camshaft phaser, a second camshaft phaser, a coupling, and at least one timing wheel connected to at least one of the first or second camshaft phaser. Each of the camshaft phasers is configured to be connected to either the inner or the outer camshaft. The coupling includes a coupling ring and at least one coupling pin that torsionally connects the first camshaft phaser to the second camshaft phaser. The coupling provides for radial and axial movement between the first camshaft phaser and the second camshaft phaser.

Coupling for a camshaft phaser arrangement for a concentric camshaft assembly

A cam shaft phaser, including: a stator including stops; a rotor rotatable with respect to the stator and including a plurality vanes extending radially outward from a body; a plurality of channels, each channel passing through a respective vane included in the plurality of vanes; and a plurality of pairs of advance and retard chambers at least partially formed by the plurality of radially inwardly extending stops and the plurality of vanes. Advance and retard chambers for each pair of advance and retard chambers are separated in a first circumferential direction by a respective vane from the plurality of vanes. Each channel connects the advance and retard chambers for said each pair of advance and retard chambers. The first plurality of channels are arranged to enable fluid flow through the first plurality of channels to displace the rotor from at least one circumferential position to a mid-lock or retard-lock position.

Cam shaft phaser with mid-position and retard lock position

A camshaft phaser, including: an inner rotor with radially outwardly extending vanes which is connected to the inner camshaft; a stator having radially inwardly directed projections which contact the outer surface of the rotor and form working spaces into which the vanes extend, the vanes divide the working spaces into first and second sets of pressure chambers which can be pressurized with a hydraulic medium in order to rotate the rotor in an advancing or retarding direction; a front cover connected to a front side of the assembly defining a front side of the pressure chambers; and a rear cover connected to the rear side of the assembly defining a rear side of the pressure chambers, having first and second protrusions directed toward and meshed with complementary first and second indentations on an outer camshaft.

Camshaft phaser

A concentric cam shaft assembly, including: a first camshaft; a second camshaft including at least a portion disposed radially within the first camshaft; and at least one phasing assembly including first and second electric motors and a first input gear arranged to rotate at a first speed in response to receiving rotational torque from a crankshaft of an engine. The rotational torque is arranged to rotate the first and second camshafts. The first electric motor is arranged to circumferentially off-set the first camshaft with respect to the first input gear. The second electric motor is arranged to circumferentially off-set the second camshaft with respect to the first input gear.

Electric phasing of a concentric camshaft

A camshaft arrangement () for changing the relative angle position of at least one cam of a camshaft () relative to a second cam of the camshaft (), wherein the arrangement includes an angular adjustment device () having a stator () and a rotor () which is arranged such that it can be rotated relative thereto. The rotor () is connected to a shaft () in a rotationally fixed manner, the stator () is connected to a hollow shaft () in a rotationally fixed manner, and the shaft () and the hollow shaft () are arranged concentrically to one another. The at least one first cam is connected to the shaft () in a rotationally fixed manner and the at least one second cam is connected to the hollow shaft () in a rotationally fixed manner. In order to establish a fixed connection between stator and hollow shaft, which requires little space, the rotationally fixed connection between stator () and hollow shaft () is established via a cover element () that is rigidly connected to the stator (), wherein the cover element () includes a borehole () for receiving a cylindrical section () of the hollow shaft () and a force-fitting and/or form-fitting connection between cover element () and hollow shaft () is formed.

Camshaft arrangement

The camshaft adjusting device has an inner spring retainer which mates with a rotor and an outer spring retainer which is fixed on a spring cover plate.

Growing community of inventors

LaSalle, Canada

Inhwa Chung