Doubled cam shaft adjuster in layered construction
AssigneeHilite Germany GmbH
InventorsAndreas Knecht, Dirk Pohl
Life of this patent
Estimating the term…
Abstract
The present invention provides a cam shaft adjuster, which is designed for controlling a double cam shaft, which has a layered construction. The cam shaft adjuster is equipped with a first rotor-type output body and a second rotor-type output body which are arranged parallel to each other with their rotary vane body parts.
Claims22
Cam shaft adjuster for controlling a double cam shaft with a first and a second cam shaft, comprising:
- a first layer;
- a second layer;
- a first rotor-type output body with a first rotary vane body having a center;
- a second rotor-type output body with a second rotary vane body having a center;
- and
- a compensating element;
- wherein:
- the cam shaft adjuster has a layered construction;
- said layered construction is made by the first rotor-type output body and by the second rotor-type output body which are arranged parallel to each other with their rotary vane body parts,
- each output body being designed for reception of at least one cam shaft of the double cam shaft leading laterally out of a center of the cam shaft adjuster,
- the compensating element is provided for orienting at least one of the first and second rotor-type output body relative to the double cam shaft;
- the compensating element is a movable member;
- said movable member creates at least one degree of freedom;
- the at least one output body is adapted to be connected to an inner part of said double cam shaft;
- said movable member allows deflection of the at least one output body relative to the inner part of the cam shaft;
- and
- said deflection differs from a right angle formed between a plane of extension of the at least one output body and a longitudinal axis of the inner cam shaft.
Cam shaft adjuster for controlling a double cam shaft with a first and a second cam shaft, comprising:
- a first layer;
- a second layer;
- a first rotor-type output body with a first rotary vane body having a center;
- a second rotor-type output body with a second rotary vane body having a center;
- and
- a compensating element;
- wherein:
- the cam shaft adjuster has a layered construction;
- said layered construction is made by the first rotor-type output body and by the second rotor-type output body which are arranged parallel to each other with their rotary vane body parts,
- each output body being designed for reception of at least one cam shaft of the double cam shaft leading laterally out of a center of the cam shaft adjuster,
- the compensating element is provided for orienting at least one of the first and second rotor-type output body relative to the double cam shaft,
- the cam shaft adjuster has a single compensating element which is an axial compensating element;
- and
- the cam shaft adjuster consists of two parallel individual adjusters which, uncoupled from each other, stand at an angle of rotation delimited by two respective webs of a single drive body.
Variable valve drive of an internal combustion engine, comprising:
- a gas exchange valve control shaft,
- said gas exchange valve control shaft has two cam shafts are arranged concentrically and which are rotationally adjustable relative to each other and have at least two sets of cams, one set of the cams being linked to each cam shaft,
- said cam shafts allow said at least two sets of cams to be angularly rotated relative to one another, and
- a cam shaft adjuster, said cam shaft adjuster comprising:
- a drive body,
- at least one output body, and
- at least one compensating element,
- wherein:
- said cam shaft adjuster allows, in accordance with a rotary vane principle, relative rotation between said drive body and said at least one output body, and
- said compensating element is arranged toward a side of the cam shaft adjuster that is remote from the cam shaft for axially orienting and joining the cam shaft adjuster relative to the gas exchange valve control shaft issuing laterally therefrom;
- the compensating element is a movable member;
- said movable member creates at least one degree of freedom;
- said at least one output body is adapted to be connected to an inner part of said double cam shaft;
- said movable member allows deflection of the least one output body relative to the inner part of said double cam shaft;
- and
- said deflection differs from a right angle formed between a plane of extension of the at least one output body and a longitudinal axis of the inner cam shaft.
Variable valve drive of an internal combustion engine, comprising:
- a gas exchange valve control shaft,
- said gas exchange valve control shaft has two cam shafts are arranged concentrically and which are rotationally adjustable relative to each other and have at least two sets of cams, one set of the cams being linked to each cam shaft,
- said cam shafts allow said at least two sets of cams to be angularly rotated relative to one another, and
- a cam shaft adjuster, said cam shaft adjuster comprising:
- a drive body,
- at least one output body, and
- at least one compensating element,
- wherein:
- said cam shaft adjuster allows, in accordance with a rotary vane principle, relative rotation between said drive body and said at least one output body,
- said compensating element is arranged toward a side of the cam shaft adjuster that is remote from the cam shaft for axially orienting and joining the cam shaft adjuster relative to the gas exchange valve control shaft issuing laterally therefrom,
- the cam shaft adjuster has a single drive wheel which is arranged on a side close to the cam shaft in such a way that a rotatable connection crown runs in synchronisation with the drive wheel for taking over and forwarding the hydraulic fluid to each chamber of a first and a second rotary vane adjuster, and
- at least one spring is fastened to the drive wheel, which spring is supported at one side on the drive wheel in order to press at least one of the two rotary vane adjusters into a constrained position.
Dependencies are inferred from the claim text.