Hydraulik-ring Gmbh

Other

Dr. Ing. H.c. F. Porsche Aktiengesellschaft

Gerold Sluka

Andreas Knecht

Edwin Palesch

Ralf Naumann

Wolfgang Stephan

Guido Schneider

Alfred Trzmiel

Roland Meyer

Marius Cornea

Lorenz Lippert

Bernd Weigand

Ulf Polzin

Michael Jubelt

Frank Heidl

Axel Willi Jochim

A drive for valve drive operating control systems in motor vehicles, preferably for camshaft adjusters, includes at least one drive wheel and functional parts, such as a cover, a stator, a closing ring, and a sealing ring, as well as at least one rotor. The drive wheel and at least one of the functional parts are produced in a single part from a high-resistant, non-metallic material.

Drive for valve operating control systems in motor vehicles, preferably camshaft adjusters

An oscillating motor for a camshaft adjusting device has a stator and a rotor mounted so as to be rotatable relative to one another. The stator has an inner wall and radially extending stator vanes connected to the inner wall. The rotor has a base member and radially extending rotor vanes connected to the base member. The rotor vanes have an end face, respectively, resting against the inner wall of the stator. The stator vanes have an end face, respectively, resting against a peripheral wall of the base member. The rotor vanes taper discontinuously from the end face of the rotor vanes, respectively, in a direction toward the base member so that the rotor vanes each have a widened section at the end face, respectively.

Oscillating motor for a camshaft adjusting device

An adjusting device for camshafts of motor vehicles has a stator having radial inwardly projecting stays and a rotor having vanes projecting into spaces defined between the stays of the stator. The rotor is rotatable relative to the stator and the vanes of the rotor are loadable on opposed sides with a pressure medium. The rotor is lockable relative to the stator in a locked position, wherein the stator has at least one locking bore and the rotor has a locking element having a locking position in which the locking element engages the locking bore and locks the rotor in the locked position. The locking element is moveable by the pressure medium from the locking position into a release position.

Adjusting device for camshafts, particularly for motor vehicles

A device for adjusting a camshaft of an internal combustion engine of a motor vehicle has a stator and a rotor fixedly connected to a camshaft and rotatable relative to the stator. A drive wheel is fixedly connected to the stator and is centered by the camshaft. The stator has a peripheral area provided with a centering element interacting with a counter element provided on the drive wheel for aligning the drive wheel in a rotational direction relative to the stator.

Device for adjusting a camshaft of an internal combustion engine of a motor vehicle

A control device for at least one consumer of a motor vehicle, having an engine and at least one pump for supplying a medium via at least one pressure line to the at least one consumer, is configured to supply the medium to the at least one consumer before the engine is started. The pump can be driven by an electric motor or by the engine of the motor vehicle or alternatingly by the electric motor and the engine.

Control device for at least one consumer, such as a camshaft adjuster, automatic transmission and the like, of motor vehicles

A check valve is mounted in a valve arrangement having a valve member with an annular channel and at least one bore opening into the annular channel. The check valve has a closing element configured to close the at least one bore in the annular channel. The closing element is formed of a strip shaped as a ring. The strip of the check valve is arranged in the annular channel of the valve member.

Check valve and valve arrangement comprising such a check valve

A camshaft adjuster for internal combustion engines of motor vehicles has a stator having a casing and stays connected to the casing and projecting radially inwardly. A rotor rotatable relative to the stator is fastened on the camshaft. The rotor has a rotor base member and vanes connected thereto. The vanes project into spaces between the stator stays. The stays each have an end face that rest sealingly against the rotor base member. The vanes of the rotor each have an end face resting sealingly against an inner peripheral wall of the stator. At least one of the vanes of the rotor has a damping element and the stator has at least one counter damping element. Upon rotation of the rotor into its end position, the damping element interacts with the counter damping element and slows the movement of the rotor into the end position.

Camshaft adjuster for internal combustion engines of motor vehicles

A camshaft adjuster for motor vehicles has a stator and a rotor rotatable relative thereto between which pressure chambers are provided. Pressure medium is supplied in a controlled way via a valve to the pressure chambers in order to rotate the rotor relative to the stator. Mounting of the valve in the internal combustion engine of the motor vehicle is often difficult when mounting conditions are tight, sometimes even impossible. In order for the camshaft adjuster to be usable even in tight spatial conditions, the valve is arranged on the side facing away from the camshaft connection. The valve can therefore be arranged stationarily axially outside of the engine of the motor vehicle. The camshaft adjuster requires thus only little mounting space.

At least one locking device between an interior part and cellular wheel, which is equipped with a movable locking element that acts together with at least one counter-element in a respectively other component of the two components cellular wheel or interior part, causes the interior part to be able to be locked relative to the cellular wheel in at least one final position. The locking and/or unlocking process of the locking element occurs through at least one oil duct that leads to the locking element. Between two pressure chambers in or on the cellular wheel an opening connected with the oil duct is arranged, whose passage to the two pressure chambers is controlled in dependence on the adjusting position of the interior part. This way, the cam shaft adjusting unit can be locked safely.

Device for relative rotational angle adjustment of a cam shaft of an internal combustion engine to a drive wheel

A device for an internal combustion engine includes a cell wheel and a blade wheel, which is mounted in the cell wheel so as to be relatively moveable and is actuated hydraulically by oil and via pressure chambers. The oil flows through axial lines into the pressure chambers, which are designed, on the one hand, between a shaft of an axial fastening screw, inserted from one face side of the camshaft, and a control sleeve, which envelops the shaft and rests in at least one receiving borehole, and is designed, on the other hand, between the control sleeve and a borehole, which is arranged coaxially to the latter and belongs to a hub. For an optimal design of the lines by the control sleeve and a simple assembly of the control sleeve, the control sleeve and the fastening screw, exhibiting the shaft, are inserted starting from the same face side, which control sleeve rests in corresponding receiving boreholes of the hub.

Device and method for changing the relative rotational angle of a camshaft

An arrangement is provided for relative angle-of-rotation adjustment of a camshaft of an internal-combustion engine with respect to a driving wheel. An interior part, non-rotatably connected with the camshaft, has at least approximately radially extending webs or vanes. A driven cell wheel has several cells distributed along the circumference and bounded by webs. The camshaft is rotatable by way of the webs or vanes between two end positions relative to the cell wheel, and the interior part is laterally bounded by two cover elements connected with the cell wheel. Recesses forming chambers are provided to reduce friction between the webs or vanes of the interior part and the cover elements in the side walls of the vanes directed to the cover elements. During operation of the internal-combustion engine, the recesses are at least partially acted upon by hydraulic oil.

Arrangement for the relative angle-of-rotation adjustment of a camshaft of an internal-combustion engine with respect to a driving wheel

A camshaft includes a device for hydraulic adjustment of a relative rotating position of the camshaft for the purpose of influencing valve timing. The device has a drive wheel, a cell wheel, and an impeller. The impeller is disposed by way of vanes within cells of the cell wheel and can carry out relative motion. A locking arrangement, which operates in the starting phase of the internal-combustion engine, is provided between the cell wheel and the impeller. The locking arrangement is formed by an axially spring-loaded, hydraulically operated piston housed in one of the vanes of the impeller and by a corresponding receiving device for the piston provided in a constructional unit consisting of the drive wheel and the cell wheel. The piston, which projects by way of a locking section into the receiving device and is guided in the vane, cooperates with an operating element for optimizing the locking arrangement. The piston is acted upon from a first pressure space, and the operating element is acted upon from second pressure space.

Camshaft for the operation of valves of an internal-combustion engine

An arrangement for the relative angle-of-rotation adjustment of a camshaft with respect to a driving wheel has an interior part which is non-rotatably connected with the camshaft. A driven cell wheel has several cells which are distributed along the circumference and are bounded by webs and can be divided into two pressure spaces by the webs or blades guided therein in an angularly movable manner. At least one locking device, which is operative between the interior part and the cell wheel, can lock the interior part with respect to the cell wheel in at least one end position. At least one blade of the interior part has a head part having at least one locking element which interacts with a locking structure provided on at least one web of the cell wheel.

Apparatus for relative angular adjustment of a crankshaft of a combustion engine with respect to a driving wheel and methods of making and operating same

A pump for conveying a liquid has a housing and a shaft rotatably supported in the housing. An eccentric drive is arranged in the housing. At least one drive element is provided and is configured to be driven by the eccentric drive. The shaft is configured to adjust the eccentricity of the eccentric drive. The drive element is configured to be adjusted according to the eccentricity of the eccentric drive by a translatory movement in a direction transverse to the shaft.

Growing community of inventors

Nurtingen, Germany

Gerold Sluka