Mahle International Gmbh

Mahle Ventiltrieb Gmbh

Fev Motorentechnik Gmbh

Mechadyne Plc

Hermann Hoffmann

Martin Lechner

Thomas Hale

Jonathan Hall

Falk Schneider

Ian Methley

Timothy Mark Lancefield

Patrick Altherr

Alfred Elsässer

Christoph Steinmetz

Markus Duesmann

Peter Wieske

Oliver Fritz

Sascha Senjic

Karl-Heinz Hanslik

Tilo Hentschel

Joachim Hahn

Martin Berger

Benjamin Gaiser

Christopher Steinmetz

Sven Lauer

Helge Djie

Mark Potts

Gordon Taylor

Florian Kollitz

Bernhardt LÜDDECKE

A parking lock for a transmission of an electric or hybrid vehicle is disclosed. The parking lock includes a lock device including an actuatable actuating element and a setting element adjustable between a deployed position and a retracted position. The locking device is configured such that, in response to repeated actuation of the actuating element, the setting element is, via a coupling mechanism, adjusted alternately between the retracted position and the deployed position. A camshaft is provided with a cam arranged on the camshaft that is connected in terms of drive to the lock device. A ratchet wheel is provided with a pawl that is adjustable between an engagement position, where the pawl blocks a rotation of the ratchet wheel, and a release position, where the blocking of the ratchet wheel is released. The setting element adjusts the pawl between the engagement position and the release position.

Parking lock for a transmission of an electric or hybrid vehicle

A parking lock for a transmission of a motor vehicle may include a park gear rotatable about an axis of rotation, and an actuation device adjustable into a locking position and an unlocking position radially relative to the axis of rotation. In the unlocking position, rotating of the park gear may be possible, and in the locking position, rotating of the park gear may be prevented by way of positive locking. The actuation device may include a shifting drum and a locking lever, wherein the shifting drum may be rotatable about a guiding axis that is radial relative to the axis of rotation. The locking lever, by way of a guide track formed in the shifting drum, may interact with the guide track so that when the shifting drum is rotated, the locking lever may be guidable by the guide track radially relative to the axis of rotation and parallel to the guiding axis, and thereby the actuation device may be adjustable into the locking position and into the unlocking position.

Parking lock and a transmission having the parking lock

An internal combustion engine may include at least one cylinder, a first outlet valve and a second outlet valve for directing exhaust gas out from a combustion chamber of the at least one cylinder. The first outlet valve may include a first valve opening and a first valve body where the first valve opening is adjustable between a closed position and an open position. The second outlet valve may include a second valve opening and a second valve body where the second valve body is adjustable between a closed position and an open position. An adjusting lever may adjust one or both of the first valve body and the second valve body between the open position and the closed position.

Internal combustion engine

A piston engine, having at least one cylinder that includes at least a first and a second discharge valve and a double overhead camshaft for controlling the first and a second discharge valves. The double overhead camshaft includes both an inner shaft, which has at least one first cam for controlling the first discharge valve, and an outer shaft that is coaxial to the first inner shaft and has at least one second cam for controlling the second discharge valve. The inner shaft and the outer shaft are rotationally adjustable relative to one another changing the discharge time frame of the discharge valves.

Piston engine

The present invention relates to a cam drive () having a camshaft and having cams ()arranged thereon and having at least one rocker arm () which has a cam follower () and which is operatively connected by means of its first arm () to a plunger-like bearing () and by means of its second arm () to at least one gas exchange valve () of an associated cylinder. The cam drive () also has a device () for varying the lift of the at least one gas exchange valve (). Here, it is essential to the invention that the device () is embodied as a clutch device which acts between the plunger-like abutment () and the rocker arm ()and which has an actuating element () which is mounted so as to be rotatable about an axis () of the plunger-like abutment () at least between two positions, wherein a valve lift in a first, coupled position of the actuating element () is varied in comparison with a second, decoupled position.

Cam drive

The present invention relates to an adjustable camshaft (), which is connected to a crankshaft via a sprocket/belt pulley () and has a phase adjusting device () for adjusting the phase between the camshaft () and the crankshaft. The essential idea of the invention is that the phase adjusting device () comprises a planetary gear () having at least two sun wheels (and) disposed coaxially to each other and planet wheels () surrounding said sun wheels, wherein said planet wheels are rotatably supported on a planet wheel carrier () via a planet wheel axis (). Said planet wheel carrier () can be rotated in relation to the camshaft axis (), wherein a rotation of the planet wheel carrier () brings about a phase adjustment between the camshaft () and the drive.

Adjustable camshaft with a planetary gear

A camshaft has at least two completely machined individual cams fixedly mounted on a shaft in predetermined angular positions. The shaft includes an outside shaft and an inside shaft arranged concentrically in the former, and is to be manufactured in such a way that remachining of the joined camshaft is not necessary. This is by combining the individual cams even before they are mounted on a shaft and joining them to this shaft to form a machining module, such that the individual cams are combined in their mutual arrangement in relation to one another in which the cams are to be mounted on the finished camshaft. The final machining of the cams is performed within this machining nodule. When the cams are completely machined in this way, the cams are joined to the shaft of the camshaft within the machining module. This ensures that the desired mutual arrangement is maintained, i.e., that remachining is not necessary.

Method for manufacturing a camshaft

The present invention relates to a device () for shutting down at least one cylinder of an internal combustion engine. The device () is connected to a rocker lever () which actuates an intake/exhaust valve () of the respective cylinder. In active cylinder operation, the rocker lever () executes an oscillating tilting movement about a pivot axle () which is situated in the area of the connection to the cylinder head (), whereas when the respective cylinder is deactivated, the rocker lever () is lifted by the cylinder head () and therefore its pivot axle () is shifted in the direction of the connection of the rocker lever () to the valve of the respective cylinder. It is essential to the invention here that the device () is arranged essentially between the rocker lever () and the cylinder head () and the device has a guide element (), a pivot axle element () displaceably mounted on the guide element () and a spring () stretched between two abutments ().

Device for deactivation of at least one cylinder of an internal combustion engine

The invention relates to a contoured body having an additional cam contour for effecting a valve control of a piston combustion engine that is used, in particular, for an internal exhaust gas recirculation.

Combustion engine comprising a control cam

A camshaft has contrarotating cams for automotive engines, in which an inside shaft and an outside shaft are arranged concentrically so they are contrarotating, at least one cam has at least one main cam element that can be placed radially on the outside shaft and is supported there so it can rotate. The main cam element is connected to the inside shaft in a manner that is rotationally locked via a fastener passing through a recess in the outside shaft. Further features include a fastener, a main cam element and a locking means. The fastening of the main cam element to the inside shaft is provided by widening the outside diameter of the fastener by the locking means with a resulting tightly seated connection between the fastener and the inside shaft, and the fastener and the locking means.

Camshaft with contrarotating cams for automotive engines in particular

A gas exchange valve of an internal combustion engine, has valve lifting movements with valve displacement curves and a control unit. To this end, a control unit is provided for operation of at least one valve, in particular a gas exchange valve of an internal combustion engine, in which the valvelifting movement of the at least one valve () is generated by superimposing two synchronously rotating cam profiles acting mechanically on a lift operating element (). The two cam profiles () have specially shaped areas by means of which, when superimposed to form one of the two cam profiles (), at least one additional valve displacement (ZV) can be generated on the whole in addition to a main valve displacement movement (HV) over a full revolution of each of these cam profiles ().

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Stuttgart, Germany

Hermann Hoffmann