Federal-mogul Valvetrain Gmbh

Trw Deutschland Gmbh

Stefan Kellermann

Guido Bayard

Antonius Wolking

Andreas Heinek

Andre Mareau

Oliver Schulze

Daniel Eisenring

Thorsten Matthias

Dirk Schober

Klaus Gebauer

Florian Ringeling

Luthfi Arief

Olaf Josef

Frank Zwein

Carsten Struebbe

Wolf-Dieter Streich

Axel Linke

Parth Mistry

Jens GÄRTNER

André Mareau

Carsten STRÜBBE

A method for the production of a poppet valve which is armoured in at least the region of a valve seat, comprising providing a substantially cylindrical or cup-shaped semi-finished product produced from a valve steel, which is coated with an armouring material, whereupon the coated semi-finished product is formed into an armoured poppet valve.

Armored poppet valve and method for the production thereof

A valve rotating device with valve stem seal includes a valve rotating device, with a cylinder head rest and a spring rest intended to bear against a valve spring during operation. The valve rotating device is designed to rotate the spring rest relative to the cylinder head rest during operation. A valve stem seal is attached to the cylinder head rest of the valve rotating device. The valve stem seal being designed to bear against a valve stem and to seal same during rotational and axial movements.

Valve stem seal comprising a valve rotating device

An internally cooled inlet or outlet valve for internal combustion engines, has a valve disc, a valve stem and a cavity inside the valve stem and the valve disc. A coolant is arranged in the cavity, wherein the cavity is provided with at least one guide vane for the coolant.

Valve for internal combustion engines having a guide vane for coolant

A method for manufacturing a poppet valve or mushroom valve includes providing a mixture of metal powder and a binder, filling and pressing said mixture in a mold, to obtain a green product, removing the binder from the green product, and thermally sintering the green product to a poppet valve blank, by hot isostatic pressing. A poppet valve is also provided that is manufactured with this method.

Poppet valve and method of its manufacture

A method for the production for a semi-finished valve product (), includes casting, forging, deep-drawing, pressing and/or drop-welding of one or several metal material into a semi-finished valve product () that corresponds to a circle segment of a valve cut open in the axial direction. A valve is produced by welding together at least two semi-finished valve products () into an internally cooled valve, with the weld running in the axial direction of the valve.

Inside-cooled disc valve and a semi-finished product and method for its production

A poppet valve () with a valve body () has a cavity (), a coolant inlet port (). A coolant outlet port (). The coolant inlet port () and the coolant outlet port () are arranged on a valve stem () of the poppet valve (). The cavity () extends into the valve stem () of the poppet valve () and into a valve head () of the poppet valve (), wherein there is provided a coolant conducting element () within the cavity () and extending into the cavity () from the valve head () to the valve stem (), where the coolant conducting element () in each case has a cross-section. The coolant conducting element () includes a pipe section () and a funnel section (), and the coolant conducting element () extends concentrically to the poppet valve () in the cavity () of the poppet valve ().

Internally cooled poppet valve for internal combustion engine

A device for the actuation of a gas shuttle valve in an internal combustion engine that allows an optimization of both engine performance and fuel consumption by providing a variable valve lift. The lift of the gas shuttle valve can be varied by adjusting the effective axial distance of the actuators. As needed, the valve lift is increased or decreased in order to either improve engine performance or fuel consumption.

Device to actuate a gas shuttle valve in an internal combustion engine

A valve having a sleeve-like screening element for protecting an internal combustion engine against deposits in a region extending up from a hollow throat to a stripping edge. The screening element has a separate contactor guide surface for the combustion air supplied to the combustion chamber whose surface temperature is lower than the critical temperature for deposits at which fuel particles coke.

Growing community of inventors

Barsinghausen, Germany

Stefan Kellermann