Mtu Aero Engines Ag

Mtu Aero Engines Gmbh

Christoph Cernay

Julian Weber

Stefan Beichl

Thomas Hess

Alfons Gail

Carsten Butz

Wolfgang Schmidmayr

Frank Stiehler

Roland Huttner

Martin Fessler-Knobel

Alexander Gindorf

Stephan Klaen

Alexander Rauschmeier

Stephan Prostler

Stephan Klän

Benjamin Grobkurth

Erhan Ücgül

Adriano Marchini

Stephan Dr Pröstler

Benjamin Großkurth

A leaf seal for sealing off a shaft rotating around an axis, particularly in a gas turbine, is disclosed. The leaf seal includes a plurality of leaves arranged spaced apart from one another, where the leaves are produced integrally with a basic element supporting the leaves by a generative production process. A process for producing a leaf seal for sealing off a shaft rotating around an axis is also disclosed.

Leaf seal for sealing off a shaft rotating around an axis

The invention relates to a device and a corresponding method for manufacturing brush seals with obliquely positioned bristles. The method comprises the following steps: As the first step, a metal filament or wire () comprising a material for bristles is wound over two wire cores () disposed at a distance from and running parallel to one another, to form a tightly packed metal filament or wire package (). As the next step, the metal filament or wire package () is fastened to at least one wire core (). Then the region around at least one of the two wire cores () is locally heated. Subsequently, at least one of the two wire cores () is displaced.

Method for manufacturing brush seals with obliquely positioned bristles and a corresponding device

The invention relates to a brush seal, in particular for the sealing of gaps occurring in turbomachines, including a plurality of individual fibers, individual wires or bundles of individual fibers or wires, wherein, in each case, at least two individual fibers or wires, and/or at least two fiber bundles or wire bundles are braided or twisted into a fiber or wire package. In addition, the invention relates to a method for producing a brush seal.

Brush seal and method for producing a brush seal

A brush seal for a gas turbine, in particular an aircraft engine, is disclosed. The brush seal includes a support ring which has a support plate and a support structure, where the support structure is arranged downstream with respect to the support plate. The brush seal also includes bristles which are arranged upstream with respect to the support ring, where ends of the bristles protrude radially inward beyond the support plate. The support structure yields when a scraping force acting radially outward occurs on a first lateral surface of the support structure, where the first lateral surface is directed radially inward, and the support structure does not yield when an axial operating force occurs on a second lateral surface of the support structure.

Brush seal

The invention relates to an apparatus () for securing sealing elements () in a recess (), more particularly in an installation slot in a turbomachine, having at least one sealing support element () comprising at least one sealing element (). At least one fixing piece () is fitted between the sealing support element () and a clamping piece () associated with the sealing support element (), and the fixing piece () is integrally joined to the sealing support element () and the clamping piece () by strut-like connections () that can be broken by the application of force. The invention also relates to a securing method and to a method for manufacturing the claimed apparatus ().

Apparatus and method for securing sealing elements

A sealing arrangement for a non-hermetic seal between a stator and a rotor includes a brush gasket having a plurality of bristles wound around a core element and affixed to the core element with a clamping element. The brush gasket is disposed at least partially in a receiving space delimited by a support element and by a cover element. The support element, the cover element, and the brush gasket are secured using at least one fitting element in at least one recess, especially in an axial groove or bore, in the stator. In addition to being positioned by using the at least one fitting element, the components may also be affixed to the stator using an attachment element.

Sealing arrangement and method for the production thereof

A brush seal for sealing off components movable relative to one another with respect to a pressure difference is disclosed. The brush seal having bristles which are arranged in a bristle housing which consists of two housing halves having free ends of legs which project into the area of the ends of the bristles, which legs carry mutually facing supporting surfaces for the bristles.

Apparatus and method for sealing off components with respect to a pressure difference reversal

A brush seal assembly is provided for sealing components which move relative to one another. One of the components includes a recess or groove for accommodating a clamping sleeve which supports bristles. A support plate which is formed separately from the component and the clamping sleeve is pressed into the recess and abuts the recess wall surfaces and the clamping sleeve to hold the same in a predetermined working position.

Growing community of inventors

Bruckmuehl, Germany

Christoph Cernay