Witzenmann Gmbh

Bernd Seeger

Jorg Ludwig

Rene Rosler

Daniel Rothfuss

Bert Balmer

Hans-Jurgen Leidig

Bernd Michelfelder

Jörg Ludwig

René Rösler

Proposed is a line assembly (), including: a metal hose () that is corrugated at least in some segments; and an inner component (), which is arranged radially inside the metal hose at least over a partial length of the metal hose; the line assembly being distinguished by at least one coupling element ('), which coupling element is arranged between an outer border () of the metal hose () and an outside surface () of the inner component () and which coupling element is designed to damp the metal hose () by means of mechanical coupling to the inner component ().

Line assembly

A duct element for the exhaust system of a motor vehicle with an internal combustion engine, including at least one flexible duct part, preferably a bellows. The flexible duct part is embodied at least partially from a first type of steel with a Mo-content &#x2267;4% or &#x2267;6% and with a N-content from 0.3% to 0.6% or from 0.18% to 0.25%, preferably embodied from steel of the type 1.4565 or the type 1.4547. Furthermore a decoupling element is provided for motor vehicles with an internal combustion engine and a respective use of steel embodied with a Mo-content &#x2267;4% or &#x2267;6% and a N-content from 0.3% to 0.6% or from 0.18% to 0.25%, preferably steel of the type 1.4565 or 1.4547.

Duct element for the exhaust system of a motor vehicle

A heat exchanger for swimming pools, formed of an essentially cylindrical housing through which a first medium flows axially, while a second medium flows through a conduit that is installed in the housing and that is fashioned as a coil. The coil-shaped conduit is formed of a corrugated hose, and has separate connections for the second medium, or for the corrugated hose. The corrugated hose is connected at its end segments to separate connections for the second medium via a plug connection. The connections extend from the outside to the inside of the housing, passing through the housing.

Heat exchanger, in particular for swimming pools

Growing community of inventors

Pforzheim, Germany

Bernd Seeger