Line element for use in exhaust systems of motor vehicles, and in gas turbines, district heating lines and chimney systems, has two-layer, coaxial structure that is made of inner flexible metal hose that is wound from multiple strip layers

• Main Authors: WEIS, MATTHIAS, MUENKER, KARL-HEINZ, SCHENK, KARSTEN, HAUK, STEFAN, GERHARD, ANDREAS, BAUMHOFF, DIETMAR, SELTER, OLIVER, HENKELMANN, MICHAEL
• Format: Patent
• Language: English; German
• Published: 21.07.2011
• Subjects: BLASTING; ENGINE PLANTS IN GENERAL; ENGINEERING ELEMENTS AND UNITS; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; JOINTS OR FITTINGS FOR PIPES; LIGHTING; MACHINES OR ENGINES IN GENERAL; MEANS FOR THERMAL INSULATION IN GENERAL; MECHANICAL ENGINEERING; PIPES; STEAM ENGINES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; THERMAL INSULATION IN GENERAL; WEAPONS

The line element has a two-layer, coaxial structure that is made of an inner flexible metal hose (11) that is wound from multiple strip layers. The line element is provided in the shape of non-uniform rational B-spline. The metal hose is wrapped by an external, rigid roller laminated tube (12). The rigid roller laminated tube is made of E-glass and pre-ceramic materials. The roller laminated roller tube is also made of knitted graphite fibers in combination with absorbent fibers. The tube is made of polyester resins, vinyl ester resins, epoxy resins or chemically bonded phosphate ceramics. Es wird ein starres, beliebig gebogenes Leitungselement beschrieben, welches einen mindestens zweilagigen, koaxialen Aufbau hat. Es besteht aus einem innen liegenden, aus mehreren Bandlagen gewickelten, flexiblen Metallschlauch, der von einem außen liegenden, starren Wickelrohr umhüllt wird.