High temperature pressure sensor element, particularly for measuring pressures inside jet engines, method for the production thereof and component for jet engines

US8001844B2 · kind B2 · utility

Assignee

• ASTRIUM GMBH · DE

Inventors

• Soeren Fricke · Höhenkirchen-Siegertsbrunn, DE
• Gerhard Mueller · Freilassing, DE
• Alois Friedberger · Hamburg, DE
• Eberhard Rose · Ebersberg, DE
• Thomas Ziemann · Inning am Holz, DE
• Ulrich Schmid · Wien, AT
• Dimitri Telitschkin · Heilbronn, DE
• Stefan Ziegenhagen · Bammental, DE

Key dates

• Filing date: Mar 1, 2007
• Grant date: Aug 23, 2011
• Expiry date: Apr 19, 2027

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/49826
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A high-temperature pressure sensor element for power units includes a substrate, in which an interior space is developed, a deformable membrane, which separates the interior space from the exterior space in order to deform when the exterior pressure changes, and a strain measuring element, which is arranged on the membrane, for measuring the deformation of the membrane. The substrate, the membrane, and the strain measuring element are manufactured from the same high-temperature-stable material, such as an alloy. By way of example a nickel base alloy may be used. A component for a power unit, such as a turbine blade for an airplane or rocket engine, includes an integrated high-temperature pressure sensor element of this type.