The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 28, 2012
Filed:
Nov. 05, 2009
Karl Schreiber, Am Mellensee, DE;
Raimund Grothaus, Dresden, DE;
Karl Schreiber, Am Mellensee, DE;
Raimund Grothaus, Dresden, DE;
Abstract
A low-pressure turbine shaft () for a gas-turbine engine includes a fiber-composite plastic tube () with fiber layers provided in an inner wall area for taking up and transmitting torsional forces, and, in an outer wall area, with fiber layers suitably oriented for influencing stiffness and damping characteristics. The fiber layers are embedded in a high temperature resistant plastic matrix. A load input element () is an attachment flange () made of fiber-composite plastic material integrally formed on a fiber-composite plastic tube (). A load output element () is a metallic driven protrusion inseparably connected to the fiber layers transmitting the torsional forces. Alternatively, the load input element may be provided as a metallic driving protrusion, which is firmly connected to the fiber layers taking up the torsional forces.