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:
Jul. 19, 2016
Filed:
Aug. 19, 2011
Peter Nowicki, Weingarten, DE;
Christof Abele, Ravensburg, DE;
Klaus Kuhn, Ravensburg, DE;
ANDRITZ HYDRO GMBH, Vienna, AT;
Abstract
The invention relates to a guide apparatus for turbomachines, in particular for Francis or Kaplan turbines or pumps or pump turbines having a plurality of guide blades which can be actuated via in each case one link on a common adjusting member. Here, every guide blade or every second guide blade can be equipped with a bending element. A bending-failure link can have a screw connection and a bending body element. The screw connection is prestressed and is configured with a defined fracture cross section. The triggering force on the bending-failure link and the holding force after a fracture of the bending element can therefore be selected independently of one another. The guide blades are protected against damage by foreign bodies in the guide apparatus.