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.

Date of Patent:
Jun. 28, 2016

Filed:

Jun. 22, 2012
Applicants:

Willy Heinz Hofmann, Baden-Ruetihof, CH;

Josef Ballmann, Aachen, DE;

Inventors:

Willy Heinz Hofmann, Baden-Ruetihof, CH;

Josef Ballmann, Aachen, DE;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 29/32 (2006.01); F01D 5/20 (2006.01); F01D 5/14 (2006.01); F04D 29/68 (2006.01);
U.S. Cl.
CPC ...
F04D 29/324 (2013.01); F01D 5/145 (2013.01); F01D 5/20 (2013.01); F04D 29/681 (2013.01); F05D 2240/301 (2013.01); F05D 2240/307 (2013.01); F05D 2250/61 (2013.01); F05D 2250/611 (2013.01); Y02T 50/671 (2013.01); Y02T 50/673 (2013.01); Y10T 29/49316 (2015.01);
Abstract

A blade of a turbomachine or a flying machine includes a blade airfoil extending in a radial direction from a blade root to a blade tip. The blade airfoil has an inflow-side leading edge, an outflow-side trailing edge, a pressure side and a suction side. A surface of each of the pressure side and the suction side extends between the inflow-side leading edge and the outflow-side trailing edge. The blade tip has an end face with a camber line that extends from the inflow-side leading edge to the outflow-side trailing edge. At least one tip-side recess forms a depression from the end face into the blade airfoil, the depression extending continuously from the pressure side to the suction side and having a partial length of the camber line.


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