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:
Nov. 21, 2017
Filed:
Mar. 27, 2012
Applicants:
Erik Johann, Berlin, DE;
Frank Heinichen, Berlin, DE;
Inventors:
Erik Johann, Berlin, DE;
Frank Heinichen, Berlin, DE;
Assignee:
ROLLS-ROYCE DEUTSCHLAND LTD & CO KG, Blankenfelde-Mahlow, DE;
Primary Examiner:
Int. Cl.
CPC ...
F01D 9/04 (2006.01); F04D 29/54 (2006.01); F04D 29/52 (2006.01); F04D 29/68 (2006.01);
U.S. Cl.
CPC ...
F04D 29/542 (2013.01); F01D 9/04 (2013.01); F04D 29/522 (2013.01); F04D 29/547 (2013.01); F04D 29/681 (2013.01); F05D 2220/3216 (2013.01); F05D 2250/70 (2013.01); F05D 2250/71 (2013.01);
Abstract
The present invention relates to a stator of an axial compressor stage of a turbomachine featuring a radially outer blade ring forming an outer ring surface, a radially inner blade ring forming an inner ring surface, and several stator blades connected to the blade rings. It is provided that the outer ring surface and/or the inner ring surface has at least in a partial area a changing radius relative to a central axis of the stator both in the axial direction and in the circumferential direction.