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:
Jun. 08, 2004
Filed:
Apr. 09, 2003
Applicant:
Inventors:
Christian Mundt, Eichwalde, DE;
Dimitrie Negulescu, Berlin, DE;
Marco Rose, Freiberg, DE;
Rene Spieweg, Berlin, DE;
Assignee:
Rolls-Royce Deutschland Ltd & Co KG, Dahlewitz, DE;
Primary Examiner:
Int. Cl.
CPC ...
F01D 9/00 ;
U.S. Cl.
CPC ...
F01D 9/00 ;
Abstract
A turboprop aircraft engine includes at least one outer air intake and at least one downstream inner duct system for the delivery of air to a compressor, and the inner duct system spirals around the center axis of the engine.