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. 19, 2018
Filed:
Jul. 18, 2014
Mtu Aero Engines Ag, Munich, DE;
Klaus Peter Rued, Groebenzell, DE;
Werner Humhauser, Mossburg, DE;
Hermann Klingels, Dachau, DE;
Rudolf Stanka, Rattenkirchen, DE;
Eckart Heinrich, Germering, DE;
Hans-Peter Hackenberg, Olching, DE;
Stefan Weber, Munich, DE;
Claus Riegler, Karlsfeld, DE;
Erich Steinhardt, Munich, DE;
Jochen Gier, Karlsfeld, DE;
Manfred Feldmann, Eichenau, DE;
Norbert Huebner, Dachau, DE;
Karl Maar, Pfaffenhofen an der Ilm, DE;
MTU Aero Engines AG, Munich, DE;
Abstract
A turbofan aircraft engine having a primary duct (C), including a combustion chamber (BK), a first turbine (HT) disposed downstream of the combustion chamber, a compressor (HC) disposed upstream of the combustion chamber and coupled (W) to the first turbine, and a second turbine (L) disposed downstream of the first turbine and coupled (W) via a speed reduction mechanism (G) to a fan (F) for feeding a secondary duct (B) of the turbofan aircraft engine. A square of a ratio of a maximum blade diameter (D) of the fan to a maximum blade diameter (D) of the second turbine is at least 3.5, in particular at least 4.