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:
Mar. 31, 2015
Filed:
Oct. 10, 2012
Applicant:
Airbus Helicopters Deutschland Gmbh, Donauworth, DE;
Inventors:
Andreas Doleschel, Grosshelfendorf, DE;
Martin Weidenthaler, Unterhaching, DE;
Christian Wirth, Ismaning, DE;
Franz Kurth, Ismaning, DE;
Bernd-Robert Hohn, Munich, DE;
Assignee:
Airbus Helicopters Deutschland GmbH, Donauworth, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 3/72 (2006.01); F16H 3/66 (2006.01); F16H 3/54 (2006.01); B64C 27/12 (2006.01);
U.S. Cl.
CPC ...
F16H 3/66 (2013.01); F16H 3/54 (2013.01); F16H 3/725 (2013.01); B64C 27/12 (2013.01); F16H 2200/0034 (2013.01); F16H 2200/0039 (2013.01); F16H 2200/2005 (2013.01); F16H 2200/2007 (2013.01); F16H 2200/2035 (2013.01); F16H 2200/2038 (2013.01); F16H 2200/2041 (2013.01); F16H 2200/2033 (2013.01); F16H 2200/2097 (2013.01); F16H 2200/2082 (2013.01);
Abstract
A planetary gear () for variable transmission, particularly a planetary gear for variable transmission towards a tail rotor of a helicopter. At least one gear set (s, s, s, s) of a sun gear (w, w) comprises a ring gear (w, w), planetary wheels () and a planet carrier (w, w, w). At least one clutch (k, K, K) and at least one freewheel (Fl, FL, FL) are provided for at least two different speeds of the planet carrier (w, w, w) as output.