US Patent 11156285 Asymmetric gear teeth

Patent 11156285 was granted and assigned to Sikorsky Aircraft on October, 2021 by the United States Patent and Trademark Office.

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Patent

Patent attributes

Patent Applicant

Sikorsky Aircraft

Current Assignee

Sikorsky Aircraft

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

11156285

Patent Inventor Names

Yuriy Gmirya0

Jonathan Frost0

Joseph A. Mucci0

Adam Taylor0

David A. Binney0

Date of Patent

October 26, 2021

Patent Application Number

20170816

Date Filed

August 16, 2017

Patent abstract

A gear train includes a first gear having teeth meshed with teeth of a second gear. Each tooth of the first gear includes a coast side and a drive side opposed to the coast side. The drive side has a pressure angle that is greater than that of the coast side. The gear train can be part of a powertrain system for a rotorcraft, and can replace a traditional gear train in a retrofit or new build. The first gear is a planet gear and the second gear is a ring gear wherein the planet gear and ring gear are in a planetary gear train configuration.

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