Patent · US Active

Rotorcraft and planetary gear systems

US9255626B2 · kind B2 · utility

1Cited by

16References

21Claims

0Family size

Assignee

The Boeing Company · US

Inventors

Scott Hendrik Bouwer · Allentown, US
Mark J. Robuck · Chadds Ford, US

Key dates

Filing date	Jun 10, 2014
Grant date	Feb 9, 2016
Priority date	—
Expiry date	Jun 10, 2034

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16H2001/2872
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

Planetary gear systems, transmissions, and apparatuses include at least one non-fixed annular gear, at least one non-fixed sun gear, at least one compound planet gear meshed between the at least one non-fixed annular gear and the at least one non-fixed sun gear, and at least one fixed gear meshed with the at least one compound planet gear. Rotational input to one of the at least one non-fixed annular gear and the at least one non-fixed sun gear results in an opposite rotational output of the other of the at least one non-fixed annular gear and the at least one non-fixed sun gear.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.