发明名称 |
Rotorcraft and planetary gear systems |
摘要 |
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. |
申请公布号 |
US9255626(B2) |
申请公布日期 |
2016.02.09 |
申请号 |
US201414301263 |
申请日期 |
2014.06.10 |
申请人 |
The Boeing Company |
发明人 |
Bouwer Scott Hendrik;Robuck Mark Joseph |
分类号 |
F16H1/46;B64C27/12;B64C27/10 |
主分类号 |
F16H1/46 |
代理机构 |
DASCENZO Intellectual Property Law, P.C. |
代理人 |
DASCENZO Intellectual Property Law, P.C. |
主权项 |
1. A rotorcraft, comprising:
a fuselage; a transmission supported by the fuselage, the transmission comprising:
a planetary gear system, comprising:
a non-fixed annular gear configured to continuously rotate about a primary rotation axis;a first non-fixed sun gear positioned within the non-fixed annular gear and configured to continuously rotate about the primary rotation axis;a second non-fixed sun gear positioned within the non-fixed annular gear and configured to continuously rotate about the primary rotation axis;a fixed sun gear; anda plurality of compound planet gears operatively positioned between the non-fixed annular gear and the fixed sun gear, wherein each compound planet gear each includes a larger planet gear stage having a larger pitch diameter, a smaller planet gear stage having a smaller pitch diameter less than the larger pitch diameter, and a smallest planet gear stage having a smallest pitch diameter less than the smaller pitch diameter, wherein the larger planet gear stages are meshed with the first non-fixed sun gear, wherein the smaller planet gear stages are meshed with the fixed sun gear, wherein the smallest planet gear stages are meshed with second non-fixed sun gear, and wherein one of the larger planet gear stages, the smaller planet gear stages, and the smallest planet gear stages are meshed with the non-fixed annular gear;an input shaft operatively coupled to the non-fixed annular gear;a first output shaft operatively coupled to the first non-fixed sun gear;a second output shaft operatively coupled to the second non-fixed sun gear;a housing operatively coupled to the fixed sun gear and supported by the fuselage; an engine operatively supported by the fuselage and operatively coupled to the input shaft; a first rotor operatively coupled to the first output shaft; and a second rotor operatively coupled to the second output shaft. |
地址 |
Chicago IL US |