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