公开(公告)号：EP2558365A1

公开(公告)日：2013-02-20

申请号：EP11716126.5

申请日：2011-04-13

Applicant: The Timken Company

Inventor： AI, Xiaolan ,  ORKIN, Curt ,  KRUSE, Randy, P. ,  FORBES, Ryan ,  WILMER, Matthew ,  SMITH, Bradley ,  CHIAVAROLI, Neil

IPC: B64C27/12 ,  F16H1/20 ,  F16H1/28 ,  F16H57/08

CPC classification number: B64C27/12 ,  F16H1/28 ,  F16H57/082

Abstract: A method and apparatus for a transmission system selectively positioning sets of planet gear support bearings (50, 55, 80, 90) to achieve an optimized load distribution among a set of drive planet pinions (22) and a set of idler planet pinions (70) disposed in engagement between two reaction gears (30, 40) in the transmission system (A, A1), for splitting an applied load between at least two pathways between an input and an output.

公开(公告)号：EP2534394A1

公开(公告)日：2012-12-19

申请号：EP11705372.8

申请日：2011-02-11

Applicant: The Timken Company

Inventor： AI, Xiaolan ,  ORKIN, Curt ,  KRUSE, Randy, P. ,  FORBES, Ryan ,  WILMER, Matthew

IPC: F16H1/28 ,  B64C27/14 ,  B64D35/04 ,  B64D35/06

CPC classification number: F16H1/28 ,  B64C27/12 ,  F16H57/082 ,  F16H2001/2881

Abstract: A high ratio epicyclic gear train (A) with improved load carrying capability for transmitting power from a driven input shaft, such as may be driven by a turbine engine or engines, to a output shaft, as may be coupled to a rotor of a rotary wing aircraft. The compound epicyclic gear train incorporates a load sharing mechanism consisting of a drive sun gear (10), an idler sun gear (11), a ring gear (12), a set of drive planet gear assemblies (13), a set of idler planet gear assemblies (14), and a planet carrier assembly (15) coupled to provide at least two power pathways through said epicyclic gear train (A) between said driven input shaft and said output shaft to provide an improved overall power density of the transmission.

公开(公告)号：EP1879754A1

公开(公告)日：2008-01-23

申请号：EP06759533.0

申请日：2006-05-11

Applicant: The Timken Company

Inventor： AI, Xiaolan ,  MCDEARMON, Graham, F. ,  WILMER, Matthew

IPC: B60B27/00 ,  G01L5/16

CPC classification number: G01L5/161 ,  B60B27/00

Abstract: A wheel end (A) has a housing (2, 70, 80, 90) and a hub (4) provided with a spindle (32) that projects into the housing, and the hub rotates relative to the housing on an antifriction bearing (6) located between the housing and hub spindle. The housing has a tubular core (12, 72, 82, 92) that encloses the bearing and ring mounts (14, 74, 84, 94) spaced outwardly from the core and also webs (16,76,86,96) that connect the ring mounts to the core. A road wheel (B) is attached to the hub and rotates with the hub relative to the housing. The housing is secured to a suspension upright (C) at its ring mounts. The core deflects relative to the ring mounts, owning to forces and moments transferred through the bearing from the suspension upright to the road wheel and vice versa, and the magnitude of those forces and moments are reflected in signals derived from strain sensor modules (SM) attached to the webs of the housing.