公开(公告)号：US11021982B2

公开(公告)日：2021-06-01

申请号：US16145524

申请日：2018-09-28

Applicant: HAMILTON SUNDSTRAND CORPORATION

Inventor： Michael R. Blewett ,  Yiwei Jiang

IPC: F01D11/00 ,  F16J15/34 ,  F02C7/28 ,  F01D25/18

Abstract: A sealing arrangement for a shaft according to an example of the present disclosure includes a shaft and a sealing assembly. The sealing assembly includes a seal cartridge that has at least one sealing element. The first and second mating rings are configured to axially locate the seal cartridge with respect to the shaft. The second mating ring includes at least one tang that is configured to extend through at least one corresponding slot in the shaft, the at least one tang is configured to engage a retaining ring to axially retain the second mating ring on the shaft. A gearbox/accessory interface assembly and a method of sealing a gearbox with respect to an accessory are also disclosed.

公开(公告)号：US20170306851A1

公开(公告)日：2017-10-26

申请号：US15137276

申请日：2016-04-25

Applicant: Hamilton Sundstrand Corporation

Inventor： Yiwei Jiang ,  Michael R. Blewett

IPC: F02C7/32 ,  F16F15/02 ,  F16H57/025

CPC classification number: F02C7/32 ,  F05D2260/30 ,  F05D2260/96 ,  F16F15/02 ,  F16H57/025

Abstract: A link assembly between an engine and a gearbox includes a male link coupled to the engine or the gearbox, a female link coupled to the engine or the gearbox, wherein the female link receives the male link to allow translation of the male link relative to the female link and to form a radial interface, wherein the radial interface dampens translation of the male link relative to the female link, and a pin releasably coupled to the male link and the female link to selectively retain the male link and the female link.

公开(公告)号：US11015698B2

公开(公告)日：2021-05-25

申请号：US16148085

申请日：2018-10-01

Applicant: HAMILTON SUNDSTRAND CORPORATION

Inventor： Yiwei Jiang ,  Michael R. Blewett

IPC: F02C7/32 ,  F16H57/02 ,  F16H57/025

Abstract: A link for mounting a first component to a second component according to an example of the present disclosure includes a first piece connectable to the first component, a second piece connectable to the second component, the second piece includes a main body portion receivable in an opening in the first piece. A primary fastener is configured to retain the main body portion of the second piece in the opening. A secondary fastener is configured to retain the main body portion of the second piece in the opening, the secondary fastener capable of withstanding higher loads than the primary fastener. A gas turbine engine assembly and a method of constraining a gearbox with respect to an engine are also disclosed.

公开(公告)号：US20200256256A1

公开(公告)日：2020-08-13

申请号：US16269956

申请日：2019-02-07

Applicant: HAMILTON SUNDSTRAND CORPORATION

Inventor： Yiwei Jiang ,  James Vandung Nguyen ,  Edward W. Goy

IPC: F02C7/27 ,  F16H57/08

Abstract: A starter for a gas turbine engine includes a rotor shaft rotatable about an axis and includes an inner bore extending from an axial end of the rotor shaft with respect to the axis. A sun gear is on the rotor shaft. A lock nut is received against an axial end face of the sun gear and threadedly engaged with an outer diameter of the rotor shaft. A retainer is positioned to bias the nut against the axial end face and includes a projection portion threadedly engaged with the rotor shaft in the inner bore. A bolt through the projection portion is threadedly engaged with the rotor shaft.

公开(公告)号：US10066552B2

公开(公告)日：2018-09-04

申请号：US15069420

申请日：2016-03-14

Applicant: Hamilton Sundstrand Corporation

Inventor： Yiwei Jiang ,  Michael R. Blewett

IPC: F02C7/32 ,  F16H57/025 ,  F01D25/28 ,  F16H57/028 ,  B64D27/26

CPC classification number: F02C7/32 ,  B64D2027/268 ,  F01D25/28 ,  F05D2260/30 ,  F05D2260/311 ,  F05D2260/36 ,  F05D2260/96 ,  F16H57/025 ,  F16H57/028

Abstract: A mounting link between an engine and a gearbox comprises an engine attachment piece, a gearbox attachment piece, and primary and secondary retention fasteners. The engine attachment piece is rotatably secured to the engine, and the gearbox attachment piece is rotatably secured to the gearbox. The primary retention fastener rigidly constrains the gearbox attachment piece with respect to the engine attachment piece in a single degree of freedom, but is configured to shear at a breakpoint load. The secondary retention fastener constrains the gearbox attachment piece loosely with respect to the engine attachment piece, and can withstand the breakpoint load. The gearbox attachment piece and engine attachment piece abut in a friction fit that provides Coulomb damping.

公开(公告)号：US20170260909A1

公开(公告)日：2017-09-14

申请号：US15069431

申请日：2016-03-14

Applicant: Hamilton Sundstrand Corporation

Inventor： Yiwei Jiang ,  Michael R. Blewett

IPC: F02C7/32 ,  F16H57/025

CPC classification number: F02C7/32 ,  F05D2260/30 ,  F05D2260/311 ,  F16H57/025

Abstract: A mounting link between a gas turbine engine and a gearbox comprises a gearbox arm, a fusibly breakable bolt, and two engine attachment brackets. The gearbox arm attaches to the gearbox, and extends along an axis defining a first dimension between the gas turbine engine structure and the gearbox. The fusibly breakable bolt extends through the gearbox arm, and has a central shear section that mates with the gearbox arm. The engine attachment brackets have primary and secondary retention annuli, and attachment flanges that attach to the gas turbine engine structure. The primary retention annuli are each concentric to an outer section of the fusibly breakable bolt, and have a radius selected to tightly retain those outer sections in the first dimension. The secondary retention annuli are each concentric to a portion of the shear section, and have a larger radius to loosely retain the shear section.

公开(公告)号：US20170260907A1

公开(公告)日：2017-09-14

申请号：US15069399

申请日：2016-03-14

Applicant: Hamilton Sundstrand Corporation

Inventor： Yiwei Jiang ,  Michael R. Blewett

IPC: F02C7/32 ,  F16H57/025

CPC classification number: F02C7/32 ,  F01D21/045 ,  F05D2230/60 ,  F05D2250/42 ,  F05D2260/30 ,  F05D2260/311 ,  F05D2260/36 ,  F05D2260/96 ,  F16H57/025

Abstract: A gearbox mounting link between a gas turbine engine structure and a gearbox mounting location comprises an engine attachment piece rotatably secured to the gas turbine engine structure. The engine attachment piece comprises first and second plates extending in parallel planes and separated by a gap having a gap width. A gearbox attachment piece is situated between the parallel plates, and is secured to the gearbox. A breakable primary retention fastener extends snugly through the parallel plates and the gearbox attachment piece, thereby rigidly retaining the gearbox with respect to the gas turbine engine in two degrees of freedom so long as the breakable primary retention fastener remains intact. A durable secondary retention fastener extending snugly through the parallel plates, and extends with clearance through the gearbox attachment piece via an oversized fastener passage, thereby constraining the gearbox attachment piece in the event that the breakable primary retention fastener breaks.