公开(公告)号：US20180010521A1

公开(公告)日：2018-01-11

申请号：US15202155

申请日：2016-07-05

Applicant: Hamilton Sundstrand Corporation

Inventor： Matthew Allen Slayter ,  Richard Alan Davis ,  Paul F. Fox ,  Jeffrey Todd Roberts ,  Jeff A. Brown ,  James Vandung Nguyen ,  Benjamin T. Harder ,  Dwayne Leon Wilson ,  Brian McMasters ,  Daniel Richard Walker

IPC: F02C7/268 ,  F01D15/12

Abstract: A motoring system for a gas turbine engine having: a reduction gear train having an input and output; a motor operably connected to the input; a clutch operably connected to the output, the clutch in operation engages and disengages the reduction gear train; and a pinned mechanical fuse operably connecting the output to the clutch, the pinned mechanical fuse having at least one shear pin. The pinned mechanical fuse having: an outer sleeve having a first section, second section, inner chamber, outer wall, and at least one through hole connecting the inner chamber to the outer wall within the first section; and an inner sleeve having a first portion, second portion, outer surface, and at least one blind hole located in the outer surface within the second portion. The second portion being located within the inner chamber and operably connected to the outer sleeve through at least one shear pin.