Patent ID: 8465373
Filing Date: 2013-06-18
Classification: F16D,Y10T

Abstract:
1. A gas turbine engine, comprising: a first component; a second component; and a face coupling structured to transmit a torque load from said first component to said second component, said face coupling including: a plurality of driving teeth extending axially from said first component, each driving tooth having a driving tooth pressure surface and a driving tooth tip edge adjacent to the driving tooth pressure surface; and a plurality of driven teeth extending axially from said second component, each driven tooth having a driven tooth pressure surface, wherein said plurality of driving teeth and said plurality of driven teeth are structured to cooperate to transmit said torque load from said first component to said second component via driving tooth pressure surfaces acting against driven tooth pressure surfaces; and wherein said plurality of driven teeth include a first root transition structured to prevent said driving tooth tip edge from contacting an adjacent driven tooth; wherein said first root transition includes a root recess having an undercut in the flank of said adjacent driven tooth.