Patent ID: 7594623
Filing Date: 2009-09-29
Classification: B64C,B64D,B64F,F02C,Y02T

Abstract:
1. An engine mounting system for use in rotorcraft having a rotor, a pylon assembly, a transmission coupled to the pylon assembly, and an engine, the engine mounting system comprising: a forward mount for coupling the engine to the transmission, the forward mount having selected physical characteristics and comprising: an aft mount for coupling the engine to the pylon assembly; wherein the forward mount is configured, such that a contribution from the engine to the dynamic response of the engine mounting system is determined by a selected physical characteristics of the flexure region; wherein the aft mount comprises: wherein the aft mount is configured to avoid reaction of torque, such that only the forward mount reacts torque, thereby eliminating torsional redundancy in the engine mounting system, so as to thereby prevent torque from the rotor from being induced into the engine by the aft mount.