Patent ID: 8312727
Filing Date: 2012-11-20
Classification: F02M

Abstract:
1. A fuel injector assembly for a gas turbine engine comprising a fuel supply member for providing fuel to a nozzle of the fuel injector, and a damper operatively connected to the fuel supply member for damping movement of the fuel supply member, wherein the damper is operable to apply a variable damping force to the fuel supply member as a function of the frequency of movement of the fuel supply member, wherein the fuel supply member and damper are supported in a chamber of a housing of the injector, and wherein the damper further comprises a plunger member configured to move in response to movement of the fuel supply member, the plunger member engaged by a variable friction member configured to increasingly frictionally engage the plunger member in response to vibration of the fuel supply member above a prescribed frequency, wherein one end of the plunger member is engaged with a surface of the fuel supply member.