Patent ID: 7036198
Filing Date: 2006-05-02
Classification: F02M,H01L,Y10T

Abstract:
1. A method of assembling a piezoelectric actuator arrangement comprising: providing a piezoelectric element having first and second ends; arranging the piezoelectric element within a sleeve member such that the inner surface of the sleeve member and the outer surface of the piezoelectric element together define, at least in part, a chamber for receiving a first filler material; injecting the first filler material into the chamber; applying a heating effect to the sleeve member to deform the sleeve member; and sealing the sleeve member against the first filler material, further comprising degassing the first filler material following injection thereof into the chamber so as to substantially remove any unwanted air or gas from the first filler material and injecting a second filler material into the sleeve member prior to injection of the first filler material so as to fill any recesses or pockets within the sleeve member with the second filler material which may otherwise trap air or gas during injection of the first filler material, wherein the second filler material has a relatively high viscosity compared to the viscosity of the first filler material.