Method of manufacturing a rotor assembly

Claim 1

A METHOD OF FABRICATING A ROTOR ASSEMBLY COMPRISING THE STEPS: APPLYING A LAYER OF ADHESIVE THEREMOSETTING EPOXY RESIN MATERIAL IN AN UNHARDEDNED STATE ONTO A SHAFT AT A PREDETERMINED POSITION ON THE SHAFT; ASSEMBLING THE SHAFT HAVING SAID LAYER THEREON WITH A PREHEATED AND EXPANDED LAMINATED ROTOR CORE; BOTH BEING POSITIONED GENERALLY VERTICALLY AND RELATIVELY RADIALLY MOVABLE TO ONE ANOTHER, AND AT LEAST ONE THRUST TRANSMITTING MEMBER DISPOSED ADJACENT THE CORE, SAID CORE COMPRISING A PLURALITY OF SECURED TOGETHER SUPERPOSED LAMINATIONS INCLUDING A SHAFT RECEIVING BORE EXTENDING AXIALLY THERETHROUGH, SAID CORE AND THRUST MEMBER EACH HAVING A LOOSE FIT RELATIVE TO THE SHAFT UNDER AMBIENT CONDITIONS AND BEING POSITIONED OVER THE UNHARDENED LAYER, SAID PRE-HEATED CORE BEING HEATED ABOVE THE TEMPERATURE OF THE SHAFT AND THE TEMPERATURE AT WHICH THE ADHESIVE MATERIAL BECOMES FLUID THEREBY FURTHER ENLARGING THE BORE OF THE CORE TO A DIAMETER DIMENSIONALLY GREATER THAN THE COMBINED TRANSVERSE DIMENSION OF THE UNHARDENED MATERIAL AND SHAFT; REDUCING THE SIZE OF THE BORE BY COOLING THE CORE AND CHANGING THE FORM OF THE UNHARDENED ADHESIVE MATERIAL BY TEH LATENT HEAT OF THE CORE, WITH THE UNHARDENED ADHESIVE MATERIAL INITIALLY BECOMING FLUID AND TENDING TO CENTER THE SHAFT RELATIVE TO THE CORE, AND WITH A PORTION OF THE ADHESIVE MATERIAL BEING SQUEEZED RADIALLY OUTWARD TO PENETRATE SLIGHTLY BETWEEN NEXT ADJACENT LAMINATIONS NEXT TO THE BORE; AND CURING THE MATERIAL BY USEING THE LATENT HEAT OF THE CORE WHEREBY THE SHAFT, THRUST MEMBER, AND CORE ARE SECURED TOGETHER IN A PREDETERMINED UNITARY RELATIONSHIP BY THE CURED THERMOSETTING MATERIAL.