Patent ID: 6913441
Filing Date: 2005-07-05
Classification: F01D

Abstract:
1. A method for clocking a blade ring containing a plurality of airfoils relative to another row of airfoils comprising the steps of: (a) providing an outer casing having an elongated hollow body, an outer peripheral surface and an inner peripheral surface, the outer casing having a first set of openings and a second set of openings, each of the openings extending between the outer peripheral surface and the inner peripheral surface of the outer casing; (b) providing a blade ring disposed inside of the outer casing, the blade ring having an inner peripheral surface and an outer peripheral surface, the blade ring including a plurality of airfoils attached to the inner peripheral surface and a plurality of notches in the outer peripheral surface; (c) providing a plurality of pins inserted through the first set of openings in the outer casing and engaging at least some of the notches in the outer peripheral surface of the blade ring such that the blade ring is substantially fixedly held within the outer casing; (d) providing a plurality of roller pins, each of the roller pins having a roller at one end; (e) inserting the plurality of roller pins through the second set of openings such that the roller of each of the roller pins engages the outer peripheral surface of the blade ring; and (f) disengaging the pins from the notches in the outer peripheral surface of the blade ring, whereby the blade ring is held in position and supported by the plurality of roller pins.