Patent ID: 6705829
Filing Date: 2004-03-16
Classification: F01D

Abstract:
An axial flow turbine including a rotor and turbine blades coupled to said rotor for converting at least a portion of energy available from a working fluid into mechanical energy, comprising:a diaphragm for circumferential disposition around the rotor for directing at least a portion of said working fluid onto said blades, said diaphragm including a plurality of spaced apart nozzles forming a respective plurality of channels therebetween, an inlet casing for conducting working fluid to an upstream end of said diaphragm, said diaphragm protruding into said inlet casing to define a step, and a cover extending between a wall of said inlet casing and an upstream end of said diaphragm, said cover defining a gradual transition between the inlet casing wall and the upstream end of the diaphragm.