Patent ID: 8251643
Filing Date: 2012-08-28
Classification: F01D,F05D

Abstract:
1. A steam turbine comprising: a rotor including: a first rotor section having a first axial end face with a first flow passage and a separate second flow passage; a second rotor section having a second axial end face with a first flow passage and a separate second flow passage, the second rotor section disposed axially adjacent and circumferentially rotated to the first rotor section so that the second axial end face faces the first axial end face so that each of the first flow passages in the two rotor sections line up to make a first continuous passage and each of the second flow passages in the two rotor sections line up to make a second continuous passage, wherein the first continuous passage and the second continuous passage are separated at an interface of the two rotor sections, and wherein a flow from the first continuous passage does not interact in the rotor with a flow from the second continuous passage; and a passage system formed in the rotor, the passage system including: