Patent ID: 6550253
Filing Date: 2003-04-22
Classification: F01D,F02C,F05D

Abstract:
A method for controlling flow in turbomachinery, comprising the steps of:establishing a first fluid flow in the turbomachinery and flowing the first fluid flow to a first site on the turbomachinery; establishing a second fluid flow in the turbomachinery at a pressure and temperature lower than the pressure and temperature of the first flow and flowing the second fluid flow to a second site on the turbomachinery; selectively combining at least a portion of the second flow with said first flow through a crossover path to provide a third fluid flow to said first site at a pressure and temperature intermediate the pressure and temperature of said first and second flows, respectively; sensing a characteristic of the flow through the crossover path; and controlling the flow through the crossover path in accordance with the sensed flow characteristics of the flow through the crossover path.