Power plants – Combustion products used as motive fluid – Combustion products generator
Patent
1987-06-30
1988-11-22
Stout, Donald E.
Power plants
Combustion products used as motive fluid
Combustion products generator
60 3907, 60 3983, 415127, 13762531, F02C 712
Patent
active
047856246
ABSTRACT:
A turbine engine, having a cooling passage diverting a part of the airflow from the turbine compressor for impingement upon the turbine blades, includes a concentric pair of apertured rings disposed in the passage for variably obstructing flow through the cooling passage between zero and a maximal value. One of the rings is fixed to the turbine housing, while the other of the rings is rotatable with respect to the first ring and the housing. The mobile ring can be rotated by a pressurized cylinder and piston assembly, or by a biasing device causing abutment of a stop on the second ring against an abutment surface on a cam. The cylinder and piston are actuated, or the cam is rotated, in dependence upon an engine operating characteristic such as engine speed, pressure, temperature, flight condition or other determinable parameter.
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Peregoy Quentin Z.
Richardson George E.
Smith Raymond
Stout Donald E.
Teledyne Industries Inc.
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