Power plants – Combustion products used as motive fluid
Patent
1984-02-03
1985-04-30
Casaregola, Louis J.
Power plants
Combustion products used as motive fluid
415178, F02G 300, F01D 1108
Patent
active
045135673
ABSTRACT:
Method for controlling the clearance between rotating and stationary components of a gas turbine engine are disclosed. Techniques for achieving close correspondence between the radial position of rotor blade tips and the circumscribing outer air seals are disclosed. In one embodiment turbine case temperature modifying air is provided in flow rate, pressure and temperature varied as a function of engine operating condition. The modifying air is scheduled from a modulating and mixing valve supplied with dual source compressor air. One source supplies relatively low pressure, low temperature air and the other source supplies relatively high pressure, high temperature air. After the air has been used for the active clearance control (cooling the high pressure turbine case) it is then used for cooling the structure that supports the outer air seal and other high pressure turbine component parts.
REFERENCES:
patent: 3039737 (1962-06-01), Kolthoff
patent: 3911354 (1975-10-01), Stanton
patent: 3914952 (1975-10-01), Barbier
patent: 3957391 (1976-05-01), Vollinger
patent: 3966354 (1976-06-01), Patterson
patent: 3975112 (1976-08-01), Brown et al.
patent: 3975901 (1976-08-01), Hallinger et al.
patent: 4005946 (1977-02-01), Brown et al.
patent: 4019320 (1977-04-01), Redinger et al.
patent: 4069662 (1978-01-01), Redinger et al.
patent: 4213296 (1980-07-01), Schwarz
patent: 4230436 (1980-10-01), Davison
patent: 4242042 (1980-12-01), Schwarz
patent: 4279123 (1981-07-01), Griffin et al.
patent: 4304093 (1981-12-01), Schulze
patent: 4317646 (1982-03-01), Steel et al.
Deveau Paul J.
Greenberg Paul B.
Paolillo Roger E.
Casaregola Louis J.
Friedland Norman
Thorpe Timothy S.
United Technologies Corporation
Walker Robert C.
LandOfFree
Gas turbine engine active clearance control does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Gas turbine engine active clearance control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gas turbine engine active clearance control will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1961900