Abstract
AbstractThe internal air and lubrication systems of gas turbines are described. The internal air system of a gas turbine distributes the air extracted from the main gas path at several axial locations in the compressors to ventilate and cool the engine components and to provide an axial pressure balance on the rotating components to control the axial loads on the bearings. Special fluid engineering and heat transfer technologies that are required for this task are described, including transfer of air through rotating orifices, transfer of the blade cooling air from passages in the engine case to the rotating turbine disks, cooling compressor disk cavities, controlling the sealing flow in the compressor, and controlling the ingestion of combusted gases from the turbine stages into the turbine disk cavities. The lubrication system provides pressurized oil to the bearing compartments that also receive buffer air and returns the oil‐air mixtures to the oil‐air separators and the oil reservoir.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
