On Jan 19, 12:41 pm, Mxsmanic wrote:
RST Engineering writes:
If I'm not mistaken, and it has been forty some years since I've bent a
wrench on the torch so I may well be, the pressurization comes from the
compressor section and not the turbine section.

All of those rotating things with blades are turbines.

Only to those who have no idea of the proper terminology.
The turbine is the section that extracts power from the hot, high-
velocity gases and uses it to drive the compressor. It also drives the
fan in a turbofan, or the propeller in a turboprop, or the output
shaft in a turboshaft engine (APUs, helicopters, and some marine
applications.Probably lots more, especially military stuff.) Anything
else rotating with blades is part of the compressor section, or the
fan.
See: http://www.grc.nasa.gov/WWW/K-12/airplane/turbdraw.html

Dan