EFFECTIVITY
ALL CFM56 ENGINES
CFMI PROPRIETARY INFORMATION
CFM56-ALL TRAINING MANUAL
BASIC ENGINE
PARTICULARS
BORESCOPE INSPECTION
Page 38
Sep 03
THE HIGH PRESSURE TURBINE (HPT) & STAGE 1
LPT NOZZLE
(ALL) :
The HPT converts the kinetic energy of gasses from the
combustion chamber into torque to drive the HPC and it
is housed in the combustion case.
It is a single-stage assembly that consists of :
- the HPT nozzle.
- the HPT rotor.
- the HPT shroud and stage 1 LPT nozzle.
The HPT nozzle is made up of segments which consist of
vanes brazed onto inner and outer platforms.
The forward inner and outer platforms are pushed by
springs against the combustion case inner and outer
liners. The vanes rear outer platforms are pushed against
the shroud support by spring-loaded clips.
The HPT rotor is a single stage assembly housed in the
combustion case and consists of individual replaceable
blades with dovetail roots that slide into slots on the outer
rim of a disk.
The HPT shroud and stage 1 LPT nozzle assembly forms
the connection between the core section and the LPT
module.
Stage 1 LPT nozzle is housed within the combustion
case, and consists of an assembly of vane sectors. It
features trailing edge slots for cooling purposes.
To Next Page
Loading...
Need help?
General
