Rolls Royce RB211 modules

[tonyjms2005]

Hello
I have an interview coming up and I just wanted to brush up on my knowledge on aircraft and engines.

I know the RB211 is a modular construction, but I used to know what each module is for sure, but that was a long time ago.

Could anyone please confirm if I have this correct:

Module number : description
01: LP fan
02: IP compressor
03: HP compressor
04: Combustion chamber plus HP turbine
05: IP turbine
06: LP turbine
07: Gearbox

Thanks in advance.

Antony

[spannersatcx]

The basic Engine is assembled from seven primary units (Modules)
which can be removed and installed quickly. The Modules are
identified below:-
• LP Compressor Rotor (31)
− Contains 1 stage of Compressor
• IP Compressor (32)
− Contains 7 stages of Compressor
• Intermediate Case (33)
− Contains 3 Location Bearings (Thrust Bearings) and load
structure
• HP System (41)
− Contains 6 stages of Compressor, Annular Combustion
Chamber and a single stage HP Turbine.
• IP and LP Turbine (51)
− Contains a single stage IP Turbine and 3 stages of LP Turbine
• High Speed External Gearbox (61)
• LP Compressor Case (34)

from 744 -524 notes, although later I believe they refer to them as 01, 02 etc.

[quinkytube]

Tonyms

An extract of RB211-534 training notes

The engine has these seven major modules:
- 01 - LP compressor (fan)
- 02 - IP compressor
- 03 - intermediate case
- 04 - HP system
- 05 - IP and LP turbine
- 06 - gearbox
- 07 - fan case.
And the B757 AMM
2. Component Details
A. The engine is a high by-pass ratio, three shaft turbofan, consisting of a fan system (cold stream) and
a gas generator (hot stream). The engine being of modular structure consists of the following
modules (Table 2):
Table 2/72-00-00-993-802-R00 Engine Modules
(1) LP rotor 01
(2) IP compressor 02
(3) Intermediate case 03
(4) HP system (HP compressor, combustion and HP turbine)
(5) IP/LP turbine (IP turbine, LP turbine and exhaust case)
(6) High speed external gearbox 06
(7) LP compressor case 07

Regards