Term
The
gearbox mounted accessory drive (GMAD)supplies the pads and drives for which components? |
|
Definition
the AC generator,
hydraulic pump, PGB lube and scavenge pump, propeller pitch control unit (PCU), and propeller overspeed governor (OSG) and
high pressure pump |
|
|
Term
| What connects the PGB to the Engine? |
|
Definition
|
|
Term
| What are the primary functions of the PGB? |
|
Definition
To transmit shaft power from the torquemeter to the propeller, reduce shaft
RPM, and supply shaft power to the GMAD gear train. |
|
|
Term
| How many stages of reduction are there in the PGB? What are there ratios? And what is the total reduction? |
|
Definition
2
The first stage reduction ratio is 3.226:1 and the second stage reduction is 4.333:1,
total reduction ratio of 13.98:1 |
|
|
Term
| What are the primary functions of the torquemeter assembly? |
|
Definition
to transmit engine output power to the PGB, to provide
alignment and structural support between the power section and PGB, and to supply a calibrated torque reference to the full authority
digital electronic control (FADEC). |
|
|
Term
| How is engine torque measured? |
|
Definition
By two torquemeter pickups that monitor the angular deflection (twist) that occurs in the torquemeter shaft in relation to
the zero deflection of the reference shaft |
|
|
Term
| What is the Torquemeter shaft? |
|
Definition
It is a steel shaft that has splines at both ends to transmit power from the power
turbine drive shaft to the PGB |
|
|
Term
| What is the torquemeter housing? |
|
Definition
It is a titanium structure that surrounds the calibrated shaft assembly. The
housing has flanges at the front and the rear that are bolted to the PGB housing and to the compressor air inlet housing to give
structural support. |
|
|
Term
| What is the Anti-Icing shroud? |
|
Definition
It is a cover for the torquemeter assembly to allow for anti-icing air. The anti-icing
shroud allows for the flow of warm anti-icing air to prevent ice from forming on the torquemeter assembly. |
|
|
Term
| How many stages of compression are there in the AE2100D3 Enging? |
|
Definition
|
|
Term
| What is The power unit accessory drive (PUAD)mounted to? |
|
Definition
the
bottom of the air inlet housing |
|
|
Term
| The outer diameter of the air inlet housing has mounting pads for which components? |
|
Definition
the PGB to
power section struts, compressor inlet temperature (CIT) sensor, compressor inlet pressure (CIP) sensor, CIP manifold, anti-icing
air manifolds, and the CVG system. |
|
|
Term
Where is the GMAD mounted?
|
|
Definition
|
|
Term
| What components make up the Power Turbine Assembly? |
|
Definition
The power turbine balance rotor,
power turbine case, and the rear turbine bearing support. |
|
|
Term
| What supplies mounting locations for the 16 measured gas temperature (MGT) thermocouple assemblies |
|
Definition
|
|
Term
| Where are the No. 5 bearing and aft oil sump housed? |
|
Definition
| The rear turbine bearing support assembly. |
|
|
Term
The PUAD supplies
the mounting flanges for which components? |
|
Definition
| the FPMU, alternator stator, starter, and the power unit lube and scavenge pump |
|
|
Term
| What does the Nacelle structure consist of? |
|
Definition
| A vertical fire wall, nacelle access doors, and an engine mount. It also provides, through louvers and scoops, cooling air flow for the engine, accessories, and tailpipe ejector |
|
|
Term
| Which components drain their fluids through the drain mast? |
|
Definition
The starter, FPMU, fuel drain manifold,
CVG actuator, propeller shaft, and hydraulic pump seal drains |
|
|
Term
| What controls the Fuel system? |
|
Definition
|
|
Term
| The engine fuel system consists of how many subsystems? What are they? |
|
Definition
| It consists of three subsystems: distribution, controlling, and indicating |
|
|
Term
What are the functions
of the FPMU? |
|
Definition
| to pump, filter, and meter fuel; provide fuel filter bypass indication and fuel pressure; and move the CVG actuator |
|
|
Term
| How many fuel nozzles are there and what are they mounted to. |
|
Definition
| There are 16 fuel nozzles mounted to the diffuser |
|
|
