Induction + Engine Airflow Flashcards
A non-supercharged reciprocating engine is called what?
Naturally aspirated.
The types of air intake filters:
1) Metal screen covered with flock.
2) Pleated paper filters
3) Polyurethane foam
T/F
Polyurethane foam filter elements can be cleaned and reinstalled.
False.
They must be replaced when removed.
If converting an aircraft engine to foam filtering, what is required?
Form 337 for an Alteration.
Which type of filter(s) can be cleaned?
1) Flock type.
2) Pleated paper.
Forms of induction system ice:
1) Throttle ice.
2) Fuel discharge Venturi ice.
3) Front of the air filter icing.
Carburetor heat is obtained how?
By passing induction air around part of the exhaust system.
When should carburetor heat NOT be used?
When aircraft is on the ground.
When the carburetor heat control is in the HOT position the incoming air is ________.
Unfiltered
What is the purpose of the supercharger?
To allow the aircraft to reach higher altitudes by increasing air pressure before it enters the cylinders.
Superchargers are ______-driven.
Gear.
Turbochargers are _________-driven.
Exhaust gas.
A ________ is the controllable butterfly valve that determines the amount of exhaust gases that can leave the exhaust pipe.
Waste gate.
When the waste gate is open, the speed of the turbocharger ________.
Reduces.
The altitude above which a reciprocating engine will no longer produce its rated horsepower:
Critical altitude.
Four types of Continental turbocharger controllers:
1) Absolute pressure controller.
2) Pressure ratio controller.
3) Rate of change controller.
4) Variable absolute pressure controller.
_________ is also know as turbocharger discharge pressure.
Upper deck pressure.
If there is no oil pressure, the waste gate will remain in what position?
Open
The bellows in the absolute pressure controller (APC) senses what pressure?
Upper deck pressure
At high upper deck pressures the APC bellows collapses and _______ (opens/closes) the connected valve
Opens
When the absolute pressure controller valve opens, what does the waste gate do?
Opens
A _______ eliminates the pilot’s need to manually maintain the safe critical altitude for the engine.
Pressure ratio controller
The pressure ratio controller senses _______ and _______ pressures.
1) Ambient air pressure.
2) Upper deck
If upper deck pressure exceeds _____ times the ambient pressure the pressure ratio controller valve will ______.
2.2
Open.
The Textron-Lycoming components similar to the APC and pressure ratio controllers are the ______ and the ______.
Density controller.
Differential pressure controller.
Define bootstrapping in terms of the turbocharger:
A transient increase in engine power that causes the turbo to speed up, which in turn causes the engine to produce more power.
The differential pressure controller senses ______ and ______ pressures.
Upper deck.
Manifold.
Aside from providing air for combustion, upper deck air is additionally used for:
Cabin pressure.
Fuel injection pumps.
The turbine inlet is intended to ______, ______ and ______ incoming air.
Slow, compress and smooth.
