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Powerplant > Induction System > Flashcards

Induction System Flashcards

1
Q

What are the 2 types of induction systems?

A

Naturally Aspirated
&
Forced Induction

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2
Q

What is an Air Scoop?

A

The air scoop directs ram air to the fuel metering unit through the air filter

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3
Q

What are the 3 types of Air Filters?

A

Screen Wire
Paper
Polyurethane Foam

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4
Q

Is carburetor heat air filtered or unfiltered?

A

Unfiltered

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5
Q

What are the 3 types of icing?

A

Impact ice
Fuel evaporation ice
Throttle ice

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6
Q

What is the purpose of forced induction?

A

Allows sea level power to be maintained to a higher altitude

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7
Q

What is critical altitude?

A

Altitude at which an engine will no longer produce max continuous HP at max continuous RPM

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8
Q

What is a supercharger?

A

An air pump used to increase pressure of air going into the cylinders
(Builds pressure inside the engine’s induction system)

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9
Q

What does an internal system supercharger do?

A

Compresses the fuel/air mixture after the carburetor or fuel metering unit

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10
Q

What does an external system supercharger do?

A

Compresses the air charge before the carburetor or fuel metering unit

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11
Q

What is the main purpose of a supercharger?

A

Increase volumetric efficiency of the engine

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12
Q

What is a stage?

A

A change in compression
(Single stage
Two stage
Single speed
Two speed)

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13
Q

What is used to change the speed of the impeller in a Two Speed?

A

Oil Pressure

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14
Q

What type of supercharger is engine-driven?

A

Supercharger

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15
Q

What type of supercharger is driven by exhaust gases?

A

Turbochargers

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16
Q

What are the 3 main parts of a turbocharger?

A

Compressor assembly
Turbine assembly
Pump & bearing casing

17
Q

What controls the amount of exhaust gas that flows through the turbine?

A

The Waste Gate

18
Q

What does the intercooler do?

A

Decreases the temperature of compressed air to prevent detonation

19
Q

What does the differential controller do?

A

Senses pressure before & after the throttle plate
and controls waste gate at part throttle

20
Q

What does the density controller do?

A

Senses pressure before the throttle valve and controls waste gate at full throttle

21
Q

What does the waste gate actuator do?

A

Controls position of waste gate using oil pressure

22
Q

What is overboost?

A

Exceeding max MAP
(Detrimental to engine life)

23
Q

What is overshoot?

A

Momentarily exceeding desired MAP

24
Q

What is bootstrapping?

A

Variation in engine power that causes turbocharger output to vary when waste gate is fully closed

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