Engine Components Flashcards

1
Q

What houses the crank shaft and cam shafts

A

Crankcase

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2
Q

What is the cankcase usally made of

A

Aluminium alloy

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3
Q

How is the crankcase usually made

A

Forged or casted

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4
Q

What usually carries the engine mounts for fitment to the airframe

A

The crankcase

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5
Q

What component converts combustion energy to mechanical energy

A

The pistons

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6
Q

Why do the pistons convert combustion energy to mechanical energy

A

To drive the crankshaft

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7
Q

What provides a gas tight seal between the piston and the cylinder

A

The piston (compression) ring

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8
Q

What are the rings fitted below the compression piston ring used for

A

Oil control.

Scrape lubricant (oil) from cylinder walls to prevent entering the combusion chamber.

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9
Q

Why would blue or black smoke be coming out of your exhaust

A

Burning oil.

If oil has leaked into the combustion chamber and you are burning oil.

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10
Q

If oil has leaked into the combustion chamber what does this mean for your oil consumption.

A

It will increase.

Meaning you might need more oil depending on severity of leak. 

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11
Q

What does the cylinder house

A

The pistons.

Privides the (cylinder) bore in which the piston moves

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12
Q

What acts as the compression and expansion chambers

A

The cylinders

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13
Q

What do the cylinders act as

A

the compression and expansion chambers

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14
Q

What does the cylinder head seal

A

The top of the cylinder from the combustion chamber

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15
Q

What seals the top of the cylinder from the combustion chamber

A

The cylinder head

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16
Q

What does the cranshaft convert

A

The reciprocating motion of the pistons to rotary motion

17
Q

Why does the crankshaft convert the reciprocating motion of the pistons to rotary motion

A

To drive the propeller

18
Q

What converts the reciprocating motion of the pistons to rotary motion

A

The crankshaft

19
Q

What connects the pistons to the crankshaft

A

The connecting rods

20
Q

What do the connecting rods connect

A

The pistons to the crankshaft

21
Q

What dives the cam shaft

A

The crankshaft

22
Q

What is the speed of the cam shafts

A

Half the speed of the crankshaft

23
Q

What does the cam shaft control

A

The opening and closing of the inlet and exhaust valves.

Valve timing

24
Q

What controls the opening and closing of the inlet and exhaust valves.

A

The camshaft

Valve timing

25
Q

What assembly opens each valve

A

The push rod and rocker assembly.

Involves the valve springs

26
Q

How are the valves closed

A

By the valve springs.

Timed by the cam shaft. When it roates off its lobe. The springs stretch back which closes the valve.

27
Q

Can u have double valve springs

A

Yes.

Are oftern used to provide more rapid and positive valve closing as well as eliminating valve bounce.