Internal Combustion Engines

A(n) _____ is a device that changes the chemical energy in fuel to mechanical energy.

• camshaft

• piston

• engine

• cylinder

Match the following

• Piston

• An engine part that slides back and forth in a cylinder

• Crankshaft

• An engine part that converts reciprocating motion created by the engine pistons to rotating motion

• Cylinder

• The bore in which a piston travels

• Connecting rod

• An engine part that links a piston to the crankshaft

Reorder the following events that occur in an internal combustion engine.

• Power

• Intake

• Compression

• Exhaust

A _____ refers to the full travel of the piston in the cylinder.

• stroke

• jet

• piston

• venturi

A _____ is a device used to store rotational energy.

• camshaft

• jet

• piston

• flywheel

The _____ is a lobed shaft that is used to open and close the valves.

• camshaft

• jet

• crankshaft

• flywheel

Four-stroke engines are commonly installed on handheld power equipment due to their smaller size and reduced weight.

• True

• False

In some two-stroke engines, the _____ prevent the air-fuel mixture from being forced back out through the intake port during the power stroke

• comshafts

• carburators

• pistons

• reed valves

Camshaft

Connecting rod