Induction System

Question 1

Why is air important?

Answer 1

Air acts as an oxidizer. It combines fuel with oxygen. This is necessary in order to create a combustible gas.

Question 2

What do you need for combustion?

Answer 2

Air (oxygen), combustible fuel(fuel), spark(ignition)

Question 3

Purpose of the induction system

Answer 3

To provide a system for air, from the atmosphere, to enter the engine and in the process, become mixed with fuel at the proper ratio.

Question 4

Types of induction systems

Answer 4

Normally aspirated, supercharged, and turbocharged.

Question 5

Induction system of reciprocating engine

Answer 5

Has an air scoop used to collect the inlet air and ducting that transfers the air to the inlet filter. The air filter is generally housed in the carburetor heat box or other housing and is attached to the carburetor or fuel injection controller. After air
Asses through the fuel metering device, an intake manifold with long curved pipes or passages is used to send the fuel/air mixture to the cylinders.

Question 6

Fuel metering

Answer 6

To meter fuel proportionally to air to establish the proper fuel/air mixture ration for the engine at all speeds and altitudes at which the engine maybe operated.

Question 7

Methods of fuel metering

Answer 7

Float type carburetor, pressure injection carburetor, fuel injection systems.

Question 8

Naturally aspirated induction system components

Answer 8

Air scoop, air filter, alternate air valve/source of heat,fuel metering device, and induction manifold.