Fuel Injection

Question 1

What are the two major fuel injection systems?

Answer 1

-Direct Fuel Injection
-Continuous-Flow Injection

Question 2

Which fuel injection system is not very commonly used?

Answer 2

Direct
(Fuel is injected directly into the combustion chamber)

Question 3

What is the most commonly used fuel injection system?

Answer 3

Continuous Flow
(Fuel is injected continuously into the intake port)

Question 4

What are the two types of fuel injection systems?

Answer 4

-Bendix
-Continental

Question 5

What are the 5 primary components in the Bendix (RSA) system?

Answer 5

-Venturi
-Fuel Metering
-Mixture Control
-Fuel Regulation
-Flow Divider

Question 6

What are the differences between the Bendix system and the Continental system? (Fuel injection)

Answer 6

Bendix
-Similar to pressure carbs
-Has 4 chambers for Venturi Air, Impact Air, Unmetered Fuel, Metered Fuel
-Has bellows and diaphragms

Continental
-Continuous flow system
-NO Venturi or bellows
-Has injector nozzles

Question 7

How do you determine the size of an injector jet?

Answer 7

-Fuel inlet pressure
-Maximum fuel flow
-Plus/minus 2%

Question 8

How can you identify the type of injection nozzle?

Answer 8

-Hex flat
-Single letter identifier

Question 9

Injector nozzles are interchangeable with cylinders and engines of the same type. True or False?

Answer 9

True