Carburettor Flashcards
What delivers the fuel to the engine ?
Fuel pump, propelled from the tank through a filter
What is a carburettor?
Device that mixes air and fuel for petrol fueled internal combustion engines in the proper air to fuel ratio
Carburettors are classified according to the direction of flow which are ..
Downdraft
Side draft
Up draft
The function of a carburettor is to?
Mix the fuel and air
Control the quantity of mixture to the engine throughout its operating range
The carburettor turns liquid fuel into what
Vapour
What 3 principles does the carburettor use ?
The U-tube
Bernoulli’s principle
Venturi principle
What is a U shaped tube ?
When filled with liquid can measure pressure differences
What principles does the choke carburettor use?
Bernoulli’s principle
The Venturi effect
What are the 4 main components of a fuel system?
The fuel tank, fuel line, fuel pump
and the carburettor
What two types of mixtures are there ?
A rich and weak mixture
When is a rich mixture required ?
When the engine is starting from cold, when more power is required under acceleration and heavy loads