Lm automobileEnggLab

AUTOMOBILE ENGINEERING LAB

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Auto-Lab-Manual

AUTOMOBILE ENGINEERING LAB
INSTRUCTION SHEET
EXPERIMENT NO. 9
Aim
To study and prepare report on the constructional details, working principles and operation of the following fuel supply systems a) Carburetor b) Diesel fuel injection system c) Gasoline fuel injection system
Theory
Labeled diagram, construction details, working principle and operation of the fuel supply systems
Functions of a carburetor
The main functions which a carburetor is required to perform are
1 To keep a small reserve of fuel at a constant head
2 To vaporize the fuel to prepare a homogeneous air fuel mixture
3 To supply correct amount or the air fuel mixture at the correct strength under all conditions of load and speed of the engine

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