Overview of vehicle------ Engine Cooling System Lubrication System Drive-Train Electrical System Fuel System Exhaust/Emission System Braking System Ignition System Steering System Suspension System

1. OverviewOverview of Vehicleof Vehicle
By- Er. VED PRAKASH

2. CONTENTSCONTENTS
1) Engine
2) Cooling System
3) Lubrication System
4) Drive-Train
5) Electrical System
6) Fuel System
7) Exhaust/Emission System
8) Braking System
9) Ignition System
10)Steering System
11)Suspension System

3. ENGINEENGINE
An engine or motor is a machine designed to convert
one form of energy
Into mechanical energy.
•Combustion Chamber
•Cylinder Head
•Piston
•Crankshaft
•Camshaft
•Valve train
•Valves
•Short-Block
•Timing Belt, chain, gears

4. COOLING SYSTEMCOOLING SYSTEM
A vehicle’s engine-cooling system serves not just to keep the
engine cool, but to also keep its temperature warm enough to
ensure efficient, clean operation.
•Radiator
•Fan
•Hoses
•Thermostat
•Water Jackets
•Coolant
•Water pump
•Reserve Tank
•215°F - 235°F

5. LUBRICATION SYSTEMLUBRICATION SYSTEM
Designed to reduce friction between moving parts. By
reducing friction, engine temperature drops, hence lowering
wear on the moving parts.
Grease
Oil
•Oil Pump
•Oil Pan
•Oil Filter
•Oil Gauge
•Oil Galleries

6. DRIVE-TRAINDRIVE-TRAIN
The drive-train of a motor vehicle is the group of components
that deliver power to the driving wheels.
It varies the torque applied to the drive wheels, depending
on load.
Transmission
Axles
Drive shaft
Differential

7. DRIVE-TRAINDRIVE-TRAIN

8. ELECTRICAL SYSTEMELECTRICAL SYSTEM
Produces, stores, and distributes electricity for the numerous
electrical devices which contributes to the operation of the
total vehicle.
•Stores Power - Battery
•Produce Power -Alternator
•Starter
•Wiring Harness

9. FUEL SYSTEMFUEL SYSTEM
The function of the vehicle fuel system is to store and supply
fuel to the engine.
Correct Air to Fuel ratio is 14.7 : 1 (Stoichiometric Ratio)
Four common fuels:Patrol
Diesel
Propane (LPG)
Natural Gas (Compressed Natural Gas)
•Fuel Pump
•Injectors
•Carburetor
•Fuel Tank / Lines
•Fuel Filter
•Distributor
•Regulator
•ECM

10. EXHAUST / EMISSIONEXHAUST / EMISSION
SYSTEMSYSTEM
Removes the Exhaust gases from the engine, Muffles the
sound, Cleans and cools the burned gases before they enter the
atmosphere.
•Headers / Exhaust manifold
•Muffler
•Catalytic Converter
•Exhaust Pipes
•Resonator

11. BRAKING SYSTEMBRAKING SYSTEM
A brake is a mechanical device that inhibits motion by
absorbing energy from a moving system. It is used for slowing
or stopping a moving vehicle, wheel, axle, or to prevent its
motion, most often accomplished by means of friction.
•Converts kinetic Energy into Heat.
•Wheel cylinder, Shoes, Drums – Rear
•Caliper, Pads, Rotors – FRONT
•Master Cylinder
•Brake Fluid
•Lines / Hoses

12. IGNITION SYSTEMIGNITION SYSTEM
An ignition system generates a spark or heats an electrode to a
high temperature to ignite a fuel-air mixture in
spark ignition internal combustion engines oil-fired and gas-
fired boilers, rocket engines, etc. Provides spark for the Patrol,
CNG and LPG Engines.
•Sparkplugs
•Distributor
•Sparkplug wires
• Ignition Switch
•Ignition Coil
•Converts 12 volts
to 60,000 volts

13. STEERING SYSTEMSTEERING SYSTEM
Steering is the collection of components, linkages, etc. which
allows any vehicle (car, motorcycle, bicycle) to follow the
desired course. The primary purpose of the steering system is
to allow the driver to guide the vehicle(Controls the direction
of the vehicle).
•Steering Wheel
•Steering Gear Box
•Power steering Pump
•Steering Linkage
•Rack-and-pinion
•Tie rod
•Idler arm

14. SUSPENSION SYSTEMSUSPENSION SYSTEM
Suspension is the system of tires, tire air, springs, shock
absorbers and linkages that connects a vehicle to its wheels
and allows relative motion between the two.
•Struts
•Shocks
•Springs
•Control arms
•Ball Joints
•Knuckle
•Damper

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