This document describes a system for increasing fuel efficiency in two-wheeler engines by using preheated air. The system works by using the engine's exhaust and silencer to heat incoming atmospheric air before it enters the carburetor. This improves the fuel-air mixture and increases engine efficiency, leading to benefits like improved mileage, increased power, and fuel savings. However, the installation cost of this system is high.

1. FUEL EFFICIENCY INCREASING SYSTEM BY USING
AIR PREHEATED SYSTEM
SYNOPSIS
Here we fabricate the model of fuel efficiency increasing system by
using air preheated system. The two wheeler engine is an internal
combustion engine. It is a device, which converts the thermal heat energy
from exhaust and converts it to air preheat. And also the atmospheric air
inlet is fixed over the silencer for intake the hot air to carburetor.

2. WORKING PRINCIPLE
The project consists of an engine kit, silencer, carburetor, and a heat
absorber. When the engine runs, the silencer gets heated up due to hot
exhaust gas. At the time the intake air from the atmosphere gets heated
when it passed over the silencer and the hot air send to the carburetor. By
using this we get good fuel mixture and high efficiency.
ADVANTAGES
 Improved mileage
 Increases engine power
 Fuel saving.
DISVANTAGES
 Installation cost is high
APPLICATION
Applicable in all vehicles.

3. FUEL EFFICIENCY INCREASING SYSTEM BY USING
AIR PREHEATED SYSTEM