RevisionC-Developmentofconceptofcompressorforcommercialvehicle

3 POSSIBLE APPLICATION OF COMPRESSOR IN VEHICLE
3.1 Introduction
Identifying the usage area of compressed air in a commercial vehicle:
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Used to control vehicle using pneumatic braking system (Air Braking system),
Used in trailer controlling equipment (Trailer Control valves),
Suspension system,
Also used in alert system to inform driver about various systems on the truck,
As the designing of this compressor is for commercial vehicles introduction to the
commercial vehicle components where this compressed air from the compressor is required and
going to be used should be defined.
This study also provides us with the design inputs for this air compressor. As commercial
vehicles are large in size and heavy in weight, hence there is requirement of pneumatically
controlled devices to control the system of a commercial vehicle. System other than the
pneumatic controlled are not much capable to control such heavy load and size. There are some
alternates of the pneumatic controlled systems on a commercial vehicle but they will add a huge
cost to the overall price of the truck/bus. And also, can’t fully satisfy the requirement of the vehicle.
This type of system is not used in small vehicles as to manufacture pneumatic controlled system
for small vehicle is not cost effective and also it is huge in size for a small vehicle, it will add a lot
of weight.
3.2 Air Braking System
In the (Fig. 2.3) we can see the overall circuit of an air braking system. Each component
of an air braking system is dependent on the compressed air and hence dependent on the
compressor. All the problems with compressors can affect on the breaking failure of the vehicle
that is a huge safety factor. So, compressor is always ensured to build continuous pressure for
the air braking circuit. Below are some of the important components of an air braking system. [6]
3.2.1 Air Dryer
Air dryer is usually the first component after the compressor in the air braking circuit
system.
The basic function of air dryer:
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To remove humidity from air, purify the air coming from the compressor, i.e
drying air.
To control air pressure in the tanks.
To provide signal to the compressor for start and stop of work.
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