fly wheel

It saves the power in other strokes. The fly wheel is a heavy steel wheel attached to the rear end of crankshaft. the engine delivers power during power stroke.The engine tends up to speed up. The other stoke are dead strokes where they absord power. The flywheel absorbs the energy in power stroke due to inertia and delivers the energy in dead strokes.. thus the fly wheel keeps the engine at constant ratio 

single cylinder and multicylinder engine

Power output is more uniform in case of multicylinder engines due to increase in frequency of power impulses with the increase in the number of cylinders. As number of cylinders increases, torstional, vibration.

hydraulic accumulator

a hydraulic accumulator is a device which is used in fluid power circuits to stroke fluid under pressure.

viscosity

it is the property of opposition to flow of liquid.

hydraulics

It deals with the study of physical behaviour of liquids at rest as well as in motion.

paper industry

                                                                paper industry
paper industry: In production of paper , the pulp must pass through many stages of continuous web flow. Throughout the paper mills. pneumatic power devices may be found such as feeders, dryers, vibrators, hydro pulpers and finishing tables.

air filter in automobile

The main purpose of providing air filter in pneaumatic system is to prevent the entry of moisture and foreign matter and to render a pure air to the system.

properties of air

1) can be compressed eaisly
2)cheap
3)abundant in nature
4)no fire hazard

pneaumatic system

The fluid system that in as compressed air for power generation, the system is called as pneumatic system. pneumos-means breath 9greak word0. Pneumatics means science of air. But it also be applied to any other gas

Tyre thread preparation

After a to tyre is buffed, it passes to the gourth to the stage in the retrading process and which is trade preparaton. From this stage onwards the tyre casing should never be allowed to the on the floor in order to the buffed surface being contaminated.

tyre buffing

Buffing is the process in which the tyre casing to be re rubberized has its tread area rasped down to remove all the original old rubber so that uniform, roughned surface is provided. The buffer tread of the worned tyre is shaped to that of the counter of the matrix.

PAINTING

Before painting a surface, it must be thoroughly cleaned and it should be free from dust,dirt,rust and oil.

Automobile painting

It is normally defined as a liquid which, when applied to a surface of an object, forms a thin layer and hardens with time to create a film

objectives of  automobile painting
a. protection
b.appearance improvement
c.quality up grading
d. color designation

types of automobile painting
a. brush painting
b.spray painting

a.Brush painting: Brush painting requires more paint and commonly used for wood and other uneven surfaces. Metallic parts and automobile bodies are painted by spray paintimg which gives a very fine finish and at the same time consumes less paint.

b.Spray painting: spray painting is done by spray gun and compressed air. The pressure of air must be regulated by deducting valves and it should also be pressed through moisture separator, so the cleaned dry air is supplied for painting. The spray gun contains the container to hold the painting and also spray adjusting device.

I C ENGINES

AUTOMOBILE INTERNAL COMBUSTION ENGINE  2 TYPES
1) Spark ignition engine
2) compression ignition engine
 internal combustion engine  is used in motorcycles, automobiles, boats, trucks, aircraft, ships, heavy duty machinery....

BRAKE DRUM SKIMMING LATHE

                                                BRAKE DRUM SKIMMING LATHE