Porter Governor is a modification of Watt Governor with central load attached to the sleeve. This load moves up and down the central spindle. The additional force increases the speed of revolution required to enable the balls to rise to any predetermined level. Construction :- Porter governors has two fly balls which are attached to…
Proell Governor is a different type of governor in which the fly balls are connected to the spindle using an extended arm. The fly balls are mounted on this additional arm. Like the porter governor, proell governor also has central weight which increases the speed of rotation. Proell Governor functions much more accurately than other…
Zenith Carburetor is a British carburetor which is used by many popular companies. It is produced by Zenith Carburetor Company and was founde in 1910.In this carburetor there is no starting problem and also this carburetor provides rich mixture during high speed. Following are the list of components in a Zenith Carburetor :-1) Float Chamber2)…
Hartnell Governor is spring loaded centrifugal governor. It contains an additional spring which is used to apply an additional force to the sleeve. This governor has a nut place at the top of the spring . This nut is used to adjust the force of the spring. Construction:- Hartnell Governor has a spindle which is…
Fins are the extended surfaces designed to increase the transfer rate for a fixed surface temperature or lower surface temperature for a fixed heat transfer rate.These are generally used to increase the heat transfer rate to the environment. It can most commonly be seen in the internal combustion engine to transfer heat to the environment…
Cupola Furnace is a melting device which used to melt cast iron, Bronze and other alloying elements are melted. It is mainly used to convert pig iron to cast iron.Cupola Furnace was first built in China in the Warring States Period ( 403 -221 BC).Cupola furnace is cylindrical in shape and the equipment of this…
A pattern is a replica of casting, but it has slightly larger dimensions. This change in pattern in casting due to various reasons is known as pattern allowances in casting. For Example:When the cast solidifies, it shrink at some extent due to the metal shrinkage property at the time of cooling. So a pattern is made…
Annealing is a heat treatment that alters the physical and sometimes chemical properties of a material to increase its ductility and reduce its hardness, making it more workable.In annealing process, a material is heated above its recrystallization temperature,maintaining a suitable temperature and then cooling. In cases of copper, steel, silver and brass, this process is…
Projection is a type of resistance welding. It is named so because different projections are formed on the workpiece for effective welding.In this welding process, the design or shape of the part is used to make discreet individual contact to concentrate the current during the welding process.In most cases, multiple small projections are formed over…
Vena Contracta is the point in a fluid stream where kinetic energy is maximum and pressure energy is minimum.At Vena Contracta fluid stream where velocity is maximum and the diameter of stream is minimum.in orificemeter maximum contraction or Vena Contracta takes place at a section slightly down the stream of the flow, at that section…