Honda VTEC System

Honda developed VTEC (Variable Timing and Lift Electronic Control) to improve the volumetric efficiency of a four-stroke internal combustion engine . Ikuo Kajitani, engineer at Honda was the first involved in the development of these four-valve engines. The Honda’s VTE…

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Safety Precautions in Forging Shop

Some safety precautions in forging shop to followed while performing forging operation to avoid injuries and accidents are listed below: Forging shop. Image source: Wikimedia Commons Always avoid the use of damaged hammers. Never try to strike a hardened surface with…

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Safety Precautions while Working on Lathe Machine

The operator must go through and become familiar with these general safety precautions/recommendations to avoid accidents and injuries while working on a lathe machine : The operator should always be sure that all guards are in place before running the lathe machine. …

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Advantages and Disadvantages of using LPG in S.I Engine

The largest use of LPG (Liquefied petroleum gas) at present is as domestic and industrial fuel. However, there is an increasing trend to use LPG as a motor fuel in the automobile sector. Let us see the major advantages and disadvantages of using Liquefied Petroleum Ga…

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Air-cooling System in Reciprocating Engine

In an air-cooling system, the outer surface of the cylinder and the cylindrical head in a reciprocating engine are cooled by air flowing over them. To increase the heat transfer rate from the surface, the metallic fins are cast on the cylinder and cylinder head. These …

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Losses in Steam Turbines

Losses in steam turbines can be mainly classified into two types. They are: Internal losses (which occur within the flow of Steam) and External losses (which occur outside the turbine casting. Internal Losses in Steam Turbines: The internal losses in ste…

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Desirable Properties of Bearing Materials

When the surfaces of the bearing are separated by a fluid film, the bearing materials do not have any effect on its operation, so long as the parts have sufficient strength to withstand the imposed loads and sufficient rigidity to maintain alignment. On account of s…

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