Internal Combustion Engines Classification

To understand Internal combustion engines completely one has to be well versed with engine classification. Internal combustion engines can be classified on the basis of several grounds. Some of the most popular grounds of IC engines classification are discussed here in detail.

Based on type of fuel used  IC engines classified as

  • Engines using volatile liquid fuels

like gasoline, benzene, kerosene, alcohol etc.

  • Engines using gaseous fuels

like Compressed Natural Gas (CNG), Liquefied Petroleum Gas (LPG), blast furnace gas and Bio gas.

  • Engines using solid fuels

like charcoal powdered coal etc

  • Engines using viscous liquids fuels

like heavy and light diesel oils.

  • Engines using two fuels

types of fuel used in engines

Based on method of charging IC engines classified as

Naturally aspirated engines

naturally aspirated engine is an internal combustion engine in which oxygen intake depends solely on atmospheric pressure and does not rely on forced induction through a turbocharger or a supercharger. Many sports cars specifically use naturally aspirated engines to avoid turbo lag.

Supercharged engines

supercharger is an air compressor that increases the pressure or density of air supplied to an internal combustion engine. This gives each intake cycle of the engine more oxygen, letting it burn more fuel and do more work, thus increasing power.

Engine supercharger

Based on type of ignition IC engines are classified as

Battery Ignition system

In a battery ignition system a battery is used to provide energy for ignition. It is work as storage of energy and charged by dynamo, which is driven by engine. It converts chemical energy to electric energy. Two types of battery used in spark ignition system, lead acid battery and alkaline battery. The first one is used in light duty commercial vehicle and the other one is used in heavy duty commercial vehicle. It is housed in primary side of ignition coil.

Magneto Ignition system

A magneto is  a small electric generator which is rotate by the engine and is capable of produce a very high voltage and does not need battery as a source of external energy. The magneto contains both primary and secondary winding thus it does not require a separate coil to boost up the voltage required to operate the spark plug.

magneto ignition engine

Based on type of cooling IC engines are classified as

Air cooled engines

Air-cooled engines rely on the circulation of air directly over hot parts of the engine to cool them.

Water cooled engines

Water cooling is a method of heat removal from components and industrial equipment. As opposed to air cooling, water is used as the heat conductor. Water cooling is commonly used for cooling automobile internal combustion engines.

Engine cooling system

Based on cylinder arrangement IC engines are classified as

Cylinder row

Cylinder bank

Cylinder arrangement in engines

Enjoyed reading engine classification, also read comparison between four Stroke Engine and two Stroke Engine.

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