Types of Combustion Chambers for I.C. Engines

Types of Combustion Chambers for I.C. Engines Points : types of combustion chambers for i.c. engines, the problems related to combustion chambers, problems in internal combustion engines, ic, engine, auto diesel hemispherical. The pancake combustion chamber also called the “bath tube chamber”, have heads almost parallel with the top of the piston the chamber forms a flat pocket over the piston head. The wedge combustion chamber, called a wedge head is shaped like a triangle or a wedge when viewed. Valves are placed side by side with the spark plug next to the valves.

A squish area is commonly formed inside a sedge type cylinder head when the piston reaches top dead center TDC the piston comes very close to the bottom of the cylinder head. This squeezes the air fuel mixture in the area and causes it to squirt or squish out into the main part of the chamber. Squish can be used to improve air fuel mixing at low engine speeds.

A hemispherical combustion chamber s shaped like a dome. The valves are canted (titled) on each side of the chamber. The spark plug is located near the center. Comparing it with the other types the hemispherical combustion chamber is extremely efficient. There are no hidden pockets for incomplete the surface area is very small, reducing heat loss from the chamber. The centrally located spark plug produces a very short flame path for combustion. The canted valves help increase breathing ability.

The hemispherical head was first used in high horse power engines. It is now used in many OHC passenger cars engines. It allows the engine operate at high rpm and make very fuel-efficient. It also produces complete burning of the fuel to reduce emissions.