| Home > Front Wheel Drive |
|
|
|
The combustion chamber is where the air-fuel mixture is burned. The
location of the combustion chamber is the area between the top of the
piston at what is known as TDC (top dead center) and the cylinder
head. TDC is the piston's position when it has reached the top of the
cylinder, and the center line of the connecting rod is parallel to
the cylinder walls.
The two most commonly used types of combustion chamber are the
hemispherical and the wedge shape combustion chambers.
The hemispherical type is so named because it resembles a hemisphere.
It is compact and allows high compression with a minimum of
detonation. The valves are placed on two planes, enabling the use of
larger valves. This improves "breathing" in the combustion chamber.
This type of chamber loses a little less heat than other types.
Because the hemispherical combustion chamber is so efficient, it is
often used, even though it costs more to produce.
The wedge type combustion chamber resembles a wedge in shape. It is
part of the cylinder head. It is also very efficient, and more easily
and cheaply produced than the hemispherical type.
|
|
|
