Manifolds

Introduction:
The passages in the cylinder head leading to or from the valves are called ports. The system of pipes, which connect the inrake ports of various engines, is called the inlet manifold.If the exhaust ports are similarly connected to a common exhaust system, then this system of piping is called exhaust manifold.

Mixture flow in manifold:

Fig: mixture flow in manifold

• Fig shows the flow of air-fuel mixture in a manifold.
• The intake manifold carries the uniform mixture before the entrance in a cylinder A.
• Cylinder B receives a higher percentage of the fuel, which includes the share of cylinder A.
• The heavy fuel particles which were intended for cylinder A are collected at the point X and these fuel particles are passed to cylinder B.

Dual manifold:                                                      

Fig: Dual manifold

 

Exhaust manifold:

Fig: Exhaust manifold