In a manual cycle rickshaw, out of two rear wheels, only one is attached to the rear axle while the other one is kept free (it is free to rotate...

I completely agree that the exhaust valve is made smaller than the intake valve but after the exhaust stroke, there is always some charge that remains in the clearance volume...

I completely agree that the exhaust valve is made smaller than the intake valve but after the exhaust stroke, there is always some charge that remains in the clearance volume...

I think, you are talking about Gasoline Direct Injection systems and MPFI systems. In engines with these technologies, carburettor is not needed at all. These give better performance than carburetted...

Can an exhaust suction fan be used to suck the exhaust remaining in the clearance volume of an IC Engine?