what are the ways to prevent air/fuel mixture jumping from one cylinder to the other
Usually we do not expect the air/fuel mixture exchange between cylinders. If you have identified one such problem in your engine, may be there is a damage in the gasket. Open the cylinder head and inspect for any damage and replace the gasket valve seats.
Let know the indication you got for this problem.
Dr.S.Ravindran
In multi-cylinder engines, fuel-air mixtures could be delivered from one cylinder to others from inlet manifold. It would also be from cylinder gasket, but I think that if the gas leaks from one cylinder to others through gasket, it would likely be difficult for the engine to start. To my best understanding, the valve's timing need to be checked and reset as manufacturer's suggests. This can help to reduce problems of fuel-air mixture from one cylinder flows back into the manifold (through the inlet valves) then goes into others.
How do you know that it is transmitted to the other cylinder. The air fuel mixture may be getting transmitted through the crank case due to faulty piston rings.
Fascinated by your problem is this a research problem you are working on.
I worked on automotive systems on the air flow, but if you provide more details we may be able to assist.
https://www.researchgate.net/publication/260845781_Inlet_Air_Flow_Meter_for_an_Internal_Combustion_Engine
Thesis Inlet Air Flow Meter for an Internal Combustion Engine
What type of fuel system you are dealing with? Perhaps this will make answering easier and relevant.
For most of the time, this is not the relevant operation of Intake System. A/F mixture never jumps from one cylinder to another. This is surely a problem that may be possible in Intake system.
This also depends on which engine you are talking about CI or SI ?
For any of the engine if fuel injection system is Direct Injection, this problem is impossible.
This may only arise if the Intake system having manifold injection.
proper preventive maintenance of the cooling system...changing the fluid at least every other year or by mileage. proper operation of the thermostat and clean flow radiator. all this is to not cause an overhear and warp the head and blow the head gasket..
in most cases, this troubleshooting from damage of cylinder gasket.
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