Cyclic variation of engine torque

[ttyy3]

! Cyclic variation of engine torque

If the cylinders fire sequentially according to the fire order 1-2-4-3

What is the pattern of the cyclic variation of each cyclinder engine torque and the resultant engine torque?

 

[Mark44]

What are your thoughts on this? Given that you are new to this forum, you might not have read the rules, which require you to show some effort at solving your problem. Show us what you think and we'll go from there.

 

[Mene]

The pattern of the cyclic variation of each cylinder engine torque will depend on a few factors, including the engine design and the engine speed. However, in general, the cyclic variation of engine torque can be described as a repeating pattern of peaks and valleys. This is due to the nature of the four-stroke combustion cycle, where the power stroke (when the fuel-air mixture is ignited and the piston is pushed down) is followed by three other strokes (intake, compression, and exhaust) that do not contribute to engine torque.

In the case of a four-cylinder engine with a firing order of 1-2-4-3, the cyclic variation of engine torque would follow a similar pattern for each cylinder, but with a slight delay between them. This is because each cylinder fires at a different point in the engine cycle. Cylinder 1 would have the highest torque output during the power stroke, followed by cylinder 2, then 4, and finally 3.

The resultant engine torque, calculated by adding together the torque output of each cylinder, would also have a cyclic pattern, but with a smoother curve due to the overlapping firing of the cylinders. This cyclic variation is a natural occurrence in internal combustion engines and can be minimized through proper engine design and tuning.