Automobile Engineering in ME
In a square type engine

Stroke length and cylinder bore are same
Diameter and length of piston are same
Geometrical shape is square
Two cylinders are placed horizontal and two vertical

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Automobile Engineering in ME
The purpose of a balancer shaft is to

Increase inertia force of the rotating crankshaft
Reduce vibrations caused by the crankshaft rotation
Balance the timing in the movement of the two groups of pistons
Adjusts the timing of the intake and exhaust valve openings

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