Cylinder stroke

Cylinder stroke is the distance of piston movement from top dead center to bottom dead center, which is one of the factors that determine engine performance.

Misunderstanding of cylinder stroke

The stroke of the cylinder is not as short as possible, nor as long as possible.

What is a cylinder stroke?

Short cylinder stroke means that the piston moves for a relatively short time, and at the same time, the number of reciprocating movements can be more, which makes it easier for the engine to reach a relatively high speed.

When the cylinder stroke is long, the engine can obtain relatively high torque.

The cylinder stroke also determines the center of gravity of the engine. The cylinder with short stroke has a lower height and can obtain a lower center of gravity.

On the contrary, the cylinder stroke is long and the center of gravity of the engine is relatively high.

Cylinder stroke related reading

You can see an extreme example of piston stroke in real life: F 1 racing engine.

At present, all F 1 racing cars use V8 engines with a displacement of 2.4 liters. The piston stroke is less than 40 mm, and the maximum speed can generally reach 18000 rpm.

In contrast, the 2.4-displacement Accord piston stroke is 99 mm, and the maximum speed is only 6500 rpm.

This can well explain the influence of piston stroke on engine characteristics. Misunderstanding of cylinder stroke What is cylinder stroke? Read cylinder stroke @20 19