How many car engine stroke

Question

Accepted Answer

A car engine can have either 2-stroke or 4-stroke.

A 2-stroke engine completes a power cycle in two strokes of the piston, while a 4-stroke engine completes it in four strokes.
Most cars have 4-stroke engines.
The four strokes in a 4-stroke engine are intake, compression, combustion, and exhaust.

Accepted Answer

The four-stroke engine. An individual cycle comprises four strokes: 1, intake stroke; 2, compression stroke; 3, power stroke and 4, exhaust stroke.

Accepted Answer

There are two primary types of car engine strokes: the four-stroke cycle and the two-stroke cycle. Each cycle consists of a specific sequence of piston movements within the engine cylinder.

1. Four-Stroke Cycle: The majority of modern car engines operate on the four-stroke cycle, also known as the Otto cycle. It consists of four strokes or movements of the piston within each cylinder:

a. Intake Stroke: The piston moves downward, and the intake valve opens to allow a mixture of air and fuel to enter the combustion chamber.

b. Compression Stroke: The piston moves upward, compressing the air-fuel mixture.

c. Power Stroke: Once the mixture is compressed, the spark plug ignites it, causing an explosion. The resulting expansion of hot gases forces the piston back down, generating power.

d. Exhaust Stroke: The piston moves upward again, expelling the burnt gases through the open exhaust valve.

2. Two-Stroke Cycle: The two-stroke cycle, also known as the two-cycle engine, is less common in modern car engines but is used in some smaller engines such as motorcycles, scooters, and some recreational vehicles. It completes a cycle in two strokes:

a. Compression/Combustion Stroke: The piston moves upward, compressing the air-fuel mixture and, simultaneously, the spark plug ignites it, initiating combustion. As the piston moves downward, it also uncovers the exhaust port, allowing the burnt gases to escape.

b. Scavenging/Exhaust Stroke: The downward movement of the piston uncovers the intake port, allowing a fresh air-fuel mixture to enter the combustion chamber. At the same time, the exhaust gases are expelled through the exhaust port.

It's worth noting that the number of strokes refers to the sequence of movements of the piston within the cylinder and does not represent the total number of engine cylinders. Most car engines have four, six, or eight cylinders, and each cylinder undergoes the same stroke sequence within the engine's overall operations.

How many car engine stroke

Popular interview questions of Line Leader

Top HR questions asked in Honda Cars Line Leader