What is the difference between a two-stroke and a four-stroke engine?

Question

Accepted Answer

A two-stroke engine completes a power cycle in two strokes of the piston, while a four-stroke engine completes it in four strokes.

Two-stroke engines have a simpler design and are lighter than four-stroke engines.
Two-stroke engines have a higher power-to-weight ratio but lower fuel efficiency compared to four-stroke engines.
Four-stroke engines have separate intake, compression, power, and exhaust strokes, while two-stroke engines combine some of these functions.
Examples of two-stroke engines include chainsaws, motorcycles, and some small boats, while most cars and larger vehicles use four-stroke engines.

Accepted Answer

1-)Four stroke engine is one working stroke for two revolution of crankshafts. Two stroke engine is one working stroke for eacs revolution of crankshafts. 2-) four stroke engine is heavy . But two stroke engine is light. 3-) four stroke engine design is complicated. But two stroke engine design is simple. 4-) there are valves in Four stroke engine. There are parts in two stroke engine. 5-)four stroke engine use heavy fly wheel. two stroke engine use light fly wheel. 6-)four stroke engine is complicated lubricating system. But two stroke engine is simple lubricating system. 7-) four stroke engine require More space. but two stroke engine require less space.

Accepted Answer

In two stroke engine inert port is used for taking air - fuel mixture in cylinder . While in four stroke engine inlet valve is used.three different types of port are used in two stroke . Two difference types of valves are used in four stroke engine.

Accepted Answer

2-stroke and a 4-stroke engine is how quickly this combustion cycle process occurs, based on the number of times the piston moves up and down during each cycle.

Accepted Answer

Four stroke engine is heavier,&two stroke engine is higher rpm,&required 3 mixing oil &fuel.

Accepted Answer

Two stoke is one revolution and four stoke is two revolution

Accepted Answer

A two stroke engine requires four process occur in downword and upward stroke.Another difference is two stroke engine don't need valves because intake and exhaust are part of compression and combustion of the chamber.