2-strokes are generally cheaper as they have fewer moving parts and can be made smaller for the same power output.
Unless we are talking about big diesels - Yes.
Two stroke engines will create a lot of visible smoke pollution and also more noise than four stroke engines. For these reason, many countries have required that all new motorcycles should be four-stroke.
jet engines, turbojet engines, turbo-prop engines, four-stroke piston driven engines... Can you be more specific?
They are - most inboard engines are 4-stroke. But as with land vehicles, you can get a smaller engine with 2-stroke (or more horsepower with a smaller engine) so the small engines like some outboards tend to be 2-stroke.
Motorcycles typically have internal combustion engines, which can be classified into two main types: two-stroke and four-stroke engines. Two-stroke engines are lighter and simpler but generally less fuel-efficient and produce more emissions. Four-stroke engines are more common in modern motorcycles, offering better fuel efficiency, lower emissions, and greater durability. Additionally, some motorcycles use electric motors, particularly in electric models, providing an alternative to traditional combustion engines.
two-stroke engines can produce more power than four-stroke engines that have the same size. they can occupy small spaces and produce the desired power. they are on the other hand produce more pollution than 4-stroke engines. that's why they are limited or suitable for small engine spaced machines
Two-stroke engines generally pollute the air more than four-stroke engines due to their design and operation. In a two-stroke engine, the combustion cycle is completed in just two strokes of the piston, which often leads to incomplete combustion and unburned fuel escaping during the exhaust phase. Additionally, two-stroke engines typically mix oil with fuel for lubrication, resulting in higher emissions of hydrocarbons and particulate matter. In contrast, four-stroke engines have a more efficient combustion process and separate lubrication systems, leading to lower emissions.
Most small engines are two stroke because you can get more power from a smaller engine with two stroke rather than a four stroke engine. It takes less to cool and to operate the engine.
Yes, two stroke (or Two cycle) engines have oil that is mixed into the fuel to lubricate the motor's moving parts. Where as, in a 4 stroke engine the oil is separate from the fuel. When the fuel oil mix is burned in a two cycle engine more pollution is given off.
The 1995 Polaris Explorer 400 is a two-stroke engine. This type of engine is known for its simplicity and lightweight design, which contributes to the vehicle's performance and handling. Two-stroke engines typically provide more power for their size compared to four-stroke engines, making them a popular choice for snowmobiles and ATVs like the Polaris Explorer.
Four stroke engines must have at least 2 valves: one exhaust and one intake. Most modern engines are going to 4 valves per cylinder to allow the intake and exhaust strokes to be more efficient.
very large is the keyword here. for a very large engines that runs large machines, we need high power engines. two-strike cycle engines produce more power than 4-stroke cycle engines. that's why they are used. as they produce more pollution than 4-strokes, they must be limited to small spaced engines machines or large machines that required very high power.