0
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.
Beulah Wilkinson
Faheem Abbas
To run very large engines high power is required and this is only done by the 2-stroke engines because 2-stroke engines produced more power than 4-stroke engines. 2-stroke engines produce more pollution than 4-stroke engines because in every rotation of crankshaft exhaust gases comes out from the engine and play an important role to increase the entropy of the universe but they must be limited in small space and suitable where high power is required. That's why very large engines operate on a 2-stroke cycle.
Shajar abbas
Usama Ali
2-stroke engines have a more power-to-weight ratio and produce more power than 4-stroke engines because there is a power stroke in each revolution of the crankshaft. That's why large engines are made 2-stroke.
Add your answer:
Earn +20 pts
Why do most very large engines operate on a two-stroke cycle?
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.
Why is lawn mower or leaf blower so loud with such small engine while heavy SUVs are so quiet?
Small engines are loud because it would require a large muffler to make them quiet. There is simply not enough room to install a large muffler. This is especially true with 2 cycle engines in trimmers or blowers. The design of a 2 cycle engine contributes to the noise. This and pollution is the reason 2 cycle engines are being phased out in favor of 4 cycle engines.
How does a v twin engine work?
Two stroke V-twin engines would seem to provide the best of both worlds; the high RPM and power density of a two stroke, and the large displacement and efficient packaging of a V-Twin.HistoryV-Twin Engines have been used since their debut in the 1911 Morgan Three-wheeler, and two stroke engines have been around since 1881.V-Twin DefinitionV-Twin engines are defined as having two cylinders arranged in a V-formation, and as using a crankshaft with a common arm to which both cylinder's connecting rods are attached.Two Stroke EnginesTwo stroke engines have only two cycles: intake and combustion on the piston up-stroke, and power and exhaust on the down-stroke. Two-stroke engines gennerally produce little low-end torque, but fantastic high-RPM power.V-Twin Two StrokesBecause they lack the valve-train required by 4-stroke engines, V-twin two strokes tend to be very light and powerful. Their narrow profile makes them ideal for motorcycles.DisadvantagesThese engines use a mixture of gasoline and oil for fuel, which makes them ecologically harmful, and their inefficiency give them relatively bad fuel economy.
What is two stoke engine?
two-stroke engine is a combustion engine that completes the thermodynamic cycle in two movements of the piston compared to twice that number for a four-stroke engine. This increased efficiency is accomplished by using the beginning of the compression stroke and the end of the combustion stroke to perform simultaneously the intake and exhaust (or scavenging) functions. In this way two-stroke engines often provide strikingly high specific power. Petrol (spark ignition) versions are particularly useful in lightweight (portable) applications such as chainsaws and the concept is also used in diesel compression ignition engines in large and non-weight sensitive applications such as ships and locomotives. Invention of the two-stroke cycle is attributed to Scottish engineer Dugald Clerk who in 1881 patented his design, his engine having a separate charging cylinder. The crankcase-scavenged engine, employing the area below the piston as a charging pump, is generally credited to Englishman Joseph Day (and Frederick Cock for the piston-controlled inlet port). The two-stroke was popular throughout most of the 20th century in motorcycles, small motorized devices such as chainsaws and outboard motors and some cars. This was due to their simple design (and resulting low cost) and higher power-to-weight ratios. Most designs used total-loss lubrication, with the oil being burnt in the combustion chamber, causing visible and other pollution. This is the major reason for two-stroke engines being replaced with four-stroke engines in most applications. Two-stroke engines are commonly used in high-power, handheld applications such as string trimmers and chainsaws. The light overall weight, and light-weight spinning parts give important operational and even safety advantages. Only a two-stroke running on a "petroil" mixture can power a chainsaw running in any position. To a lesser extent, these engines may still be used for small, portable, or specialized machine applications such as outboard motors, high-performance, small-capacity motorcycles, mopeds, underbones, scooters, tuk-tuks, snowmobiles, karts, ultralights, model airplanes (and other model vehicles) and lawnmowers. The two-stroke cycle is used in many diesel engines, most notably large industrial and marine engines, as well as some trucks and heavy machinery. A number of main-stream automobile manufacturers have used two-stroke engines in the past, including the Swedish Saab and German manufacturers DKW and Auto-Union. The Japanese manufacturer Suzuki did the same in the 1970s.[1] Production of two-stroke cars ended in the 1960s in the West, but Eastern Bloc countries continued until around 1991, with the Trabant and Wartburg in East Germany and Syrena in Poland. Lotus of Norfolk, UK, has a prototype direct-injection two-stroke engine intended for alcohol fuels called the Omnivore[2][3] which it is demonstrating in a version of the Exige
Why must the mitochondria have many cristae with regards to Kreb's cycle or ETC?
The mitochondria provides a large surface area for the electron transport chain and the ATP synthase which are all located in the cristae, which the Kreb's cycle needs to operate.
How would you start big 4-stroke engines where the battery start-up is inadequate?
We use a 4.0:1 or 4.4:1 planetary gear reduction type starter with our big cube inch, high compression race engines to cure probs. Very large diesel engines are usually started by compressed air.
How large are the engines of a drag racer?
real large
What are meta search engines?
Generally speaking, meta search engines perform searches using a conglomeration of other search engines. Metasearch engines enable users to enter search criteria once and access several search engines simultaneously. Metasearch engines operate on the premise that the Web is too large for any one search engine to index it all and that more comprehensive search results can be obtained by combining the results from several search engines. This also may save the user from having to use multiple search engines separately.
How do you mobilize a stroke patient?
A large dose of HMI
Is stroke an endemic or pandemic?
Stroke is Pandemic because it happens to large amounts of people all over the world.
Why large flywheel is used in single cylinder engine?
Single cylinder engines give a "push" to the system only once per cycle. A large flywheel provides mass and thus stability to the rotary motion being created by the engine. (It smooths out the motion of the system.)
How were Zeppelins powered?
Zeppelins were powered by multiple engines, typically internal combustion engines, such as large petrol (gasoline) engines. These engines provided the necessary thrust to propel the Zeppelin through the air.
