As of 2007, the 14-cylinder Wärtsilä-Sulzer 14RTFLEX96-C turbocharged two-stroke diesel engine built by Wärtsilä licensee Doosan in Korea is the most powerful diesel engine put into service, with a cylinder bore of delivering.

They use forced induction ( similar to super-charging, or turbocharging ) to scavenge the cylinders ; an example of this type of motor is the Wärtsilä-Sulzer turbocharged two-stroke diesel as used in large container ships.

double-acting two-stroke diesel engine.

The largest reciprocating engine in production at present, but not the largest ever built, is the Wärtsilä-Sulzer RTA96-C turbocharged two-stroke diesel engine of 2006 built by Japan ’ s Diesel United, Ltd.

Steam engines were the first mechanical engines used in marine propulsion, but have mostly been replaced by two-stroke or four-stroke diesel engines, outboard motors, and gas turbine engines on faster ships.

The engine may be two-stroke or four stroke and may be run on diesel fuel, gas fuel or dual fuel.

The first B & W two-stroke diesel engine set off to sea in 1930 and the world's largest diesel engine at the time was delivered in 1933 to H. C. Ørsted Power Station.

The first turbocharged two-stroke diesel engine was commissioned in 1952 with larger and more innovative designs to follow.

Though all Copenhagen operations were consolidated at Tegleholmen in 1994 and the last volume production unit at the B & W Shipyard was delivered in 1996. in 2000 MAN B & W Diesel two-stroke diesel engines had over 70 % market share, with a substantial number of MC-line engines on order.

The electronically controlled line of ME diesel two-stroke engines was added in 2002 with a maximum cylinder bore of 108 cm.

The two-stroke cycle is also used in many diesel engines, most notably large industrial and marine engines, as well as some trucks and heavy machinery, but two-stroke diesels don't burn their lubricating oil and don't have the emission problems of two stroke petrol / gasoline engines.

The valved arrangement is common in diesel locomotives ( Electro-Motive Diesel ) and large marine two-stroke engines ( Wärtsilä ).

Marine two-stroke diesel engines directly coupled to the propeller are able to start and run in either direction as required.

The large two-stroke marine diesel engines are usually of this pattern.

It is powered by the 1, 000-hp 6TD-1 6-cylinder multi-fuel two-stroke turbo-piston diesel engine, ensuring high fuel efficiency and a long cruising range.

EMD's 16-cylinder two-stroke diesel, with 710 CID per cylinder ( hence known as the 16-710 ), can produce over.

The design has been used for two-stroke, four-stroke, and diesel engines, air-cooled and water-cooled, and aspirated by both carburettors and turbochargers.

The MAN B & W 5S50MC five-cylinder two-stroke diesel engine.

The Field-Marshall and its tracked stable-mate ( Marshall-engined Fowler VF and VFA ), were distinctive because of the use of a single-cylinder two-stroke diesel engine ( of about 6-litre capacity ) coupled to a very large flywheel, whereas tractors such as the Fordson N used a multi-cylinder engine.

It is frequently used as a supercharger in engines, where it is driven directly from the engine's crankshaft via a belt or, in a two-stroke diesel engine, by spur gears.

The Roots design was commonly used on two-stroke diesel engines ( popularized by the Detroit Diesel division of General Motors ), which require some form of forced induction, as there is no separate intake stroke.

The Rootes Co. two-stroke diesel engine, used in Commer and Karrier vehicles, had a Roots-type blower but the two names are not connected.

* MQM-61A Cardinal Drone aircraft with single horizontally opposed two-stroke piston engine and propeller

A two-stroke engine does not have a discrete exhaust and intake stroke and thus is incapable of self-aspiration.

Although unsuccessful, he made a two-stroke toy engine in 1919, called Des Knaben Wunsch —" the boy's desire ".

Their first passenger car was the F89 using the body from the prototype F9 made before the war and the two-cylinder two-stroke engine from the last F8.

These models where produced with a 1, 000 cc two-stroke engine, with a choice between or S versions until 1963.

In 1960 DKW developed a V6 engine by combining two three cylinder two-stroke engines giving a single V6 engine with a capacity of 1, 000 cc.

Animation of two-stroke engine in operation, with a tuned pipe exhaust

The term internal combustion engine usually refers to an engine in which combustion is intermittent, such as the more familiar four-stroke and two-stroke piston engines, along with variants, such as the six-stroke piston engine and the Wankel rotary engine.

In terms of power per cm³, a two-stroke engine produces comparable power to an equivalent four-stroke engine.

It may be possible for a two-stroke to produce more power than an equivalent four-stroke, over a narrow range of engine speeds, at the expense of less power at other speeds.

Fuel injection is essential for a modern two-stroke engine for it to meet stringent emission standards.

The low-pressure direct gasoline injection developed by R Sarich was tested by Ford in an automobile size 2-stroke engine, and in 2012, Orbital won a contract by the Australia government for a two-stroke, direct injection engine for airborne drones.

In a two-stroke SI engine a cycle is completed in two strokes of a piston or one complete revolution ( 360 °) of a crankshaft.

The major components of a two-stroke spark ignition engine are the:

In conclusion, based on the above advantages and disadvantages, two-stroke engines are supposed to operate in vehicles where the weight of the engine must be small, and it is not used continuously for long periods.

* Crude oil engine-a two-stroke engine

A typical minimoto is approximately one-fourth the size of a regular motorcycle, and is powered by a two-stroke internal combustion engine of between 40 – 50 cc producing somewhere between 2. 4 and 17 hp ( 1. 8 and 11 kW ).

Small displacement, crankcase-scavenged two-stroke engines have been less fuel-efficient than other types of engines when the fuel is mixed with the air prior to scavenging allowing some of it to escape out of the exhaust port.

With its mediocre performance, outdated and inefficient two-stroke engine ( which returned poor fuel economy for the car's size and produced heavy exhaust ), and production shortages, the Trabant is often cited as an example of the disadvantages of centralized planning ; on the other hand, it is regarded with derisive affection as a symbol of the failed former East Germany and of the fall of communism ( in former West Germany, as many East Germans streamed into West Berlin and West Germany in their Trabants after the opening of the Berlin Wall in 1989 ).

On two-stroke engines, the operation of the power valve is the reverse of normal — it is normally " on " and at a set rpm it is turned " off ".

Moto2 is the new 600 cc four-stroke class to replace 250 cc two-stroke class.

The engine ( whether four-stroke or two-stroke ) has a conventional valve or port layout but there is an additional " compression control valve " ( CCV ) in the cylinder head.

A two-stroke, two-cycle, or 2-cycle engine is a type of internal combustion engine which completes a power cycle in only one crankshaft revolution and with two strokes, or up and down movements, of the piston in comparison to a " four-stroke engine ", which uses four strokes to do so.

The first commercial two-stroke engine involving in-cylinder compression is attributed to Scottish engineer Dugald Clerk, who in 1881 patented his design, his engine having a separate charging cylinder.

The heat transfer from the engine to the cooling system is less in a two-stroke engine than in a traditional four-stroke, a fact that adds to the overall engine efficiency, however, traditional 2-strokes have a poor exhaust emissions feature.

This is a major reason why two-stroke engines were replaced by four-stroke engines in many applications.

Lotus of Norfolk, UK, has a prototype direct-injection two-stroke engine intended for alcohol fuels called the Omnivore which it is demonstrating in a version of the Exige.