2si 215

Last updated
2si 215
Type Two-stroke aircraft engine
National origin United States
Manufacturer 2si

The 2si 215 is a family of single-cylinder, fan-cooled, two-stroke, single ignition, aircraft engines that were designed for ultralight aircraft. [1]

Aircraft engine engine designed for use in powered aircraft

An aircraft engine is a component of the propulsion system for an aircraft that generates mechanical power. Aircraft engines are almost always either lightweight piston engines or gas turbines, except for small multicopter UAVs which are almost always electric aircraft.

Contents

The basic engine was originally designed and produced by JLO-Motorenwerke of Germany and was later acquired by the AMW Cuyuna Engine Company of Beaufort, South Carolina and marketed under the Cuyuna brand name. Later the engine was marketed by Cuyuna under the Two Stroke International (2si) brand. Cuyuna no longer markets engines for aircraft use although the 215 is still in production as an industrial and multi-fuel engine. [2] [3] [4] [5]

Germany Federal parliamentary republic in central-western Europe

Germany, officially the Federal Republic of Germany, is a country in Central and Western Europe, lying between the Baltic and North Seas to the north, and the Alps to the south. It borders Denmark to the north, Poland and the Czech Republic to the east, Austria and Switzerland to the south, France to the southwest, and Luxembourg, Belgium and the Netherlands to the west.

Beaufort, South Carolina City in South Carolina, United States

Beaufort is a city in and the county seat of Beaufort County, South Carolina, United States. Chartered in 1711, it is the second-oldest city in South Carolina, behind Charleston. The city's population was 12,361 in the 2010 census. It is a primary city within the Hilton Head Island-Bluffton-Beaufort, SC Metropolitan Statistical Area.

Development

The 215 is a conventional single-cylinder engine that weighs 39 lb (18 kg) in its 215R aircraft version. The engine features single breaker and points ignition, with single capacitor discharge ignition used on the current models. It also incorporates piston porting, tuned exhaust system, single carburetor, fan cooling, fuel pump, a cast iron cylinder liner, ball, needle and roller bearings throughout. The 215R aircraft version was offered with an optional belt reduction system and the modern industrial versions have an optional gearbox with ratios of 2.04, 2.65 and 3.06. Starting is a recoil starter with a custom electric starter available as an option. [1] [4] [5]

Capacitor discharge ignition

Capacitor discharge ignition (CDI) or thyristor ignition is a type of automotive electronic ignition system which is widely used in outboard motors, motorcycles, lawn mowers, chainsaws, small engines, turbine-powered aircraft, and some cars. It was originally developed to overcome the long charging times associated with high inductance coils used in inductive discharge ignition (IDI) systems, making the ignition system more suitable for high engine speeds. The capacitive-discharge ignition uses capacitor discharge current to the coil to fire the spark plugs.

Carburetor device that mixes air and fuel for internal combustion engines

A carburetor or carburettor is a device that mixes air and fuel for internal combustion engines in the proper air–fuel ratio for combustion. It is sometimes colloquially shortened to carb in the UK and North America or carby in Australia. To carburate or carburet means to mix the air and fuel or to equip with a carburetor for that purpose.

Variants

215D
Gasoline aircraft engine with direct drive. Single carburetor, 20 hp (15 kW) at 6000 rpm, weight 42 lb (19 kg), out of production. [1]
215F
Gasoline industrial engine. Single carburetor, 20 hp (15 kW) at 6000 rpm, still in production. [4]
215MF
Multi-fuel industrial engine. Single carburetor, 7 to 12 hp (5 to 9 kW) at 6500 rpm, weight 53 lb (24 kg), still in production. [5]
215R
Gasoline aircraft engine with belt reduction drive. single carburetor, 20 hp (15 kW) at 6000 rpm, weight 39 lb (18 kg), out of production. [1]

Applications

The Advanced Aviation Husky, Hi-Nuski and Coyote are a family of American ultralight aircraft that was designed and produced by Advanced Aviation. The aircraft was supplied as a kit for amateur construction and introduced in 1978.

Carlson Sparrow ultralight aircraft series by Carlson Aircraft in the United States

The Carlson Sparrow is a family of American, high wing, strut-braced, single engine, ultralight aircraft that was designed by Ernst W. Carlson and produced by Carlson Aircraft of East Palestine, Ohio and later Skyline Technologies of Salem, Ohio for amateur construction.

Eipper Quicksilver

Quicksilver is a line of single and two-place high wing, single-engine, ultralight aircraft that evolved from weight-shift hang gliders including Bob Lovejoy's High Tailer.

Specifications (215D aircraft engine)

Data from Cuyuna [1] & 2si [4]

General characteristics

Components

Valvetrain mechanical system that controls operation of the valves in an internal combustion engine

A valvetrain or valve train is a mechanical system that controls operation of the valves in an internal combustion engine, whereby a sequence of components transmits motion throughout the assembly.

Propeller speed reduction unit

A propeller speed reduction unit is a gearbox or a belt and pulley device used to reduce the output revolutions per minute (rpm) from the higher input rpm of the powerplant. This allows the use of small displacement internal combustion automotive engines to turn aircraft propellers within an efficient speed range.

Performance

Compression ratio the ratio of the volume of a combustion chamber from its largest capacity to its smallest capacity

The static compression ratio,, of an internal combustion engine or external combustion engine is a value that represents the ratio of the volume of its combustion chamber from its largest capacity to its smallest capacity. It is a fundamental specification for many common combustion engines.

See also

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References

  1. 1 2 3 4 5 Cuyuna Development Company: Cuyuna Engines, Cuyuna Development Company, undated
  2. ↑ Cliche, Andre: Ultralight Aircraft Shopper's Guide 8th Edition, page G-2 Cybair Limited Publishing, 2001. ISBN   0-9680628-1-4
  3. ↑ Two Stroke International (n.d.). "2si Company Profile". Archived from the original on 2010-01-15. Retrieved 2010-02-16.
  4. 1 2 3 4 2si (n.d.). "Engine Model 215F Industrial Configuration". Archived from the original on 2013-01-16. Retrieved 2010-02-22.
  5. 1 2 3 2si (n.d.). "Diesel / Multi-fuel Engine Model 215 MF Industrial Configurations". Archived from the original on 2010-01-17. Retrieved 2010-02-22.
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