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The oil is contained in a reservoir that connects to a small oil pump in the engine, which needs to be periodically refilled. Oil injection pump on a Yamaha DX100 - just behind the carburettor (visible on the left) It is the primary component of two-stroke automatic lubrication system.
Animation of a two-stroke engine. A two-stroke (or two-stroke cycle) engine is a type of internal combustion engine that completes a power cycle with two strokes of the piston (one up and one down movement) in one revolution of the crankshaft in contrast to a four-stroke engine which requires four strokes of the piston in two crankshaft revolutions to complete a power cycle.
The first American patent was taken out in 1894, and by 1906, a dozen American companies had taken licences. One of these, Palmers of Connecticut, managed by entrepreneur Julius Briner, had produced over 60,000 two-stroke engines before 1912. [6] Many of these early engines found their way into motorcycles, or onto the back of boats.
One of the unique features of the 149 engine is its bore and stroke 5.75-by-5.75-inch (146 mm × 146 mm); hence, it is known as a square bore design. It has a relatively high power-to-weight ratio . The 20V149 TIB DDEC III SCCC in stand-by generator spec has an output of 2,936 hp (2,189 kW) from a capacity of 2,980 cu in (48.8 L).
The 532 features liquid-cooled cylinder heads and cylinders with a rotary valve inlet. Cooling is via one or two externally mounted radiators. Lubrication is by use of pre-mixed fuel and oil at 50:1. The 532 has a single Bosch flywheel magneto ignition system. It can be equipped with either one or two piston-type carburetors. It uses a manifold ...
The 2si 460 is a family of in-line twin-cylinder, two-stroke, single ignition, aircraft engines that were designed for ultralight aircraft. [1]The basic engine was originally designed and produced by ILO-Motorenwerke of Germany and was later acquired by the AMW Cuyuna Engine Company of Beaufort, South Carolina and marketed under the Cuyuna brand name.
These engines were designed to have a total-loss lubrication system, with the motor oil held in a separate tank from the fuel in the vehicle, and not pre-mixed with it as with two-cycle engines, but mixed within the engine instead while running. Castor oil was often used because it lubricates well at the high temperatures found in air-cooled ...
Engine construction was not allowed until 1947 but engines of the British Army on the Rhine were repaired and orders came from occupying forces. Many motorcycle manufacturers opted for ILO. In 1954, 1,500 people produced 184,000 units - making ILO the largest manufacturer of two-stroke engines in Germany. In 1957 Moped used ILO piano engines.