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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.
In February 1900, this engine ran under its own power for the first time. However, with its actual power output of only 6.95 PS (5 kW; 7 hp) and high fuel consumption of 380 g·PS −1 ·h −1 (517 g·kW −1 ·h −1), it did not prove to be successful; [4] Güldner's two-stroke diesel engine project was abandoned in 1901. [5]
[5] [9] A kick-starter was added by 1953. [10] The Servi-Cycle was claimed to have a fuel economy of 100 mpg ‑US (120 mpg ‑imp; 2.4 L/100 km). [11] The Servi-Cycle used a magneto of Simplex's own design, providing 6 volt electricity for the dual ignition and for the headlight, taillight and stoplight.
The Raleigh Bicycle Company of Nottingham, England was a big customer for Reynolds 531 tubing used in their racing cycle range. Reynolds 531 has now been largely replaced in new frames by still-better steels. The latest, for race or sports frames, is Reynolds 953. [5] Reynolds worked closely with Carpenter Speciality Alloys to develop 953. It ...
The engine was a long stroke design with 66.0 mm × 72.6 mm (2.60 in × 2.86 in) bore and stroke and mild tuning, resulting in more torque low down. For the first few years a plunger frame was used, but in 1953 the Model 7 was upgraded with a single downtube swinging arm frame, 19-inch front wheel and 'pear shaped' silencers, still known as a ...
The cycle is comparable to a gas-generator cycle engine with turbines driven by main combustion chamber exhaust rather than a separate gas generator or preburner. [1] The J-2S rocket engine, a cancelled engine developed by NASA, used the combustion tap-off cycle and was first successfully tested in 1969. [2]
Ideal Ericsson cycle. The following is a list of the four processes that occur between the four stages of the ideal Ericsson cycle: Process 1 -> 2: Isothermal compression. The compression space is assumed to be intercooled, so the gas undergoes isothermal compression. The compressed air flows into a storage tank at constant pressure.
Reynolds Group Holdings was a New Zealand–based packaging company with roots in the former Reynolds Metals Company, which was the second-largest aluminum company in the United States, and the third-largest in the world. Reynolds Metals was acquired by Alcoa in June 2000. [1] [2] Reynolds Group Holdings became Pactiv Evergreen through an IPO ...