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Wankel Engine
The Wankel engine (, ) is a type of internal combustion engine using an eccentric (mechanism), eccentric Pistonless rotary engine, rotary design to convert pressure into rotating motion. The concept was proven by German engineer Felix Wankel, followed by a commercially feasible engine designed by German engineer Hanns-Dieter Paschke. The Wankel engine's rotor is similar in shape to a Reuleaux triangle, with the sides having less curvature. The rotor spins inside a figure-eight-like epitrochoidal housing around a fixed gear. The midpoint of the rotor moves in a circle around the output shaft, rotating the shaft via a Cam (mechanism), cam. In its basic gasoline-fuelled form, the Wankel engine has lower thermal efficiency and higher exhaust emissions relative to the Four-stroke engine, four-stroke reciprocating engine. This thermal inefficiency has restricted the Wankel engine to limited use since its introduction in the 1960s. However, many disadvantages have mainly been overcome ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wankel Cycle Anim En
Wankel may refer to: * Wankel engine, a type of internal combustion engine using an eccentric rotary design instead of reciprocating pistons * Wankel AG, a German company that produces Wankel engines for ultralight aircraft and racing cars People * Charlotte Wankel (1888–1969), Norwegian painter * Felix Wankel (1902–1988), German engineer; inventor of the Wankel engine * Georg Reinholdt Wankel (1843–1907), Norwegian politician * Heinrich Wankel (1821–1897), Czech palaeontologist See also * Wenkel, a surname {{surname, Wankel German-language surnames ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Motorcycle
A motorcycle (motorbike, bike; uni (if one-wheeled); trike (if three-wheeled); quad (if four-wheeled)) is a lightweight private 1-to-2 passenger personal motor vehicle Steering, steered by a Motorcycle handlebar, handlebar from a saddle-style seat. Motorcycle designs vary greatly to suit a range of different purposes: Long-distance motorcycle riding, long-distance travel, Motorcycle commuting, commuting, cruising (driving), cruising, Motorcycle sport, sport (including Motorcycle racing, racing), and Off-roading, off-road riding. Motorcycling is riding a motorcycle and being involved in other related social activities such as joining a motorcycle club and attending motorcycle rally, motorcycle rallies. The 1885 Daimler Reitwagen made by Gottlieb Daimler and Wilhelm Maybach in Germany was the first internal combustion, petroleum-fueled motorcycle. In 1894, Hildebrand & Wolfmüller became the first series production motorcycle. Globally, motorcycles are comparable numerically t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mean Effective Pressure
The mean effective pressure (MEP) is a quantity relating to the operation of a reciprocating engine and is a measure of an engine's capacity to do work that is independent of engine displacement. Despite having the dimension of pressure, MEP cannot be measured. When quoted as an ''indicated mean effective pressure'' (''IMEP''), it may be thought of as the average pressure acting on a piston during the different portions of its cycle. When friction losses are subtracted from the IMEP, the result is the brake mean effective pressure (BMEP). Derivation Let: :P = power output in watt; :p_\text = mean effective pressure in megapascal; :V_\text = displacement volume in cubic centimetre; :i = number of cycles per revolution (for a 4-stroke engine, i =0.5, for a 2-stroke engine, i =1);Wankel engines are four-stroke engines, so i =0.5; the displacement V_\text is derived from the chamber volume V_\text by multiplying it with the number of rotary pistons i and 2: V_\text = 2 V_\text i (see ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wolf-Dieter Bensinger
Wolf-Dieter Bensinger (26 February 1907 – 17 June 1974) was a German engineer and university professor who contributed significantly to the development of the Wankel rotary engine. Life and career Bensinger was born in Donaueschingen in 1907. In 1931, Bensinger became head of development at Deutsche Versuchsanstalt für Luftfahrt (DVL) in Berlin. At DVL, he developed a sleeve valve system for the Daimler-Benz DB 600. On 20 October 1934, Bensinger married Ilse Margarete Anna, who originated from Stargard, Pommern. Their son was born in 1936. In the 1930s he met Felix Wankel, who became a long-term friend, and with whom Bensinger had a strong bond of trust. From 1943 or 1944 Besinger worked as an engineer with Daimler-Benz AG in Stuttgart where he became head of New Engine Development. From 1945, Bensinger became head of Passenger Car Engine Development. He designed engines such as the six-cylinder Mercedes-Benz M 180 Otto engine (later used in the Mercedes-Benz W 187 s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deutsches Museum Bonn
The Deutsches Museum Bonn is a museum with exhibits and experiments of famous scientists, engineers and inventors. Its central themes are research and technology in Germany after 1945. It is part of the Deutsches Museum in Munich. It was founded in 1995 at the instigation of the Association of Sponsors for the Promotion of German Science (''Stifterverband für die Deutsche Wissenschaft'') in the Science Centre (''Wissenschaftszentrum'') in Bonn Bonn () is a federal city in the German state of North Rhine-Westphalia, located on the banks of the Rhine. With a population exceeding 300,000, it lies about south-southeast of Cologne, in the southernmost part of the Rhine-Ruhr region. This .... Museum director has been Andrea Niehaus since 2001. References External links * Museums in Bonn Technology museums in Germany Science museums in Germany Museums established in 1995 {{NorthRhineWestphalia-struct-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mazda
is a Japanese Multinational corporation, multinational automotive manufacturer headquartered in Fuchū, Hiroshima (town), Fuchū, Hiroshima Prefecture, Hiroshima, Japan. The company was founded on January 30, 1920, as Toyo Cork Kogyo Co., Ltd., a cork-making factory, by Jujiro Matsuda. The company then acquired Abemaki Tree Cork Company. It changed its name to Toyo Kogyo Co., Ltd. in 1927 and started producing vehicles in 1931. Mazda is known for its innovative technologies, such as the Wankel engine, the SkyActiv platform, and the Kodo Design language. It also has a long history of motorsport involvement, winning the 24 Hours of Le Mans in 1991 with the rotary-powered Mazda 787B. In the past and present, Mazda has been engaged in alliances with other automakers. From 1974 until the late 2000s, Ford Motor Company, Ford was a major shareholder of Mazda. Other partnerships include Toyota, Nissan, Isuzu, Suzuki and Kia. In 2023, it produced 1.1 million vehicles globally. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Single-cylinder Engine
A single-cylinder engine, sometimes called a thumper, is a piston engine with one cylinder. This engine is often used for motorcycles, motor scooters, motorized bicycles, go-karts, all-terrain vehicles, radio-controlled vehicles, power tools and garden machinery (such as chainsaws, lawn mowers, cultivators, and string trimmers). Single-cylinder engines are made both as 4-strokes and 2-strokes. Characteristics Compared with multi-cylinder engines, single-cylinder engines are usually simpler and compact. Due to the greater potential for airflow around all sides of the cylinder, air cooling is often more effective for single cylinder engines than multi-cylinder engines. This reduces the weight and complexity of air-cooled single-cylinder engines, compared with liquid-cooled engines. Drawbacks of single-cylinder engines include a more pulsating power delivery through each cycle and higher levels of vibration. The uneven power delivery means that often a single-cylinder en ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Two-stroke Engine
A two-stroke (or two-stroke cycle) engine is a type of internal combustion engine that completes a Thermodynamic power cycle, power cycle with two strokes of the piston, one up and one down, 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. During the stroke from bottom dead center to top dead center, the end of the exhaust/intake (or Scavenging (automotive), scavenging) is completed along with the compression of the mixture. The second stroke encompasses the combustion of the mixture, the expansion of the burnt mixture and, near bottom dead center, the beginning of the scavenging flows. Two-stroke engines often have a higher power-to-weight ratio than a four-stroke engine, since their power stroke occurs twice as often. Two-stroke engines can also have fewer moving parts, and thus be cheaper to manufacture and weigh less. In countries and regions with stringe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Supercharger
In an internal combustion engine, a supercharger compresses the intake gas, forcing more air into the engine in order to produce more power for a given displacement (engine), displacement. It is a form of forced induction that is mechanically powered (usually by a belt from the engine's crankshaft), as opposed to a turbocharger, which is powered by the kinetic energy of the exhaust gases. However, up until the mid-20th century, a turbocharger was called a "turbosupercharger" and was considered a type of supercharger. The first supercharged engine was built in 1878, with usage in aircraft engines beginning in the 1910s and usage in car engines beginning in the 1920s. In piston engines used by aircraft, supercharging was often used to compensate for the lower air density at high altitudes. Supercharging is less commonly used in the 21st century, as manufacturers have shifted to turbochargers to reduce fuel consumption and increase power outputs, especially with reduced engine dis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hula Hoop
A hula hoop is a toy hoop (rhythmic gymnastics), hoop that is twirled around the waist, limbs or neck. It can also be wheeled along the ground like a wheel with careful execution and practice. They have been used by children and adults since at least 500 BC. The modern hula hoop was inspired by Australian bamboo hoops. Common lore posits the creators of the plastic hoop witnessed Australian children playing with bamboo hoops while driving past in an automobile. The new plastic version was popularized in 1958 by the Wham-O toy company and became a fad. Hula hoops for children generally measure approximately in diameter, while those for adults measure around . Traditional materials for hula hoops include willow, rattan (a flexible and strong vine), grapevines and stiff grasses. Commercial hoops are usually made of plastic tubing. Origins Native American Hoop Dance is a form of storytelling dance incorporating hoops as props. These props are used to create both static and dyna ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NSU Spider
The NSU Spider is an automobile which was produced by NSU Motorenwerke AG from 1963 to 1967. The Spider was the first Western production car in the world to be powered by a Wankel rotary engine. The water-cooled single rotor engine and standard front disc brakes differentiated the car from other cars of similar type of the period. The body was designed by Bertone. Body First appearing in 1963, the Spider featured a two-door cabriolet body based on that of the NSU Sport Prinz coupé introduced in 1959. In addition to the folding roof, the Spider was distinguishable from the hard top car by a grill at the front. As with all NSU cars at the time, the engine was rear-mounted: in order to improve weight distribution, space was found for the Spider’s radiator and for its fuel tank ahead of the driver. The front luggage locker was, in consequence, small. There was a second luggage area in the rear of the car above the engine. Rotary engine The NSU Spider is the first serie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NSU Motorenwerke
NSU Motorenwerke AG, or NSU, was a German manufacturer of automobiles, motorcycles and pedal cycles, founded in 1873. Acquired by Volkswagen Group in 1969, VW merged NSU with Auto Union, creating Audi NSU Auto Union AG, ultimately Audi. The NSU is an abbreviation of the name Neckarsulm. History Origin NSU originated as the "Mechanische Werkstätte zur Herstellung von Strickmaschinen", a knitting machine manufacturer established in 1873 by Christian Schmidt, a technically astute entrepreneur, in the town of Riedlingen on the Danube. The business relocated in 1880 to Neckarsulm. There followed a period of rapid growth and in 1886, the company began to produce bicycles, the first of them a 'high wheeler' or 'Penny-farthing' branded as the "Germania". By 1892, bicycle manufacturing had completely replaced knitting machine production. At about this time, the name NSU appeared as a brand name. The first NSU motorcycle appeared in 1901, followed by the first NSU car in 1905. Durin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
