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Ducati 851
The Ducati 851 is a 90° V-twin fully faired sport bike with liquid cooling and four valve heads. It was produced by Ducati between 1987 and 1992, when it was succeeded by the Ducati 888. Development The Ducati 851 was the successor to the air-cooled two-valve Ducati 750 F1. Development had lagged with the continued use of two-valve engines, but new investment funded the technological advance that Ducati desperately needed. After buying Ducati, Cagiva invested in the development of another V-twin, but with liquid cooling, and four-valve desmodromic heads. Massimo Bordi had designed a 4V Desmo in 1973 for his thesis at the University of Bologna, and with Cagiva in 1985, saw his updated ideas come into production as the Desmoquattro. Based on the Pantah motor, but with liquid cooling, fuel injection, and desmodromic four valve heads (with an included valve angle of 40°), the 851 made Ducati once again competitive in motorcycle racing. The original Desmo Quattro was an experiment ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1992 Ducati 851
Year 199 (Roman numerals, CXCIX) was a common year starting on Monday (link will display the full calendar) of the Julian calendar. At the time, it was sometimes known as year 952 ''Ab urbe condita''. The denomination 199 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * Mesopotamia is partitioned into two Roman provinces divided by the Euphrates, Mesopotamia and Osroene. * Emperor Septimius Severus lays siege to the city-state Hatra in Central-Mesopotamia, but fails to capture the city despite breaching the walls. * Two new Roman legion, legions, Legio I Parthica, I Parthica and Legio III Parthica, III Parthica, are formed as a permanent garrison. China * Battle of Yijing: Chinese warlord Yuan Shao defeats Gongsun Zan. Korea * Geodeung of Geumgwan Gaya, Geodeung succeeds Suro of Geumgwan Gaya, as king of the Korean kingdom of Gaya co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Desmodromic Valve
:''In general mechanical terms, the word ''desmodromic'' is used to refer to mechanisms that have different controls for their actuation in different directions.'' A desmodromic valve is a reciprocating engine poppet valve that is positively closed by a cam and leverage system, rather than by a more conventional spring. The valves in a typical four-stroke engine allow the air/fuel mixture into the cylinder at the beginning of the cycle and exhaust spent gases at the end of the cycle. In a conventional four-stroke engine, valves are opened by a cam and closed by return spring. An engine using desmodromic valves has two cams and two actuators, each for positive opening and closing without a return spring. Etymology The word comes from the Greek words ''desmos'' (, translated as "bond" or "knot") and ''dromos'' (, "track" or "way"). This denotes the major characteristic of the valves being continuously "bound" to the camshaft. Idea The common valve spring system is satisfactory ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ducati Motorcycles
Ducati Motor Holding S.p.A. () is the motorcycle-manufacturing division of Italian company Ducati (company), Ducati, headquartered in Bologna, Italy. The company is directly owned by Italian automotive manufacturer Lamborghini, whose German parent company is Audi, itself owned by the Volkswagen Group. History In 1926 Antonio Cavalieri Ducati and his three sons, Adriano, Marcello, and Bruno, founded ''Società Scientifica Radiobrevetti Ducati'' (SSR Ducati) in Bologna to produce vacuum tubes, Capacitor, condensers and other radio components. In 1935 they had become successful enough to enable construction of a new factory in the Borgo Panigale area of the city. Production was maintained during World War II, despite the Ducati factory being a repeated target of Allied bombing. It was finally destroyed by around 40 Consolidated B-24 Liberators on 12 October 1944 as part of the United States Army Air Forces's Operation Pancake, which involved some 700 aircraft flying from airfields ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Raymond Roche
Raymond Roche (born 21 February 1957 in Ollioules) is a French former professional Grand Prix motorcycle road racer. Motorcycle racing career In 1981, he teamed up with Jean Lafond to win the FIM Endurance World Championship. His best year in Grand Prix racing was in 1984 when he finished third in the 500cc world championship behind Eddie Lawson and Randy Mamola. After retiring from Grand Prix racing, he competed in the Superbike World Championship as a member of the Ducati Ducati Motor Holding S.p.A. () is the motorcycle-manufacturing division of Italian company Ducati, headquartered in Bologna, Italy. The company is directly owned by Italian automotive manufacturer Lamborghini, whose German parent company is Au ... factory racing team, winning that championship in , and finishing as runner-up in and . He is still only one of four native European riders from outside of the United Kingdom to have won the World Superbike Title. Career statistics Grand Prix motorcycle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marco Lucchinelli
Marco Lucchinelli (born 26 June 1954) is an Italian former professional Grand Prix motorcycle road racer. He was 1981 FIM Road Racing World Champion with Suzuki. He is a MotoGP Legend. Career Lucchinelli was born in Bolano. He began his road racing career in 1975 on a Laverda in endurance racing. His riding impressed the Yamaha factory enough to earn him a sponsored bike in the Italian National Championship as well as a ride in the 1975 Nations Grand Prix in the 350 class. In 1976 he rode a Suzuki in the 500cc World Championship earning fourth place in the championship with two second-place finishes along with a third and a fourth place. He earned the nickname ''Crazy Horse'' for his wild riding style that attracted many fans. This fearless riding style also meant that he crashed quite often. In the 1977 season, he would drop to 11th place in the 500 World Championship on a Yamaha. Lucchinelli returned to Suzuki for the 1978 season and in 1980, he won his first 500cc G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ayrton Senna
Ayrton Senna da Silva (; 21 March 1960 – 1 May 1994) was a Brazilian racing driver who won the Formula One World Drivers' Championship in , , and . Senna is one of three Formula One drivers from Brazil to win the World Championship and won 41 Grands Prix and 65 pole positions, with the latter being the record until 2006. He died in an accident while leading the 1994 San Marino Grand Prix, driving for the Williams team. Senna is considered by media, commentators and fans to be one of the greatest F1 drivers in the history of the sport. Senna began his motorsport career in karting, moved up to open-wheel racing in 1981 and won the 1983 British Formula Three Championship. He made his Formula One debut with Toleman- Hart in 1984, before moving to Lotus-Renault the following year and winning six Grands Prix over the next three seasons. In 1988, he joined Frenchman Alain Prost at McLaren-Honda. Between them, they won all but one of the 16 Grands Prix that year, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Motorcycle Frame
A motorcycle frame is a motorcycle's core structure. It supports the engine, provides a location for the steering and rear suspension, and supports the rider and any passenger or luggage. Also attached to the frame are the fuel tank and battery. At the front of the frame is found the steering head tube that holds the pivoting front fork, while at the rear there is a pivot point for the swingarm suspension motion. Some motorcycles include the engine as a load-bearing stressed member; while some other bikes do not use a single frame, but instead have a front and a rear subframe attached to the engine. Materials In the early days, motorcycles were little more than motorised bicycles, and consequently frames were tubular steel. While the use of steel tubing is still common, in modern times other materials, such as titanium, aluminium, magnesium, and carbon-fibre, along with composites of these materials, are now used. As different motorcycles have varying design parameters (such ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crankcase
In a piston engine, the crankcase is the housing that surrounds the crankshaft. In most modern engines, the crankcase is integrated into the engine block. Two-stroke engines typically use a crankcase-compression design, resulting in the fuel/air mixture passing through the crankcase before entering the cylinder(s). This design of the engine does not include an oil sump in the crankcase. Four-stroke engines typically have an oil sump at the bottom of the crankcase and the majority of the engine's oil is held within the crankcase. The fuel/air mixture does not pass through the crankcase in a four-stroke engine, however a small amount of exhaust gasses often enter as "blow-by" from the combustion chamber. The crankcase often forms the lower half of the main bearing journals (with the bearing caps forming the other half), although in some engines the crankcase completely surrounds the main bearing journals. An ''open-crank'' engine has no crankcase. This design was used in ear ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ducati Pantah
The Ducati Pantah was an Italian motorcycle with a 90° V-twin engine, produced between 1980 and 1986. Unlike its predecessors which were bevel-gear OHC designs, the Pantah was the first Ducati to have belt-driven camshaft motors, thus forming the vanguard of the new generation of current Ducati V-twins. First shown December 1979, the Pantah came on the market as the 1980 500SL and the last of the line, the 650SL, was sold in 1986. Successful in racing as the 600 cc TT2 and later TT1 750 cc racer, the Pantah was a lighter, shorter wheelbase motorcycle, in a new trellis frame that was to become a trademark Ducati feature. Pantah 500 cc When Ducati's 1976 350 cc and 500 cc parallel twins proved to be a marketing failure, Fabio Taglioni went to work developing the a replacement. The Pantah 500 was developed from the last of the GP500 racers of 1973, the Pantah and its successors have shown that, contrary to the "received wisdom", a twin-cylinder biker can com ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bol D'Or
The Bol d’Or is a 24-hour endurance race for motorcycles, held annually in France. The riding of each bike is now shared by a team of three riders. History The Bol d’Or, first organized by Eugene Mauve, in 1922, was a race for motorcycles, and automobiles limited to 1100cc engine capacity (in the 1950s the limit was raised to 1500cc, and later to 2000cc). Today, the Bol d’Or is exclusively a race for motorcycles, although there are a number of side "attractions", such as races for amateur riders and for classic bikes. Prior to 1953 only one rider per machine was permitted. The record holder with seven victories, Frenchman Gustave Lefèvre, won with an average speed of 107 kilometers/hour riding his Norton Manx for the whole 24 hours. From 1954 to 1977 the teams comprised two riders, and then, in the interests of safety, this was increased to three. Until 1970 the race was held at various circuits, mainly Linas-Montlhéry and Saint-Germain-en-Laye. From 1971 to 1977 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pantah
The Ducati Pantah was an Italian motorcycle with a 90° V-twin engine, produced between 1980 and 1986. Unlike its predecessors which were bevel-gear OHC designs, the Pantah was the first Ducati to have belt-driven camshaft motors, thus forming the vanguard of the new generation of current Ducati V-twins. First shown December 1979, the Pantah came on the market as the 1980 500SL and the last of the line, the 650SL, was sold in 1986. Successful in racing as the 600 cc TT2 and later TT1 750 cc racer, the Pantah was a lighter, shorter wheelbase motorcycle, in a new trellis frame that was to become a trademark Ducati feature. Pantah 500 cc When Ducati's 1976 350 cc and 500 cc parallel twins proved to be a marketing failure, Fabio Taglioni went to work developing the a replacement. The Pantah 500 was developed from the last of the GP500 racers of 1973, the Pantah and its successors have shown that, contrary to the "received wisdom", a twin-cylinder biker can com ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Bologna
The University of Bologna ( it, Alma Mater Studiorum – Università di Bologna, UNIBO) is a public research university in Bologna, Italy. Founded in 1088 by an organised guild of students (''studiorum''), it is the oldest university in continuous operation in the world, and the first degree-awarding institution of higher learning. At its foundation, the word ''universitas'' was first coined.Hunt Janin: "The university in medieval life, 1179–1499", McFarland, 2008, , p. 55f.de Ridder-Symoens, Hilde''A History of the University in Europe: Volume 1, Universities in the Middle Ages'' Cambridge University Press, 1992, , pp. 47–55 With over 90,000 students, it is the second largest university in Italy after La Sapienza in Rome. It was the first place of study to use the term ''universitas'' for the corporations of students and masters, which came to define the institution (especially its law school) located in Bologna. The university's emblem carries the motto, ''Alma Mater Stud ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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