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Ducati Desmoquattro Engine
The Ducati Desmoquattro are water-cooled, four-valve engines from Ducati. They have been produced since 1985 in capacities from . Desmoquattro vs. Bipantah The Castiglioni brothers, from Cagiva, bought Ducati in May 1985, and decided to start new investments in order to compete with Japanese firms. To do this they needed a new powerful engine, so they had a look into different proposals from their technical department. The two best solutions were the Bipantah, a stillborn 994 cc air-cooled V4 and the ''Desmoquattro'', a liquid-cooled, multi-valve, fuel-injected evolution of 750 cc V-twin. After extensive technical discussions, the ''Desmoquattro'' became the preferred solution over the ''Bipantah'', because it could be easily installed inside the cradle of existing models. The Early Desmoquattro (851 - 996S) The water-cooled Ducati Desmoquattro engine that has dominated World Superbike racing was introduced in 1986 with the ''Ducati 748 IE'' racer ridden by Virginio Ferrari, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ducati Desmoquattro At 2009 Seattle International Motorcycle Show 2
Ducati Motor Holding S.p.A () is an Italian motorcycle manufacturing company headquartered in Bologna, Italy. History Barely a month after the official liberation of Italy in 1944, SIATA announced its intention to sell this engine, called the Ducati Cucciolo, "Cucciolo" (Italian for "puppy," in reference to the distinctive exhaust sound) to the public. The first Cucciolos were available alone, to be mounted on standard bicycles, by the buyer; however, businessmen soon bought the little engines in quantity, and offered complete motorized-bicycle units for sale. In 1950, after more than 200,000 Cucciolos had been sold, in collaboration with SIATA, the Ducati firm offered its own Cucciolo-based motorcycle. This first Ducati motorcycle was a 48 Cubic centimetre, cc bike weighing , with a top speed of , and had a giving just under . Ducati soon dropped the Cucciolo name in favor of "55M" and "65TL". When the market moved toward larger motorcycles, Ducati manageme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crankshaft
A crankshaft is a mechanical component used in a reciprocating engine, piston engine to convert the reciprocating motion into rotational motion. The crankshaft is a rotating Shaft (mechanical engineering), shaft containing one or more crankpins, that are driven by the pistons via the connecting rods. The crankpins are also called ''rod bearing journals'', and they rotate within the "big end" of the connecting rods. Most modern crankshafts are located in the engine block. They are made from steel or cast iron, using either a forging, casting (metalworking), casting or machining process. Design The crankshaft is located within the engine block and held in place via main bearings which allow the crankshaft to rotate within the block. The up-down motion of each piston is transferred to the crankshaft via connecting rods. A flywheel is often attached to one end of the crankshaft, in order to smoothen the power delivery and reduce vibration. A crankshaft is subjected to enormou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bike (magazine)
''Bike'' is a British motorcycle, motorcycling magazine that was established and edited by journalist Mark Williams (journalist), Mark Williams in 1971, originally as a one-off ''Car (magazine), Car'' magazine special. Taking a leaf out of ''Car'' magazine's book, ''Bike'' published "Giant Tests", namely, head-to-head comparison tests, which were innovative at the time. Before then, motorcycle journals and magazines would test bikes only individually and in isolation from other bikes. The first "Giant Test", in summer 1971, was a comparison between a BSA Rocket 3 and a Norton Commando. Mark Williams wrote a regular column entitled "Running out of Road". Other contributors included: LJK Setright, who wrote the "Cog-swapping" column; Jim Greening who wrote the "Short Circuits" column; and the pseudonymous "Hap Spoons" who wrote "Odds & Sods". For more than 30 years the magazine featured Paul Sample (cartoonist), Paul Sample's full-page comic-strip ''Ogri'', but that transferre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Butterfly Valve
A butterfly valve is a valve that isolates or regulates the flow of a fluid. The closing mechanism is a disk that rotates. Principle of operation Operation is similar to that of a ball valve, which allows for quick shut off. Butterfly valves are generally favored because they cost less than other valve designs, and are lighter weight so they need less support. The disc is positioned in the center of the pipe. A rod passes through the disc to an actuator on the outside of the valve. Rotating the actuator turns the disc either parallel or perpendicular to the flow. Unlike a ball valve, the disc is always present within the flow, so it induces a pressure drop, even when open. A butterfly valve is from a family of valves called quarter-turn valves. In operation, the valve is fully open or closed when the disc is rotated a quarter turn. The "butterfly" is a metal disc mounted on a rod. When the valve is closed, the disc is turned so that it completely blocks off the passageway. Wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Throttle Body
A throttle is a mechanism by which fluid flow is managed by construction or obstruction. An engine's power can be increased or decreased by the restriction of inlet gases (by the use of a throttle), but usually decreased. The term ''throttle'' has come to refer, informally, to any mechanism by which the power or speed of an engine is regulated, such as a car's accelerator pedal. What is often termed a ''throttle'' (in an aviation context) is also called a thrust lever, particularly for jet engine powered aircraft. For a steam locomotive, the valve which controls the steam is known as the regulator. Internal combustion engines In an internal combustion engine, the throttle is a means of controlling an engine's power by regulating the amount of fuel or air entering the engine. In a motor vehicle the control used by the driver to regulate power is sometimes called the throttle, accelerator, or gas pedal. For a gasoline engine, the throttle most commonly regulates the amount of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ducati 1098
The Ducati 1098 is a sport bike made by Ducati from 2007 to 2009, in three versions, the 1098, 1098S, and 1098R. The 1098 was succeeded by the 1198 in 2009, though the 1098R remained in production that year. The 1098 shares more design elements with the older 998 than with its predecessor the 999, such as horizontally placed headlights and a non-integrated exhaust system. Another carryover from its 916/998 heritage is the single-sided swingarm. The 1098 was designed by Ducati designer, Giandrea Fabbro. Performance The 1098/1098 S makes a manufacturer claimed , rear wheel, torque, rear wheel, and weighs . The 0-60 mph time is less than 3.0 seconds and 1/4 mile at 10.015 seconds at and top speed of . The 1098 R, with its larger displacement 1198 cc engine, makes a manufacturer claimed , torque. At the time of its release, these figures gave the 1098 the highest torque-to-weight ratio of any production sport bike ever made. Racing With the release of the 1098, Duca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ducati 749
The Ducati 749 is a 90° V-twin Desmodromic valve actuated engine sport bike built by Ducati Motor Holding between 2003 and 2007. Designed by Pierre Terblanche, the 749 was available as the 749, 749 Dark, 749S, and 749R. It shared many of its parts with the 999, with the exception of a slightly smaller 180/55 profile rear tire, smaller cylinders, and different cylinder heads, giving it a smaller displacement of 748 cc. This smaller engine is higher revving and produces a lower peak horsepower than the larger engine used in the 999. The 749S model, like the 999, incorporates features rarely found on production motorcycles, including adjustable rake (23.5° or 24.5°) and five-position adjustable rearset mounts. A limited number of the 749 were manufactured as a race version — the 749R — each with their production number stamped on the triple clamp – and initially cost almost twice the original 749 base model. This race model was lighter, had a shorter stroke, increas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ducati 999
The Ducati 999 is a sport bike made by Ducati from 2003 to 2006. It superseded the Massimo Tamburini designed Ducati 916, Ducati 996 and Ducati 998 range of superbikes. This motorcycle enjoyed great success in World Superbike, and was raced in the series through the 2007 season, despite no longer being produced, pending rules changes by the series' governing body, FIM, to allow competition of the new Ducati 1098. The 999 was designed by Pierre Terblanche, amid much controversy over its styling. It is known as a high performance, race oriented motorcycle. With its traditional Ducati L Twin Desmodromic Valve actuated engine layout, it has a linear power delivery, with high power and torque figures available even at low RPM. Additionally, with its high spec suspension and trellis chassis, it is one of the finest handling motorcycles for its time. The most beloved are the later model Monoposto with SBK rear trailing arm. Subsequently, more powerful 999S and 999R versions we ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ducati 998
The Ducati 998 is a Types of motorcycles#Sport bike, sport bike made by Ducati from 2002 to 2004. It was the successor to the Ducati 996 and the final variation on the Ducati 916. The new Ducati Desmoquattro motorcycles, Testastretta engine shared many similarities with the previous Desmoquattro engine in the 996, although it was completely new from the crankshaft up. Testastretta means narrow head and refers to a complete redesign of the cylinder heads. The desmodromic valve actuation method was retained. The 996 had a bore and stroke of . The bore and stroke of the 998 was more oversquare at . The included valve angle was reduced from 40 degrees on the 996 to 25 degrees on the 998. Valve sizes were increased, and the camshafts had slightly increased lift, but with shorter duration. Horsepower increased from 112 to 123. The 998R and non US 998S models had different crankcases with a deep oil sump. The standard 998 had crankcases which were very similar to the previous Desmoquattr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Foot-pound Force
The foot-pound force (symbol: ft⋅lbf, ft⋅lbf, or ft⋅lb ) is a unit of work or energy in the engineering and gravitational systems in United States customary and imperial units of measure. It is the energy transferred upon applying a force of one pound-force (lbf) through a linear displacement of one foot. The corresponding SI unit is the joule, though in terms of energy, one joule is not equal to one foot-pound. Usage The term ''foot-pound'' is also used as a unit of torque (see '' pound-foot (torque)''). In the United States this is often used to specify, for example, the tightness of a fastener (such as screws and nuts) or the output of an engine. Although they are dimensionally equivalent, energy (a scalar) and torque (a Euclidean vector) are distinct physical quantities. Both energy and torque can be expressed as a product of a force vector with a displacement vector (hence pounds and feet); energy is the scalar product of the two, and torque is the vector ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kilogram-force
The kilogram-force (kgf or kgF), or kilopond (kp, from ), is a non-standard Gravitational metric system, gravitational metric unit of force. It is not accepted for use with the International System of Units (SI) and is deprecated for most uses. The kilogram-force is equal to the magnitude of the force exerted on one kilogram of mass in a gravitational field (standard gravity, a conventional value approximating the average magnitude of gravity on Earth). That is, it is the weight of a kilogram under standard gravity. One kilogram-force is defined as .NIST]''Guide for the Use of the International System of Units (SI)''Special Publication 811, (1995) page 51 Similarly, a gram-force is , and a milligram-force is . History The gram-force and kilogram-force were never well-defined units until the CGPM adopted a ''standard acceleration of gravity'' of 9.80665 m/s2 for this purpose in 1901, though they had been used in low-precision measurements of force before that time. Even then, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Newton Metre
Newton most commonly refers to: * Isaac Newton (1642–1726/1727), English scientist * Newton (unit), SI unit of force named after Isaac Newton Newton may also refer to: People * Newton (surname), including a list of people with the surname * Newton (given name), including a list of people with the given name Arts and entertainment * Newton (film), ''Newton'' (film), a 2017 Indian film * Newton (band), Spanish electronic music group * Newton (Blake), ''Newton'' (Blake), a print by William Blake * Newton (Paolozzi), ''Newton'' (Paolozzi), a 1995 bronze sculpture by Eduardo Paolozzi * Cecil Newton (Coronation Street), Cecil Newton (''Coronation Street''), a character in the British soap opera ''Coronation Street'' * Curtis Newton, "real" name of pulp magazine character Captain Future * George Newton, a character in the film series ''Beethoven (franchise), Beethoven'' * Newton Gearloose, a Disney character, nephew of Gyro Gearloose * Newton, a character in ''The Mighty Hercules'' a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
