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Piaggio Boxer
The Piaggio Boxer is a moped produced by the Italian manufacturer Piaggio. History The '' first series '' of the Boxer was built using the underseat as a tank (plastic tank), it had 18-inch high wheels and a small single-seater saddle. Long saddle upon request. Rare examples of the first series had the front suspension of the '' shackle '' type already used on the Piaggio Ciao (version B1M); but the vast majority of Boxers left the assembly line with the telescopic fork (B2V and B3M versions). It had the transmission in two versions: with variator of speed with expandable pulleys and clutch automatic centrifugal (B2V version), or with the only centrifugal clutch and final pulley (versions B1M and B3M). Another novelty was the displacement of the identification plate, bearing the chassis number, at the end of the rear fender. The '' second series '' called Boxer 2 differs from the previous one for the stickers, the frame profile, the front fender without rods, gray plastic an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Piaggio
Piaggio & C. SpA (Piaggio ) is an Italian motor vehicle manufacturer, which produces a range of two-wheeled motor vehicles and compact commercial vehicles under seven brands: Piaggio, Vespa, Gilera, Aprilia, Moto Guzzi, Derbi, and Scarabeo. Its corporate headquarters are located in Pontedera, Italy. The company was founded by Rinaldo Piaggio in 1884, initially producing locomotives and Railroad car, railway carriages. Piaggio's subsidiaries employ a total of 7,053 employees and produced a total of 519,700 vehicles in 2014. The manufacturer has six research-and-development centers and operates in over 50 countries. History In 1882, Enrico Piaggio purchased land in Sestri Ponente (Genoa) to set up a timber yard. Two years later, in 1884, his 20-year-old son, :it:Rinaldo Piaggio, Rinaldo Piaggio (1864–1938), founded Piaggio & C. The company initially built locomotives and railway carriages but in 1917, towards the end of World War I, Rinaldo Piaggio turned to the military sector ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Suspension (mechanics)
In mechanics, suspension is a system of components allowing a machine (normally a vehicle) to move smoothly with reduced shock. Types may include: * car suspension, four-wheeled motor vehicle suspension * motorcycle suspension, two-wheeled motor vehicle suspension ** Motorcycle fork, a component of motorcycle suspension system * bicycle suspension Related concepts include: * Shock absorber *Shock mount *Vibration isolation * Magnetic suspension **Electrodynamic suspension **Electromagnetic suspension See also * Cardan suspension *Seismic base isolation Seismic base isolation, also known as base isolation, or base isolation system, is one of the most popular means of protecting a structure against earthquake forces. It is a collection of structural elements which should substantially decoup ... Mechanics ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Engine
An engine or motor is a machine designed to convert one or more forms of energy into mechanical energy. Available energy sources include potential energy (e.g. energy of the Earth's gravitational field as exploited in hydroelectric power generation), heat energy (e.g. geothermal), chemical energy, electric potential and nuclear energy (from nuclear fission or nuclear fusion). Many of these processes generate heat as an intermediate energy form, so heat engines have special importance. Some natural processes, such as atmospheric convection cells convert environmental heat into motion (e.g. in the form of rising air currents). Mechanical energy is of particular importance in transportation, but also plays a role in many industrial processes such as cutting, grinding, crushing, and mixing. Mechanical heat engines convert heat into work via various thermodynamic processes. The internal combustion engine is perhaps the most common example of a mechanical heat engine, in which he ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chassis
A chassis (, ; plural ''chassis'' from French châssis ) is the load-bearing framework of an artificial object, which structurally supports the object in its construction and function. An example of a chassis is a vehicle frame, the underpart of a motor vehicle, on which the body is mounted; if the running gear such as wheels and transmission, and sometimes even the driver's seat, are included, then the assembly is described as a rolling chassis. Examples of use Vehicles In the case of vehicles, the term ''rolling chassis'' means the frame plus the "running gear" like engine, transmission, drive shaft, differential and suspension. An underbody (sometimes referred to as "coachwork"), which is usually not necessary for integrity of the structure, is built on the chassis to complete the vehicle. For commercial vehicles, a rolling chassis consists of an assembly of all the essential parts of a truck without the body to be ready for operation on the road. A car chassis wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clutch
A clutch is a mechanical device that engages and disengages power transmission, especially from a drive shaft to a driven shaft. In the simplest application, clutches connect and disconnect two rotating shafts (drive shafts or line shafts). In these devices, one shaft is typically attached to an engine or other power unit (the driving member), while the other shaft (the driven member) provides output power for work. Typically the motions involved are rotary, but linear clutches also exist. In a motor vehicle, the clutch acts as a mechanical linkage between the engine and transmission, and briefly disconnects, or separates the engine from the transmission system. This disconnects the drive wheels whenever the clutch pedal is depressed, allowing the driver to smoothly change gears. In a torque-controlled drill, for instance, one shaft is driven by a motor, and the other drives a drill chuck. The clutch connects the two shafts so they may be locked together and spin at the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Variomatic
Variomatic is the continuously variable transmission (CVT) of the Dutch car manufacturer DAF, originally developed by Hub van Doorne. It is a stepless, fully-automatic transmission, consisting of a V-shaped drive-belt, and two pulleys, each of two cones, whose effective diameter can be changed so that the "V" belt runs nearer the spindle or nearer the rim, depending on the separation of the cones. These are synchronized so that the belt always remains at the same optimal tension. History The Variomatic was the first commercially successful CVT (as opposed to shifting between separate gears). In theory, this always produces the optimum torque. The Variomatic was introduced by DAF in 1958, also putting an automatic gearbox in the Netherlands for the first time. The ''Variomatic'' was introduced on the DAF 600. Efficiency Because most of the time the engine runs at its most economical speed, the fuel consumption of this car was acceptable, although the fuel efficiency of any mec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Propulsion Transmission
Propulsion transmission is the mode of transmitting and controlling propulsion power of a machine. The term ''transmission'' properly refers to the whole drivetrain, including clutch, gearbox, prop shaft (for rear-wheel drive vehicles), differential, and final drive shafts. In the United States the term is sometimes used in casual speech to refer more specifically to the gearbox alone, and detailed usage differs. The transmission reduces the higher engine speed to the slower wheel speed, increasing torque in the process. Transmissions are also used on pedal bicycles, fixed machines, and where different rotational speeds and torques are adapted. Often, a transmission has multiple gear ratios (or simply "gears") with the ability to switch between them as the speed varies. This switching may be done manually (by the operator) or automatically (by a control unit). Directional (forward and reverse) control may also be provided. Single-ratio transmissions also exist, which simply chan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fork
In cutlery or kitchenware, a fork (from la, furca 'pitchfork') is a utensil, now usually made of metal, whose long handle terminates in a head that branches into several narrow and often slightly curved tines with which one can spear foods either to hold them to cut with a knife or to lift them to the mouth. History Bone forks have been found in archaeological sites of the Bronze Age Qijia culture (2400–1900 BC), the Shang dynasty (c. 1600–c. 1050 BC), as well as later Chinese dynasties.Needham (2000). ''Science and Civilisation in China. Volume 6: Biology and biological technology. Part V: Fermentations and food science.'' Cambridge University Press. Pages 105–110. A stone carving from an Eastern Han tomb (in Ta-kua-liang, Suide County, Shaanxi) depicts three hanging two-pronged forks in a dining scene. Similar forks have also been depicted on top of a stove in a scene at another Eastern Han tomb (in Suide County, Shaanxi). In Ancient Egypt, large forks were used as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wheel
A wheel is a circular component that is intended to rotate on an axle Bearing (mechanical), bearing. The wheel is one of the key components of the wheel and axle which is one of the Simple machine, six simple machines. Wheels, in conjunction with axles, allow heavy objects to be moved easily facilitating movement or transportation while supporting a load, or performing labor in machines. Wheels are also used for other purposes, such as a ship's wheel, steering wheel, potter's wheel, and flywheel. Common examples are found in transport applications. A wheel reduces friction by facilitating motion by rolling together with the use of Axle, axles. In order for wheels to rotate, a Moment (physics), moment needs to be applied to the wheel about its axis, either by way of gravity or by the application of another external force or torque. Using the wheel, Sumer, Sumerians invented a device that spins clay as a potter shapes it into the desired object. Terminology The English word '':wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pontedera
Pontedera (; la, Pons Herae) is an italian comune with a population of 29.270 inhabitants, located in the province of Pisa, Tuscany, Central Italy, central Italy. The town is located 20 km (12 miles) from Pisa and 50 km (31 miles) from Florence. It houses the headquarters of the Piaggio company, of the Castellani (wine), Castellani winery and of the Amedei premium artisan chocolate factory. Pontedera is in the Arno Valley at the confluence of the Era River and the Arno River. Its territory is also crossed by the Scolmatore dell'Arno canal, and by the Roglio, a tributary of the Era. There is also a small lake, in the ''frazione'' of La Rotta, Pontedera, La Rotta, known as Braccini lake. The football team in the town is called U.S. Città di Pontedera, and they are currently placed in Serie C. History Pontedera was the seat of several historical battles. In 1369, the Milanese army of Barnabò Visconti, led by John Hawkwood, was defeated here by the Republic of Florence, Flor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moped
A moped ( ) is a type of small motorcycle, generally having a less stringent licensing requirement than full motorcycles or automobiles. The term used to mean a similar vehicle except with both bicycle pedals and a motorcycle engine. Mopeds typically travel only a bit faster than bicycles on public roads. Mopeds are distinguished from motor scooters in that the latter tend to be more powerful and subject to more regulation. Some mopeds have a step-through frame design, while others have motorcycle frame designs, including a backbone and a raised fuel tank, mounted directly between the saddle and the head tube. Some resemble motorized bicycles. Most are similar to a regular motorcycle but with pedals and a crankset that may be used with or instead of motor drive. Although mopeds usually have two wheels, some jurisdictions classify low-powered three- or four-wheeled vehicles (including ATVs and go-kart) as a moped. In some countries, a moped can be any motorcycle with an engine c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gilera CB1
The Gilera CB1 is a moped produced by the Italian manufacturer Gilera from 1975 to 1989. History It was equipped with a classic single-cylinder 2-stroke 49 cm3 air-cooled engine. Unlike other mopeds of its generation it was equipped with a 4-speed gearbox and a vertical cylinder in chromed aluminum with crank start and the classic final chain drive. The engine was derived from the engines of the road, cross and trial models, more robust and performing than those that equipped the other main Piaggio Group mopeds (Gilera CBA, Piaggio Si, Ciao, Boxer and Bravo) equipped with the classic single-speed horizontal cylinder. The tank was built inside the twin-tubular frame, designed by the designer Paolo Martin, as well as the Gilera CBA. It featured a robust and complete suspension system with a hydraulic telescopic fork at the front and a pair of rear hydraulic shock absorbers. 17" front wheel and 16" rear wheel. The braking system A brake is a mechanical device that inhibits ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
