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Tehuelche (motorcycle)
Tehuelche was an Argentina, Argentine motorcycle that was produced between March 1957 and 1964. The Tehuelche was the only Argentine motorcycle that was mass-produced continuously in Argentina for seven years. The Tehuelche competed with the Puma (motorcycle), Puma Primera and Puma Segunda (from Guericke), the Zanella (from Ceccato), and the Gilera,. The Tehuelche distinguished itself not only by the characteristic sound of the gear train (SOHC engine), but also for its performance in its racing career. Design The creators of the Tehuelche were Juan Raffaldi and Roberto Fattorini. The two men moved to Argentina from Italy in 1949, specifically for this project. Raffaldi and Fattorini brought machinery and capital for the Tehuelche. In 1955, the two men created a design for the Telhuelche. Raffaldi then created a four-stroke engine of 50 cc displacement (single overhead camshaft- SOHC). This design was a little unusual for its time, because until then, it had been used pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tehuelche Con Alberto Gomez 1964
Tehuelche or Tehuelches may refer to: * the Tehuelche people of Patagonia * the Tehuelche language, an extinct language once spoken by the Tehuelche people. * Tehuelche (motorcycle), produced in Argentina from 1957 to 1964 * IA 51 Tehuelche single engined light utility aircraft, developed in the late 1950s in Argentina * El Tehuelche Airport, Chubut province, Argentina, served by two commercial airlines and base of the local flying club * Tehuelches Department, Chubut Province, Argentina * Villa Tehuelches, a village in Magallanes Province, Chile {{disambig Language and nationality disambiguation pages ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Speedometer
A speedometer or speed meter is a gauge that measures and displays the instantaneous speed of a vehicle. Now universally fitted to motor vehicles, they started to be available as options in the early 20th century, and as standard equipment from about 1910 onwards. Other vehicles may use devices analogous to the speedometer with different means of sensing speed, eg. boats use a pit log, while aircraft use an airspeed indicator. Charles Babbage is credited with creating an early type of a speedometer, which was usually fitted to locomotives. The electric speedometer was invented by the Croatian Josip Belušić in 1888 and was originally called a velocimeter. Operation The speedometer was originally patented by Josip Belušić (Giuseppe Bellussich) in 1888. He presented his invention at the 1889 Exposition Universelle in Paris. His invention had a pointer and a magnet, using electricity to work. German inventor Otto Schultze patented his version (which, like Belušić's, ra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dell'Orto
Dell'Orto is an Italian company, headquartered in Cabiate, specialized in the construction of carburetors and electronic injection systems. The company was founded in 1933 as "Società anonima Gaetano Dell'Orto e figli" (Gaetano Dell’Orto and Sons) but actually only founded by Gaetano's sons, Luigi Piero and Giuseppe. The first production was carburetors for motorbikes. Right before World War II the company started producing carburetors with aluminum body, for competitive racing. Under the second Dell'Orto generation, towards the end of the 60s, the company began producing OEM carburetors for the Fiat group, as well as other Italian and foreign manufacturers (i.e. Flandria, Belgium). At the end of the 1980s, under the supervision of Luigi Dell'Orto (son of Gaetano), the company's first injection systems were released. In 2006, the company expanded on the Indian market, opening Dell'Orto India. In September 2009, Dell’Orto India Private Limited, founded in 2006 with the coope ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wet Sump
Within piston engines, a wet sump is part of a lubrication system whereby the crankcase sump is used as an integral oil reservoir. An alternative system is the dry sump, whereby oil is pumped from a shallow sump into an external reservoir.Wet sump and dry sump compared - https://www.knowyourparts.com/technical-resources/engine/oil-system-differences/#:~:text=Dry%20Oil%20Systems%20Wet%20sump%20systems%20store%20the,is%20used%20to%20pump%20oil%20from%20the%20motor. Piston engines are lubricated by oil which is pumped into various bearings, and thereafter allowed to drain to the base of the engine under gravity. In most production automobiles and motorcycles, which use a wet sump system, the oil is collected in a capacity pan at the base of the engine, known as the sump or oil pan, where it is pumped back up to the bearings by the internal oil pump. A wet sump offers the advantage of a simple design, using a single pump and no external reservoir. Since the sump is internal, th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rocker Arm
In the context of an internal combustion engine, a rocker arm is a valvetrain component that typically transfers the motion of a pushrod to the corresponding intake/exhaust valve. Rocker arms in automobiles are typically made from stamped steel, or aluminum in higher-revving applications. Some rocker arms (called ''roller rockers'') include a bearing at the contact point, to reduce wear and friction at the contact point. Overview In the typical use-case of an overhead valve (pushrod) engine, the camshaft at the bottom of the engine pushes the pushrod upwards. The top of the pushrod presses upwards on one side of the rocker arm (located at the top of the engine), which causes the rocker arm to rotate. This rotation causes the other end of the rocker arm to press downwards on the top of the valve, which opens the valve by moving it downwards. A ''roller rocker'' is a rocker arm that uses needle bearings (or a single bearing ball in older engines) at the contact point between the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Compression Ratio
The compression ratio is the ratio between the volume of the cylinder and combustion chamber in an internal combustion engine at their maximum and minimum values. A fundamental specification for such engines, it is measured two ways: the static compression ratio, calculated based on the relative volumes of the combustion chamber and the cylinder when the piston is at the bottom of its stroke, and the volume of the combustion chamber when the piston is at the top of its stroke. The dynamic compression ratio is a more advanced calculation which also takes into account gasses entering and exiting the cylinder during the compression phase. Effect and typical ratios A high compression ratio is desirable because it allows an engine to extract more mechanical energy from a given mass of air–fuel mixture due to its higher thermal efficiency. This occurs because internal combustion engines are heat engines, and higher compression ratios permit the same combustion temperature to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tehuelche Propaganda 1960
Tehuelche or Tehuelches may refer to: * the Tehuelche people of Patagonia * the Tehuelche language, an extinct language once spoken by the Tehuelche people. * Tehuelche (motorcycle), produced in Argentina from 1957 to 1964 * IA 51 Tehuelche single engined light utility aircraft, developed in the late 1950s in Argentina * El Tehuelche Airport, Chubut province, Argentina, served by two commercial airlines and base of the local flying club * Tehuelches Department, Chubut Province, Argentina * Villa Tehuelches Villa Tehuelches is a Chilean village (pop. 151) and capital of the commune ( es, comuna) of Laguna Blanca in the Magallanes Province, Magallanes and Antartica Chilena Region. This area of Patagonian plains ( qu, pampas) is suitable for livestock ..., a village in Magallanes Province, Chile {{disambig Language and nationality disambiguation pages ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tehuelche Propaganda 1957
Tehuelche or Tehuelches may refer to: * the Tehuelche people of Patagonia * the Tehuelche language, an extinct language once spoken by the Tehuelche people. * Tehuelche (motorcycle), produced in Argentina from 1957 to 1964 * IA 51 Tehuelche single engined light utility aircraft, developed in the late 1950s in Argentina * El Tehuelche Airport, Chubut province, Argentina, served by two commercial airlines and base of the local flying club * Tehuelches Department, Chubut Province, Argentina * Villa Tehuelches Villa Tehuelches is a Chilean village (pop. 151) and capital of the commune ( es, comuna) of Laguna Blanca in the Magallanes Province, Magallanes and Antartica Chilena Region. This area of Patagonian plains ( qu, pampas) is suitable for livestock ..., a village in Magallanes Province, Chile {{disambig Language and nationality disambiguation pages ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hyperinflation
In economics, hyperinflation is a very high and typically accelerating inflation. It quickly erodes the real value of the local currency, as the prices of all goods increase. This causes people to minimize their holdings in that currency as they usually switch to more stable foreign currencies. When measured in stable foreign currencies, prices typically remain stable. Unlike low inflation, where the process of rising prices is protracted and not generally noticeable except by studying past market prices, hyperinflation sees a rapid and continuing increase in nominal prices, the nominal cost of goods, and in the supply of currency. Typically, however, the general price level rises even more rapidly than the money supply as people try ridding themselves of the devaluing currency as quickly as possible. As this happens, the real stock of money (i.e., the amount of circulating money divided by the price level) decreases considerably.Bernholz, Peter 2003, chapter 5.3 Almost all ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Camshaft
A camshaft is a shaft that contains a row of pointed cams, in order to convert rotational motion to reciprocating motion. Camshafts are used in piston engines (to operate the intake and exhaust valves), mechanically controlled ignition systems and early electric motor speed controllers. Camshafts in piston engines are usually made from steel or cast iron, and the shape of the cams greatly affects the engine's characteristics. History Trip hammers are one of the early uses of a form of cam to convert rotating motion, e.g. from a waterwheel, into the reciprocating motion of a hammer used in forging or to pound grain. Evidence for these exists back to the Han Dynasty in China, and they were widespread by the medieval period. The camshaft was described in 1206 by engineer Al-Jazari. He employed it as part of his automata, water-raising machines, and water clocks such as the castle clock. Once the rotative version of the steam engine was developed in the late 18th century, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Engine Capacity
Engine displacement is the measure of the cylinder volume swept by all of the pistons of a piston engine, excluding the combustion chambers. It is commonly used as an expression of an engine's size, and by extension as a loose indicator of the power an engine might be capable of producing and the amount of fuel it should be expected to consume. For this reason displacement is one of the measures often used in advertising, as well as regulating, motor vehicles. It is usually expressed using the metric units of cubic centimetres (cc or cm3, equivalent to millilitres) or litres (l or L), orparticularly in the United States cubic inches (CID, cu in, or in3). Definition The overall displacement for a typical reciprocating piston engine is calculated by multiplying together three values; the distance travelled by the piston (the stroke length), the circular area of the cylinder, and the number of cylinders in the whole engine. The formula is: : \text = \text \times \frac \times ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
