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Porsche Spyder
The Porsche 550 is a racing sports car produced by Porsche from 1953 until 1956. In that time only 90 Porsche 550s were produced, and they quickly established dominance in the 1.1- and 1.5- liter classes. The Porsche 550 is a mid-engine car with an air-cooled four-cylinder engine, following the precedent of the 1948 Porsche 356/1 prototype designed by Ferry Porsche. The mid-engine racing design was further developed with Porsche's 718 model; its advantages led to it becoming the dominant design for top-level racing cars by the mid-1960s. The Porsche 550 has a solid racing history; it won the Nürburgring Eifel Race in May 1953, the first race it entered. The 550 Spyder usually finished in the top three in its class. Each Spyder was designed and customized to be raced. A 1958 Porsche 550A Spyder sold at auction in 2018 by Bonhams for $5,170,000 (£4,115,763); it was the highest price for a 550 at auction. Engine and transmission The Type 550/550 A is powered by an all ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Porsche
Dr. Ing. h.c. F. Porsche AG, usually shortened to Porsche (; see below), is a German automobile manufacturer specializing in luxury, high-performance sports cars, SUVs and sedans, headquartered in Stuttgart, Baden-Württemberg, Germany. The company is owned by Volkswagen AG, a controlling stake of which is owned by Porsche Automobil Holding SE, usually shortened to Porsche SE. Porsche's current lineup includes the 718, 911, Panamera, Macan, Cayenne and Taycan. The origins of the company date to the 1930s when German Bohemian automotive engineer Ferdinand Porsche founded Porsche with Adolf Rosenberger, a keystone figure in the creation of German automotive manufacturer and Audi precursor Auto Union, and Austrian businessman Anton Piëch, who was, at the time, also Ferdinand Porsche's son in law. In its early days, it was contracted by the German government to create a vehicle for the masses, which later became the Volkswagen Beetle. After World War II, when Ferd ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Naturally Aspirated Engine
A naturally aspirated engine, also known as a normally aspirated engine, and abbreviated to N/A or NA, is an internal combustion engine in which air intake depends solely on atmospheric pressure and does not have forced induction through a turbocharger or a supercharger. Description In a naturally aspirated engine, air for combustion ( Diesel cycle in a diesel engine or specific types of Otto cycle in petrol engines, namely petrol direct injection) or an air/fuel mixture (traditional Otto cycle petrol engines), is drawn into the engine's cylinders by atmospheric pressure acting against a partial vacuum that occurs as the piston travels downwards toward bottom dead centre during the intake stroke. Owing to innate restriction in the engine's inlet tract, which includes the intake manifold, a small pressure drop occurs as air is drawn in, resulting in a volumetric efficiency of less than 100 percent—and a less than complete air charge in the cylinder. The density of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grand Prix Motor Racing
Grand Prix motor racing, a form of motorsport competition, has its roots in organised automobile racing that began in France as early as 1894. It quickly evolved from simple road races from one town to the next, to endurance tests for car and driver. Innovation and the drive of competition soon saw speeds exceeding , but because early races took place on open roads, accidents occurred frequently, resulting in deaths both of drivers and of spectators. A common abbreviation used for Grand Prix racing is "GP" or "GP racing". Grand Prix motor racing eventually evolved into formula racing, with Formula One considered its direct descendant. Each event of the Formula One World Championships is still called a ''Grand Prix''; Formula One is also referred to as "Grand Prix racing". Some IndyCar championship races are also called "Grands Prix". Origins of organised racing Motor racing was started in France, as a direct result of the enthusiasm with which the French public embrace ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Auto Union Racing Car
The Auto Union Grand Prix racing cars types A to D were developed and built by a specialist racing department of Auto Union's Horch works in Zwickau, Germany, between 1933 and 1939, after the company bought a design by Dr. Ferdinand Porsche in 1933. The Auto Union type B streamlined body was designed by Paul Jaray. Of the four Auto Union racing cars, the Types A, B and C, used from 1934 to 1937 had supercharged V16 engines, and the final car, the Type D used in 1938 and 1939 (built to new 1938 regulations), had a supercharged 3L V12 that developed almost 550 horsepower. All of the designs were difficult to handle due to extreme power/weight ratios (wheelspin could be induced at over ), and marked oversteer due to uneven weight distribution (all models were tail heavy). The Type D was easier to drive because of its smaller, lower mass engine that was better positioned toward the vehicle's center of mass. Between 1935 and 1937, Auto Unions won 25 races, driven by Ernst von Deliu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ferdinand Porsche
Ferdinand Porsche (3 September 1875 – 30 January 1951) was a German automotive engineering, automotive engineer and founder of the Porsche, Porsche AG. He is best known for creating the first Petrol engine, gasoline–Electric motor, electric Hybrid electric vehicle, hybrid vehicle (Lohner–Porsche), the Volkswagen Beetle, the Auto Union racing cars, the Mercedes-Benz SSK, Mercedes-Benz SS/SSK, and several other important developments and Porsche automobiles. An important contributor to the German war effort during World War II, Porsche was involved in the production of advanced tanks such as the VK 45.01 (P), the Elefant (initially called "Ferdinand") self-propelled gun, and the Panzer VIII Maus super-heavy tank, as well as other weapon systems, including the V-1 flying bomb. Porsche was a member of the Nazi Party and an SS-Ehrenführer, honorary Oberführer of the Allgemeine SS. He was a recipient of the German National Prize for Art and Science, the SS-Ehrenring and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Torque
In physics and mechanics, torque is the rotational analogue of linear force. It is also referred to as the moment of force (also abbreviated to moment). The symbol for torque is typically \boldsymbol\tau, the lowercase Greek letter ''tau''. When being referred to as moment of force, it is commonly denoted by . Just as a linear force is a push or a pull applied to a body, a torque can be thought of as a twist applied to an object with respect to a chosen point; for example, driving a screw uses torque to force it into an object, which is applied by the screwdriver rotating around its axis to the drives on the head. Historical terminology The term ''torque'' (from Latin , 'to twist') is said to have been suggested by James Thomson and appeared in print in April, 1884. Usage is attested the same year by Silvanus P. Thompson in the first edition of ''Dynamo-Electric Machinery''. Thompson describes his usage of the term as follows: Today, torque is referred to using d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dual Ignition
Dual Ignition is a system for spark-ignition engines, whereby critical ignition components, such as spark plugs and magnetos, are duplicated. Dual ignition is most commonly employed on aero engines,Crane, Dale: ''Dictionary of Aeronautical Terms, third edition'', page 177. Aviation Supplies & Academics, 1997. Aviation Publishers Co. Limited, ''From the Ground Up'', (27th revised edition), page 67, and is sometimes found on cars and motorcycles. Dual ignition provides two advantages: redundancy in the event of in-flight failure of one ignition system; and more efficient burning of the fuel-air mixture within the combustion chamber. In aircraft and gasoline-powered fire fighting equipment, redundancy is the prime consideration, but in other vehicles the main targets are efficient combustion and meeting emission law requirements. Efficiency A dual ignition system will typically provide that each cylinder has twin spark plugs, and that the engine will have at least two ignition c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carburetors
A carburetor (also spelled carburettor or carburetter) is a device used by a gasoline internal combustion engine to control and mix air and fuel entering the engine. The primary method of adding fuel to the intake air is through the Venturi effect or Bernoulli's principle or with a Pitot tube in the main metering circuit, though various other components are also used to provide extra fuel or air in specific circumstances. Since the 1990s, carburetors have been largely replaced by fuel injection for cars and trucks, but carburetors are still used by some small engines (e.g. lawnmowers, generators, and concrete mixers) and motorcycles. In addition, they are still widely used on piston-engine–driven aircraft. Diesel engines have always used fuel injection instead of carburetors, as the compression-based combustion of diesel requires the greater precision and pressure of fuel injection. Etymology The term ''carburetor'' is derived from the verb ''carburet'', which means " ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solex Carburetor
Solex is a brand name owned by a subsidiary of Italian automotive parts manufacturer, Magneti Marelli. The original Solex company was French-owned and produced carburetors and gasoline powered bicycles. Solex carburetors were used by many European automotive companies including Rolls-Royce Motors, Land Rover Series, Land Rover, Mercedes-Benz, Volkswagen, and Porsche, and were also licensed to Japanese maker Mikuni (company), Mikuni. However, they are no longer made by any derivation of the original French firm. The company discontinued operations in France in 1988. Starting in 1992, it underwent a series of acquisitions and name changes. When ownership fell under the Magneti Marelli umbrella, production shifted to China and Hungary. Production in Hungary was discontinued in 2002, and then resumed in France in 2005 with a line of gasoline and electric-powered bikes and mopeds being sold, as of 2021, under the VéloSoleX name as part of the EasyBike Group. History The Solex c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cylinder (engine)
In an engine, the cylinder is the space in which a piston travels. The inner surface of the cylinder is formed from either a thin metallic liner (also called "sleeve") or a surface coating applied to the engine block. A piston is seated inside each cylinder by several metal piston rings, which also provide seals for compression and the lubricating oil. The piston rings do not actually touch the cylinder walls, instead they ride on a thin layer of lubricating oil. Steam engines The cylinder in a steam engine is made pressure-tight with end covers and a piston; a valve distributes the steam to the ends of the cylinder. Cylinders were cast in cast iron and later in steel. The cylinder casting can include other features such as valve ports and mounting feet. Internal combustion engines The cylinder is the space through which the piston travels, propelled by the energy generated from the combustion of the air/fuel mixture in the combustion chamber. In an air-cooled e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Overhead Camshaft
An overhead camshaft (OHC) engine is a piston engine in which the camshaft is located in the cylinder head above the combustion chamber. This contrasts with earlier overhead valve engines (OHV), where the camshaft is located below the combustion chamber in the engine block. ''Single overhead camshaft'' (SOHC) engines have one camshaft per cylinder bank, bank of cylinders. ''Dual overhead camshaft'' (DOHC, also known as "twin-cam") engines have two camshafts per bank. The first production car to use a DOHC engine was built in 1910. Use of DOHC engines slowly increased from the 1940s, leading to many automobiles by the early 2000s using DOHC engines. Design In an OHC engine, the camshaft is located at the top of the engine, above the combustion chamber. This contrasts the earlier overhead valve engine (OHV) and flathead engine configurations, where the camshaft is located down in the engine block. The valves in both OHC and OHV engines are located above the combustion chamber; ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Valvetrain
A valvetrain is a mechanical system that controls the operation of the intake and exhaust valves in an internal combustion engine. The intake valves control the flow of air/fuel mixture (or air alone for direct-injected engines) into the combustion chamber, while the exhaust valves control the flow of spent exhaust gases out of the combustion chamber once combustion is completed. Layout The valvetrain layout is largely dependent on the location of the camshaft. The common valvetrain configurations for piston engines, in order from oldest to newest, are: * Flathead engine: A single camshaft and the valves are located in the engine block below the cylinder or cylinder bank. * Overhead valve engine: A single camshaft remains in the block below the cylinder(s), however the valves are located in the cylinder head above the combustion chamber. * Overhead camshaft engine: Both the valves and one or more camshafts are located in the cylinder head above the cylinders or cylinder ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
