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Marlei (car)
The Marlei was a racing car built in Portugal by Mário Moreira Leite (bearing an acronym from his name) in the 1950s. It featured an aluminum body and Opel engine. Similar racing cars were constructed in Portugal during the same period when car races became very popular, including the ''DM'' (by Dionísio Mateu and Elísio de Melo), the ''Alba'', the ''Olda'', the ''FAP'' and the ''Etnerap''. History The project began in 1952 when a beyond recovery Opel Olympia Caravan entered the workshop of Oficina António Sardinha a Vila Nova de Gaia company, which had operations with General Motors. Mário Moreira Leite in his late 50s was the head mechanic at the workshop, he found interest in the Olympia Caravan and started building it into a sports car in his spare time. The bodywork was in a tubular form made up of single piece aluminum most parts of the car were sourced from GM and were highly modified. It featured an 4 cylinder water cooled Opel engine with displacement of 1488 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Portugal
Portugal, officially the Portuguese Republic ( pt, República Portuguesa, links=yes ), is a country whose mainland is located on the Iberian Peninsula of Southwestern Europe, and whose territory also includes the Atlantic archipelagos of the Azores and Madeira. It features the westernmost point in continental Europe, and its Iberian portion is bordered to the west and south by the Atlantic Ocean and to the north and east by Spain, the sole country to have a land border with Portugal. Its two archipelagos form two autonomous regions with their own regional governments. Lisbon is the capital and largest city by population. Portugal is the oldest continuously existing nation state on the Iberian Peninsula and one of the oldest in Europe, its territory having been continuously settled, invaded and fought over since prehistoric times. It was inhabited by pre-Celtic and Celtic peoples who had contact with Phoenicians and Ancient Greek traders, it was ruled by the Ro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aluminium
Aluminium (aluminum in American and Canadian English) is a chemical element with the symbol Al and atomic number 13. Aluminium has a density lower than those of other common metals, at approximately one third that of steel. It has a great affinity towards oxygen, and forms a protective layer of oxide on the surface when exposed to air. Aluminium visually resembles silver, both in its color and in its great ability to reflect light. It is soft, non-magnetic and ductile. It has one stable isotope, 27Al; this isotope is very common, making aluminium the twelfth most common element in the Universe. The radioactivity of 26Al is used in radiodating. Chemically, aluminium is a post-transition metal in the boron group; as is common for the group, aluminium forms compounds primarily in the +3 oxidation state. The aluminium cation Al3+ is small and highly charged; as such, it is polarizing, and bonds aluminium forms tend towards covalency. The strong affinity tow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Opel
Opel Automobile GmbH (), usually shortened to Opel, is a German automobile manufacturer which has been a subsidiary of Stellantis since 16 January 2021. It was owned by the American automaker General Motors from 1929 until 2017 and the PSA Group, a predecessor of Stellantis, from 2017 until 2021. Opel vehicles are sold in the United Kingdom as Vauxhall Motors, Vauxhall. Some Opel vehicles were badge engineering, badge-engineered in Australia under the Holden brand until 2020 and in North America and China under the Buick, Saturn Corporation, Saturn, and Cadillac brands. Opel traces its roots to a sewing machine manufacturer founded by Adam Opel in 1862 in Rüsselsheim am Main. The company began manufacturing bicycles in 1886 and produced its first automobile in 1899. With the Opel RAK program, the world's first rocket program, under the leadership of Fritz von Opel, the company played an important role in the history of aviation and spaceflight: Various land speed records were a ... [...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] |
Opel Olympia
The Opel Olympia is a compact car by German automaker Opel, then part of G.M., from 1935 to 1940, and after World War II continued from 1947 to 1953. It was one of the world's first mass-produced cars with a unitary body structure, after the 1934 Citroën Traction Avant; and it was a mass-production success, made in six-figure numbers. Opel achieved this even before the war, all while Hitler promised Germany a "Volkswagen" - a'' 'People's car','' which didn't materialize until 1946. From 1967-1970 the Olympia badge was briefly reused on a later car. The 1935 Olympia was Germany's first mass-produced car with an advanced all-metal unitary body - even a full monocoque in the case of the closed-roof saloon models. This for its time revolutionary technology supplanted the previously customary vehicle body, supported on top of a separate load-bearing chassis, reducing the car's weight by up to 180 kilograms (400 lb.) compared to its predecessor. Production of the unibody design ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vila Nova De Gaia
Vila Nova de Gaia (; cel-x-proto, Cale), or simply Gaia, is a city and a municipality in Porto District in Norte Region, Portugal. It is located south of the city of Porto on the other side of the Douro River. The city proper had a population of 178,255 in 2001. The municipality has an area of 168.46 km². and a total population of 302,295 inhabitants (2011), making it the most populous municipality in Norte Region. Gaia along with Porto and 12 other municipalities make up the commonly designated Porto Metropolitan Area. The city contains many cellars (locally known as "caves") where port wine is stored and aged. These cellars have become a major tourist attraction. History Vila Nova de Gaia already existed under the Roman Empire as the city of Cale. It developed most likely from a preexistent Celtic Castro, or Neolithic settlement. The origin of the name Cale (or Gale, since in Classical Latin there was not always a clear distinction between the letters "g" and "c") ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
General Motors
The General Motors Company (GM) is an American Multinational corporation, multinational Automotive industry, automotive manufacturing company headquartered in Detroit, Michigan, United States. It is the largest automaker in the United States and was the largest in the world for 77 years before losing the top spot to Toyota in 2008. General Motors operates manufacturing plants in eight countries. Its four core automobile brands are Chevrolet, Buick, GMC (automobile), GMC, and Cadillac. It also holds interests in Chinese brands Wuling Motors and Baojun as well as DMAX (engines), DMAX via joint ventures. Additionally, GM also owns the BrightDrop delivery vehicle manufacturer, GM Defense, a namesake Defense vehicles division which produces military vehicles for the United States government and military; the vehicle safety, security, and information services provider OnStar; the auto parts company ACDelco, a GM Financial, namesake financial lending service; and majority ownership in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
4 Cylinder
The engine configuration describes the fundamental operating principles by which internal combustion engines are categorized. Piston engines are often categorized by their cylinder layout, valves and camshafts. Wankel engines are often categorized by the number of rotors present. Gas turbine engines are often categorized into turbojets, turbofans, turboprops and turboshafts. Piston engines Piston engines are usually designed with the cylinders in lines parallel to the crankshaft. It is called a straight engine (or 'inline engine') when the cylinders arranged in a single line. Where the cylinders are arranged in two or more lines (such as in V engines or flat engines), each line of cylinders is referred to as a 'cylinder bank'. The angle between cylinder banks is called the 'bank angle'. Engines with multiple banks are shorter than straight engines and can be designed to cancel out the unbalanced forces from each bank, in order to reduce the vibration. Most engines with four ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Water-cooled Engine
Cooling tower and water discharge of a nuclear power plant Water cooling is a method of heat removal from components and industrial equipment. Evaporative cooling using water is often more efficient than air cooling. Water is inexpensive and non-toxic; however, it can contain impurities and cause corrosion. Water cooling is commonly used for cooling automobile internal combustion engines and power stations. Water coolers utilising convective heat transfer are used inside high-end personal computers to lower the temperature of CPUs. Other uses include the cooling of lubricant oil in pumps; for cooling purposes in heat exchangers; for cooling buildings in HVAC and in chillers. Mechanism Advantages Water is inexpensive, non-toxic, and available over most of the earth's surface. Liquid cooling offers higher thermal conductivity than air cooling. Water has unusually high specific heat capacity among commonly available liquids at room temperature and atmospheric pressure allowing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vauxhall Motors
Vauxhall Motors LimitedCompany No. 00135767. Incorporated 12 May 1914, name changed from Vauxhall Motors Limited to General Motors UK Limited on 16 April 2008, reverted to Vauxhall Motors Limited on 18 September 2017. () is a British car company headquartered in Chalton, England. Vauxhall became a subsidiary of Stellantis in January 2021. Vauxhall is one of the oldest established vehicle manufacturers and distribution companies in the United Kingdom. It sells passenger cars, electric and light commercial vehicles under the Vauxhall marque, and used to sell vans, buses, and trucks under the Bedford Vehicles brand. Vauxhall was founded by Alexander Wilson in 1857 as a pump and marine engine manufacturer. It was purchased by Andrew Betts Brown in 1863, who began producing travelling cranes under the company, renaming it "Vauxhall Iron Works". The company began manufacturing cars in 1903, and changed its name back around this time. It was acquired by American automaker General Mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transmission (mechanical Device)
A transmission (also called a gearbox) is a mechanical device which uses gears to change the speed or direction of rotation in a mechanical device. Many transmissions have multiple gear ratios, however there are also transmissions that use a single fixed gear ratio. Most currently-produced passenger cars with petrol or diesel engines use transmissions with 5-8 forward gear ratios and one reverse gear ratio. Electric vehicles typically use a single-speed or two-speed transmission. Fixed-ratio transmissions The simplest transmissions used a fixed ratio to provide either a gear reduction or increase in speed, sometimes in conjunction with a change in the orientation of the output shaft. Examples of such transmissions are used in helicopters, wind turbines and power take-offs (PTOs) for tractors. In the case of a wind turbine, the first stage of the gearbox is usually a planetary gear, to minimize the size while withstanding the high torque inputs from the turbine. Multi- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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