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NW S
The NW type S is a series of large automobiles manufactured by Nesselsdorfer Wagenbau-Fabriks-Gesellschaft A.G. (NW, now known as Tatra), in Moravia, in what was then Austria-Hungary. Hans Ledwinka, who left the company in 1902, was hired back in 1905 (meanwhile he worked for company of Alexander Friedman in Vienna). Immediately he started working on a new car with modern and progressive design. Some of the new features included overhead valves, actuated by overhead camshaft (OHC), and hemispherical combustion chamber A hemispherical combustion chamber is a type of combustion chamber in a reciprocating internal combustion engine with a domed cylinder head notionally in the approximate shape of a hemisphere (in reality usually a spheric section thereof). An en .... The water-cooled engine was mounted at three points and the engine block had large service access doors. The engine with the gearbox formed one massive unit, so-called monoblock. The gearbox itself was of a bell sh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tatra (car)
Tatra is a Czech vehicle manufacturer from Kopřivnice. It is owned by the ''Tatra Trucks'' company, and it is the third oldest company in the world producing cars with an unbroken history. The company was founded in 1850 as ''Ignatz Schustala & Cie'', in 1890 renamed in German ''Nesselsdorfer Wagenbau-Fabriksgesellschaft'' when it became a wagon and carriage manufacturer. In 1897, Tatra produced the first motor car in central Europe, the Präsident automobile. In 1918, it changed its name to ''Kopřivnická vozovka a.s.'', and in 1919 it changed from the Nesselsdorfer marque to the ''Tatra'' badge, named after the nearby Tatra Mountains on the Czechoslovak-Polish border (now on the Polish- Slovak border). During World War II Tatra was instrumental in the production of trucks and tank engines for the German war effort. Production of passenger cars ceased in 1999, but the company still produces a range of primarily all-wheel-drive trucks, from 4×4 to 18×18. The brand is also ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kopřivnice
Kopřivnice (; german: Nesselsdorf) is a town in the Moravian-Silesian Region of the Czech Republic. It has about 21,000 inhabitants. It is an industrial town, known especially for the vehicle manufacturer Tatra. Administrative parts Villages of Lubina, Mniší and Vlčovice are administrative parts of Kopřivnice. Geography Kopřivnice lies in the Moravian-Silesian Foothills. In the south it extends to the Podbeskydí Nature Park. The highest point of the municipal territory is the hill Pískovna at above sea level. The town lies on the Kopřivnička Stream, a tributary of the Lubina River, which flows through the northern and eastern part of the territory. Větřkovice Reservoir is located in the territory. Completed in 1976, it serves as a water supply for the Tatra Trucks company and the industrial zone, as a recreational area, and for fish farming. History The Šoštýn Castle was founded in around 1280–1290 and was first documented in 1347. The settlement was probably ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moravia
Moravia ( , also , ; cs, Morava ; german: link=yes, Mähren ; pl, Morawy ; szl, Morawa; la, Moravia) is a historical region in the east of the Czech Republic and one of three historical Czech lands, with Bohemia and Czech Silesia. The medieval and early modern Margraviate of Moravia was a crown land of the Lands of the Bohemian Crown from 1348 to 1918, an imperial state of the Holy Roman Empire from 1004 to 1806, a crown land of the Austrian Empire from 1804 to 1867, and a part of Austria-Hungary from 1867 to 1918. Moravia was one of the five lands of Czechoslovakia founded in 1918. In 1928 it was merged with Czech Silesia, and then dissolved in 1949 during the abolition of the land system following the communist coup d'état. Its area of 22,623.41 km2 is home to more than 3 million people. The people are historically named Moravians, a subgroup of Czechs, the other group being called Bohemians. Moravia also had been home of a large German-speaking populati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tatra 20
Nesselsdorf (NW) type T was a luxury car. As the company changed its name the model was renamed to Tatra 20 in 1919. It was successor to the highly successful model NW type S. It was made at the same time as NW type U until 1925, when both of the models were replaced by Tatra 17. It is currently a vintage model, with only three examples known to exist. BMW owns one, while another is owned by a U.S. car collector. Design Engine The engine NW T was a four stroke OHC water cooled inline four A straight-four engine (also called an inline-four) is a four-cylinder piston engine where cylinders are arranged in a line along a common crankshaft. The vast majority of automotive four-cylinder engines use a straight-four layout (with the e .... It had a capacity of 3563 cc, which gave an output of . The first T20s had to be started manually while later T20s had Bosch electric starters. The same engine was also used in NW TL-2 and NW TL-4 trucks. Chassis The car had solid front ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Front-engine, Rear-wheel-drive Layout
In automotive design, a FR, or front-engine, rear-wheel-drive layout is one where the engine is located at the front of the vehicle and driven wheels are located at the rear via a drive shaft. This was the traditional automobile layout for most of the 20th century. Modern designs commonly use the front-engine, front-wheel-drive layout (FF). It is also used in high-floor buses and school buses. Front mid-engine, rear-wheel-drive layout In automotive design, a front mid-engine, rear-wheel-drive layout (FMR) is one that places the engine in the front, with the rear wheels of vehicle being driven. In contrast to the front-engine, rear-wheel-drive layout (FR), the engine is pushed back far enough that its center of mass is to the rear of the front axle. This aids in weight distribution and reduces the moment of inertia, improving the vehicle's handling. The mechanical layout of an FMR is substantially the same as an FR car. Some models of the same vehicle can be classified as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Straight-four Engine
A straight-four engine (also called an inline-four) is a four-cylinder piston engine where cylinders are arranged in a line along a common crankshaft. The vast majority of automotive four-cylinder engines use a straight-four layout (with the exceptions of the flat-four engines produced by Subaru and Porsche) and the layout is also very common in motorcycles and other machinery. Therefore the term "four-cylinder engine" is usually synonymous with straight-four engines. When a straight-four engine is installed at an inclined angle (instead of with the cylinders oriented vertically), it is sometimes called a slant-four. Between 2005 and 2008, the proportion of new vehicles sold in the United States with four-cylinder engines rose from 30% to 47%. By the 2020 model year, the share for light-duty vehicles had risen to 59%. Design A four-stroke straight-four engine always has a cylinder on its power stroke, unlike engines with fewer cylinders where there is no power stroke occu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Straight-six Engine
The straight-six engine (also referred to as an inline-six engine; abbreviated I6 or L6) is a piston engine with six cylinders arranged in a straight line along the crankshaft. A straight-six engine has perfect primary and secondary engine balance, resulting in fewer vibrations than other designs of six or less cylinders. Until the mid-20th century, the straight-six layout was the most common design for engines with six cylinders. However, V6 engines became more common from the 1960s and by the 2000s most straight-six engines had been replaced by V6 engines. An exception to this trend is BMW which has produced automotive straight-six engines from 1933 to the present day. Characteristics In terms of packaging, straight-six engines are almost always narrower than a V6 engine or V8 engine, but longer than straight-four engines, V6s, and most V8s. Straight-six engines are typically produced in displacements ranging from , however engines ranging in size from the Benelli 750 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hans Ledwinka
Hans Ledwinka (14 February 1878 – 2 March 1967) was an Austrian automobile designer. Youth Ledwinka was born in Klosterneuburg (Lower Austria), near Vienna, then part of the Austro-Hungarian Empire. He started his career as a mechanic, and later studied in Vienna. As a young man he worked for Nesselsdorfer-Wagenbau in Nesselsdorf, the company that later became Tatra in Moravia. He was first employed in the construction of railroad cars, and later involved in the production of the first cars made by this firm. He designed the 5.3-litre, six-cylinder Type U motor car. In the midst of World War I in May 1916 he accepted directorship at Steyr, initially working at home and moving there permanently in 1917. Chief designer at Tatra Ledwinka returned to Tatra company (originally Nesselsdorfer-Wagenbau) in Kopřivnice (Nesselsdorf), then in Czechoslovakia, and between 1921 and 1937 he was their chief design engineer. He invented the frameless central tubular chassis (so-calle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Austria-Hungary
Austria-Hungary, often referred to as the Austro-Hungarian Empire,, the Dual Monarchy, or Austria, was a constitutional monarchy and great power in Central Europe between 1867 and 1918. It was formed with the Austro-Hungarian Compromise of 1867 in the aftermath of the Austro-Prussian War and was dissolved shortly after its defeat in the First World War. Austria-Hungary was ruled by the House of Habsburg and constituted the last phase in the constitutional evolution of the Habsburg monarchy. It was a multinational state and one of Europe's major powers at the time. Austria-Hungary was geographically the second-largest country in Europe after the Russian Empire, at and the third-most populous (after Russia and the German Empire). The Empire built up the fourth-largest machine building industry in the world, after the United States, Germany and the United Kingdom. Austria-Hungary also became the world's third-largest manufacturer and exporter of electric home appliances, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Overhead Valve
An overhead valve (OHV) engine, sometimes called a ''pushrod engine'', is a piston engine whose valves are located in the cylinder head above the combustion chamber. This contrasts with earlier flathead engines, where the valves were located below the combustion chamber in the engine block. Although an overhead camshaft (OHC) engine also has overhead valves, the common usage of the term "overhead valve engine" is limited to engines where the camshaft is located in the engine block. In these traditional OHV engines, the motion of the camshaft is transferred using pushrods (hence the term "pushrod engine") and rocker arms to operate the valves at the top of the engine. Some early intake-over-exhaust engines used a hybrid design combining elements of both side-valves and overhead valves. History Predecessors The first internal combustion engines were based on steam engines and therefore used slide valves. This was the case for the first Otto engine, which was first succ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Overhead Camshaft
An overhead camshaft (OHC) engine is a piston engine where 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 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; however an OHV ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hemi Engine
A hemispherical combustion chamber is a type of combustion chamber in a reciprocating internal combustion engine with a domed cylinder head notionally in the approximate shape of a hemisphere (in reality usually a spheric section thereof). An engine featuring this type of hemispherical chamber is known as a hemi engine. History Hemispherical combustion chambers were introduced on some of the earliest automotive engines, shortly after the viability of the internal combustion engine was first demonstrated. Their name reflects the domed cylinder head and the top of the piston enclosing a space that approximates a half of a sphere ('' hemi-'' + '' -sphere'' + '' -ical''), although in practice the actual enclosed space is generally less than half. Hemispherical cylinder heads have been used since at least 1901; they were used by the Belgian car maker Pipe in 1905 and by the 1907 Fiat 130 HP Grand Prix racer. The Peugeot Grand Prix car of 1912 and the Alfa Romeo Grand Prix car of 191 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
