ZF Ecomat
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ZF Ecomat
The ZF Ecomat automotive transmission was specifically designed by ZF Friedrichshafen AG primarily for city-buses and motorcoaches. It has several generations – all of the automatic transmission type, and many variants. The latest variants use a lock-up torque converter along with a retarder. Some variants are listed below. Gear ratios Ecomat I (1980–1985) Gear ratios Ecomat I/II/IV (1985–2016) 1st generation — Ecomat (1980–2002) All generations of the Ecomat series are no longer in production. *4HP500 / 5HP500 / 6HP500 — four-, five- or six-speed; maximum input torque of 1100 Nm *4HP590 / 5HP590 / 6HP590 — four-, five- or six-speed; maximum input torque of 1250 Nm *4HP600 / 5HP600 / 6HP600 — four-, five- or six-speed; maximum input torque of 1400 Nm 2nd generation — Ecomat 2 (1997–2007) All generations of the Ecomat series are no longer in production. *4HP502/C / 5HP502/C / 6HP502/C — four-, five- or six-speed; maximum input torque of *4HP592/C / ...
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Automotive Industry
The automotive industry comprises a wide range of company, companies and organizations involved in the design, Business development, development, manufacturing, marketing, and selling of motor vehicles. It is one of the world's largest industry (economics), industries by revenue (from 16 % such as in France up to 40 % to countries like Slovakia). It is also the industry with the highest spending on research & development per firm. The word ''automotive'' comes from the Greek language, Greek ''autos'' (self), and Latin ''motivus'' (of motion), referring to any form of self-powered vehicle. This term, as proposed by Elmer Ambrose Sperry, Elmer Sperry (1860-1930), first came into use with reference to automobiles in 1898. History The automotive industry began in the 1860s with hundreds of manufacturers that pioneered the Brass Era car, horseless carriage. For many decades, the United States led the world in total automobile production. In 1929, before the Great Depression, ...
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Diesel Multiple Unit
A diesel multiple unit or DMU is a multiple-unit train powered by on-board diesel engines. A DMU requires no separate locomotive, as the engines are incorporated into one or more of the carriages. Diesel-powered single-unit railcars are also generally classed as DMUs. Diesel-powered units may be further classified by their transmission type: diesel–mechanical DMMU, diesel–hydraulic DHMU, or diesel–electric DEMU. Design The diesel engine may be located above the frame in an engine bay or under the floor. Driving controls can be at both ends, on one end, or in a separate car. Types by transmission DMUs are usually classified by the method of transmitting motive power to their wheels. Diesel–mechanical In a diesel–mechanical multiple unit (DMMU), the rotating energy of the engine is transmitted via a gearbox and driveshaft directly to the wheels of the train, like a car. The transmissions can be shifted manually by the driver, as in the great majority of first-gen ...
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List Of ZF Transmissions
This list of ZF transmissions details those automotive transmissions created by the German ZF Friedrichshafen AG engineering company. There are two fundamental types of motor vehicle transmission: *Manual – the driver has to perform each gear change (i.e., the driver is required to shift gears) * Automatic – once placed in drive (or any other 'automatic' selector position), it selects the gear ratio dependent on engine speed and load automatically. Furthermore, they may also be manufactured solely as a gearbox, and use an entirely separate final drive unit (including its differential) – or be supplied as a transaxle, which includes both the gearbox and final drive unit within one housing. Cars and light vehicles These may be used in motor cars (automobiles), or light commercial vehicles such as car-derived vans. Manual transmissions 4-speed longitudinal * S4-12 – Lotus Elite type 14 (optional), Autocars/Reliant Sabra sports * S4-18 – Bedford Van, Opel Blitz Van ...
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Denmark
) , song = ( en, "King Christian stood by the lofty mast") , song_type = National and royal anthem , image_map = EU-Denmark.svg , map_caption = , subdivision_type = Sovereign state , subdivision_name = Danish Realm, Kingdom of Denmark , established_title = History of Denmark#Middle ages, Consolidation , established_date = 8th century , established_title2 = Christianization , established_date2 = 965 , established_title3 = , established_date3 = 5 June 1849 , established_title4 = Faroese home rule , established_date4 = 24 March 1948 , established_title5 = European Economic Community, EEC 1973 enlargement of the European Communities, accession , established_date5 = 1 January 1973 , established_title6 = Greenlandic home rule , established_date6 = 1 May 1979 , official_languages = Danish language, Danish , languages_type = Regional languages , languages_sub = yes , languages = German language, GermanGerman is recognised as a protected minority language in t ...
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Czech Republic
The Czech Republic, or simply Czechia, is a landlocked country in Central Europe. Historically known as Bohemia, it is bordered by Austria to the south, Germany to the west, Poland to the northeast, and Slovakia to the southeast. The Czech Republic has a hilly landscape that covers an area of with a mostly temperate continental and oceanic climate. The capital and largest city is Prague; other major cities and urban areas include Brno, Ostrava, Plzeň and Liberec. The Duchy of Bohemia was founded in the late 9th century under Great Moravia. It was formally recognized as an Imperial State of the Holy Roman Empire in 1002 and became a kingdom in 1198. Following the Battle of Mohács in 1526, the whole Crown of Bohemia was gradually integrated into the Habsburg monarchy. The Protestant Bohemian Revolt led to the Thirty Years' War. After the Battle of White Mountain, the Habsburgs consolidated their rule. With the dissolution of the Holy Empire in 1806, the Cro ...
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Great Britain
Great Britain is an island in the North Atlantic Ocean off the northwest coast of continental Europe. With an area of , it is the largest of the British Isles, the largest European island and the ninth-largest island in the world. It is dominated by a maritime climate with narrow temperature differences between seasons. The 60% smaller island of Ireland is to the west—these islands, along with over 1,000 smaller surrounding islands and named substantial rocks, form the British Isles archipelago. Connected to mainland Europe until 9,000 years ago by a landbridge now known as Doggerland, Great Britain has been inhabited by modern humans for around 30,000 years. In 2011, it had a population of about , making it the world's third-most-populous island after Java in Indonesia and Honshu in Japan. The term "Great Britain" is often used to refer to England, Scotland and Wales, including their component adjoining islands. Great Britain and Northern Ireland now constitute the ...
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List Of Companies Operating Trains In The United Kingdom
There are many companies operating trains in the United Kingdom, including the operators of franchised passenger services, officially referred to as train operating companies (TOCs), as distinct from freight operating companies. Passenger operators in Great Britain There are also a number of light rail systems. Defunct operating companies Operating companies have ceased to exist for various reasons, including withdrawal of the franchise, the term of the franchise has expired, bankruptcy or merger. Passenger operators in Northern Ireland In Northern Ireland, passenger trains are NI/Ireland government-owned by Translink or the National Transport Authority. The following brands are used: *Northern Ireland Railways *Iarnród Éireann, who operates the Enterprise service from Dublin Connolly to Belfast Lanyon Place on the Belfast-Dublin line with Northern Ireland Railways and also 2 Northern Commuter services a day to/from Newry. UK Railtour operators *Compas ...
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British Rail Class 172
The British Rail Class 172 is a British diesel multiple unit (DMU) passenger train built by Bombardier Transportation's Derby Litchurch Lane Works for use on inner-suburban passenger services. The class is currently operated by West Midlands Railway. The Class 172 is part of the Turbostar range, similar to the Class 168, Class 170 and Class 171. Technical details and variants There are four sub-classes: * Class 172/0 - two-car, non-gangway train sets with West Midlands Railway for use on the Snow Hill Lines and Leamington Spa to Nuneaton, originally with London Overground. * Class 172/1 - two-car, non-gangway train sets with West Midlands Railway for use on the Snow Hill Lines and Leamington Spa to Nuneaton, originally with Chiltern Railways. * Class 172/2 - two-car, gangway train sets with West Midlands Railway for use on the Snow Hill Lines and Leamington Spa to Nuneaton. * Class 172/3 - three-car, gangway train sets with West Midlands Railway for use on the Sno ...
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Transmission (mechanics)
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 cha ...
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Torque
In physics and mechanics, torque is the rotational equivalent of linear force. It is also referred to as the moment of force (also abbreviated to moment). It represents the capability of a force to produce change in the rotational motion of the body. The concept originated with the studies by Archimedes of the usage of levers, which is reflected in his famous quote: "''Give me a lever and a place to stand and I will move the Earth''". Just as a linear force is a push or a pull, a torque can be thought of as a twist to an object around a specific axis. Torque is defined as the product of the magnitude of the perpendicular component of the force and the distance of the line of action of a force from the point around which it is being determined. The law of conservation of energy can also be used to understand torque. 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 . In ...
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Retarder (mechanical Engineering)
A retarder is a device used to augment or replace some of the functions of primary friction-based braking systems, usually on heavy vehicles. Retarders serve to slow vehicles, or maintain a steady speed while traveling down a hill, and help prevent the vehicle from "running away" by accelerating down the hill. They are not usually capable of bringing vehicles to a standstill, as their effectiveness diminishes as vehicle speed lowers. They are usually used as an additional "assistance" to slow vehicles, with the final braking done by a conventional friction braking system. As the friction brake will be used less, particularly at higher speeds, their service life is increased, and since in those vehicles the brakes are air-actuated helps to conserve air pressure too. Friction-based braking systems are susceptible to "brake fade" when used extensively for continuous periods, which can be dangerous if braking performance drops below what is required to stop the vehicle – for ins ...
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