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Napier Deltic
The Napier Deltic engine is a British opposed-piston valveless, supercharged uniflow scavenged, two-stroke diesel engine used in marine and locomotive applications, designed and produced by D. Napier & Son. Unusually, the cylinders were disposed in a three-bank triangle, with a crankshaft at each corner of the triangle. The term Deltic (meaning "in the form of the Greek letter (capital) delta") is used to refer to both the Deltic E.130 opposed-piston, high-speed diesel engine and the locomotives produced by English Electric using these engines, including its demonstrator locomotive named ''DELTIC'' and the production version for British Railways, which designated these as (TOPS) Class 55. A single, half-sized, turbocharged Deltic power unit also featured in the English Electric-built Type 2 locomotive, designated as the Class 23. Both locomotive and engine became better known as the "Baby Deltic". History and design The Deltic story began in 1943 when the British Admiral ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Napier Deltic Animation
Napier may refer to: People * Napier (surname), including a list of people with that name * Napier baronets, five baronetcies and lists of the title holders Given name * Napier Shaw (1854–1945), British meteorologist * Napier Waller (1893–1972), Australian muralist, mosaicist and painter Places Antarctica * Napier Island, in Marguerite Bay, on the Fallières Coast * Napier Mountains, in Enderby Land, East Antarctica * Napier Peak, in the South Shetland Islands, Western Antarctica * Napier Rock, in Admiralty Bay, King George Island, South Shetland Islands Australia * Mount Napier, a dormant volcano in Victoria * Napier Range, a mountain range in Western Australia * Napier County, New South Wales * Napier, New South Wales, a locality in the Riverina region * Electoral district of Napier, a former electoran district in South Australia Canada * Napier, Ontario, an unincorporated place in Middlesex County * Napier Bay, an Arctic waterway in Qikiqtaaluk Region, Nunavut Indi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British Rail Class 55
The British Rail Class 55, also known as a Deltic, or English Electric type 5, is a class of diesel locomotive built in 1961 and 1962 by English Electric for British Railways. They were designed for the high-speed express passenger services on the East Coast Main Line (ECML) between Edinburgh and . They gained the name "Deltic" from the prototype locomotive, DP1 ''Deltic'' (the running number DP1 was never carried), which in turn was named after its Napier Deltic power units. At the time of their introduction into service, the Class 55s were the most powerful single-unit diesel locomotives in the world, with a power output of . They had an official maximum speed of , however this was frequently exceeded, especially in their later years of service, with speeds of up to , being recorded on level gradients, and up to whilst descending Stoke Bank. Twenty-two locomotives were built, which were used for express passenger services on the ECML, particularly from London to and Edinburg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cylinder Head
In an internal combustion engine, the cylinder head (often abbreviated to simply "head") sits above the cylinders and forms the roof of the combustion chamber. In sidevalve engines, the head is a simple sheet of metal; whereas in more modern overhead valve and overhead camshaft engines, the cylinder head is a more complicated block often containing inlet and exhaust passages, coolant passages, valves, camshafts, spark plugs and fuel injectors. Most straight engines have a single cylinder head shared by all of the cylinders and most V engines have two cylinder heads (one per bank of cylinders). Design A summary of engine designs is shown below, in chronological order for automobile usage. Sidevalve engines In a flathead (''sidevalve'') engine, all of the valvetrain components are contained within the block, therefore the head is usually a simple sheet of metal bolted to the top of the engine block. Sidevalve engines were once universal in automobiles but are now lar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Junkers Jumo 204
The Jumo 204 was an opposed-piston, inline, liquid-cooled 6-cylinder aircraft Diesel engine produced by the German manufacturer Junkers. It entered service in 1932. Later engines in the series, the Jumo 205, Jumo 206, Jumo 207 and Jumo 208, differed in stroke, bore, and supercharging arrangements. Design and development Development of the Junkers diesel engines started in the 1920s with the Junkers Fo3 and Junkers Fo4/Junkers SL1. The Fo4 was re-designated Junkers 4, which in turn was re-designated Junkers Jumo 204 by the Reichsluftfahrtministerium (RLM), where the first number indicates the manufacturer; 2 – Junkers Motoren. These engines used a two-stroke cycle with six cylinders and twelve pistons, in an opposed piston configuration with two crankshafts, one at the bottom of the cylinder block and the other at the top, geared together. The pistons moved towards each other during the operating cycle. There were two cam-operated injection pumps per cylinder, each feeding two n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Napier Culverin
The Napier Culverin was a licensed built version of the Junkers Jumo 204 six-cylinder vertically opposed liquid-cooled diesel aircraft engine built by D. Napier & Son. The name is derived from the French word, culverin, for an early cannon or musket.Lumsden 2003, p.170. First flown in 1938, the engine went into limited production, with testing carried out on a Blackburn Iris V biplane flying-boat aircraft and Fairey IIIF biplane.Lumsden 2003, p.170. Design The six cylinders were arranged vertically. Two crankshafts were located at the top and bottom of the engine and coupled together by gears. The inlet and exhaust ports were controlled by the pistons, as in a petrol-fuelled two-stroke engine. Specifications (Culverin) See also Comparable engines * Junkers Jumo 205 Related lists * List of aircraft engines References Notes Bibliography * Lumsden, Alec. ''British Piston Engines and their Aircraft''. Marlborough, Wiltshire: Airlife Publishing, 2003. . External lin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Power-to-weight Ratio
Power-to-weight ratio (PWR, also called specific power, or power-to-mass ratio) is a calculation commonly applied to engines and mobile power sources to enable the comparison of one unit or design to another. Power-to-weight ratio is a measurement of actual performance of any engine or power source. It is also used as a measurement of performance of a vehicle as a whole, with the engine's power output being divided by the weight (or mass) of the vehicle, to give a metric that is independent of the vehicle's size. Power-to-weight is often quoted by manufacturers at the peak value, but the actual value may vary in use and variations will affect performance. The inverse of power-to-weight, weight-to-power ratio (power loading) is a calculation commonly applied to aircraft, cars, and vehicles in general, to enable the comparison of one vehicle's performance to another. Power-to-weight ratio is equal to thrust per unit mass multiplied by the velocity of any vehicle. Power-to-weight ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pegaso
Pegaso (, "Pegasus") was a Spanish manufacturer of trucks, buses, tractors, armored vehicles, and, for a while, to train apprentices, and have a good brand image, some sports cars. The parent company, Enasa, was created in 1946 and based in the old Hispano-Suiza factory, under the direction of the renowned automotive engineer Wifredo Ricart. In 1990, Iveco took over Enasa, and the Pegaso name became a secondary brand of Iveco. Enasa, a state-owned company, had its main business interest in the truck and bus market. Pegaso became one of the leading European industrial vehicle makers, with significant exports to both Europe and Latin America; the Benelux, Venezuela, and Cuba were its major foreign markets, and a substantial contract to supply tactical trucks to the Egyptian Army was signed in the late 1970s. The main Enasa factories were located in Barcelona, Madrid, and Valladolid. Between 1946 and 1990, Pegaso built more than 350,000 vehicles; the highest production in a singl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alfa-Romeo
Alfa Romeo Automobiles S.p.A. () is an Italian luxury car manufacturer and a subsidiary of Stellantis. The company was founded on 24 June 1910, in Milan, Italy. "Alfa" is an acronym of its founding name, "Anonima Lombarda Fabbrica Automobili." "Anonima" means "anonymous", which was a legal form of company at the time ( Società anonima). In the initial set-up phase, in order to have a building to produce cars, the company bought the Portello factory building of Darracq in Milan, which was closing up and selling all its assets. The brand is known for sport-oriented vehicles and has been involved in car racing since 1911. Alfa Romeo was owned by Fiat Chrysler Automobiles, the company that was responsible for the production of Alfa Romeo cars until its operations were fully merged with those of the PSA Group to form Stellantis on 16 January 2021. The first car produced by the company was the 1910 24 HP, designed by Giuseppe Merosi. A.L.F.A. ventured into motor racing, with drivers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wifredo Ricart
Wifredo Pelayo Ricart Medina (15 May 1897 – 19 August 1974) was a Spanish engineer, designer and executive manager in the automotive industry, who spent his professional career in Spain and Italy. The Barcelona "Happy Twenties" Born in Barcelona, Ricart graduated in 1918 as an industrial engineer. His first job was in a Hispano-Suiza dealer, but he soon moved to a new company, Motores Ricart-Perez, that successfully produced industrial engines. At that time, in the wake of Hispano-Suiza's automotive success, Barcelona swarmed with automotive initiatives. In this technically exciting environment, Ricart became increasingly interested in automobile engineering, and in 1922 designed his first car. It featured a 4-cylinder, 16-valve 1.5-liter engine which was advanced for its time. Two of these cars ran in the Barcelona Grand Prix for ''voiturettes'', one winning its second race, a few months later. In 1926, Ricart founded his own company, Motores y Automóviles Ricart, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
E-boat
E-boat was the Western Allies' designation for the fast attack craft (German: ''Schnellboot'', or ''S-Boot'', meaning "fast boat") of the Kriegsmarine during World War II; ''E-boat'' could refer to a patrol craft from an armed motorboat to a large ''Torpedoboot.'' The name of E-boats was a British designation using the letter ''E'' for ''Enemy'', The main wartime production boats, the ''S-100'' class, were very seaworthy, heavily armed and capable of sustaining , briefly accelerating to . These were armed with torpedoes and Flak guns; commonly one 37 mm at the stern, one 20 mm at the bow with a twin mount amidships, plus machine guns. Armament varied and some ''S-100''s substituted a 40mm Bofors or, less commonly, a 20mm ''flakvierling'' mount for the aft 37mm cannon. The ''S-100''-class boats were long and in beam. Their diesel engines provided a range of , substantially greater than the gasoline-fueled American PT boats and British motor torpedo boats (MTBs). ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petrol Engine
A petrol engine (gasoline engine in American English) is an internal combustion engine designed to run on petrol (gasoline). Petrol engines can often be adapted to also run on fuels such as liquefied petroleum gas and ethanol blends (such as ''E10'' and ''E85''). Most petrol engines use spark ignition, unlike diesel engines which typically use compression ignition. Another key difference to diesel engines is that petrol engines typically have a lower compression ratio. Design Thermodynamic cycle Most petrol engines use either the four-stroke Otto cycle or the two-stroke cycle. Petrol engines have also been produced using the Miller cycle and Atkinson cycle. Layout Most petrol-powered piston engines are straight engines or V engines. However, flat engines, W engines and other layouts are sometimes used. Wankel engines are classified by the number of rotors used. Compression ratio Cooling Petrol engines are either air-cooled or water-cooled. Ignition Petrol e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Navy
The Royal Navy (RN) is the United Kingdom's naval warfare force. Although warships were used by English and Scottish kings from the early medieval period, the first major maritime engagements were fought in the Hundred Years' War against France. The modern Royal Navy traces its origins to the early 16th century; the oldest of the UK's armed services, it is consequently known as the Senior Service. From the middle decades of the 17th century, and through the 18th century, the Royal Navy vied with the Dutch Navy and later with the French Navy for maritime supremacy. From the mid 18th century, it was the world's most powerful navy until the Second World War. The Royal Navy played a key part in establishing and defending the British Empire, and four Imperial fortress colonies and a string of imperial bases and coaling stations secured the Royal Navy's ability to assert naval superiority globally. Owing to this historical prominence, it is common, even among non-Britons, to ref ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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