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Oil-cooled
Oil cooling is the use of engine oil as a coolant, typically to remove surplus heat from an internal combustion engine. The hot engine transfers heat to the oil which then usually passes through a heat-exchanger, typically a type of radiator known as an oil cooler. The cooled oil flows back into the hot object to cool it continuously. Usage Oil cooling is commonly used to cool high-performance motorcycle engines that are not liquid-cooled. Typically, the cylinder barrel remains air-cooled in the traditional motorcycle fashion, but the cylinder head benefits from additional cooling. As there is already an oil circulation system available for lubrication, this oil is also piped to the cylinder head and used as a liquid coolant. Compared to an oil system used solely for lubrication, oil cooling requires additional oil capacity, a greater flow rate through the oil pump, and an oil cooler (or a larger cooler than normal). If air-cooling proves sufficient for much of the running tim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Suzuki GSX-R750
The Suzuki GSX-R750 is a sports motorcycle made by Suzuki since 1984. It was introduced at the Intermot, Cologne Motorcycle Show in October 1984 as a motorcycle of the Suzuki GSX-R Series, GSX-R series for the 1985 model year. Air and oil cooled The air and oil-cooled models can be divided into the first-generation and the second-generation colloquially referred to as 'slabbies' and 'slingshots' respectively. The 1985-1987 models featured very flat bodies compared to modern sport-bikes, hence the term 'slab-sided'. 1988-1991 (1992 USA) models are sometimes referred to as slingshots because the carburetors introduced in 1988 were marketed as slingshot carburetors (slingshot describes the cross-section of the semi-flat slide carbs). GSX-R750 (F) 1985 (The Classic) The original model featured a lightweight aluminum alloy frame, flat slide Mikuni VM29SS carburettors, twin discs with 4-pot calipers, and tyres both front and rear. To save weight, the designers specified an air-and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HKS 700E
The HKS 700E is a twin-cylinder, horizontally opposed, four stroke, carburetted aircraft engine, designed for use on ultralight aircraft, powered parachutes and ultralight trikes. The engine is manufactured by HKS, a Japanese company noted for its automotive racing engines.Cliche, Andre: ''Ultralight Aircraft Shopper's Guide'' 8th Edition, page G-9 Cybair Limited Publishing, 2001. Development The HKS 700E has dual capacitor discharge ignition, dual carburetors and electric start. The engine is mainly air-cooled, but with oil-cooled cylinder heads. The OHV pushrod engine has four valves per cylinder, and nickel-ceramic coated cylinder bores. Lubrication is dry sump, with a trochoid pump. The reduction drive is a choice of two integral gearboxes: the A-type gearbox has a 2.58:1 ratio and can accommodate propellers of up to 4,000 kg/cm2 inertial load; the B-type gearbox has a 3.47:1 ratio and can accommodate propellers of up to 6,000 kg/cm2. The 700E burns per ho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Motorcycle Engine
A motorcycle engine is an engine that powers a motorcycle. Motorcycle engines are typically two-stroke or four-stroke internal combustion engines, but other engine types, such as Wankel engine, Wankels and electric motors, have been used. Although some mopeds, such as the VéloSoleX, had friction drive to the front tire, a motorcycle engine normally drives the rear wheel, power being sent to the driven wheel by belt, chain or shaft. Historically, some 2,000 units of the Megola were produced between 1921 and 1925 with front wheel drive, and the modern Rokon (motorcycle manufacturer), Rokon, an All-terrain vehicle, all terrain motorcycle with both wheels driven, has been produced since 1960. Most engines have a gearbox with up to six or even 7 ratios. Reverse gear is occasionally found on heavy Touring motorcycle, tourers, for example the Honda Gold Wing, Honda GL1600, and sidecar motorcycles, such as the IMZ-Ural, Ural. The rider changes gears on most motorcycles using a foot-ped ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Enfield Interceptor 650
The Royal Enfield Interceptor 650 is a parallel twin retro-styled motorcycle introduced by Royal Enfield in 2018. It is the first modern twin cylinder motorcycle developed by the company. The bike was revealed in 2017, design inspired by the 1960s Interceptor which had a 750cc engine. The Interceptor 650 was unveiled alongside the Continental GT 650, which shares the same engine. The Interceptor is a retro-cruiser with relaxed ergonomics, while the Continental GT is a café-racer. Both models are sold in India, Australasia, Europe and the United States and South America. The bike is expected to become the biggest selling large-capacity twin in the world,Bike (magazine), Bike magazine report pp. 32-39 - December 2018 and in 2020 the Interceptor 650 was the UK's best-selling big bike. Design The bike was designed at Royal Enfield's Technology Centre at Bruntingthorpe Aerodrome, Bruntingthorpe Proving Ground in Leicestershire, England. Both models, Interceptor and Continental GT, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of BMW Motorcycles
BMW's motorcycle history began in 1921 when the company commenced manufacturing engines for other companies. BMW's own motorcycles—sold under the BMW Motorrad brand—began in 1923 with the BMW R 32, which was powered by a flat-twin engine (also called a "boxer-twin" engine). Production of motorcycles with flat-twin engines continues to this day, however BMW has also produced many models with other types of engines. Motorcycle history 1921–1938 At the end of World War I, the Treaty of Versailles demanded that BMW cease production of aircraft engines. To remain in business, the company began producing small industrial engines (along with farm equipment, household items and railway brakes). In 1920, BMW M2B15 flat-twin petrol engine was released. Despite being designed as a portable industrial engine, the M2B15 was also used by several motorcycle manufacturers, including for the 1920–1923 Victoria KR1 and the 1920–1922 Bayerische Flugzeugwerke (BFw) ''Helios'' motorcyc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Engine Oil
Motor oil, engine oil, or engine lubricant is any one of various substances used for the lubrication of internal combustion engines. They typically consist of base oils enhanced with various additives, particularly antiwear additives, detergents, dispersants, and, for multi-grade oils, viscosity index improvers. The main function of motor oil is to reduce friction and wear on moving parts and to clean the engine from sludge (one of the functions of dispersants) and varnish (detergents). It also neutralizes acids that originate from fuel and from oxidation of the lubricant (detergents), improves the sealing of piston rings, and cools the engine by carrying heat away from moving parts. In addition to the aforementioned basic constituents, almost all lubricating oils contain corrosion and oxidation inhibitors. Motor oil may be composed of only a lubricant base stock in the case of non-detergent oil, or a lubricant base stock plus additives to improve the oil's detergency, extr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Specific Heat
In thermodynamics, the specific heat capacity (symbol ) of a substance is the amount of heat that must be added to one unit of mass of the substance in order to cause an increase of one unit in temperature. It is also referred to as massic heat capacity or as the specific heat. More formally it is the heat capacity of a sample of the substance divided by the mass of the sample. The International System of Units, SI unit of specific heat capacity is joule per kelvin per kilogram, J⋅kg−1⋅K−1. For example, the heat required to raise the temperature of of water by is , so the specific heat capacity of water is . Specific heat capacity often varies with temperature, and is different for each state of matter. Liquid water has one of the highest specific heat capacities among common substances, about at 20 °C; but that of ice, just below 0 °C, is only . The specific heat capacities of iron, granite, and hydrogen gas are about 449 J⋅kg−1⋅K−1, 790 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air Cooling
Air cooling is a method of dissipating heat. It works by expanding the surface area or increasing the flow of air over the object to be cooled, or both. An example of the former is to add cooling fins to the surface of the object, either by making them integral or by attaching them tightly to the object's surface (to ensure efficient heat transfer). In the case of the latter, it is done by using a fan blowing air into or onto the object one wants to cool. The addition of fins to a heat sink increases its total surface area, resulting in greater cooling effectiveness. There are two types of cooling pads that can be used for air cooling: one is the honeycomb design and another one is excelsior. In all cases, the air has to be cooler than the object or surface from which it is expected to remove heat. This is due to the second law of thermodynamics, which states that heat will only move spontaneously from a hot reservoir (the heat sink) to a cold reservoir (the air). Derating at ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Citroën 2CV
The Citroën 2CV (, , lit. "two horses", meaning "two Tax horsepower#France, ''taxable'' horsepower") is an economy car produced by the French company Citroën from 1948 to 1990. Introduced at the 1948 Paris Paris Auto Show, Salon de l'Automobile, it has an air-cooled engine that is front-engine, mounted in the front and front-wheel drive, drives the front wheels. Conceived by Citroën Vice-President Pierre-Jules Boulanger, Pierre Boulanger to help motorise the large number of farmers still using horses and carts in 1930s France, the 2CV has a combination of innovative engineering and straightforward, utilitarian bodywork. The 2CV featured overall low cost of ownership, simplicity of maintenance, an easily serviced air-cooled engine (originally offering ), and minimal fuel consumption. In addition, it had been designed to cross a freshly ploughed field with a basket full of eggs on the passenger's seat without breaking them, because of the great lack of paved roads in France at ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ecotec
Ecotec (capitalized ECOTEC, from "Emissions Control Optimization TEChnology") is a General Motors (GM) and Opel Automobile GmbH (Opel) trademark that refers to a series of emissions technologies that were implemented throughout a range of GM engines. ECOTEC can refer to the following diesel and petrol engines originally produced by General Motors: * Ecotec Family 0 engine, Family 0 – straight-four DOHC engines produced by Opel, Adam Opel AG and GM Powertrain US. * Ecotec Family 1 engine#Ecotec, Family 1 – straight-four SOHC/DOHC engines produced by Opel, Adam Opel AG, GM Korea, and GM do Brasil. * Ecotec Family II engine#Ecotec, Family II – straight-four SOHC/DOHC engines produced by Opel, Adam Opel AG, Holden, and GM do Brasil. * Ecotec GM Ecotec engine, L850 – straight-four all-aluminium DOHC engines produced by Opel, Adam Opel AG, GM Powertrain US, and Saab Automobile, Saab Automobile Powertrain AB. *Ecotec V6 – a version of the Buick V6 engine#Series II, Series II 3800 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pulsar F250/ N250
A pulsar (''pulsating star, on the model of quasar'') is a highly magnetized rotating neutron star that emits beams of electromagnetic radiation out of its magnetic poles. This radiation can be observed only when a beam of emission is pointing toward Earth (similar to the way a lighthouse can be seen only when the light is pointed in the direction of an observer), and is responsible for the pulsed appearance of emission. Neutron stars are very dense and have short, regular rotational periods. This produces a very precise interval between pulses that ranges from milliseconds to seconds for an individual pulsar. Pulsars are one of the candidates for the source of ultra-high-energy cosmic rays (see also centrifugal mechanism of acceleration). Pulsars’ highly regular pulses make them very useful tools for astronomers. For example, observations of a pulsar in a binary neutron star system were used to indirectly confirm the existence of gravitational radiation. The first extraso ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yamaha FZ25
The Yamaha FZ16 (called Yamaha Byson in Indonesia) is a Types of motorcycles#Standard, standard motorcycle made by Yamaha Motor Company, Yamaha since 2008. The FZ16 is modeled after the Yamaha FZ1, FZ1. The FZ16 is primarily sold in India, and other markets such as Indonesia, Colombia, Argentina and Malaysia. In 2014, the Fuel injection, fuel-injected version, called ''FZ FI'', went on sale in India. Its engine displacement was reduced to from , resulting in less power and torque from the carburetted version, but lower fuel consumption. In 2015, the Indonesian ''Byson FI'' went on sale. According to Yamaha, the bike has 91 different components from the version that sold in India. Yamaha FZ25 (FZ250) In 2017, Yamaha launched the FZ25, a ''250 cc'' derivative of the FZ series. It also has an air-cooled, 2-valve, fuel-injected engine. Yamaha said the FZ25 is aimed at existing Yamaha owners. ''MotorBeam'' tested the FZ25 and found it to offer "smooth performance" with "excel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
