|
Subaru CB Engine
The Subaru CB engine is a gasoline boxer-4 engine used in Subaru automobiles. It is the fourth generation of Subaru boxer engines, following the first ( EA, 1966–94), second ( EJ, 1989–2021), and third ( FB/ FA, 2010/2012–present) generations. Overview The CB engine was first introduced in August 2020 with the second-generation Levorg. According to Subaru, CB stands for Concentration/Compact Boxer. It is the fourth-generation boxer engine family from Subaru. Compared to the preceding FB series, the CB is shorter; the bore pitch (centerline to centerline spacing between adjacent cylinders) has decreased from and the overall crank length has decreased from . For the first time in a Subaru engine, the centerlines of the cylinder bores do not intersect with the crankshaft axis; instead, there is a crank offset of . This offset reduces friction during the piston downstroke. Overall thermal efficiency is 40% due to the adoption of lean-burn combustion with an excess air ratio ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subaru
( or ; ) is the automaker, automobile manufacturing division of Japanese transportation conglomerate (company), conglomerate Subaru Corporation (formerly known as Fuji Heavy Industries), the Automotive industry#By manufacturer, twenty-first largest automaker by production worldwide in 2017. Subaru cars are known for their use of a flat engine, boxer engine layout in most vehicles above 1,500 cc. The Symmetrical All Wheel Drive drive-train layout was introduced in 1972. Both became standard equipment for mid-size and smaller cars in most markets by 1996. The lone exception is the Subaru BRZ, BRZ, introduced in 2012 via a partnership with Toyota, which pairs the boxer engine with rear-wheel-drive. Subaru also offers turbocharged versions of their passenger cars, such as the Subaru WRX, WRX, Subaru Legacy, Legacy and Subaru Outback, Outback XT, Subaru Ascent, Ascent, and formerly the Subaru Legacy, Legacy GT and Subaru Forester, Forester XT. In Western markets, Subaru vehi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air–fuel Ratio
Air–fuel ratio (AFR) is the mass ratio of air to a solid, liquid, or gaseous fuel present in a combustion process. The combustion may take place in a controlled manner such as in an internal combustion engine or industrial furnace, or may result in an explosion (e.g., a dust explosion, gas or vapor explosion or in a thermobaric weapon). The air–fuel ratio determines whether a mixture is combustible at all, how much energy is being released, and how much-unwanted pollutants are produced in the reaction. Typically a range of fuel to air ratios exists, outside of which ignition will not occur. These are known as the lower and upper explosive limits. In an internal combustion engine or industrial furnace, the air–fuel ratio is an important measure for anti-pollution and performance-tuning reasons. If exactly enough air is provided to completely burn all of the fuel, the ratio is known as the stoichiometric mixture, often abbreviated to stoich. Ratios lower than stoichiometri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boxer Engines
Boxer most commonly refers to: * Boxer (boxing), a competitor in the sport of boxing *Boxer (dog), a breed of dog Boxer or boxers may also refer to: Animal kingdom * Boxer crab *Boxer shrimp, a small group of decapod crustaceans *Boxer snipe eel, ''Nemichthys curvirostris'' Film and television *Boxer TV Access, a Swedish digital TV provider * ''Boxer'' (1984 film), a 1984 Hindi-language film * ''Boxer'' (2015 film), a 2015 Kannada-language film * ''Boxer'' (2018 film) a 2018 Bengali-language film * ''The Boxer'' (1997 film), a 1997 film starring Daniel Day-Lewis * ''The Boxer'' (1958 film), a 1958 Mexican sports drama film * ''The Boxer'' (2012 film), a 2012 short film starring Paul Barber *''The Boxer'', aka ''Ripped Off'', a 1972 Italian film starring Robert Blake and Ernest Borgnine * ''The Boxers'', a Hong Kong film of 1973 Military *Boxer (armoured fighting vehicle), a European, multi-role, armoured vehicle * Boxer Rebellion, a 1900 armed conflict in China ** Boxer movemen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subaru Engines
( or ; ) is the automobile manufacturing division of Japanese transportation conglomerate Subaru Corporation (formerly known as Fuji Heavy Industries), the twenty-first largest automaker by production worldwide in 2017. Subaru cars are known for their use of a boxer engine layout in most vehicles above 1,500 cc. The Symmetrical All Wheel Drive drive-train layout was introduced in 1972. Both became standard equipment for mid-size and smaller cars in most markets by 1996. The lone exception is the BRZ, introduced in 2012 via a partnership with Toyota, which pairs the boxer engine with rear-wheel-drive. Subaru also offers turbocharged versions of their passenger cars, such as the WRX, Legacy and Outback XT, Ascent, and formerly the Legacy GT and Forester XT. In Western markets, Subaru vehicles have traditionally attracted a small but devoted core of buyers. The company's marketing targets those who desire its signature engine and drive train, all-wheel drive and rou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subaru Legacy (seventh Generation)
The Subaru Legacy (BW) is the seventh generation of the Legacy range of mid-size cars, with the station wagon version the Subaru Outback (BT) being the sixth generation of the Legacy-based Outback range. It made its debut at the 2019 Chicago Auto Show on February 7, 2019, and went on sale in the third quarter of 2019. Unlike the previous generations, the seventh generation Legacy will not be sold in Japan and Australia due to disappointing sales for its predecessor. History Series production of the seventh generation Legacy and sixth generation Outback started in July 2019. The first of each model was driven off the SIA production line in Lafayette, Indiana, on July 29. The seventh generation Legacy is not marketed in Japan. Orders for the sixth generation Legacy were accepted through June 22, 2020, and production was discontinued after that date. Design The 2020 model year Legacy was moved to the Subaru Global Platform (SGP), which is torsionally stiffer compared to the previous ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Double 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 en ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subaru Forester
The is a compact crossover SUV that has been manufactured by Subaru since 1997. The first generation was built on the platform of the Impreza in the style of a taller station wagon, a style that continued to the second generation, while the third-generation model onwards moved towards a crossover SUV design. A performance model was available for the second-generation Forester in Japan as the Forester STi. First generation (SF; 1997) The Forester was introduced at the Tokyo Motor Show in November 1995 as the Streega concept, and available for sale in February 1997 in Japan, and to the US market in 1997 for MY1998. The Forester was one of the first crossover SUVs; the idea was inspired by Volkswagen (VW). It was built in the style of a station wagon, but had a taller stance, higher h-point seating, and an all-wheel drive drivetrain. Subaru advertising employed the slogan "SUV tough, Car Easy". It used the Impreza platform but with the larger 2.5-liter DOHC EJ25D four-cylinde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fuel Economy In Automobiles
The fuel economy of an automobile relates distance traveled by a vehicle and the amount of fuel consumed. Consumption can be expressed in terms of volume of fuel to travel a distance, or the distance traveled per unit volume of fuel consumed. Since fuel consumption of vehicles is a significant factor in air pollution, and since importation of motor fuel can be a large part of a nation's foreign trade, many countries impose requirements for fuel economy. Different methods are used to approximate the actual performance of the vehicle. The energy in fuel is required to overcome various losses (wind resistance, tire drag, and others) encountered while propelling the vehicle, and in providing power to vehicle systems such as ignition or air conditioning. Various strategies can be employed to reduce losses at each of the conversions between the chemical energy in the fuel and the kinetic energy of the vehicle. Driver behavior can affect fuel economy; maneuvers such as sudden accelerat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gasoline Direct Injection
Gasoline direct injection (GDI), also known as petrol direct injection (PDI), is a mixture formation system for internal combustion engines that run on gasoline (petrol), where fuel is injected into the combustion chamber. This is distinct from manifold fuel injection systems, which inject fuel into the intake manifold. The use of GDI can help increase engine efficiency and specific power output as well as reduce exhaust emissions. The first GDI engine to reach production was introduced in 1925 for a low-compression truck engine. Several German cars used a Bosch mechanical GDI system in the 1950s, however usage of the technology remained rare until an electronic GDI system was introduced in 1996 by Mitsubishi for mass-produced cars. GDI has seen rapid adoption by the automotive industry in recent years, increasing in the United States from 2.3% of production for model year 2008 vehicles to approximately 50% for model year 2016. Operating principle Charge modes The 'charg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Active Valve Control System
The active valve control system (AVCS) is an automobile variable valve timing technology used by Subaru. It varies the timing of the valves by using hydraulic oil pressure to rotate the camshaft, known as "phasing", in order to provide optimal valve timing for engine load conditions. The system is closed loop using the camshaft sensors, crankshaft sensors, air flow meter, throttle position as well as oxygen sensors and/or Air-Fuel ratio sensors in order to calculate engine load. The ECU is programmed to operate control valves that adjust the delivery of the hydraulic pressure in order to move the camshaft into the position that will provide the engine with the best performance while meeting emissions standards. AVCS is used on the Version 7 and up EJ207 engines, the EJ204, EJ254, EJ255, EJ257, the second generation EZ30D (2005+ in the USA market) found in the Legacy Outback, Legacy 2.0R, 3.0R and the B9 Tribeca. A dual AVCS system phases both the intake and exhaust camshafts on t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hearst Corporation
Hearst Communications, Inc., often referred to simply as Hearst, is an American multinational mass media and business information conglomerate based in Hearst Tower in Midtown Manhattan, New York City. Hearst owns newspapers, magazines, television channels, and television stations, including the ''San Francisco Chronicle'', the ''Houston Chronicle'', ''Cosmopolitan'' and ''Esquire''. It owns 50% of the A&E Networks cable network group and 20% of the sports cable network group ESPN, both in partnership with The Walt Disney Company. The conglomerate also owns several business-information companies, including Fitch Ratings and First Databank. The company was founded by William Randolph Hearst as an owner of newspapers, and the Hearst family remains involved in its ownership and management. History The formative years In 1880, George Hearst, mining entrepreneur and U.S. senator, bought the '' San Francisco Daily Examiner.'' In 1887, he turned the ''Examiner'' over to his son, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
_XS_wagon_(2011-11-30).jpg "Click for more on -> Subaru Forester")
