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BMW S68
The BMW S68 is a twin-turbocharged V8 engine produced by BMW. It will be used for the first time in the 2022 revised BMW X7 as the M60i. A few weeks after its presentation, BMW showed a study of the XM with a more powerful version of the engine. In addition, the basic version is also used in the BMW 760i for the US market. Design The S68 has a stroke of and the same displacement as its predecessor, but the compression ratio of 10.5:1 corresponds to the higher compressed predecessor variants. It has one turbocharger per cylinder bank and both chargers are placed in the middle of the cylinder banks in a hot-vee design taken from the previous S63 variant; there is only one exhaust manifold. The engine oil is cooled by an external cooler, and a newly developed oil pump is used for the oil circuit. The engine is now only offered as a 48-volt mild hybrid powerplant mild hybrid system, it has a electric motor with a torque of ; unlike the previous mild hybrid systems from BMW, this is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
V8 Engine
A V8 engine is an eight-cylinder piston engine in which two banks of four cylinders share a common crankshaft and are arranged in a V configuration. The first V8 engine was produced by the French Antoinette company in 1904, developed and used in cars and speedboats but primarily aircraft; while the American 1914–1935 ''Cadillac L-Head'' engine is considered the first road going V8 engine to be mass produced in significant quantities. The popularity of V8 engines in cars was greatly increased following the 1932 introduction of the ''Ford Flathead V8''. In the early 21st century, use of V8 engines in passenger vehicles declined as automobile manufacturers opted for more fuel efficient, lower capacity engines, or hybrid and electric drivetrains. Design V-angle The majority of V8 engines use a V-angle (the angle between the two banks of cylinders) of 90 degrees. This angle results in good engine balance, which results in low vibrations; however, the downside is a larg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DOHC
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] |
Variable Valve Timing
In internal combustion engines, variable valve timing (VVT) is the process of altering the timing of a valve lift event, and is often used to improve performance, fuel economy or emissions. It is increasingly being used in combination with variable valve lift systems. There are many ways in which this can be achieved, ranging from mechanical devices to electro-hydraulic and camless systems. Increasingly strict emissions regulations are causing many automotive manufacturers to use VVT systems. Two-stroke engines use a power valve system to get similar results to VVT. Background theory The valves within an internal combustion engine are used to control the flow of the intake and exhaust gases into and out of the combustion chamber. The timing, duration and lift of these valve events has a significant impact on engine performance. Without variable valve timing or variable valve lift, the valve timing is the same for all engine speeds and conditions, therefore compromises are neces ... [...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] |
BMW S63
The BMW N63 is a twin-turbocharged V8 petrol engine which has been in production from 2008 to present. The N63 is the world's first production car engine to use a "hot-vee" layout, with the turbochargers located inside the "V" of the engine. It is also BMW's first turbocharged V8 engine. The N63 replaced the BMW N62 (a naturally aspirated V8 engine) and was first used in the 2008 X6 xDrive50i. The S63 engine is the BMW M high-performance version of the N63. Alpina versions of the N63 are used in various F01 7 Series, F10 5 Series, G11 7 Series, G16 8 Series and G30 5 Series models. Design The airflow path through the engine uses a "hot-vee" layout, where the exhaust manifolds and turbochargers are located between the cylinder banks (on the "inside" of the V8) and the intake manifolds are located on the outside of the engine. This is opposite to the traditional layout for a V8, where the intake is inside the "V" and the exhaust manifold is on the outside. The hot-vee layo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BMW X7
The BMW X7 is a full-sized luxury SUV, luxury sport utility vehicle manufactured by BMW. It is BMW's largest and most expensive SUV in its line-up. The X7 was first announced by BMW in March 2014. It was officially unveiled on October 17, 2018, with pre-orders being taken online. The X7 has been available at dealers since March 2019. __TOC__ Launch and development BMW provided a preview of the upcoming X7 with the showing of the Concept X7 iPerformance at the 2017 International Motor Show Germany, International Motor Show in Frankfurt. Production of the X7 started in 2018 at the BMW US Manufacturing Company plant in Greer, South Carolina. The X7 is built on the same BMW CLAR platform as the BMW X5 (G05), G05 X5, however the X7 is taller and wider plus it has been stretched for increased cargo space and third row seating which is standard and more spacious for adults (the X5's third row seating, which is optional, is mainly for children). In contrast to the X5, it is not availab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BMW XM
The BMW XM is a plug-in hybrid-electric full-size luxury crossover SUV manufactured by BMW under the BMW M subsidiary. It is the second car developed entirely by BMW M after the BMW M1 in 1978. A more powerful version, the Label Red, was also announced alongside the unveiling of the XM on the 27th of September. Launch and development BMW was Art Basel's official partner for event's 2021 edition, where on the 29th of November BMW unveiled a concept version of the XM at Miami Beach, Florida. Production of the XM started in December 2022 at the BMW US Manufacturing Company plant in Greer, South Carolina, with deliveries expected to commence in 2023. BMW would also enter a gentlemen's agreement with French carmaker Citroën in order to be able to use the name "XM" for its vehicle, since Citroën originally used it for the XM. BMW India announced that it would begin deliveries of the XM in May 2023. Specifications The XM's internal combustion engine, the twin-turbocharged B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BMW 7 Series (G70)
The seventh generation of the BMW 7 Series (model code G70) are luxury saloons consisting of internal combustion versions and a battery electric version known as the BMW i7. It was introduced by BMW on 20 April 2022 during the nameplate's 45th anniversary. Overview The G70 7 Series is offered with petrol, petrol plug-in hybrid, diesel, and battery electric powertrains, with the latter being marketed as the i7. A V12 petrol engine option is no longer offered. The vehicle is only available in long-wheelbase form, with longer exterior dimensions, wider and taller compared to the previous generation long-wheelbase model. In Europe, initial range only includes the i7, while internal combustion versions will be available at a later date which are 740d xDrive with B57 3.0-litre turbo six-cylinder, along with two plug-in hybrid models which are 750e xDrive and M760e xDrive which will also be offered worldwide. The M760e xDrive will be the successor to the V12 V12 or V-12 may re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mild Hybrid
Mild hybrids (also known as power-assist hybrids, battery-assisted hybrid vehicles or BAHVs) are generally cars with an internal combustion engine equipped with an electric machine (one motor/generator in a parallel hybrid configuration) allowing the engine to be turned off whenever the car is coasting, braking, or stopped, and then quickly restarted once power is again required. Mild hybrids may employ regenerative braking and some level of power assist to the internal combustion engine (ICE), but mild hybrids do not have an electric-only mode of propulsion. Overview The mild hybrid's electric motor provides greater efficiency through the use of a single device that is essentially an integrated starter/alternator sometimes known as a generator-motor unit. A typical mild-hybrid setup uses a belt-powered generator-motor unit driven off the engine to supply power to a small battery. The generator is also powered through regenerative braking, enabling power that would otherwise be dis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
VANOS
VANOS is a variable valve timing system used by BMW on various automotive petrol engines since 1992. The name is an abbreviation of the German words for ''variable camshaft timing'' (german: variable Nockenwellensteuerung). The initial version (retrospectively renamed "single VANOS") was solely used on the intake camshaft, while the later "double VANOS" systems are used on intake and exhaust camshafts. Since 2001, VANOS is often used in conjunction with the valvetronic variable valve lift system. Operation VANOS is a variator system that varies the timing of the valves by moving the position of the camshafts in relation to the drive gear. The relative timing between inlet and exhaust valves is changed. At lower engine speeds, the position of the camshaft is moved so the valves are opened later, as this improves idling quality and smooth power development. As the engine speed increases, the valves are opened earlier: this enhances torque, reduces fuel consumption and lowers emi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
European Emission Standards
The European emission standards are vehicle emission standards for pollution from the use of new land surface vehicles sold in the European Union and EEA member states and the UK, and ships in EU waters. The standards are defined in a series of European Union directives staging the progressive introduction of increasingly stringent standards. , the standards do not include non-exhaust emissions such as particulates from tyres and brakes. Details of Euro 7 have been postponed to 12 October 2022. Background In the European Union, emissions of nitrogen oxides (), total hydrocarbon (THC), non-methane hydrocarbons (NMHC), carbon monoxide (CO) and particulate matter (PM) are regulated for most vehicle types, including cars, trucks (lorries), locomotives, tractors and similar machinery, barges, but excluding seagoing ships and aeroplanes. For each vehicle type, different standards apply. Compliance is determined by running the engine at a standardised test cycle. Non-co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of BMW Engines
BMW has been producing engines for automobiles, motorcycles and aircraft since 1917, when the company began production of an inline-six aircraft engine. They have been producing automobile engines since 1933. Motorcycle engines Automotive petrol engines BMW is well known for its history of inline-six (straight-six) engines, a layout it continues to use to this day despite most other manufacturers switching to a V6 layout. The more common inline-four and V8 layouts are also produced by BMW, and at times the company has produced inline-three, V10 and V12 engines, BMW also engineered non production customised engines especially for motorsports which includes M12/13, 1.5-Liter straight 4 piston turbocharged engine from 1982-1987 for Brabham, Arrows and Benetton Formula One teams, E41/P83, 3.0-Liter V10 from 2000-2005 for Williams F1 Team and P86/8, 2.4-Liter V8 for their own F1 team parterning Sauber F1 from 2006-2009, with which the company enjoyed its first and best ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
