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Meyer-Schuster Rearrangement. The reaction mechanism [5] begins with the protonation of the alcohol which leaves in an E1 reaction to form the allene from the alkyne.Attack of a water molecule on the carbocation and deprotonation is followed by tautomerization to give the α,β-unsaturated carbonyl compound.
Honda has made a number of naturally-aspirated V12 engines designed for Formula One motor racing; starting with the 1.5-litre RA271E engine in 1964, [10] [11] and ending with the 3.0-litre RA273E in 1968. [5] [12] This would be followed by a 21-year hiatus, until Honda reintroduced the new 3.5-litre RA121E in 1991. [13]
As a large scale manufacturer, Mitsubishi had a wealth of experience building engines, both gasoline and diesel, in V and straight engine block configurations during the war. One of their many examples was the air-cooled A6120VDe air-cooled inline 6-cylinder 14.4 L diesel and the SA12200VD air-cooled V-12 diesel (21.7 litres).
[1] In classical mechanics, the kinetic energy of a non-rotating object of mass m traveling at a speed v is . [2] The kinetic energy of an object is equal to the work, or force in the direction of motion times its displacement , needed to accelerate the object from rest to its given speed.
The Falconer V-12 is an American V-12 performance racing engine engineered and built by Ryan Falconer Racing Engines. The engine was first brought to market in 1990, and has roots in small block Chevrolet engines. It is available in multiple configurations for a variety of applications; primarily designed for high performance purposes including ...
The Red Army adopted the V-2 engine in the same year in three modifications: the V-2 (500 hp (370 kW)), the V-2K (600 hp (450 kW)) for the KV line of tanks and the V-2V (375 hp (280 kW)). [ 1 ] Near the end of the 20th century, the V-2 was fitted with more modern modifications by the chief designer of the head design bureau for the Chelyabinsk ...
In 1932 Lincoln offered for the first time a 447.9 cubic inch (7.3 L) L-head V-12 with a seven-main bearing crankshaft and 150 hp. The K-Series was previously available only with a developed version (bored out to 384 cubic inches (6.3 L) in 1928 and uprated to 125 hp for 1932) of the 60° V-8 which first saw duty in the 1920 Lincoln L-Series.
The engine was dubbed the 115-12, and was a 180° V12 engine; essentially making it a flat-12 engine. [6] [7] [8] Their second 12-cylinder engine, dubbed the 1260, debuted at the 1979 Italian Grand Prix. This time, the engine configuration was a conventional 60° V-12, rather than a flat layout.