A V12 engine has 12 cylinders arranged in two banks of six cylinders each, usually set at a 60° angle. It provides even firing and power delivery twice as often as an inline-6 cylinder engine. V12 engines were originally used in aircraft and luxury cars but increased complexity made them less common. They are still used in high-performance sports cars and for their smooth operation in applications like large diesel engines and tanks.

1. Submitted by:
Akshay Mistri, Abhishek Thakur
Sarthak Anand, Tushar Rastogi
ASET 6MAE3 (2011-2015)
Submitted to:
Prof. Vivek Kumar

2. A V12 engine is a V engine with 12 cylinders mounted on the
crankcase in two banks of six cylinders, usually but not always at a
60° angle to each other, with all 12 pistons driving a common
crankshaft.

3. A V12 engine is a V engine with 12 cylinders mounted on the crankcase
in two of six cylinders, usually but not always at a 60° angle to each other,
with all 12 pistons driving a common crankshaft.
A V12 with two banks of six cylinders angled at 60°, 120° or 180° (with the
latter configuration usually referred to as a flat-12) from each other has
even firing with power pulses delivered twice as often per revolution as a
straight-6.
 In a racing car, the rotating parts can be made much lighter and thus
more responsive, since there is no need to use counterweights on the
crankshaft as is needed in a 90° V8 and less need for the inertial mass in a
flywheel to smooth out the power delivery.

5. The straight-six engine or inline-six engine (often
abbreviated I6 or L6) is an
internal combustion engine with the cylinders
mounted in a straight line along
the crankcase with all the pistons driving a common
crankshaft..
The straight-six layout is the simplest engine layout
that possesses both primary and secondary
mechanical engine balance.

6. The first V12 engine was used in 1912 in Packard’s "Double Six",
but before the World War II the engine was used in a lot of luxury
cars: Cadillac, Packard, Lincoln, Franklin, Rolls-Royce, and
Hispano-Suiza.

9. V12 engines are or were used in for the following purposes:
They were once used in aviation industry
For road cars
In heavy trucks
In Auto Racing
In Large Diesel Engines
Tanks and other AFVs(Armoured fighting vehicles)

10. The first V12 engines were used in aircraft.
By the end of World War I, V12s were popular in the newest and largest
fighters and bombers and were produced by companies such as Renault
and Sunbeam.
Various U.S. companies produced the Liberty L-12; the Curtiss NC Flying
boats, including the four V12 engine poweredNC-4, the first aircraft to make
a transatlantic flight.

11. In automobiles, V12 engines have not been common due to their
complexity and cost.
 They are used almost exclusively in expensive
sports cars and luxury cars

12. Ferrari has traditionally reserved their top V12 engine for their
top-of-the line luxury sports coupes since 1949.
Ferrari's closes trival, Lamborghini has also used the V12 configuration for
many
of its road cars since the company's inception in 1963.
In 1972,
Jaguar came out with the XJ12, equipped with a 5.3 litre V12,
which continued (after revisions in 1993) until the 1996 model
year, after which the marque discontinued the twelve-cylinder
engine.

13. Tatra used a 17.6 L (1,070 cu in) air-cooled naturally aspirated
V12 diesel engine in many of their trucks; for instance, the Tatra
T813 and uses 19 L air-cooled naturally aspirated or turbo V12
diesel engine in Tatra T815. Some large trucks have been fitted
with twin V12s that drive a common shaft, although this is often
advertised as a V24.

14. V12 engines used to be common in Formula One and endurance
racing.
From 1965 to 1980, Ferrari, Weslake, Honda, BRM, Maserati,Matra, Delahaye,
Peugeot, Delage, Alfa Romeo.
Lamborghini and Tecno used 12-cylinder engines in
Formula One, either V12 or Flat-12, but the Ford (Cosworth) V8 had a slightly better
power-to-weight ratio and less fuel consumption.
During thesame era, V12 engines were
superior to V8s in endurance racing, reduced vibrations giving better reliability.

15. V12 is a common configuration for large diesel engines; most are
available with differing numbers of cylinders in V configuration to
offer a range of power ratings. Many diesel locomotives have V12
engines.
Large V12 engines are also common in ships.
These engines are commonly used especially in cruise ships,
which may have up to six such main engines. In the past the
largest medium-speed diesel engine in the world.

16. The V12 is a common configuration for tank and other armoured fighting vehicles (AFVs).
Some examples are:
German Maybach HL120TRM gasoline engine, used on World War II Pz Kpfw III and
Pz Kpfw IV tanks.
British Rolls-Royce Meteor gasoline engine, derived from the Merlin aero-engine, used
on World War II Cromwell and Comet tanks and the post-WWII Centurion and Conqueror
tanks.
The 26.6 litre Perkins diesel engine in the Challenger 2 main battle tank and its variants.

17. The worlds smallest V12 engine was developed bySpanish engineer Patelo
spending more than 1200 hours transforming blocks of aluminum, bronze
and stainless steel. Into the intricate pasts needed to build this amazing V12
engine. The tiny V12 engine is
powered by compressed air which is injected into the engine at 0.1kg/sq
cm.

18. Wikepedia.com/V12 engine
Gizmag.com
Topspeed.com