Presentation on W 12 Engine

1. PRESENTATION
ON
W-12 ENGINE
BY:-
MD.MUDASSIR
KHAN
B.TECH
FINAL YEAR
(MECH)
W-12 ENGINE

2. CONTENTS :-
• Abstract
• Introduction
• W stands for
• Working principle
• Types of Engines
Inline engine
V engine
VR engine
• Modular design
• W 12 Engine Components
• W 12 Engine Specifications
• Advantages
• Conclusions
• References

3. ABSTRACT
With the rising demands of power , better performance & fuel economy in automobile
vehicles, engineers do many research & finally they got success in the form of a new breed
of engines known as ‘W Engines’. One of the first W engines was a three-cylinder (W3),
built by Anzani in 1906 to be used in motorcycle. The 1917 Napier Lion aircraft engine was
an early W12 engine.
The W engines set exacting demand on design. Large numbers of cylinders were adapted to
extremely compact dimensions of the engine. In this process, more attention was paid to
lightweight design.

4. INTRODUCTION
A W 12 Engine is a twelve cylinder piston internal combustion engine in a W
configuration. W 12 engine have been manufactured in the two distinct configurations.
Two compact engines from the VR series are combined to produce a W engine. The result
is a series of compact gasoline engines ranging from the W8 to the W16.
The original w 12 configuration used three banks of four cylinders coupled to a common
crankshaft with 60 deg angles between the banks. The W engines set exacting demands on
design. Large numbers of cylinders were adapted to the extremely compact dimensions of
the engine. In the process, more attention was paid to lightweight design. As with the V
engines, the cylinders are distributed to two banks. In the W8 and W12 engines, these
banks of cylinders are aligned at a V-angle of 72 degrees in relation to one another. As in
the VR engine, the cylinders within each bank maintain a V-angle of 15 degrees

5. W STANDS FOR -
• With the aim of building even more
compact engines with a large number of
cylinders, the design features of the V
and VR engines were combined to
produce the W engines.
• When the W engine is viewed from the
front, the cylinder arrangement looks like
a double-V. Put the two Vs of the right
and left cylinder banks together, and you
get a W. This is how the name “W
engine” came about.

6. The engines of the W family are
a combination of two “VR
banks” based on a modular
design principle. The cylinders
of one bank have an angle of 15
degrees relative to each other
while the two VR banks are
arranged at a V-angle of 72
degrees.
WORKING
PRINCIPLE

7. TYPES OF ENGINES :-
• Inline Engines.
• V Engines.
• VR Engines.

8. 1) INLINE ENGINE
• It represents the earliest
development level in engine
configuration. The cylinders are
arranged in-line vertically above
the crankshaft.

9. 2) V - ENGINE
• To make engines shorter, the
cylinders in the V engines are
arranged at an angle in between 60
degrees and 120 degrees, with the
Centerlines of the cylinders
intersecting with the centerline of
the crankshaft.

10. 3) VR - ENGINE
• The need for a powerful
alternative suitable for transverse
mounting for use in small to mid-
size vehicles saw the development
of the VR engine.
• Six cylinders, offset at a V-angle
of 15 degrees, are accommodated
in a fairly slender and very short
engine block. Unlike previous
designs, the engine only has one
cylinder head. This made it
possible to supply the Golf with a
compact VR6 engine.

11. MODULAR DESIGN
• Two compact engines from the VR
series are combined to produce a W
engine. The result is a series of
compact gasoline.
• Engines ranging from W8 to W16. In
the evolution of the 6-cylinder engine,
the VR6 engine stands out due to its
compactness. It is much shorter than
the comparable inline engine, and
narrower than V engine. Combining
two VR6 engines with a cylinder
angle of 72 degrees produces a W12
engine.

12. W-12 ENGINE
COMPONENTS :-
• Cylinder block
• Crankcase lower section with
bearing support
• Crankshaft with connecting
rods and pistons
• Balancing shafts
• Engine — Mechanics
• Cylinder heads
• Oil sump and oil pump
• Crankshaft drive
• Timing chain drive
• Belt drive for auxiliary
components
• Multi-part intake manifold

13. W-12 ENGINE
SPECIFICATIONS:-
• Displacement - 366 cu in (5998 cm3)
• Bore - 3.307 in (84.0 mm)
• Stroke - 3.550 in (90.168 mm)
• Number of cylinders - 12
• Number of cylinder heads - 2
• V-angle of cylinder heads between
banks - 72 degrees
• V-angle of cylinders in a bank - 15
degrees
• Number of valves - 4 per cylinder
• Firing order - 1-12-5-8-3-10-6-7-2-11-
4-9

14. • Dimensions -
20.2 in (513 mm) long.
28.0 in (710 mm) wide.
28.1 in (715 mm) height.
• Weight Approximately - 541 lbs.
(245 kg).
• Maximum power output -
Approximately 420 bhp (309 kW).
• Maximum torque - Approximately
406 lbs-ft (550 Nm) .
• Fuel type recommendation -
Premium unleaded gasoline (91
AKI).
• Installation position - In-line.

15. ADVANTAGES :-
• W is shorter than V. It can be set further back in the car to balance weight distribution.
• Easy in manufacturing and development.
• It also makes all the cars it equips very different from the competition making it more
unique.

16. CONCLUSION
• W Engine with their successful story created a new era of powerful & efficient engines with
better fuel economy. From 1906 to present there is a constant increase in power and performance
of W engines.
• We have a very good example of Volkswagen which is the only car manufacturer in the world,
currently producing W engines. It is working in this field since 1998 and produced many W
engines e.g. W8, W12 and then W16. W16 engine is currently the most powerful Engine in the
world which when installed in Bugatti Veyron gives running speed of 432kph.
• So as centuries goes on people’s demand for supercars also increases which led many automobile
companies to do research and produce more powerful engine.

17. REFERENCES
• "Department of Energy, Annual Energy Review 2003," DOE/EIA-0384, 2004, Energy
Information Administration (EIA), Washington, D.C.
• Krivts, I. L., and Krejnin, G. V., Pneumatic Actuating Systems for Automatic Equipment :
Structure and Design, CRC/Taylor & Francis, Boca Raton 2006.
• Fronczak, F. J., and Beachley, N. H. "An Integrated Hydraulic Drive Train System for
Automobiles," Fluid Power, R. Heron, ed., Elsevier Applied Science, London, 1988, pp. 199-
215.

18. THANK YOU.