PPT for seminar on W Engine
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Transcript of PPT for seminar on W Engine
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W ENGINES- THE SUPER ENGINES
Presented by:-Ankit Chahal
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IntroductionThe constantly rising demands regarding
performance, running comfort and fuel economy have led to the advancement of existing drive units and the development of new drive units- the W engines.
As with the V engines, the cylinders are distributed to two banks.
In the W engines, these banks of cylinders are aligned at a V-angle of 72° in relation to one another.
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Why called W ?
72°
15°
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The W principleTo illustrate the principle of the W engine cylinder arrangement, let first look at conventional engine types.
The V EngineThe Inline Engine
60 - 120°
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The VR Engine The W Engine
72°15°
15°
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The modular design principle of the W engines
Two compact VR engines from the VR series are combined to produce a W engine.
The result is a series of compact petrol engines ranging from the W8 to the W16.
Combining two VR engines with a cylinder angle of 72° produces a W engine.
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A Comparison When a conventional 8-cylinder V engine
is compared to an 8- cylinder W engine, the latter particularly stands out due to its compact design and very small external dimensions.
W engine is highlighted by the fact that it has even smaller external dimensions than a conventional V8 engine.
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The W8 engine The V8 engine
W8 crankshaft V8 crankshaft
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Specifications -The W8 engine
Displacement [cc] 3999
Bore [mm] 84
Stroke [mm] 90.168
Number of cylinders 8
Number of cylinder heads 2
Dimensions (l x w x h) [mm] 420 x 710 x 683
Max. torque [Nm] 370
V-angle of cylinder heads [°] of both banks
72
V-angle of cylinders [°] in a bank
15
Number of valves 4 / cylinder
Weight [kg] (approx.) 193
Firing order 1-5-4-8-6-3-7-2
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The CrankcaseThe crankcase comprises two components:
the crankcase upper section and the crankcase lower section.
The upper section contains, among other things, the cylinders and the upper bearing cover halves of the crankshaft.
The crankcase lower section is designed as a bearing support and carries the lower bearing cover halves.
The bearing support is attached to the crankcase upper section by 4 bolts per bearing cover.
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Crankcase upper section
Crankcase lower section
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The Cylinder HeadsThe W engines have two aluminium
cylinder heads with two overhead camshafts apiece.
Camshaft bearing exhaust
Camshaft bearing – intake
Opening for injector
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Due to the cylinder arrangement, short and long valves as well as short and long inlet and exhaust ports alternate with one another.Intake ports Intake valve
Exhaust ports
Exhaust valve
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Latest W Engine-The W16 Engine
A W16 engine is a sixteen cylinder piston internal combustion engine.
All W16 engines consist of two 'double-row’ banks of eight cylinders, coupled to a single crankshaft.
Volkswagen Group is the only automotive manufacturer currently producing W16 engines.
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Why Called SUPER ENGINE?The Bugatti Veyron 16.4 is the fastest
supercar in the world, with a proven top speed of over 400 km/h (407 km/h).
The Bugatti Veyron features a super W16 engine—16 cylinders in 4 banks of 4 cylinders.
Bugatti once again claimed the land speed record for production cars on July 4, 2010 with the Veyron Super Sport version with an unbelievable speed of 432kph.
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Specifications- BUGATTI VEYRON SSPrice Rs 16 crore
0-100 2.5 sec
Top speed 432 kph
Economy 5.19 kpl
Engine layout W16, 7993cc, quad-turbo, petrol
Power 1184 bhp at 6400 rpm
Torque 152.77 kgm at 3000-5000 rpm
Compression ratio 8.3:1
Kerb weight 1838 kg
Length 4462 mm
Width 1998 mm
Height 1190 mm
Wheelbase 2710mm
Fuel tank 100 litres
Wheels 20 in, magnesium alloy
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ConclusionW engine creates a new era of powerful
& efficient engines with better fuel economy.
From 1906 to present there is a constant increase in performance of W engines.
Engineers are trying to make it more powerful & efficient and are looking forward to make W engines suitable for aviation purposes with lesser fuel consumptions.
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THE END! THANK YOU ALL!!
HAVE A GOOD DAY!!!