i feel a need - stanford universityweb.stanford.edu/class/me29si/materials/lecture2_highres.pdf ·...
TRANSCRIPT
ME29SI Lecture 2
Propulsion:I feel a need...
Combustion
Fuel + Air Heat + Water + Carbon Dioxide + Nitrogen
14.7:1 Air:Fuel Ratio for Stoiciometric in Petrol
Imports
• Canada (23.3%)
• Venezuela (10.7%)
• Saudi Arabia (10.4%)
• Mexico (9.2%)
• Nigeria (8.3%)
Oil
Engines
Chevrolet Corvette ZR1
Powered by 6.2L Supercharged V8 (LS9)
638 hp at 6500 RPM
604 ft-lb at 3800 RPM
9.9:1 Compression
3.3 0-60 mph
205 mph+ top speed
$111,100
Internal Combustion
Suck
Blow Squish
Bang
Ideal Gas Law
pV = nRT
p: Pressure
V: Volume
n: Amount of Gas
R: Universal Gas Constant
T: Temperature
V8 Cylinder Block
Engine Configurations
Piston - Disassembled
Piston - Assembled
Crankshaft
Oil Pan
4 Stroke, SI, Piston Engine
Cylinder Head/Valves
LS9 Exploded
Camshaft Video
Spark Ignition
Used in nearly all gasoline engines
Much improved in last 30 years
Timing important
Distributors-->Coil near/on Plug
Compression Ignition (Diesel)
Rotary (Wankel) Engine
Video
Mazda RX-8