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Internal Combustion Engine Fundamentals
Jeffrey B. Burl and Duane Abata
Michigan Tech University
Slide 01
Internal Combustion Engine Basics
D. Abata
Slide 02
Internal Combustion Engine Basics
D. Abata
areaforcepressure =
force = pressure x area
Slide 03
Internal Combustion Engine Basics
D. Abata
areaforcepressure =
force = pressure x area
Slide 04
Internal Combustion Engine Basics
D. Abata
Slide 05
Internal Combustion Engine Basics
D. Abata
crank mechanism
ignition system
Slide 06
Internal Combustion Engine Basics
D. Abata
intake system
ignition system
crank mechanism
Slide 07
Internal Combustion Engine Basics
D. Abata
exhaust system
ignition system
crank mechanism
intake system
Slide 08
Internal Combustion Engine Basics
D. Abata
cooling system thermostatintake system
exhaust system
ignition system
crank mechanism
Slide 09
Internal Combustion Engine Basics
D. Abata
lubrication system
crankcase vent
ignition system
exhaust systemintake system
cooling system thermostat
Slide 10
Internal Combustion Engine Basics
D. Abata
fuel
air air + fuel
volume
pres
sure
TDC BDC
Slide 11
Internal Combustion Engine Basics
D. Abata
stoichiometric mixture
volume
pres
sure
TDC BDC
Slide 12
Internal Combustion Engine Basics
D. Abata
volume
pres
sure
TDC BDC
Slide 13
Internal Combustion Engine Basics
D. Abata
volume
pres
sure
TDC BDC
Slide 14
Internal Combustion Engine Basics
D. Abata
volume
pres
sure
TDC BDC
Slide 15
Internal Combustion Engine Basics
D. Abata
volume
pres
sure
TDC BDC
Slide 16
Internal Combustion Engine Basics
D. Abata
volume
pres
sure
TDC BDC
Slide 17
Internal Combustion Engine Basics
D. Abata
volume
pres
sure
TDC BDC
Slide 18
Internal Combustion Engine Basics
D. Abata
exhaust gas residual
volume
pres
sure
TDC BDC
negative work
positive work
Work = (pressure x volume)
Slide 18
Internal Combustion Engine Basics - Some Problems
D. Abata
CxHx
CONOx
mixture preparation
intake tuning
combustion, autoignition
wear
inertia
lubrication
exhaust tuning emissions
The Diesel Engine
Internal Combustion Engine Basics
D. Abata
volume
pres
sure
TDC BDC
negligible negative work
The Diesel Engine
Internal Combustion Engine Basics
D. Abata
10000 - 20000 psi
Internal Combustion Engine Basics
D. Abata
The Two Stroke EngineSlide 01
Internal Combustion Engine Basics
D. Abata
The Two Stroke EngineSlide 02
Internal Combustion Engine Basics
D. Abata
The Two Stroke EngineSlide 03
Internal Combustion Engine Basics
D. Abata
The Two Stroke EngineSlide 04
Internal Combustion Engine Basics
D. Abata
The Two Stroke EngineSlide 05
Internal Combustion Engine Basics
D. Abata
The Two Stroke EngineSlide 06
Summary
• two engine/fuel types– gasoline (premixed)
– diesel (diffusion)
• four stroke, two stroke– intake
– compression
– power
– exhaust
• problem areas– performance
– emissions
Four Stroke Gasoline Engine
Four Stroke Diesel Engine
Two Stroke Gasoline Engine
Why?
5,000,000,000 engines(one engine for every man, woman and child in the world)
