Georgia State University
Georgia State University: Hyper Physics: Heat Engine Concepts: The Otto Cycle
Schematic diagrams illustrating the operation of a four-stroke engine cycle. Interactive buttons allow you to step through the various steps of each engine cycle. Each graphic is accompanied by an excellent explanation.
Colorado State University
Csu: Model of Basic Otto Cycle
This site from the Colorado State University discusses the Otto cycle of a car engine. Includes a highly mathematical treatment of the efficiency of such engines. Includes a link to a java applet investigating the efficiency of such...
Learn Engineering
Learn Engineering: Diesel Engine vs. Petrol Engine
This video and article explore the differences and the similarities between petrol and diesel engines. The article discusses all topics found in the video. [4:06]
Other
Applied Thermodynamics: Heat Engines
Forward and reverse heat engines are discussed and explained at this site from Applied Thermodynamics. Diagrams are provided. Efficiency equations are given and discussed.
Colorado State University
Csu: Four Stroke Fuel Air Otto Cycle Gasoline (C7 H17)
A Java applet which allows the visitor to investigate the physical parameters associated with the individual strokes of a 4-stroke gasoline engine. Visitors enter parameters such as exhaust temperature, fuel ratio, and ambient pressure...