The Petrol Engine A Text-book dealing with the Principles of Design and Construction, with a Special Chapter on the Two-stroke Engine

This volume opens with the essential concepts of internal‑combustion operation, guiding listeners through the stages of suction, compression, power, and exhaust that define the Otto cycle. Clear explanations of how explosive mixtures behave and why each stroke matters lay a solid groundwork before the text moves into the anatomy of a typical petrol engine.

Subsequent chapters walk through the heart of the machine—pistons, connecting rods, crankshafts, and flywheels—then explore the valve gear, carburetion, ignition systems, and cooling methods. A dedicated section demystifies two‑stroke designs, presenting the “Kean” duplex air‑scavenging model alongside practical twin‑cylinder examples. Throughout, detailed illustrations accompany concise commentary, making the technical material approachable for students, hobbyists, and anyone curious about the mechanics that power automobiles and motorcycles.