CHAPTER I

GASOLINE-ENGINE PRINCIPLES

PAGES

Properties of gases—Steam-engine principles—Gasoline-engine principles—Combustion and explosion—Events of cycle—Four-cycle and two-cycle engines—Strokes of cycle—Fly wheel—Valves—Inlet stroke—Inlet valve closing—Compression-combustion stroke—Advantages of compression—Instant of ignition—Advancing and retarding ignition—Limit of compression—Power stroke—Heat losses—Opening of exhaust valve—Exhaust stroke—Clearance—Back pressure—Steam and Gasoline engines compared—Gasoline—engine power 1-19