Aviation Engines: Design—Construction—Operation and Repair
CHAPTER VII
Why Lubrication Is Necessary--Friction Defined--Theory of Lubrication--Derivation of Lubricants--Properties of Cylinder Oils --Factors Influencing Lubrication System Selection--Gnome Type Engines Use Castor Oil--Hall-Scott Lubrication System--Oil Supply by Constant Level Splash System--Dry Crank-Case System Best for Airplane Engines--Why Cooling Systems Are Necessary--Cooling Systems Generally Applied--Cooling by Positive Pump Circulation-- Thermo-Syphon System--Direct Air-Cooling Methods--Air-Cooled Engine Design Considerations 201-232