d. Slide Valve

d 1. Sleeve Valve d 2. Reciprocating Ring Valve d 3. Piston Valve e. Rotary Valves e 1. Disc e 2. Cylinder or Barrel e 3. Single Cone e 4. Double Cone f. Two Piston (Balanced Explosion) g. Rotary Cylinder, Fixed Crank (Aerial) h. Fixed Cylinder, Rotary Crank (Standard Type)

A3. Six-Stroke Cycle

B. External Combustion (Practically Obsolete) a. Turbine, Revolving Rotor b. Reciprocating Piston

CLASSIFICATION BY CYLINDER ARRANGEMENT

Single Cylinder a. Vertical b. Horizontal