| 418 / | HD | ROTARY EXPANSIBLE CHAMBER DEVICES |
| 160 | DF | MOVING CYLINDER {1} |
| 161 | DF | .~ Rotating {5} |
| 164 | ![]() | .~.~ Rotary internal reacting member {3} |
| 165 | DF | .~.~.~> Cylinder engages plural internal reacting members |
| 166 | DF | .~.~.~> Intermeshing peripheral surfaces {4} |
| 172 | DF | .~.~.~> With movable partition member {2} |