| 418 / | HD | ROTARY EXPANSIBLE CHAMBER DEVICES |
| 160 | DF | MOVING CYLINDER {1} |
| 161 | | .~ Rotating {5} |
| 162 | DF | .~.~> With axially movable partition member {1} |
| 164 | DF | .~.~> Rotary internal reacting member {3} |
| 175 | DF | .~.~> Moving partition on stationary member |
| 176 | DF | .~.~> Swinging partition |
| 177 | DF | .~.~> Sliding partition |