| 415 / | HD | ROTARY KINETIC FLUID MOTORS OR PUMPS |
| 148 | DF | SELECTIVELY ADJUSTABLE VANE OR WORKING FLUID CONTROL MEANS {3} |
| 149.1 | DF | .~ Separate means upstream and downstream of blade set {1} |
| 149.2 | ![]() | .~.~ Including axial flow blade set {2} |
| 149.3 | DF | .~.~.~> Means to reverse flow through blade set |
| 149.4 | DF | .~.~.~> Plural, selectively adjustable, alternating vane assemblies and blade rows (A,B,A,B) |