One of the distinguishing features is that they don't need valves to operate. That's to say, the Wankel rotary engine design doesn't have valves — but quite a few rotary engine designs have ...

With control valves, this is a stroke motion. With flaps, ball cocks or rotary plug valves, this is a pivoting motion. The Rotork CVA offers an accurate and responsive method of automating control ...

Rotary actuators produce oscillating power by rotating an output shaft through a fixed arc. Rotary actuators produce oscillating power by rotating an output shaft through a fixed arc. They are ...

To improve the speed and control of rotary actuators used in laser scanning and other optical systems, engineers at Pangolin Laser Systems, Orlando, Fla., decided to take matters into their own ...