Patent ID: 6962213

Claim:
An apparatus for transitioning between fluid power and torque using a fluid flow, said apparatus comprising: at least two piston sleeves, a drive shaft, a housing, inlet passageways, outlet passageways, and a valve system; said piston sleeve and said valve system intermediate and operatively connected to said drive shaft and said housing, each said piston sleeve having opposing ends; a first interface between said drive shaft and each said piston sleeve and a second interface between said housing and each said piston sleeve, said first interface and said second interface being each a different one of either of a linear interface and a combination interface such that linear motion in said piston sleeve results in rotation of said drive shaft relative to said housing; said inlet passageways and said outlet passageways capable of supporting portions of said fluid flow; and said valve system operative to coordinate intermittent flow of said portions of said fluid flow within each of said inlet passageway and each said outlet passageway such that said inlet passageways and said outlet passageways become alternatingly accessible to said opposing ends of each said piston sleeve.