Motors

A motor actuated by a fluid pressure medium comprising a rotatable output drive shaft, first and second support means having axes relatively inclined at an intersecting angle and movable relative to each other, said first support means having a conical surface facing the second support means, said first support means being connected to the output shaft to cause rotation thereof upon movement of said first support means, a multi-lobed, rosette shaped structure divided into a plurality of independent, freely distortable pressure chambers having freely distortable outer peripheral areas arranged between the first and second support means, means for connecting each lobe of the rosette structure only to said second support means over a relatively small area compared to the total surface area of the second support means, and pressure control means for admitting said fluid pressure medium into each pressure chamber sequentially to cause movement of the first support means and rotation of the output shaft and permitting said fluid pressure medium to be expelled from each pressure chamber after the maximum volume of each chamber has been attained.