Patent ID: 8833070

Claim:
A hydro-pneumatic cylinder, comprising: a first end plate and a second end plate oppositely disposed from one another in the cylinder, the first and second end plates being at least partially planar and parallel to one another; a drive axle extending longitudinally through the cylinder and passing through the first and second end plates; a core support coupled to each end plate and the drive axle, the core support being centrally disposed in the cylinder; a plurality of vanes, each of the plurality of vanes coupled to the core support and the first and second end plates, wherein each of the plurality of vanes includes a proximal end secured to the core support and a distal end separated from the proximal end; a microbubbler secured to the distal end of at least one of the plurality of vanes; a bucket area defined by the core support, two of the plurality of vanes, and the first and second end plates; and a vane support coupled to the plurality of vanes, the vane support being at least partially parallel to the first and second end plates, wherein the vane support defines a plurality of openings formed therein through which a fluid can pass for equalizing pressure in the bucket area.