Hydropneumatic hybrid cylinder with tandem pistons and dampening hydraulic chambers disposed between them

A hydropneumatic cylinder comprising:

• a. a hollow cylindrical housing unit for providing casing and structural core formed with at least two channels whereby pneumatic energy is provided to said pneumatic actuator actuation means,
• b. at least one actuating means for generating pneumatically powered actuation and simultaneous hydraulic dampening slidably disposed inside said hollow cylindrical housing unit and further composed of equal diameter a first piston and a second piston joint in tandem by being fixedly mounted on a constant diameter rod,
• c. a dividing member for forming hydraulic chambers fixedly installed inside said hollow cylindrical housing unit, said dividing member is formed with an axial bore and disposed between said first piston and said second piston with said constant diameter rod slidably extending through said axial bore, whereby a first hydraulic chamber is formed between said first piston and said dividing member, and a second hydraulic chamber is formed between said second piston and said dividing member, said first hydraulic chamber and said second hydraulic chamber are completely filled with dampening fluid and permanently sealed, whereby said hollow cylindrical housing unit, said actuating means and said dividing member compose a dampening positive-displacement hydraulic cylinder with zero volumetric differential,
• d. at least one dampening fluid path for connecting said first hydraulic chamber and said second hydraulic chamber, said dampening fluid path is being completely filled with dampening fluid, and
• d. at least one damping fluid flow governor means disposed in series with said damping fluid path for controlling flow rate of damping fluid transfer between said first hydraulic chamber and said second hydraulic chamber,
• whereby pneumatically powered actuation of said actuation means will be provided with incompressible hydraulically controlled dampening and positioning.