Fluid-driven motor

A motor to be driven by a pressurized fluid comprising:

• (a) a manifold comprising a fluid flow channel for conveying the pressurized fluid, said manifold providing an arcuate surface defining:
• (i) a valve opening in fluid connection with said fluid flow channel, and
• (ii) a sealing surface;
• (b) a cylinder having a cylinder head providing a facing surface configured to cooperate with said arcuate surface, said facing surface having at least one aperture, said cylinder being pivotally mounted about a pivot axis so as to be pivotable between:
• (i) a neutral state in which said aperture is in facing relation to said sealing surface,
• (ii) an inlet state, angularly displaced over a range of positions to a first side of said neutral state, in which said aperture is in fluid connection with said valve opening for intake of the pressurized fluid into said cylinder, and
• (iii) an exhaust, state angularly displaced over a range of positions to a second side of said neutral state, in which said aperture is in fluid connection with a drainage volume for exhaust of the fluid from the cylinder;
• (c) a piston deployed within said cylinder so as to be driven to extend by pressure of the pressurized fluid introduced to an internal volume of said cylinder;
• and
• (d) a crank associated with a crankshaft, said piston being linked to said crank such that rotation of said crankshaft about a crankshaft axis delimits a cyclic motion of said piston and said cylinder in which said cylinder assumes said inlet state for an extension power stroke of said piston, passes through said neutral state and assumes said exhaust state for a return motion of said piston,
• wherein said pivot axis of said cylinder is located between said crankshaft axis and said arcuate surface.