Patent ID: 11952899
Assignee: nan
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A hydraulic motor and pump comprising:
a rotatable toroidal piston chamber mounted on a chamber wheel affixed to an axle, an external frame supporting the axle;
at least two stationary pistons within the piston chamber held in fixed positions by an external piston support which passes through an opening around the piston chamber and which in turn is supported by the external frame;
at least four gates within the piston chamber that rotate with the piston chamber and when closed transmit fluid pressure forces to the chamber wheel and that are adapted to be opened and closed by gate control; and
a stationary cover for the piston chamber for closing and sealing the opening around the piston chamber with openings in the cover for the at least two stationary pistons and fluid input ports and output ports on each side of each of the at least two stationary pistons.