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

Claim 4:
5. A hydraulic motor and pump comprising:
a rotary toroidal piston chamber having a rectangular space with a bottom, two sidewalls, and an open top;
at least one stationary piston and two retractable gates for each of the at least one stationary pistons within said rotary toroidal piston chamber mounted on a chamber wheel fixed to an axle on which it rotates wherein said at least one stationary pistons and said two retractable gates are evenly spaced around said rotary toroidal piston chamber separating said rotary toroidal piston chamber into partitions, one partition for each at least one stationary piston;
a piston support for each said at least one stationary piston configured to hold said piston stationary while said rotary toroidal piston chamber rotates;
a cam track mounted to said piston support configured to control opening and closing of said two retractable gates;
a stationary cover that encircles and seals said open top of said rotary toroidal piston chamber wherein openings through said stationary cover allow each of said piston supports to pass through and be sealed; and
an input port opening and an output port opening in said stationary cover for each said partition;
wherein said rotary toroidal piston chamber is configured to rotate by reacting directly to continuous hydraulic force on said at least one stationary piston.