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

Claim 9:
10. 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 piston 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 piston 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 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;
a seal channel at a top of each sidewall of said rotary toroidal piston chamber;
a flange along both side edges of said stationary cover extending into a center of each said seal channel;
resilient sealing material filling space above and below said flange in each said seal channel;
adhesive on a bottom surface of each said seal channel holding said resilient sealing material in place providing a pressure tight seal between said stationary cover and said open top of said rotary toroidal piston chamber; 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.