# US 2025/0146477 A1 · Power output economizing device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2025/0146477 A1 - Document ID: US20250146477A1 - Status: Published application - Kind: A1 - Application number: 18/387,471 - Filed: 2023-11-07 - Published: 2025-05-08 - Earliest claimed: 2022-12-01 - Assignees: Ching-Ho Lo; Tzu-Chieh Lo - Inventors: Ching-Ho Lo - Web page: https://patentgrep.com/patent/US20250146477A1 ## CPC - F03G 3/08: using flywheels - F16C 32/0408: {Passive magnetic bearings} - F16F 15/3156: {Arrangement of the bearings} - F16C 2361/55: Flywheel systems - F16F 2222/08: Inertia - F16F 2224/0208: Alloys - F16F 2232/02: Rotary - F16F 2234/02: cylindrical - F03G: SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR (arrangements in connection with power supply in vehicles from force of nature B60K16/00; electric propulsion with power supply in vehicles from force of nature B60L8/00) - F16C: SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS - F16F: SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION ## Abstract A device for economizing power output includes a circular rotary unit and a holder. When the rotational output end of a power source is connected to a power connection portion of the circular rotary unit and the rotational power is output from a power connection portion to a load, the circular rotary unit is suspended by the holder, so that when the power source drives the circular body to rotate, the circular body can rotate relative to the holder without friction or being in contact with brackets of the holder. The gravitational inertia generated by the circular body during its high-speed rotation enables the power source to drive the load. ## Claims ### Claim 1 A power output economizing device, comprising: a circular rotary unit, including a cylindrical circular body with a power connection portion and an output connection portion at respective centers of two end faces thereof, a first magnet assembly being provided on each of circumferential surfaces of two ends of the circular body, a pole of a radial outer surface end of the first magnet assembly being one of south(S) or north (N) poles; and a holder, including a pair of brackets relative to the first magnet assemblies at the two ends of the circular body, the pairs of brackets each having a receiving circular hole corresponding to the circular body, the receiving circular hole having a diameter slightly greater than that of the circular body, the receiving circular hole surrounding a periphery of the first magnet assembly, a second magnet assembly being provided on an inner wall of the receiving circular hole, a pole of a radial outer surface end of the second magnet assembly being the same pole as the first magnet assembly so that the pair of brackets support the two ends of the circular body in a suspending manner. ### Claim 2 (depends on 1) The power output economizing device of claim 1, wherein an annular groove is formed on the circumferential surface of each of the two ends of the circular body, the first magnet assembly is composed of a plurality of magnet blocks that are arranged in sequence and secured in the annular groove; the second magnet assembly on the receiving circular hole of each of the pair of brackets is composed of a plurality of magnet blocks that are arranged in sequence and secured on the inner wall of the receiving circular hole, the second magnet assembly and the first magnet assembly form a repulsive magnetic force in the annular groove. ### Claim 3 (depends on 1) The power output economizing device of claim 1, wherein a third magnet assembly is provided on at least one of two axial sides facing each other or not facing each other of the pair of brackets, a pole of an axial outer surface end of the third magnet assembly is one of south(S) or north (N) poles; the two ends of the circular body each have a magnet mounting end face relative to the third magnet assembly, a fourth magnet assembly is provided on the magnet mounting end face corresponding to the third magnet assembly, and a pole of an axial outer surface end of the fourth magnet assembly is the same pole as the third magnet assembly. ### Claim 4 (depends on 3) The power output economizing device of claim 3, wherein the third magnet assembly and the fourth magnet assembly are each composed of a plurality of round magnets and/or magnet blocks that are arranged in sequence and secured to the axial side of the corresponding bracket and the magnet mounting end face in a magnetically repulsive manner. ### Claim 5 (depends on 1) The power output economizing device of claim 1, wherein the pair of brackets each includes a pair of half brackets that are connected to each other to form the receiving circular hole, and coupling members are provided on radial outer edges of two butt joints of the pair of half brackets for restricting separation of the pair of half brackets. ### Claim 6 (depends on 5) The power output economizing device of claim 5, wherein the coupling members on the two butt joints of the pair of half brackets are in the form of a hinge and lugs locked by screws. ### Claim 7 (depends on 1) The power output economizing device of claim 1, wherein the output connection portion of the circular rotary unit is connected to a clutch, and the clutch outputs a rotational power through a power output end. ### Claim 8 (depends on 7) The power output economizing device of claim 7, wherein the clutch is controlled by a controller to control a power output timing of the power output end, and the controller detects a rotational speed of the circular body through a rotational speed detector.