Buoyant force utilization device

A buoyant force utilization device (1.0) for utilizing and converting kinetic buoyancy energy and/or potential energy into mechanical and/or electrical energy, comprising the following components:

• a) a first space (1.1) filled with a first medium (2.1),
• b) a second space (1.2) filled with a second medium (2.2),
• c) multiple buoyancy bodies (3.0),
• d) a circumferential guide (4.0), wherein movement of multiple buoyancy bodies (3.0) takes place along the circumferential guide (4.0),
• wherein the circumferential guide (4.0) runs through the first space (1.1) and the second space (1.2),
• characterized in that the circumferential guide (4.0) comprises an endless rail system,
• wherein the first space (1.1) and the second space (1.2) are separated from each other by a lock system (1.3),
• wherein the lock system (1.3) has a permanent opening,
• wherein a surface of each of the multiple buoyancy bodies (3.0) facing the first medium (2.1) and/or second medium (2.2) comprises a profiling (5.0);
• wherein the buoyant force utilization device (1.0) further comprises a heat exchanger (1.7), the heat exchanger (1.7) is disposed in the second space (1.2), the heat exchanger (1.7) is configured to receive an external heat energy and heat each buoyancy body (3.0) in the second medium (2.2) to thereby reduce a buoyancy of each buoyancy body (3.0) in the second medium (2.2) and make each buoyancy body (3.0) in the second medium (2.2) sink in the second medium (2.2) and then pass through the permanent opening of the lock system (1.3) and enter the first medium (2.1), a temperature of the first medium (2.1) is lower than a temperature of the second medium (2.2), a buoyancy of each buoyancy body (3.0) from the second medium (2.2) to the first medium (2.1) is increased and thus rises in the first medium (2.1);
• and
• wherein the first medium (2.1) and the second medium (2.2) are chemically identical;
• wherein each of the multiple buoyancy bodies (3.0) is designed as a hollow body, and a material of each of the multiple hollow bodies comprises a metal, a plastic, glass or an organic material;
• wherein the hollow body comprises a gas and a polymer, an average density of each of the multiple buoyancy bodies (3.0) is influenced by expansion of the gas and the polymer, and the expansion of the gas and the polymer depends on a change in temperature in the first space (1.1) and/or the second space (1.2);
• and
• wherein the polymer shrinks when heated and expands when cooled.