Buoyancy Energy Extraction Device Using Sealed Liquid Room

The patent introduces a sealed liquid room as an intermediary system between the buoyant object and the external environment. The liquid room captures the changing potential energy of displaced water during the object's vertical movement and converts it into usable mechanical work through pressure differential, thereby enabling energy extraction that would otherwise be unavailable in direct buoyancy motion.

The patent replaces direct mechanical buoyancy motion with a fluid pressure-based system. Instead of relying on the object's direct movement to perform work, the system uses the liquid room to convert buoyancy-induced pressure changes into mechanical energy through the liquid's incompressibility and pressure transmission, achieving energy capture that traditional mechanical buoyancy systems cannot accomplish.

The patent divides the shell body into distinct functional segments: a sealed liquid room and a gas communicating room, separated by a movable sealing strip. This segmentation allows each section to perform its specific function independently - the liquid room captures pressure energy while the gas room provides atmospheric reference pressure - simplifying the overall design by assigning dedicated roles to each component rather than requiring a complex integrated system.

The patent employs dynamic elements including the rotatable inner body connected to an axle, and the movable sealing strip that dynamically separates the liquid and gas rooms. These dynamic components enable continuous energy conversion as the inner body rotates, automatically adjusting the sealing position according to the pressure differential without requiring complex control mechanisms, thus achieving power output with moderate structural complexity.