US Patent 6837611 Fluid driven agitator used in densified gas cleaning system

This invention relates to a fluid driven agitator used in densified gas cleaning system, which comprises a hydraulic motor mounted to a cleaning vessel of the densified gas cleaning system, wherein the hydraulic motor comprises a fluid in-port for charging the fluid into the hydraulic motor from outside of the cleaning vessel, and a fluid out-port for discharging the fluid from the hydraulic motor out of the cleaning vessel. An output shaft of the hydraulic motor can be joined to a rotatable component, such as a rotary basket or an impeller, subjecting circulation of the fluid and resulting in stirring.