Abstract: Liquid ring systems are known for compressing gasses. However, known systems include seals on moving surfaces that require high precision manufacturing. A liquid ring rotor is provided and methods of operating the same. A liquid ring rotor for a liquid ring system is provided and comprises a shaft, and one or more fluid diverting members. The shaft includes a hollow interior portion, the hollow interior portion having a first opening and a second opening, the second opening disposed in a surface that extends along a length of the shaft and spaced apart from the first opening in the length of the shaft, wherein the shaft is configured to enable a working fluid to pass along the shaft through the hollow interior portion between the openings.

Abstract: Liquid ring systems are known for compressing gasses. However, known systems include moving surfaces that require high precision manufacturing. The invention provides a valve arrangement for a liquid ring system comprising: a plurality of plates; a vane set; and a chamber set that comprises at least one chamber, wherein a first chamber of the chamber set comprises: a first valve, disposed on a first plate of the plurality of plates, which is configured to be closer to the first face of a first vane of the vane set than the second face of the second vane of the vane set; and a second valve, disposed on a second plate, which is configured to be closer to the second face of the second vane than the first face of the first vane.