The invention relates to a pressure body (1) which is filled with a working medium (2, 3) and is rotatably mounted about an axis (15), having several chamber levels (4, 6) which are mutually connected via channels (5.1 to 5.x, 7.1 to 7.x), the chamber planes (4, 6) being arranged parallel to one another as seen in the axial direction, the at least one compression chamber plane (4) in the area of the outer diameter (a) with a mixing vortex chamber (6 ), is connected via a pressure channel (5.1 to 5.x), and a separation area with a droplet separator element (19) is provided in the mixing vortex chamber (6) on an inner diameter area (c) and a return channel (7.1 to 7.x) is provided, which leads back into the compression chamber (4), characterized in that the mixing vortex chamber (6) has a first plane and a second plane, wherein in the first plane, at least between the outer diameter area ( a) and the inner Diameter area (c), a plurality of flow elements (25) are arranged, which are shaped such that the working medium is compressed when it flows around it, seen in the flow direction in front of the flow elements (25) and swirled behind the flow elements (25).
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