Abstract: A flow machine for a fluid is presented with a radial sealing gap (9) between stator parts (4) and a rotor (3), wherein at least one wear ring (5) is provided at the sealing gap and is fastened to a stator part (4) via an elastically deformable fastening part. The fastening part (6) is connected on the one side to the stator part (4). On this side a radial gap (8) is formed between an outer jacket surface of the wear ring and the fastening part and, on the other side, with the wear ring. On this side a radial gap (7) is formed between an outer jacket surface of the fastening part and the stator part.

Abstract: A multi-phase pump for the pumping of mixtures, which contain a plurality of phases is proposed. The multi-phase pump (1) is equipped with at least one rotor (5.1, 5.2), a hollow shaft (2) on which the rotor is arranged and with at least one shaft extension piece (10) which respectively includes a shaft extension (12, 12.2) with a shaft diameter which is smaller relative to the hollow shaft and a connection part (11), in order to connect the at least one shaft extension piece to the hollow shaft. Additionally a flange (11a) is formed on the connection part (11) of the shaft extension piece (10), which is connected to an end face (2a) of the hollow shaft (2).

Abstract: A flow machine for a fluid is presented with a radial sealing gap (9) between stator parts (4) and a rotor (3), wherein at least one wear ring (5) is provided at the sealing gap and is fastened to a stator part (4) via an elastically deformable fastening part. The fastening part (6) is connected on the one side to the stator part (4). On this side a radial gap (8) is formed between an outer jacket surface of the wear ring and the fastening part and, on the other side, with the wear ring. On this side a radial gap (7) is formed between an outer jacket surface of the fastening part and the stator part.

Abstract: The high pressure rotary pump in a pot housing includes a pressure cap (3). The latter has a flange part with a flange (4) with which the pressure cap is fastened to an end face and annular sealing surface (20) of a housing (2) by being screwed into place. The flange is elastically deformed by being screwed into place. The sealing surface of the housing in the region of a base zone of the flange stands in contact on this with a second sealing surface (40). The two sealing surfaces (20, 40) lie on two at least approximately radially extending conical or annular surfaces prior to the being screwed up. These two surfaces enclose an angle ? which opens outwardly with respect to a central axis (101). After the screwing into place of the flange, the two sealing surfaces are pressed onto one another due to its elastic deformations and thus the angle between the sealing surfaces is equal to zero.

Abstract: The high pressure rotary pump in a pot housing includes a pressure cap (3). The latter has a flange part with a flange (4) with which the pressure cap is fastened to an end face and annular sealing surface (20) of a housing (2) by being screwed into place. The flange is elastically deformed by being screwed into place. The sealing surface of the housing in the region of a base zone of the flange stands in contact on this with a second sealing surface (40. The two sealing surfaces (20, 40) lie on two at least approximately radially extending conical or annular surfaces prior to the being screwed up. These two surfaces enclose an angle &khgr; which opens outwardly with respect to a central axis (101). After the screwing into place of the flange, the two sealing surfaces are pressed onto one another thanks to its elastic deformations and thus the angle between the sealing surfaces is equal to zero.