Abstract: The invention relates to a rotary pump (1) including a rotor (3) arranged in a closed pump housing (2) which is in operative connection with a drive (5) for the pumping of a fluid (4), wherein an inlet opening (6) is provided at the pump housing (2) for the intake of the fluid (4) into the pump housing (2) and an outlet opening (7) is provided at the pump housing (2) for conveying the fluid (4) out of the pump housing into a storage container (8) which is at least partially filled with the fluid (4). In accordance with the invention the outlet opening (7) is arranged and designed at the pump housing in such a way that the fluid (4) can be conveyed out of the pump housing (2) through the outlet opening (7) to the storage container (8) directly and free of ducting. The invention further relates to a hydrodynamic mixer (100) with a rotary pump (1) in accordance with the invention and also to the use of the rotary pump (1) and of the hydrodynamic mixer (100) for the processing of a fluid (4).

Abstract: The invention relates to a rotary pump (1) including a rotor (3) arranged in a closed pump housing (2) which is in operative connection with a drive (5) for the pumping of a fluid (4), wherein an inlet opening (6) is provided at the pump housing (2) for the intake of the fluid (4) into the pump housing (2) and an outlet opening (7) is provided at the pump housing (2) for conveying the fluid (4) out of the pump housing into a storage container (8) which is at least partially filled with the fluid (4). In accordance with the invention the outlet opening (7) is arranged and designed at the pump housing in such a way that the fluid (4) can be conveyed out of the pump housing (2) through the outlet opening (7) to the storage container (8) directly and free of ducting. The invention further relates to a hydrodynamic mixer (100) with a rotary pump (1) in accordance with the invention and also to the use of the rotary pump (1) and of the hydrodynamic mixer (100) for the processing of a fluid (4).