Abstract: An impeller for a pump, in particular for a cooling water pump of an internal combustion engine, having an impeller body having a hub, a suction-side cover disk having a central opening for suctioning a delivery medium, and having at least one blade, which is connected in one piece to the suction-side cover disk, and which has an inner section in the area of the central opening and an outer section in the area of the suction-side cover disk, the blade being implemented as three-dimensionally curved in the inner section and essentially two-dimensionally in the outer section, the impeller having a pressure-side cover disk, which is implemented as a separate part and is fixedly rotationally connected to the impeller body.

Abstract: An impeller for a pump, particularly for a cooling water pump of an internal combustion engine, includes a hub (11), a cover disc (14) which is disposed on the intake side and is provided with a central opening (15) for sucking in a conveyed medium, and at least one blade (13) that is connected to the cover disc (14) located on the intake side so as to form a single piece therewith and is provided with an inner section (13a) located in the region of the central opening and an outer section (13b) located in the region of the cover disc (14). The impeller achieves a high degree of efficiency yet is easily produced by embodying the impeller (5) in a completely open manner on the pressure side lying opposite the cover disc (14) and by configuring the inner section (13a) of the blade (13) in a three-dimensionally bent manner while configuring the outer section (13b) thereof in an essentially two-dimensionally bent manner.

Abstract: The invention relates to an impeller for a pump, particularly for a cooling water pump of an internal combustion engine, comprising a hub (11), a cover disk (14) which is disposed on the intake side and is provided with a central opening (15) for sucking in a conveyed medium, and at least one blade (13) that is connected to the cover disk (14) located on the intake side so as to form a single piece therewith and is provided with an inner section (13a) located in the region of the central opening and an outer section (13b) located in the region of the cover disk (14). The aim of the invention is to obtain a high degree of efficiency while keeping the production simple. Said aim is achieved by embodying the impeller (5) in a completely open manner on the pressure side lying opposite the cover disk (14) and by configuring the inner section (13a) of the blade (13) in a three-dimensionally bent manner while configuring the outer section (13b) thereof in an essentially two-dimensionally bent manner.