Abstract: Embodiments provide a rotary lobe pump for conveying a fluid medium containing solids. Two rotary lobes have rotational axes that are spaced apart from each other a minimum length distance. A housing enclosing the two rotary lobes has an inlet opening and an outlet opening, each with a continuously decreasing convergence and defined lengths.

Abstract: The invention relates to a rotary lobe pump including a pump housing with a pump chamber, an inlet opening and an outlet opening. A first multi-lobed rotary piston is rotably mounted around a first axis in the pump chamber. A second multi-lobed rotary piston is rotably mounted around a second axis in the pump chamber and meshes with the first rotary piston. The first and second rotary pistons are rotated by a drive unit to create a fluid flow from the inlet opening to the outlet opening. The drive unit includes a first electric drive motor mechanically coupled with the first rotary piston and a second electric drive motor mechanically coupled with the second rotary piston.

Abstract: The invention relates to a rotary lobe pump for conveying a fluid medium containing solids, comprising an inlet and an outlet for the medium being conveyed, and further comprising a pump casing and two rotary lobes arranged in said pump casing and having intermeshing rotary lobe vanes. According to the invention, the pump casing has two opposite casing half-shells which seal the pump casing fluid-tightly. The casing half-shells are double-walled.

Abstract: The invention concerns apparatuses (1) for distributing mixed fluid or bulk material on to agricultural productive surfaces (100) comprising a distribution device (5) which has at least one fluid inlet (3) which can be connected to a mixed fluid supply and a plurality of outlets (7). The apparatus has a plurality of conduits (11) connected to the outlets, wherein the conduits (11) have a respective connecting portion (35b) for coupling to an application device (9), wherein an outlet (7) and the conduit (11) connected to the fluid outlet define a respective flow path. In particular the apparatuses have a device (15) for blockage detection in individual ones of, a plurality of or all flow paths, that has a plurality of sensors (21), and an electronic evaluation unit (17) which is adapted to receive the measurement signals output by the sensors (21), compare them to each other and on the basis of signal deviations determined in that case to identify individual ones of or a plurality of flow paths as blocked.

Abstract: The invention relates to a suction device (1) for removing a mixed fluid, in particular fecal matter, from a collecting tank (2), in particular from a sewage tank of a railway vehicle, comprising a mixed fluid inlet (4) for receiving the mixed fluid, said mixed fluid inlet (4) being fluidically connectable to a connection port of said collecting tank (2), a mixed fluid outlet (8) for discharging the mixed fluid, said mixed fluid outlet (8) being fluidically connectable to a suction line, and a flow channel (14) extending between said inlet and said outlet. The invention relates in particular to a constriction member (10) which is adapted to reduce a cross-section of the flow channel (14) in sections thereof or along the entire length thereof. The invention further relates to a suction station for removing a mixed fluid, and to such a method.

Abstract: The invention relates to an apparatus for sealing a pump chamber of a rotary lobe pump vis-a-vis a fluid-free region of the rotary lobe pump, in particular in the region of a shaft duct, wherein the apparatus has two or more sealing elements, which can be disposed adjacent to a front side of a rotary piston disposed on a shaft in the pump chamber of the rotary lobe pump in such a way that a labyrinth gap extends between the sealing elements, said labyrinth gap being arranged in a radial direction relative to the shaft and in an axial direction in order to extend the seal land. According to the invention, the seal land is larger in a radial direction relative to the shaft than the seal land in an axial direction relative to the shaft.

Abstract: An eccentric screw pump, comprising a rotor that extends along a longitudinal axis of the rotor from a drive end to a free end, a stator housing with an internal cavity that extends along the longitudinal axis from a stator inlet opening to a stator outlet opening and that is designed to accommodate the rotor, a drive motor with a drive shaft that is coupled with the rotor to transmit a torque, a first cardan joint which is placed within the transmission of the torque between the drive shaft and the rotor, and a stator outlet flange that is arranged in flow direction behind the rotor. The stator outlet flange comprises a flange connection plane that is oriented non-vertically to the longitudinal axis.

Abstract: The invention relates to a rotary piston pump comprising a pump housing with a pump chamber, an inlet and an outlet opening, a first multi-lobed rotary piston arranged in the pump chamber and rotatably mounted around a first axis and a second multi-lobed rotary piston arranged in the pump chamber which is rotatably mounted around a second axis spaced apart from the first axis and meshes with the first rotary piston, wherein the first and second rotary pistons, by rotating around the first and the second axis respectively, create a fluid flow from the inlet to the outlet opening, a drive unit which is mechanically coupled with the rotary pistons in order to drive the rotary pistons. According to the invention, the drive unit comprises a first electric drive motor, which is mechanically coupled with the first rotary piston for driving the first rotary piston, and a second electric drive motor, which is mechanically coupled with the second rotary piston for driving the second rotary piston.

Abstract: The invention relates to a rotary lobe pump (100) for conveying a fluid medium containing solids, comprising an inlet opening (111) and an outlet opening (112) for the medium being conveyed, two rotary lobes (121, 122) arranged in a pump casing (140) and having rotary lobe vanes engaging with other, wherein each of the two rotary lobes is fixed torque-resistantly on a respective shaft (131) and can be driven by said respective shaft, and wherein the two shafts are coupled to each other by a transmission gear arranged in a gearbox casing (152). The invention relates in particular to a rotary lobe pump in which the inlet opening and the outlet opening are arranged on a connection casing (151).

Abstract: The invention relates to a distributing device for liquids, particularly for solids-containing liquids, comprising: a distribution chamber with an inlet opening that leads to a chamber interior space of the distribution chamber, a first perforated blade disc with several outlet openings that connect the chamber interior space to several connection ports, and a blade drive shaft that is swivel-mounted about a drive shaft axis. According to the invention, a first eccentric member, which is connected to the blade drive shaft and defines a first eccentric axis lying at a distance to the drive shaft axis, and a first cutting blade are provided, which first cutting blade is connected to the first eccentric member and has a cutting edge that rests against the first perforated blade disc and can be moved relative to the first perforated blade disc by means of the first eccentric member.

Abstract: The invention relates to a rotary lobe pump for conveying solids-laden fluids engendered in agriculture, in which the conveyed fluid volume flow adapts itself to different operating modes. For improved self-priming, the rotary lobe pump is designed for vertical mounting of the rotary lobes, wherein an angular gear is provided. The rotary lobes are mounted in a topside or underside cover, wherein the axes of the rotary lobes are vertically oriented. Using one of the covers, the rotary lobes can be vertically removed and maintained without having to dismantle other pump components from the pump housing. The rotary lobes can also be removed together with the angular gear as an integral pump component using one of the covers.

Abstract: The invention relates to an apparatus for sealing a pump chamber of a rotary lobe pump vis-a-vis a fluid-free region of the rotary lobe pump, in particular in the region of a shaft duct, wherein the apparatus has two or more sealing elements, which can be disposed adjacent to a front side of a rotary piston disposed on a shaft in the pump chamber of the rotary lobe pump in such a way that a labyrinth gap extends between the sealing elements, said labyrinth gap being arranged in a radial direction relative to the shaft and in an axial direction in order to extend the seal land. According to the invention, the seal land is larger in a radial direction relative to the shaft than the seal land in an axial direction relative to the shaft.

Abstract: The invention relates to a suction device (1) for removing a mixed fluid, in particular fecal matter, from a collecting tank (2), in particular from a sewage tank of a railway vehicle, comprising a mixed fluid inlet (4) for receiving the mixed fluid, said mixed fluid inlet (4) being fluidically connectable to a connection port of said collecting tank (2), a mixed fluid outlet (8) for discharging the mixed fluid, said mixed fluid outlet (8) being fluidically connectable to a suction line, and a flow channel (14) extending between said inlet and said outlet. The invention relates in particular to a constriction member (10) which is adapted to reduce a cross-section of the flow channel (14) in sections thereof or along the entire length thereof. The invention further relates to a suction station for removing a mixed fluid, and to such a method.

Abstract: The invention relates to a rotary lobe pump for conveying a fluid medium containing solids, comprising an inlet and an outlet for the medium being conveyed, and further comprising a pump casing and two rotary lobes arranged in said pump casing and having intermeshing rotary lobe vanes. According to the invention, the pump casing has two opposite casing half-shells which seal the pump casing fluid-tightly. The casing half-shells are double-walled.

Abstract: The invention relates to a rotary lobe pump (10) for conveying fluids, in particular liquids laden with solid matter, comprising a casing (45) and at least one pair of intermeshing rotary lobes (1) arranged inside the casing (45), each rotary lobe (1) having at least one recess (13, 43) formed on the circumferential surface (5) thereof and/or at least one recess (41) formed on an end surface (7, 9) thereof. The invention relates to in particular a rotary lobe pump, in which at least one trap member (15, 17, 39, 51) is arranged in at least one recess (13, 41, 43) and is adapted to capture solid matter. The invention also relates to a rotary lobe (1) for a rotary lobe pump (10) for conveying fluids, in particular liquids laden with solid matter, said rotary lobe having at least one recess (13, 43) formed on the circumferential surface (5) thereof and/or at least one recess (41) formed on an end surface (7, 9) thereof.

Abstract: The invention relates to a rotary lobe pump (100) for conveying a fluid medium containing solids, comprising an inlet opening (111) and an outlet opening (112) for the medium being conveyed, two rotary lobes (121, 122) arranged in a pump casing (140) and having rotary lobe vanes engaging with other, wherein each of the two rotary lobes is fixed torque-resistantly on a respective shaft (131) and can be driven by said respective shaft, and wherein the two shafts are coupled to each other by a transmission gear arranged in a gearbox casing (152). The invention relates in particular to a rotary lobe pump in which the inlet opening and the outlet opening are arranged on a connection casing (151).

Abstract: The invention relates to a rotary lobe pump for conveying a fluid medium containing solids, said rotary lobe pump comprising two rotary lobes each having rotary lobe vanes engaging with other and each having a rotational axis and an outer periphery, wherein the rotational axes of the two rotary lobes are spaced apart from each other and arranged parallel to each other and wherein the outer peripheries of the two rotary lobes partially intersect each other, and further comprising a housing with an inlet opening and an outlet opening and an inner wall and an outer wall, the inner wall of the housing enclosing a respective section of the outer peripheries of the rotary lobes and wherein the rotary lobe pump is adapted to convey the medium in a feeding direction from the inlet opening to the outlet opening.

Abstract: The invention relates to a rotary lobe pump for conveying solids-laden fluids engendered in agriculture, in which the conveyed fluid volume flow adapts itself to different operating modes. For improved self-priming, the rotary lobe pump is preferably designed for vertical mounting of the rotary lobes, wherein an angular gear is provided. The rotary lobes are mounted in a topside or underside cover, wherein the axes of the rotary lobes are vertically oriented. Using one of the covers, the rotary lobes can be vertically removed and maintained without having to dismantle other pump components from the pump housing. The rotary lobes can also be removed together with the angular gear as an integral pump component using one of the covers.