11 results about "Lobe pump" patented technology

Lobe pumps have bearing discs or caps which can be located at least partially in at least one of cover plates and rotors, if not both to provide at least thrust bearings to space the rotors from the cover plates while facilitating the possibility of clean in place operations. Many embodiments have bearing discs on the rotors which do not restrict axial movement on the shaft, but prevent pumped material from contacting the shaft, and many embodiments have bearing discs friction fit in bearing cutouts and bores (through the rotor and / or cover plate) to facilitate removal when disassembled.

Dosing machine (1) for processing a dough or a mass (3), wherein the dosing machine (1) has a rotary piston pump (2), by means of which the dough or the mass (3) can be conveyed from a feed area (4) of the dosing machine (1) to a dosing area (5) of the dosing machine (1), and wherein at least one dosing opening (6) is arranged in the dosing area (5), through which the dough or the mass (3) can be led out of the dosing machine (1), characterized in that a first pair of rotary pistons (8) and a second pair of rotary pistons (9) are arranged in a pump chamber (7) of the rotary piston pump (2), wherein each pair of rotary pistons (8, 9) has a first rotary piston (10a, 10b) and a second rotary piston (11a, 11b), wherein the first rotary pistons (10a, 10b) of the rotary piston pump (2) are arranged on a first piston shaft (12). and when the dosing machine (1) is used as intended, rotate around a first rotation axis (13), wherein the second rotary pistons (11a,11b) are arranged on a second piston shaft (14) and, when the dosing machine (1) is used as intended, rotate about a second axis of rotation (15), wherein the first rotary pistons (10a, 10b) of a pump chamber (7) are rotated relative to one another about the first axis of rotation (13) by an angle of rotation (16), and wherein the second rotary pistons (11a, 11b) of a pump chamber (7) are rotated relative to one another about the second axis of rotation (15) by the angle of rotation (16).

Method for reducing exposure to vapors and / or dusts from equipment (1) for vacuum-based coating processes, wherein an operating vacuum is generated in the equipment (1), wherein the equipment (1) has a first, second and third vacuum chamber (2, 2', 2"), wherein the vacuum chambers (2, 2', 2") are connected in series, wherein the second vacuum chamber (2') is arranged between the first and third vacuum chambers (2, 2") and is designed as a process chamber, wherein - in a first process step of the apparatus (1) a gas is supplied, wherein - in a second process step the gas is removed from the second vacuum chamber (2'), whereby - in a third process step, the gas removed from the second vacuum chamber (2') is purified and made available again for feeding into the first and third vacuum chambers (2, 2"), wherein the first process step, the second process step and the third process step are carried out cyclically one after the other, characterized in that at least one rotary lobe pump (7) is used for the first and second process steps, which removes the gas from the second vacuum chamber (2') and supplies it to the first and third vacuum chambers (2, 2").

A self-propelled vehicle for the removal of sediments, in particular in hazardous areas, comprises a machine body, a moving device constrained to the machine body and configured to move the self-propelled vehicle; a remote-control system connected to the moving device to remotely control the movement of the self-propelled vehicle; a pumping device mounted on the machine body and configured to draw in sediments through a suction line and pump them away from the self-propelled vehicle through a delivery line; the pumping device comprises a lobe pump.

The invention relates to a stator for a pump, in particular for a rotary lobe pump or a progressive cavity pump, comprising a base body, wherein the base body surrounds a pump chamber for a rotor assembly of the pump, has a support body and a running body, and the running body forms a running surface for at least partial contact with the rotor assembly of the pump, wherein the support body and the running body are made of a common material and the material density of the material of the support body and the material density of the material of the running body are set differently from one another, such that different elasticity and / or different hardness of the material in the support body and in the running body is achieved by means of the different material densities. The invention further relates to a method for manufacturing such a stator.

The utility model provides a lobe pump, relates to lobe pump technical field, including pump body and end cover, the end cover is provided at the both ends of pump body, the inside of pump body is provided with the shaft body, and the upper end of shaft body passes through the end cover, the outside of shaft body and end cover is provided with the end cover bushing, and the top of end cover bushing is provided with the oil flinger, and the oil flinger is provided with the oil flinger. The oil flinger surrounds the outer side of the shaft body; a groove is formed in the top of the end cover bushing, a first sealing ring is filled in the groove, and the oil flinger is pressed above the first sealing ring; the groove is additionally formed in the face, adjacent to the oil flinger, of the end cover lining, the first sealing ring is placed in the groove, the elastic O-shaped ring is placed below the first sealing ring, the oil flinger is used for limiting the first sealing ring in the groove, and under the condition that the first sealing ring is abraded, the first sealing ring is sealed by the elastic O-shaped ring through the elasticity enhancing property of the elastic O-shaped ring. The first sealing ring and the oil flinger are always kept sealed, and lubricating oil is prevented from entering the pump body.

Method for manufacturing a stator and stator (105, 106, 205) for a pump (101, 201), in particular for a rotary lobe pump (101) or a progressive cavity pump (201), with a base body (321, 323, 325, 421, 423, 425, 427), wherein the base body (321, 323, 325, 421, 423, 425, 427) surrounds a pump chamber (111, 213) for a rotor arrangement (121, 123, 273) of the pump (101, 201), has a support body (321, 323, 421, 423) and a running body (325, 425), and the running body (325, 425) has a running surface for at least partial forms contact with the rotor assembly of the pump (101, 201), wherein the support body (321, 323, 421, 423) and the impeller body (325, 425) have a common material and the material density of the material of the support body (321, 323, 421, 423) and the material density of the material of the impeller body (325, 425) are set differently from each other.so that, by means of the differently set material densities, a different elasticity and / or a different hardness of the material is achieved in the support body (321, 323, 421, 423) and in the running body (325, 425).

The invention belongs to the sector of combating endemic diseases. It is an insecticide aerosol nebulizer on platform for pickup trucks. It has means of selecting and / or nebulizing adulticides, larvicides or cleaning. The nebulizer comprises an autonomous set of air flow (1) comprised of a combustion engine (11) of low power with a fuel tank (12) that activates a blower (13) (lobe pump) for atomization of the insecticide in the atomization nozzle (2); multiple set of reservoirs (3) comprised of larvicide reservoir (31); adulticide (32) and cleaning fluid (33) mounted in housing (34); hydraulic circuit (5) comprising larvicide / cleaning directional valve (V1); adulticide / cleaning (V2); electric pump (51) diaphragm; larvicide shut-off / release valve (V3); adulticide (V4); return (V5); flow control (V6); output directional (V7); junction (52) and duct (53). Stirring (6) comprises directional stirring valve (61); tube (62); lid (63) and relief (64).

To provide a stator for a pump improved over the prior art.SOLUTION: A stator for a pump, in particular for a rotary lobe pump or an eccentric screw pump, comprises a base body, which surrounds a pump chamber for a rotor assembly of the pump. The base body includes a support body and a running body. The running body forms a running surface for at least partial contact with the rotor assembly of the pump. The support body and the running body have a common material. A material density of the material of the support body and a material density of the material of the running body are adjusted to be different from one another. The material densities adjusted to be different achieve different elasticity and / or hardness of the material in the support body and the running body. The invention further relates to a method for producing such a stator.SELECTED DRAWING: Figure 3

The invention relates to a rotary lobe pump comprising a pump chamber with a pump inlet opening and a pump outlet opening and a first pump rotary lobe rotatably mounted within the pump chamber, a drive chamber with a drive inlet opening, a drive outlet opening and a first drive rotary lobe rotatably mounted within the drive chamber, characterized by a first pump drive shaft rotatably mounted about a first shaft axis, on which the first pump rotary lobe and the first drive rotary lobe are torque-resistant attached, and a housing sealed against the environment, within which the pump chamber and the drive chamber are arranged and the first pump drive shaft is arranged and mounted.

Lobe pumps have bearing discs or caps which can be located at least partially in at least one of cover plates and rotors, if not both to provide at least thrust bearings to space the rotors from the cover plates while facilitating the possibility of clean in place operations. Many embodiments have bearing discs on the rotors which do not restrict axial movement on the shaft, but prevent pumped material from contacting the shaft, and many embodiments have bearing discs friction fit in bearing cutouts and bores (through the rotor and / or cover plate) to facilitate removal when disassembled.