4 results about "Lobe pump" patented technology

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 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).

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.