Vane pump with a concentric rotor, in particular for non Newtonian fluids.

摘要

"With concentric rotor vane pump, in particular for non Newtonian fluids. The pump vane, in the state of the art, does not apply to non Newtonian fluid pumping, especially fluids with suspended solids, in particular, the abrasive fluids, such as: the masses of ceramics; masses of cement and concrete; ore pulp and others.In the present invention describe a vane pump (Figure 1) concentric with the rotor (1.1), the shirt cylindrical carcass, and as an element for sealing between the pressure chambers and suction, the mechanical seal (Figure 2). The mechanism consists of a sliding vane (2.1), pressed by springs (2.2) against the rotor concentric with the seal of the suction chamber with the pressure chamber.The displacement of the vanes (Figure 3), which is extracted by compression springs (3.1), transverse, and retracted by side flaps of the vanes inserted into an eccentric cam asymmetrical, located in the lateral flanges (Figure 4) fence. The use of thermoplastics of high Abrasion resistance to the vanes is possible due to the dimension for the low rotation work.The new technology also allows the application inverse, as drivers of high torque, and in particular, such as positive displacement turbine for electric power generation, low speed and high efficiency.