Rotary pump with rotor bearing ring
AssigneeThe Bricks Groupe, LLC
InventorCarl Magnus Danielsson
Life of this patent
Estimating the term…
Abstract
Lobe pumps have rings 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. Some rotors may have voids in ears to make the rotor lighter in weight with the voids potentially capped, symmetrically disposed, arcuately shaped and/or have other desirable features. Some rotors may have ears extending beyond cutouts which may extend beyond hubs, if not beyond hub extensions as well which may receive cover spigots thereabout. Some rings may act as radial bearings as well when located in the cover spigots.
Claims20
A rotary lobe pump comprising:
- a rotor housing assisting defining a cavity intermediate side walls, an end wall and a cover plate;
- parallel first and second shafts extend into the cavity from the end wall;
- an inlet port and an outlet port communicating with the cavity;
- first and second rotors connected to the first and second shafts, respectively;
- each of the first and second rotors having ears with faces directed toward the cover plate connected to a central hub with the hub connected to the respective first and second shaft;
- and
- first rings intermediate each of the first and second rotors and the cover plate located at least partially in a first ring groove circumnavigating one of the cover plate and rotor, said first rings providing at least a thrust bearing spacing the faces of the first and second rotors from the cover plate.
A rotary lobe pump comprising:
- a rotor housing assisting defining a cavity intermediate side walls, an end wall and a cover plate;
- parallel first and second shafts extend into the cavity from the end wall;
- an inlet port and an outlet port communicating with the cavity;
- first and second rotors connected to the first and second shafts, respectively;
- each of the first and second rotors having ears with faces directed toward the cover plate connected to a central hub with the hub connected to the respective first and second shaft;
- and
- voids in the ears of the shafts extending from a face of the ear at least ⅓ of a depth of the ears.
Dependencies are inferred from the claim text.