Turbine pump with boundary layer blade inserts
OwnerRobert S. Cafarelliinventor
Life of this patent
Estimating the term…
Abstract
The instant invention is a self-adjusting blade insert used for improving the efficiency of low rotating disc pumps by use of pivotal disc inserts disposed between the rotating discs of a multi-disc pump turbine style pump causing a positive displacement of fluid during the low rotating conditions or low viscosity fluid environment. The blade inserts of the instant invention include a biasing spring which allows the blade inserts to pivot outward when sufficient hydraulic pressure creates force against a lower surface of the blade inserts allowing maximum flow at higher rotations or predetermined operating conditions.
Claims7
An improved turbine style pump having a casing with a centrally disposed inlet port and peripherally disposed outlet port having a plurality of spaced apart discs with a diameter between which a fluid may flow in natural spirals by reliance upon adhesive and viscous action of said discs when rotated by a motor means wherein the improvement comprises:
- a plurality of triangularly shaped blade inserts juxtapositioned between said spaced apart disc surfaces, said blade inserts including a frontal surface for directing fluid to said outlet port, and a compressible spring biasing said frontal surface of said blade inserts against fluid flow.
An improved turbine style pump having a casing with a centrally disposed inlet port and peripherally disposed outlet port having a plurality of spaced apart discs with a diameter between which a fluid may flow in natural spirals by reliance upon adhesive and viscous action of said spaced apart discs when rotated by a motor means wherein the improvement comprises:
- a plurality of pivotally disposed triangularly shaped blade inserts juxtapositioned between said spaced apart disc surfaces, said blade inserts including a frontal surface for directing fluid to said outlet port and a substantially flat surface extending from said pivot to said frontal surface providing a surface receptive to a centrifugal force of fluid providing lift to said blade inserts;
- and a means for biasing said blade inserts toward the interstitial regions between said spaced apart disc surfaces.
Dependencies are inferred from the claim text.