Rotary vane pump with continuous fiber reinforced polymeric composite vanes less prone to catastrophic failure

Abstract

A rotary paddle pump with sliding vanes and stationary side plates fabricated from a continuous carbon-fiber reinforced polymeric material, particularly polyetheretherketone (PEEK), polyetherketoneketone (PEKK), or polyphenylene sulphides (PPS) material yields characteristics of self-lubrication for dry operation, low wear for long life, and high flexural and tensile strength for superior resistance to foreign object damage. Other parts manufactured from continuous carbon-fiber reinforced polymeric composite may be alternately substituted to provide self-lubrication and low wear on surfaces moving relative to each other.

1 . An improved sliding vane rotary paddle pump having a shroud and a cylindrical rotor, said rotor including a plurality of radial sliding vane slots, comprising: 
 at least two continuous fiber reinforced polymeric composite sliding vanes symmetrically disposed in said radial sliding vane slots to engage said shroud for the pumping of a fluid through said rotary paddle pump, said at least two sliding vanes fabricated from a plurality of layers laminated together of a continuous fiber reinforced polymeric composite material.    
     
     
         2 . The improved sliding vane rotary paddle pump according to  claim 1 , further comprising: 
 said vane slots being canted with respect to a radial line from said rotor, and said pump having a drive shaft;    said drive shaft being integrated with at least one pinion adjacent to said rotor:    
     
     
         3 . The improved sliding vane rotary paddle pump according to  claim 2 , further comprising: 
 shaft bearings fabricated from a plurality of layers laminated together of continuous fiber reinforced polymeric composite material.    
     
     
         4 . The improved sliding vane rotary paddle pump according to  claim 3 , further comprising: 
 a coating selected from the group of self-lubricating synthetic materials including polytetrafluoroethylene on or in at least one of any two adjacent non-polymeric surfaces in relative motion one-to-the-other during operation of said rotary paddle pump.    
     
     
         5 . The improved sliding vane rotary paddle pump according to  claim 1 , further comprising: 
 said vane slots being canted with respect to a radial line from said rotor.    
     
     
         6 . The improved sliding vane rotary paddle pump according to  claim 5 , further comprising: 
 said pump having a drive shaft; and    shaft bearings fabricated from a plurality of layers laminated together of continuous fiber reinforced polymeric composite material.    
     
     
         7 . The improved sliding vane rotary paddle pump according to  claim 6 , further comprising: 
 a coating selected from the group of self-lubricating synthetic materials including polytetrafluoroethylene on or in at least one of any two adjacent non-polymeric surfaces in relative motion one-to-the-other during operation of said rotary paddle pump.    
     
     
         8 . The improved sliding vane rotary paddle pump according to  claim 1 , further comprising: 
 said pump having a drive shaft;    said drive shaft being integrated with at least one pinion adjacent to said rotor.    
     
     
         9 . The improved sliding vane rotary paddle pump according to  claim 8 , further comprising: 
 shaft bearings fabricated from a plurality of layers laminated together of continuous fiber reinforced polymeric composite material.    
     
     
         10 . The improved sliding vane rotary paddle pump according to  claim 9 , further comprising: 
 a coating selected from the group of self-lubricating synthetic materials including polytetrafluoroethylene on or in at least one of any two adjacent non-polymeric surfaces in relative motion one-to-the-other during operation of said rotary paddle pump.    
     
     
         11 . An improved sliding vane rotary paddle pump having a shroud, a cylindrical rotor, said rotor including a plurality of radial sliding vane slots, and two air transfer side plates comprising: 
 at least two continuous fiber reinforced polymeric composite sliding vanes symmetrically disposed in said radial sliding vane slots to engage said shroud for the pumping of a fluid through said rotary paddle pump, said at least two sliding vanes fabricated from a plurality of layers laminated together of a continuous fiber reinforced polymeric composite material; and    a coating selected from the group of self-lubricating synthetic materials including polytetrafluoroethylene on at least one of any two adjacent non-continuous fiber reinforced polymeric composite surfaces in relative motion one-to-the-other during operation of said rotary paddle pump.    
     
     
         12 . The improved sliding vane rotary paddle pump according to  claim 11 , further comprising: 
 said vane slots being canted with respect to a radial line from said rotor.    
     
     
         13 . The improved sliding vane rotary paddle pump according to  claim 12 , further comprising: 
 said pump having a drive shaft;    said drive shaft being integrated with at least one pinion adjacent to said rotor.    
     
     
         14 . The improved sliding vane rotary paddle pump according to  claim 13 , further comprising: 
 shaft bearings fabricated from a plurality of layers laminated together of continuous fiber reinforced polymeric composite material.    
     
     
         15 . An improved sliding vane rotary paddle pump having a shroud, and a cylindrical rotor, said rotor including a plurality of radial sliding vane slots, comprising: 
 at least two continuous fiber reinforced polymeric composite sliding vanes symmetrically disposed in said radial sliding vane slots to engage said shroud for the pumping of a fluid through said rotary paddle pump, said at least two sliding vanes fabricated from a plurality of layers laminated together of a continuous fiber reinforced polymeric composite material; and    air transfer side plates fabricated from a plurality of layers laminated together of a continuous fiber reinforced polymeric composite material at least where said side plates are in contact with said rotor.    
     
     
         16 . The improved sliding vane rotary paddle pump according to  claim 15 , further comprising: 
 said vane slots being canted with respect to a radial line from said rotor.    
     
     
         17 . The improved sliding vane rotary paddle pump according to  claim 16 , further comprising: 
 said pump having a drive shaft;    said drive shaft being integrated with at least one pinion adjacent to said rotor.    
     
     
         18 . The improved sliding vane rotary paddle pump according to  claim 17 , further comprising: 
 a coating selected from the group of self-lubricating synthetic materials including polytetrafluoroethylene on or in at least one of any two adjacent non-polymeric surfaces in relative motion one-to-the-other during operation of said rotary paddle pump.    
     
     
         19 . The improved sliding vane rotary paddle pump according to  claim 15 , further comprising: 
 shaft bearings fabricated from a plurality of layers laminated together of continuous fiber reinforced polymeric composite material.    
     
     
         20 . The improved sliding vane rotary paddle pump according to  claim 19 , further comprising: 
 a coating selected from the group of self-lubricating synthetic materials including polytetrafluoroethylene on or in at least one of any two adjacent non-polymeric surfaces in relative motion one-to-the-other during operation of said rotary paddle pump.    
     
     
         21 . An improved sliding vane rotary pump, having a shroud, and a cylindrical rotor including a plurality of sliding vane slots, comprising: 
 at least two continuous fiber reinforced polymeric composite sliding vanes symmetrically disposed in said radial sliding vane slots to engage said shroud for the pumping of a fluid through said rotary paddle pump, said at least two sliding vanes fabricated from a plurality of layers laminated together of continuous fiber reinforced polymeric composite material;    air transfer side plates fabricated from a plurality of layers laminated together of a continuous fiber reinforced polymeric composite material at least where said side plates are in contact with said rotor;    said pump having a drive shaft;    shaft bearings fabricated from a plurality of layers laminated together of continuous fiber reinforced polymeric composite material.    
     
     
         22 . The improved sliding vane rotary paddle pump according to  claim 21 , further comprising: 
 a coating selected from the group of self-lubricating synthetic materials including polytetrafluoroethylene on or in at least one of any two adjacent non-polymeric surfaces in relative motion one-to-the-other during operation of said rotary paddle pump.    
     
     
         23 . The improved sliding vane rotary paddle pump according to  claim 21 , further comprising: 
 said vane slots being canted with respect to a radial line from said rotor.    
     
     
         24 . The improved sliding vane rotary paddle pump according to  claim 23 , further comprising: 
 a coating selected from the group of self-lubricating synthetic materials including polytetrafluoroethylene on or in at least one of any two adjacent non-polymeric surfaces in relative motion one-to-the-other during operation of said rotary paddle pump.    
     
     
         25 . The improved sliding vane rotary paddle pump according to  claim 21 , further comprising: 
 said drive shaft being integrated with at least one pinion adjacent to said rotor.    
     
     
         26 . The improved sliding vane rotary paddle pump according to  claim 25 , further comprising: 
 a coating selected from the group of self-lubricating synthetic materials including polytetrafluoroethylene on or in at least one of any two adjacent non-polymeric surfaces in relative motion one-to-the-other during operation of said rotary paddle pump.