Patent ID: 9273682
Filing Date: 2016-03-01
CPC Classification: F04B,F05C,F16J,Y10T

Claim Text:
1. A method for assembling and operating a pump, the method comprising: providing a plunger that includes an ion-doped material having an electropositive outer surface; providing a seal that includes a polymeric material having an electropositive inner surface; operably positioning the plunger within the seal such that the electropositive outer surface of the ion-doped material slidably contacts the electropositive inner surface of the polymeric material, wherein operably positioning the plunger within the seal includes operably assembling at least a portion of a compression assembly of the pump; moving the plunger relative to the seal to pressurize a polar liquid to a pressure greater than 30,000 psi; hydrogen bonding molecules of the polar liquid to the electropositive outer surface of the ion-doped material while moving the plunger; and hydrogen bonding molecules of the polar liquid to the electropositive inner surface of the polymeric material while moving the plunger, wherein molecules of the polar liquid hydrogen bonded to the electropositive outer surface of the ion-doped material of the plunger interact with molecules of the polar liquid hydrogen bonded to the electropositive inner surface of the polymeric material to reduce friction between the plunger and the seal and thereby increase a service life of the seal.