INTEGRATED RECIPROCATING PRIMER DRIVE ARRANGEMENT

摘要

A pump assembly includes a centrifugal pump having an intake, a discharge, a pump chamber and an impeller to deliver water from the intake to the discharge. A priming system is fluidly coupled to the pump chamber. A drive assembly includes a drive shaft coupled to the priming system and positioned around an impeller shaft coupled to the impeller for selective rotatable coupling of the impeller shaft and the drive shaft.