Patent ID: 6921242

Claim:
A slurry pump having improved erosion characteristics, said pump comprising: a rotatable impeller having at least one impeller vane, and an impeller shroud, having an inlet for conveying slurry to the impeller and an outlet for discharging slurry accelerated by the impeller; a pump housing having a side wall with a pump housing recess therein, said recess being deep enough to therein receive said impeller shroud so that an impeller shroud outlet wall and the pump housing side wall are approximately parallel to each other so as to produce a sufficient impingement angle between the impeller shroud outlet and the pump housing side wall to substantially reduce erosion thereon by the accelerated slurry; and a suction liner positioned at the inlet abutting said pump housing and having a side wall including a suction liner recess forming a continuous recess with the pump housing recess.