Patent ID: 7234388
Filing Date: 2007-06-26
Classification: F04B

Abstract:
1. A liner retention system for a reciprocating pump having a piston and a piston rod operating in a cavity of a frame, which system comprises: a cylindrical liner for said piston and said piston rod, said liner having a radially extending external shoulder; a liner clamp plate having a central opening receivable over said liner and a plurality of stud apertures wherein said radially extending external shoulder engages said central opening in said liner clamp plate; a plurality of studs, each said stud extending from a module block and terminating in a threaded end spaced from said module block; at lease one compression sleeve having an inside diameter larger than an external diameter said stud extenders; and a tensioner to secure each said stud to said liner clamp plate and to thereby secure said cylindrical liner to said module block.