公开(公告)号：US20210017983A1

公开(公告)日：2021-01-21

申请号：US17043541

申请日：2019-04-02

Applicant: S.P.M. Flow Control, Inc.

Inventor： Jeff MYERS ,  Justin Rand CUMMINGS ,  Tanner Craig FORD

IPC: F04B53/16 ,  F04B1/053

Abstract: A fluid cylinder for a fluid end section of a reciprocating pump includes a body having a pressure chamber and a plunger bore that fluidly communicates with the pressure chamber. The plunger bore includes a packing segment configured to hold packing. The fluid cylinder includes a sleeve received within the packing segment of the plunger bore. The sleeve is configured to hold a plunger within an internal passage of the sleeve such that the plunger is configured to reciprocate within the plunger bore during operation of the reciprocating pump. The fluid cylinder includes a retention mechanism secured within the plunger bore such that the retention mechanism is configured to retain the sleeve within the packing segment of the plunger bore.