Patent ID: 11965497
Assignee: CATERPILLAR INC.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  B | IPC B  F

Claim 14:
15. A plunger sleeve assembly for a reciprocating pump, comprising: a tubular sleeve for installation within a plunger bore of a fluid cylinder of the reciprocating pump, the tubular sleeve having a throughbore configured to receive a plunger; the tubular sleeve having a first threaded profile disposed on an outer surface thereof for engagement with a first threaded surface of the plunger bore; and a first end face of the tubular sleeve having a tool engaging contour with a plurality of installation indentations located at an intersection of the first end face and a circumferential external surface of the tubular sleeve, the tool engaging contour configured for engagement with a corresponding circumferential contour of an installation tool, the installation tool operable to rotate the tubular sleeve to advance along the first threaded surface of the plunger bore; and a packing nut having a second threaded profile for engagement with a second threaded surface of the plunger bore, wherein the packing nut, when installed in the fluid cylinder, is configured to apply an axial load against a packing assembly to cause positive engagement of the packing assembly with the plunger.