公开(公告)号：US20220282719A1

公开(公告)日：2022-09-08

申请号：US17680241

申请日：2022-02-24

申请人： Caterpillar Inc.

发明人： James Anthony Barnhouse

IPC分类号： F04B19/22 ,  F04B53/16

摘要： A reciprocating pump includes a fluid end having a body defining a plunger bore that engages a plunger sleeve with a threaded interface, where the plunger sleeve defines throughbore configured to receive a plunger operatively reciprocating within the plunger bore during operation of the reciprocating pump. A packing assembly including a plurality of stacked annular seals is disposed between the plunger sleeve and the plunger. A packing nut having a threaded profile for engagement with a threaded surface of the plunger bore asserts a load against the packing assembly to ensure a positive engagement with the plunger.

公开(公告)号：US11965497B2

公开(公告)日：2024-04-23

申请号：US17680241

申请日：2022-02-24

申请人： Caterpillar Inc.

发明人： James Anthony Barnhouse

IPC分类号： F04B19/22 ,  B25B13/48 ,  B25B13/50 ,  B25B27/14 ,  F04B1/0538 ,  F04B53/00 ,  F04B53/02 ,  F04B53/16 ,  F04B53/22

CPC分类号： F04B19/22 ,  F04B53/16 ,  F04B53/164 ,  F04B53/168 ,  B25B13/481 ,  B25B13/50 ,  B25B27/14 ,  F04B1/0538 ,  F04B53/007 ,  F04B53/008 ,  F04B53/02 ,  F04B53/166 ,  F04B53/22

摘要： A reciprocating pump includes a fluid end having a body defining a plunger bore that engages a plunger sleeve with a threaded interface, where the plunger sleeve defines throughbore configured to receive a plunger operatively reciprocating within the plunger bore during operation of the reciprocating pump. A packing assembly including a plurality of stacked annular seals is disposed between the plunger sleeve and the plunger. A packing nut having a threaded profile for engagement with a threaded surface of the plunger bore asserts a load against the packing assembly to ensure a positive engagement with the plunger.