公开(公告)号：US11952986B2

公开(公告)日：2024-04-09

申请号：US17987960

申请日：2022-11-16

申请人： Kerr Machine Co.

发明人： Mark S. Nowell ,  Kelcy Jake Foster ,  Micheal Cole Thomas ,  Christopher Todd Barnett ,  Guy J. Lapointe ,  Brandon Scott Ayres

IPC分类号： F04B1/0408 ,  E21B43/12 ,  F04B39/00 ,  F04B39/10

CPC分类号： F04B1/0408 ,  E21B43/129 ,  F04B39/0005 ,  F04B39/10

摘要： A fluid end for use with a power end. The fluid end comprises a plurality of fluid end sections positioned adjacent one another. Each section includes a single horizontally positioned bore. A plunger is installed within the bore and includes a fluid passageway. Low-pressure fluid enters the bore through the plunger and high-pressure fluid exits the fluid end through an outlet valve installed within the bore. The intake of low-pressure fluid within the fluid end section is regulated by an inlet valve installed within the plunger. Low-pressure fluid enters the plunger through an inlet component attached to both the plunger and an inlet manifold.

公开(公告)号：US11939941B2

公开(公告)日：2024-03-26

申请号：US17703170

申请日：2022-03-24

申请人： DELPHI TECHNOLOGIES IP LIMITED

发明人： Joseph G. Spakowski

IPC分类号： F02M59/02 ,  F02M59/10 ,  F04B1/0439 ,  F04B19/22 ,  F04B53/04 ,  F04B53/16 ,  F04B1/0408 ,  F04B1/0421 ,  F04B11/00

CPC分类号： F02M59/025 ,  F02M59/102 ,  F04B1/0439 ,  F04B19/22 ,  F04B53/04 ,  F04B53/168 ,  F04B1/0408 ,  F04B1/0421 ,  F04B11/0033

摘要： An improved high-pressure fuel pump for a gasoline direct injection system is provided. The fuel pump includes a pump body defining a low-pressure side, a high-pressure side, and a pumping chamber therebetween. The pump body also defines a central bore and a drain port extending from the central bore to the low-pressure side. A slip-fit sleeve is clamped within the central bore, the slip-fit sleeve including upper and lower guide ribs. A plunger is moveable within the sleeve for compressing fuel within the pumping chamber. The plunger and the sleeve define a first diametral clearance, and the guide ribs and the central bore define a second diametral clearance. Fuel diverting around the upper guide rib during pumping operations can recirculate through the drain port to the low-pressure side. To accommodate thermal expansion of the sleeve, the second diametral clearance is at least 75% of the first diametral clearance.

公开(公告)号：US20230383746A1

公开(公告)日：2023-11-30

申请号：US18232025

申请日：2023-08-09

申请人： Graco Minnesota Inc.

发明人： Jeromy D. Horning ,  Steve J. Wrobel

IPC分类号： F04B53/14 ,  F04B1/0408 ,  F04B19/22 ,  F16J7/00

CPC分类号： F04B53/146 ,  F04B53/147 ,  F16J7/00 ,  F04B19/22 ,  F04B1/0408

摘要： A piston includes a piston cap and a piston rod with the piston cap being removable from the piston rod body. The piston cap includes a cap body and a socket extending into the cap body. A mounting portion of the piston rod body extends into the socket of the cap body to connect the piston rod body to the piston cap. A wear sleeve is mounted on the piston rod.

公开(公告)号：US11592011B2

公开(公告)日：2023-02-28

申请号：US17692420

申请日：2022-03-11

申请人： Kerr Machine Co.

发明人： Mark S. Nowell ,  Kelcy Jake Foster ,  Micheal Cole Thomas ,  Christopher Todd Barnett ,  Guy J. Lapointe ,  Brandon Scott Ayres

IPC分类号： F04B1/0408 ,  F04B39/10 ,  F04B39/00 ,  F04B53/14 ,  F04B23/06 ,  E21B43/12 ,  E21B43/26

摘要： A fluid end for use with a power end. The fluid end comprises a plurality of fluid end sections positioned adjacent one another. Each section includes a single horizontally positioned bore. A plunger is installed within the bore and includes a fluid passageway. Low-pressure fluid enters the bore through the plunger and high-pressure fluid exits the fluid end through an outlet valve installed within the bore. The intake of low-pressure fluid within the fluid end section is regulated by an inlet valve installed within the plunger. Low-pressure fluid enters the plunger through an inlet component attached to both the plunger and an inlet manifold.

公开(公告)号：US20230042317A1

公开(公告)日：2023-02-09

申请号：US17880611

申请日：2022-08-03

申请人： HUAQIAO UNIVERSITY

发明人： Tong GUO ,  Tao LUO ,  Tianliang LIN ,  Qihuai CHEN ,  Haoling REN ,  Cheng MIAO ,  Shengjie FU

IPC分类号： F04B1/0465 ,  F04B1/0408 ,  F04B53/16

摘要： A radial piston hydraulic device distributed by pilot operated check valves includes a housing, a plurality of piston assemblies, a main shaft, the rotating shaft, first pilot operated check valves having a same number with the plurality of piston assemblies and one-to-one corresponding to the plurality of piston assemblies, and second pilot operated check valves having a same number with the plurality of piston assemblies and one-to-one corresponding to the plurality of piston assemblies. The housing includes a plurality of piston chambers, a rotating shaft chamber, a high-pressure oil passage, and a low-pressure oil passage. Each of the plurality of piston assemblies is slidable up and down in a corresponding piston chamber of the plurality of piston chambers. The main shaft is rotatably connected to the housing and is connected to the plurality of piston assemblies in a transmission way.

公开(公告)号：US11536267B2

公开(公告)日：2022-12-27

申请号：US17215155

申请日：2021-03-29

申请人： Kerr Machine Co.

发明人： Mark S. Nowell ,  Kelcy Jake Foster ,  Christopher Todd Barnett ,  Micheal Cole Thomas ,  Brandon Scott Ayres ,  Michael Eugene May ,  Guy J. Lapointe

IPC分类号： F04B53/22 ,  F04B53/16 ,  F04B1/122 ,  F04B1/16 ,  F04B1/145 ,  F16B35/00 ,  F16B39/24 ,  F16B43/00 ,  F04B1/18 ,  F04B1/0408 ,  F04B1/0421 ,  F04B1/0461 ,  F04B1/0538 ,  F04B1/0448

摘要： A fluid end having its fluid flow bores sealed without threading a retaining nut into the walls of each bore. The fluid ends may be assembled using a plurality of different kits, each kit comprising a fluid end body, a component, a retainer element, and a fastening system. The retainer element holds the component within each of the bores formed in the fluid end body and the fastening system secures the retainer element to the body. The fastening system comprises a plurality of externally threaded studs, washers and nuts in some embodiments. In other embodiments, the fastening system comprises a plurality of screws.

公开(公告)号：US20220154704A1

公开(公告)日：2022-05-19

申请号：US17577941

申请日：2022-01-18

申请人： Halliburton Energy Services, Inc.

发明人： Joseph A. BEISEL ,  Justin Lee HURST ,  Dick C. HEADRICK ,  James Alan OLIS

IPC分类号： F04B1/0408 ,  F04B1/0448 ,  F04B1/0461 ,  F04B1/053 ,  F04B15/02 ,  F04B23/06 ,  F04B47/02 ,  F04B53/00 ,  F04B53/10 ,  F04B53/12 ,  F04B53/14 ,  F04B53/16 ,  F04B53/22

摘要： A pump comprising a bore pump fluid end having a reciprocating element bore, a discharge valve assembly comprising a discharge valve seat and a discharge valve body, and a suction valve assembly comprising a suction valve seat and a suction valve body; a hollow, cylindrical reciprocating element; a hollow reciprocating element adapter comprising a first end having a fluid inlet opposite a second end having a fluid outlet, wherein the second end of the reciprocating element adapter is connected to and in fluid communication with the fluid intake end of the reciprocating element; a pump power end having a push rod connected to the first end of the reciprocating element adapter; and a movable manifold comprising a reciprocating element end and a fluid intake end, wherein the reciprocating element end of the movable manifold is connected to and in fluid communication with the fluid inlet of the reciprocating element adapter.

公开(公告)号：US20220145867A1

公开(公告)日：2022-05-12

申请号：US17431927

申请日：2020-02-19

申请人： Syntegon Technology GmbH

发明人： Johannes Baeuerle

IPC分类号： F04B1/0408 ,  B65B3/00 ,  B65B3/32 ,  F16K15/14

摘要： The present invention relates to a filling device for dispensing a defined quantity of a product, comprising: a piston pump (3) for delivering the product to be dispensed from a reservoir (2) to a filling needle (5), wherein the piston pump (3) comprises a piston (30), a cylinder body (31), an inlet (33), an outlet (34), a first non-return valve (8) and a second non-return valve (9), wherein the piston (30), the cylinder body (31), the inlet (34), the outlet (34), the first non-return valve (8) and the second non-return valve (9) are made of a non-metallic material, wherein the inlet (33) and the outlet (34) are arranged inclined at an angle (26, 27) different from zero relative to an axis (22) of the cylinder body (31).

公开(公告)号：US20210215154A1

公开(公告)日：2021-07-15

申请号：US17215155

申请日：2021-03-29

申请人： Kerr Machine Co.

发明人： Mark S. Nowell ,  Kelcy Jake Foster ,  Christopher Todd Barnett ,  Micheal Cole Thomas ,  Brandon Scott Ayres ,  Michael Eugene May ,  Guy J. Lapointe

IPC分类号： F04B53/22 ,  F04B53/16 ,  F04B1/122 ,  F04B1/16 ,  F04B1/145 ,  F16B35/00 ,  F16B39/24 ,  F16B43/00 ,  F04B1/18 ,  F04B1/0408 ,  F04B1/0421

摘要： A fluid end having its fluid flow bores sealed without threading a retaining nut into the walls of each bore. The fluid ends may be assembled using a plurality of different kits, each kit comprising a fluid end body, a component, a retainer element, and a fastening system. The retainer element holds the component within each of the bores formed in the fluid end body and the fastening system secures the retainer element to the body. The fastening system comprises a plurality of externally threaded studs, washers and nuts in some embodiments. In other embodiments, the fastening system comprises a plurality of screws.

公开(公告)号：US11002271B2

公开(公告)日：2021-05-11

申请号：US16688621

申请日：2019-11-19

申请人： Graco Minnesota Inc.

发明人： Jeromy D. Horning ,  Steve J. Wrobel

IPC分类号： F04B53/14 ,  F04B19/22 ,  F16J7/00 ,  F04B1/0408

摘要： A wear sleeve is removably mounted on a piston rod. The piston rod includes a piston cap, a piston rod body, and a piston head, with at least one of the piston cap and the piston head being removable from the piston rod body. The wear sleeve is disposed over the piston rod body and prevents the piston rod from contacting dynamic seals disposed within a pump. The wear sleeve is mechanically secured in a cylindrical recess on the piston rod between a cap shoulder of the piston cap and a head shoulder of the piston head.