公开(公告)号：US20240376892A1

公开(公告)日：2024-11-14

申请号：US18771874

申请日：2024-07-12

Applicant: Vulcan Industrial Holdings, LLC

Inventor： Kyle Matthew Ellisor ,  Akhil Alex ,  Benjamin Scott Berryhill ,  Chance Ray Mullins ,  Steven Zachary Newberg ,  Chris Leake

IPC: F04B53/16 ,  F04B1/0421 ,  F04B53/22 ,  F16L55/10

Abstract: A fluid end includes a housing having a bore extending toward a cavity and a wear sleeve positioned within the bore. The fluid end also includes a plunger positioned within a plunger bore extending through the wear sleeve, the plunger reciprocating within the plunger bore. The fluid end further includes a wear sleeve retainer coupled to the housing and positioned to block axial movement of the wear sleeve, the wear sleeve retainer having external threads along a body that engage internal threads formed in the housing. The fluid end also includes an anti-rotation system, coupled to the housing, the anti-rotation system engaging the wear sleeve retainer to block rotation of the wear sleeve retainer in at least one direction. The fluid end further includes a packing nut coupled to the wear sleeve retainer.

公开(公告)号：US20240240623A1

公开(公告)日：2024-07-18

申请号：US18289362

申请日：2022-04-29

Applicant: THYSSENKRUPP PRESTA ILSENBURG GMBH ,  thyssenkrupp AG

Inventor： Ulf MUELLER ,  Tim MUELLER

IPC: F04B1/0421 ,  F04B17/03

CPC classification number: F04B1/0421 ,  F04B17/03

Abstract: A radial piston pump, including a drive shaft having an eccentric and at least one piston-and-working chamber combination, wherein the piston-and-working chamber combination includes a working chamber and a piston. The radial piston pump includes at least two piston-and-working chamber combinations which extend radially from the drive shaft, wherein each working chamber is closed by a cover. The radial piston pump is equipped with at least one retaining ring for fixing all of the covers of the radial piston pump; and to a method for producing a radial piston pump.

公开(公告)号：US11939981B2

公开(公告)日：2024-03-26

申请号：US17553131

申请日：2021-12-16

Applicant: Robert Bosch GmbH

Inventor： Thomas Chapman

IPC: F04D15/00 ,  F04B1/0421 ,  F02M41/10 ,  F04B49/12

CPC classification number: F04D15/0038 ,  F04B1/0421 ,  F02M41/10 ,  F04B49/128

Abstract: A rotary disc valve is used in a fluid delivery system to control flow of fluid between multiple ports of a valve housing. The valve housing may include a valve body and a lid that closes an open end of the valve body. In addition, the valve may include a diverter and seal assembly that are disposed in the valve housing. The diverter is configured to rotate about a rotational axis and to control fluid flow through the valve housing. The seal assembly provides a dynamic seal that is fluid tight within a plane that is perpendicular to the rotational axis. The diverter, the valve body and the seal assembly cooperate to define a fluid passageway that is coaxial with the rotational axis and passes through the seal assembly.

公开(公告)号：US11655812B2

公开(公告)日：2023-05-23

申请号：US17882267

申请日：2022-08-05

Applicant: Kerr Machine Co.

Inventor： Kelcy Jake Foster ,  Mark S. Nowell ,  Brandon Scott Ayres ,  Christopher Todd Barnett

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

CPC classification number: F04B53/22 ,  F04B1/0408 ,  F04B1/0421 ,  F04B1/122 ,  F04B1/145 ,  F04B1/16 ,  F04B1/18 ,  F04B53/16 ,  F16B35/005 ,  F16B39/24 ,  F16B43/00 ,  F05B2260/301

Abstract: 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 that each comprise 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：US20210293227A1

公开(公告)日：2021-09-23

申请号：US17258417

申请日：2019-07-30

Applicant: GEA MECHANICAL EQUIPMENT ITALIA S.P.A.

Inventor： MICHELE MANFREDI ,  MASSIMILIANO BENASSI ,  LEONARDO MAGGI ,  CESARE BANDINI

IPC: F04B17/03 ,  F04B1/0408 ,  F04B1/0421

Abstract: High-pressure homogeniser (100) comprising:
a volumetric piston pump (1) comprising a plurality of pumping pistons (10); a homogenising valve (20) arranged downstream of the volumetric piston pump (1); linear motion transmission means (5) of the electro-hydrostatic type, comprising an electric motor (6) and a pump (7) directly driven by the electric motor (6), the pump (7) being operatively active on the pistons (10); a control unit (40) configured to control the linear motion transmission means (5) such that a reciprocating motion is imposed to each piston (10) according to a law of motion which is pre-established and independent from the laws of motion of the other pistons (10).

公开(公告)号：US12152582B2

公开(公告)日：2024-11-26

申请号：US18321054

申请日：2023-05-22

Applicant: Kerr Machine Co.

Inventor： Kelcy Jake Foster ,  Mark S. Nowell ,  Brandon Scott Ayres ,  Christopher Todd Barnett

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

Abstract: 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 that each comprise 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：US20230287882A1

公开(公告)日：2023-09-14

申请号：US18321054

申请日：2023-05-22

Applicant: Kerr Machine Co.

Inventor： Kelcy Jake Foster ,  Mark S. Nowell ,  Brandon Scott Ayres ,  Christopher Todd Barnett

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

CPC classification number: F04B53/22 ,  F04B53/16 ,  F04B1/122 ,  F04B1/16 ,  F04B1/145 ,  F16B35/005 ,  F16B39/24 ,  F16B43/00 ,  F04B1/18 ,  F04B1/0408 ,  F04B1/0421 ,  F05B2260/301

Abstract: 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 that each comprise 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：US20220372972A1

公开(公告)日：2022-11-24

申请号：US17882267

申请日：2022-08-05

Applicant: Kerr Machine Co.

Inventor： Kelcy Jake Foster ,  Mark S. Nowell ,  Brandon Scott Ayres ,  Christopher Todd Barnett

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

Abstract: 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 that each comprise 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：US11261853B2

公开(公告)日：2022-03-01

申请号：US16622224

申请日：2018-06-07

Applicant: Robert Bosch GmbH

Inventor： Siamend Flo ,  Oliver Albrecht ,  Frank Nitsche ,  Andreas Plisch ,  Dietmar Uhlenbrock ,  Olaf Schoenrock ,  Jurij Giesler ,  Ekrem Cakir

IPC: F04B1/0408 ,  F02M59/10 ,  F02M59/44 ,  F04B1/0421 ,  F04B1/0448 ,  F04B53/14 ,  F04B53/16

Abstract: A piston pump, in particular a high-pressure fuel pump for an internal combustion engine, includes a pump housing, a pump piston, and a delivery chamber that is delimited at least by the pump housing and the pump piston. The piston pump further includes a seal configured to seal the delivery chamber and a separate guide element configured to guide the pump piston. The seal and the guide element are arranged between the pump piston and the pump housing. The seal is formed as a plastic ring with a substantially sleeve-shaped base portion.

公开(公告)号：US20210148319A1

公开(公告)日：2021-05-20

申请号：US17097411

申请日：2020-11-13

Applicant: MAN Energy Solutions SE

Inventor： Wolfgang Wagner ,  Denis Kovalev ,  Markus Meixner ,  Thomas Hamann

IPC: F02M59/44 ,  F02M59/10 ,  F04B1/0421 ,  F04B53/04 ,  F04B53/16

Abstract: A piston pump as a high-pressure fuel pump of a common rail system includes: a pump cylinder; a pump piston moveably mounted in a recess of the pump cylinder, the pump piston being moveable up and down in the recess; and a leakage groove arranged in the pump cylinder in a region of the recess, the leakage groove being coupled with a leakage line configured to discharge a fuel leakage. Between the pump cylinder and the pump piston a different size pairing clearance is formed in first and second portions of the pump cylinder.