公开(公告)号：US12180955B2

公开(公告)日：2024-12-31

申请号：US18101354

申请日：2023-01-25

Applicant: LG Electronics Inc.

Inventor： Sangsub Jeong ,  Sungchul Gong ,  Seongyeol Hyun

IPC: F04B53/18 ,  F04B9/06 ,  F04B35/04 ,  F04B39/00 ,  F04B39/02 ,  F04B39/10 ,  F04B39/12 ,  F04B39/14 ,  F04B53/10 ,  F04B53/22

Abstract: An oil feeder and a linear compressor including the same are disclosed. The oil feeder includes an oil cylinder defining an oil supply hole configured to extend in a first direction, an accommodation groove formed concavely at a side, and a communication hole configured to communicate the oil supply hole with the accommodation groove, an oil piston accommodated in the accommodation groove and configured to reciprocate in a second direction perpendicular to the first direction, a first ball accommodated in the oil supply hole and disposed below the communication hole, a second ball accommodated in the oil supply hole and disposed on the communication hole, and an elastic member comprising an outer portion coupled to the accommodation groove and an inner portion coupled to the oil piston.

公开(公告)号：US20240360828A1

公开(公告)日：2024-10-31

申请号：US18648470

申请日：2024-04-28

Applicant: J.C. Bamford Excavators Limited

Inventor： James Hewitt

IPC: F04B53/18 ,  F04B9/02 ,  F04B17/03

CPC classification number: F04B53/18 ,  F04B9/02 ,  F04B17/03

Abstract: A hydraulic pump assembly includes an electric motor; a hydraulic pump driveably connected to the electric motor via a rotatable coupling; wherein the rotatable coupling includes a splined connection housed within a chamber comprising a chamber wall, wherein the chamber defines a flow passage for hydraulic oil for lubricating the rotatable coupling, the chamber includes an inlet for receiving a flow of hydraulic oil from the pump and an outlet for exiting the flow of hydraulic oil to the exterior of the chamber.

公开(公告)号：US20240344506A1

公开(公告)日：2024-10-17

申请号：US18750835

申请日：2024-06-21

Applicant: Kerr Machine Co.

Inventor： John Keith ,  Micheal Cole Thomas ,  Christopher Todd Barnett ,  Kelcy Jake Foster ,  Nicholas Son

IPC: F04B15/02 ,  E21B43/26 ,  F04B1/0452 ,  F04B1/0538 ,  F04B7/00 ,  F04B7/02 ,  F04B17/00 ,  F04B19/04 ,  F04B19/22 ,  F04B53/00 ,  F04B53/10 ,  F04B53/14 ,  F04B53/16 ,  F04B53/18 ,  F04B53/22 ,  F16K1/42 ,  F16K11/10 ,  F16K15/06 ,  F16L55/11

CPC classification number: F04B15/02 ,  F04B1/0452 ,  F04B1/0538 ,  F04B7/0003 ,  F04B7/0088 ,  F04B7/0208 ,  F04B53/007 ,  F04B53/1022 ,  F04B53/1032 ,  F04B53/14 ,  F04B53/162 ,  F04B53/164 ,  F04B53/22 ,  F16K1/42 ,  F16K11/105 ,  F16K15/063 ,  F16L55/11 ,  E21B43/2607 ,  F04B7/0084 ,  F04B7/0266 ,  F04B17/00 ,  F04B19/04 ,  F04B19/22 ,  F04B53/006 ,  F04B53/18 ,  F16K15/066

Abstract: A high pressure pump. The pump comprises a fluid end assembly supported on a power end assembly. The power end assembly is modular and held together by a first set of stay rods. The fluid end assembly comprises a plurality of fluid end sections positioned in a side-by-side relationship. Each fluid end section comprises a housing made of multiple-piece construction. One or more pieces of the housing are configured to having a second set of stay rods attached thereto. The second set of stay rods interconnect the fluid end assembly and a power end assembly and a vertically offset from the first set of stay rods.

公开(公告)号：US12084532B2

公开(公告)日：2024-09-10

申请号：US17879941

申请日：2022-08-03

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Dane M. Ferraris ,  Richard Legg ,  Ahmed Abouelfetouh Youssef ,  Vern Lowry

IPC: F04B15/02 ,  B01F25/44 ,  B01F25/451 ,  B01F101/00 ,  C08F279/02 ,  F04B53/08 ,  F04B53/16 ,  F04B53/18

CPC classification number: C08F279/02 ,  B01F25/44 ,  B01F25/4512 ,  F04B15/02 ,  F04B53/08 ,  F04B53/162 ,  F04B53/18 ,  B01F2101/2805 ,  B01F2215/0431

Abstract: The invention relates to a piston system (1) for use in a homogenizer, comprising a piston (2) that is configured and arranged to make a reciprocating movement in use of the piston system, a cylinder (3) that is configured and arranged to receive and guide at least a first part of the piston, a first supply channel (8) that is configured and arranged to supply a lubricating medium (9) to a portion (10) of the first part of the piston that in use is arranged inside the cylinder, and a second supply channel (13) that is configured and arranged to, in use, supply a cooling medium (14) to a second part of the piston outside the cylinder. Also disclosed is a process for the production of an elastomer agglomerate composition forcing a slurry comprising elastomeric particles through an aperture to obtain the elastomer agglomerate composition using the piston system.

公开(公告)号：US12071939B2

公开(公告)日：2024-08-27

申请号：US17438919

申请日：2020-03-13

Applicant: SPM Oil & Gas Inc.

Inventor： Richard David Peer

IPC: F16J15/3204 ,  F04B15/02 ,  F04B53/02 ,  F04B53/16 ,  F04B53/18 ,  F16J15/00

CPC classification number: F04B15/02 ,  F04B53/02 ,  F04B53/164 ,  F04B53/18 ,  F16J15/006 ,  F16J15/3204

Abstract: A seal packing assembly for a hydraulic pump includes a plurality of annular dynamic seals disposed within annular grooves circumferentially defined in the annular bore, a packing gland circumferentially housing a section of the plunger, and a plurality of seal manifolds distributed and defined within the packing gland, each seal manifold defining a port at one end exposed to the pumping fluid and further defining a clean lubrication fluid inlet proximate to a second end, the fluid inlet coupled to a lube pump via a check valve, where the clean lubrication fluid housed in the seal manifolds is maintained at a constant pressure. Each seal manifold includes a piston disposed within the seal manifold having a first end configured with a first surface area to interface with the pumping fluid and a second end configured with a second surface area to interface with the clean lubrication fluid, and a fluid port configured to provide fluid communication between the seal manifold and the annular grooves of the annular dynamic seals.

公开(公告)号：US12060880B2

公开(公告)日：2024-08-13

申请号：US17938907

申请日：2022-09-06

Applicant: XIAMEN JJD MACHINERY CO., LTD

Inventor： Hualan Wang

IPC: F04B53/18 ,  B22D17/20

CPC classification number: F04B53/18 ,  B22D17/2038 ,  F05D2240/50 ,  F05D2260/98

Abstract: A method for manufacturing a bushing of a self-lubricating plunger includes: S1. uniformly mixing a base metal powder with a reinforcing metal powder to obtain a mixture, putting the mixture into a mold for pressing by a hydraulic press machine to form a blank, then sintering the blank to form a tubular metal foundation having a plurality of micropores; S2. melting a metal matrix lubricant by heating up, wherein the metal matrix lubricant includes a metal substance of low melting point and a basic lubricating powder dispersed in the metal substance, and the metal substance has a melting point higher than a storage temperature of the bushing and lower than a working temperature of the plunger; and S3. immersing the tubular metal foundation in the molten metal matrix lubricant to fill the micropores of the tubular metal foundation with the metal matrix lubricant, then cooling down the temperature.

公开(公告)号：US20240254985A1

公开(公告)日：2024-08-01

申请号：US18423885

申请日：2024-01-26

Applicant: A&W Energy, LLC

Inventor： John D. Morreale

IPC: F04B53/14 ,  E21B43/26 ,  F04B53/00 ,  F04B53/18

CPC classification number: F04B53/14 ,  F04B53/006 ,  F04B53/18 ,  E21B43/2607

Abstract: A pump power end includes an assembly comprising a crosshead, a connecting rod, and a joint. The joint may include a knuckle and a keeper. The connecting rod may include a forked end comprising two tines with a gap in the middle. The knuckle of the joint may be fixedly coupled to both tines. The crosshead may include a socket within which the knuckle of the joint is rotatably received. The keeper of the joint may include a body with a recess aligned with the socket to form a cavity within which the knuckle is disposed. The body of the keeper may be coupled to the crosshead and reside in the gap in the forked end of the connecting rod to retain the knuckle.

公开(公告)号：US11952998B2

公开(公告)日：2024-04-09

申请号：US18106582

申请日：2023-02-07

Applicant: ANHUI MEIZHI COMPRESSOR CO., LTD.

Inventor： Jiahua Hong ,  Xuebao Shen ,  Hongjun Cao

IPC: F04B53/18 ,  F04B53/00 ,  F16C3/14 ,  F25B31/00

CPC classification number: F04B53/18 ,  F04B53/006 ,  F16C3/14 ,  F25B31/002

Abstract: A crankshaft, an inverter compressor and a refrigeration device are provided. The crankshaft has a main shaft, a crank, and a crank shaft at an end of the main shaft through the crank. The main shaft has an oil suction inner chamber, and an oil distribution channel penetrating the crank shaft. An outer wall surface of the main shaft has a first spiral oil groove and a second spiral oil groove. One end of each of the first spiral oil groove and a second spiral oil groove is in communication with the oil suction inner chamber. Another end of the first spiral oil groove and another end of the second spiral oil groove are formed as a first hole channel and a second hole channel in communication with the oil distribution channel, respectively.

公开(公告)号：US11920585B1

公开(公告)日：2024-03-05

申请号：US17901737

申请日：2022-09-01

Applicant: EKU POWER DRIVES INC.

Inventor： Levi Wayne Beck ,  Benedikt Peter Zier ,  Andreas Pfister

IPC: F04B53/18 ,  F04B53/08 ,  F04B53/20 ,  F04B47/00

CPC classification number: F04B53/18 ,  F04B53/08 ,  F04B53/20 ,  F04B47/00 ,  F04B2205/06

Abstract: A device including a reservoir configured to receive a lubricant from a machine lubricated with the lubricant. The device also includes a pressure equalizer connected to the reservoir. The device also includes a first loop comprising a first line system through which the lubricant flows between the machine and the reservoir. The lubricant within the first loop is at a first pressure. The device also includes a temperature regulation system configured to regulate a temperature of the lubricant. The device also includes a second loop comprising a second line system through which the lubricant flows between the temperature regulation system and the reservoir. The lubricant within the second loop is at a second pressure that is less than the first pressure. The second loop is separate from the first loop.

公开(公告)号：US20240060488A1

公开(公告)日：2024-02-22

申请号：US18271310

申请日：2021-12-21

Applicant: Shanghai Wave Rider Fluid Technology Co., Ltd.

Inventor： Fan Zhang

IPC: F04B53/18 ,  F04B53/14 ,  F04B53/00 ,  F04B9/04

CPC classification number: F04B53/18 ,  F04B53/14 ,  F04B53/006 ,  F04B9/045

Abstract: This disclosure discloses a water-lubricated high-pressure pump using rolling support, including a driving mechanism, a shell, a rolling bearing, an isolation structure, at least one plunger and a plunger chamber. The driving mechanism includes a main shaft and at least one eccentric structure, and the main shaft is rotationally connected to the shell through the rolling bearing. The eccentric structure is located in a first inner chamber of the shell, which is configured for filling water or aqueous solution. The rolling bearing is located in a second inner chamber of the shell, and the isolation structure is configured to seal the water or aqueous solution inside the shell to prevent the water or aqueous solution from entering into the second inner chamber. When the eccentric structure is rotated, the eccentric structure can push the plunger to move in the plunger chamber to realize pressurization of the water or aqueous solution.