公开(公告)号：US12116996B2

公开(公告)日：2024-10-15

申请号：US17420755

申请日：2020-03-10

申请人： Hitachi Industrial Equipment Systems Co., Ltd.

发明人： Nobuyuki Narisawa ,  Ken Umeda ,  Sho Goto ,  Tatsuya Suzuki

IPC分类号： F04B53/14 ,  F04B39/00 ,  F04B39/14

CPC分类号： F04B53/143 ,  F04B39/0005 ,  F04B39/0022 ,  F04B39/14 ,  F04B53/144

摘要： There is provided a compressor including: a piston that reciprocates inside a cylinder; a valve plate that closes an end portion of the cylinder; a connecting rod that supports the piston; a crankshaft that applies a rotating force to an end portion of the connecting rod; and a crankcase that rotatably supports the crankshaft. The piston is an oscillating piston that reciprocates while oscillating inside the cylinder according to rotation of the crankshaft. An outer peripheral surface of the piston is a curved surface.

公开(公告)号：US11959468B2

公开(公告)日：2024-04-16

申请号：US17058276

申请日：2019-05-20

申请人： Putzmeister Engineering GmbH

发明人： Wolf-Michael Petzold ,  Jan-Martin Veit ,  Michael Schaefer ,  Frederik Kort

IPC分类号： F04B15/02 ,  F04B1/02 ,  F04B9/103 ,  F04B17/06 ,  F04B49/00 ,  F04B51/00 ,  F04B53/14

CPC分类号： F04B15/02 ,  F04B1/02 ,  F04B9/103 ,  F04B17/06 ,  F04B49/002 ,  F04B49/005 ,  F04B51/00 ,  F04B53/144

摘要： An apparatus for conveying thick matter has a drive cylinder for receiving hydraulic fluid, a drive piston, which is arranged in the drive cylinder, a conveying cylinder for receiving thick matter, a conveying piston, which is arranged in the conveying cylinder, and a piston rod, which is fastened to the drive piston for coupling motion together with the conveying piston. The drive cylinder has a rod-side opening for applying pressure to a rod side of the drive piston by way of hydraulic fluid and a crown-side opening for applying pressure to a crown side of the drive piston facing away from the rod side by the hydraulic fluid. A drive pump is designed to generate a drive volume flow having a drive pressure of hydraulic fluid for moving the drive piston. A pump connection is designed for variable connection of the drive pump to the rod-side opening or the crown-side opening for the flow of hydraulic fluid. A sensor is designed for automatic detection of whether the pump connection is connected to the rod-side opening or the crown-side opening. A control unit controls the apparatus in a rod-side operating mode, when the rod-side pump connection is detected, and in a crown-side operating mode, when the crown-side pump connection is detected.

公开(公告)号：US11927184B2

公开(公告)日：2024-03-12

申请号：US18231617

申请日：2023-08-08

申请人： Graco Minnesota Inc.

发明人： David J. Thompson ,  Christopher A. Lins ,  Andrew J. Kopel ,  Glen W. Davidson ,  Chad R. Taszarek ,  Chris W. Sydow ,  William M. Blenkush ,  Steve J. Wrobel

IPC分类号： F04B53/14 ,  F04B19/22 ,  F04B53/16 ,  F04B53/22 ,  F15B15/14 ,  F04B15/02

CPC分类号： F04B53/144 ,  F04B19/22 ,  F04B53/147 ,  F04B53/162 ,  F04B53/22 ,  F15B15/1438 ,  F04B15/02

摘要： A displacement pump is configured to mount to a drive housing. A reciprocating drive is connectable to a pump rod of the displacement pump and includes a connecting rod and a drive link that receives a head of the pump rod. A flange projects from a pump body of the pump and a ring projects from the pump body of the pump. A portion of the drive housing is received in a gap between the flange and the ring.

公开(公告)号：US20230417239A1

公开(公告)日：2023-12-28

申请号：US17935525

申请日：2022-09-26

申请人： Evan Scott Guy

发明人： Evan Scott Guy

IPC分类号： F17D5/02 ,  F17D5/00 ,  F04B53/14 ,  F04B19/22

CPC分类号： F17D5/02 ,  F04B19/22 ,  F04B53/144 ,  F17D5/005

摘要： A system and method for recovering fugitive natural gas emissions from compressors. Leak capture devices can be connected to piston rods of the compressor for collecting emissions both during operation and periods where the compressor is shutdown. Captured natural gas is repressurized with cylindrical pumps based on the flow rate of the captured emissions. The equipment can also be configured for capturing blow down events of the equipment.

公开(公告)号：US20230366396A1

公开(公告)日：2023-11-16

申请号：US18221199

申请日：2023-07-12

申请人： Graco Minnesota Inc.

发明人： David J. Thompson ,  Christopher A. Lins ,  Andrew J. Kopel ,  Glen W. Davidson ,  Chad R. Taszarek ,  Chris W. Sydow ,  William M. Blenkush ,  Steve J. Wrobel

IPC分类号： F04B53/14 ,  F04B53/16 ,  F15B15/14 ,  F04B53/22 ,  F04B19/22

CPC分类号： F04B53/144 ,  F04B53/147 ,  F04B53/162 ,  F15B15/1438 ,  F04B53/22 ,  F04B19/22 ,  F04B15/02

摘要： A fluid spraying system includes a displacement pump configured to mount to a drive housing. A reciprocating drive is connectable to a pump rod of the displacement pump and includes a connecting rod and a drive link that receives a head of the pump rod. A tightening ring that includes threading is configured to rotate about a cylinder of the pump and shift along the cylinder and engage with a bottom side of the drive housing to secure the displacement pump to the drive housing.

公开(公告)号：US20230349375A1

公开(公告)日：2023-11-02

申请号：US18221158

申请日：2023-07-12

申请人： Graco Minnesota Inc.

发明人： David J. Thompson ,  Christopher A. Lins ,  Andrew J. Kopel ,  Glen W. Davidson ,  Chad R. Taszarek ,  Chris W. Sydow ,  William M. Blenkush ,  Steve J. Wrobel

IPC分类号： F04B53/14 ,  F04B53/16 ,  F15B15/14 ,  F04B53/22 ,  F04B19/22

CPC分类号： F04B53/144 ,  F04B53/147 ,  F04B53/162 ,  F15B15/1438 ,  F04B53/22 ,  F04B19/22 ,  F04B15/02

摘要： A fluid spraying system includes a displacement pump configured to mount to a drive housing. A reciprocating drive is connectable to a pump rod of the displacement pump and includes a connecting rod and a drive link that receives a head of the pump rod. A tightening ring that includes threading is configured to rotate about a cylinder of the pump and shift axially along the cylinder and engage with a bottom side of the drive housing to secure the displacement pump to the drive housing.

公开(公告)号：US11796065B2

公开(公告)日：2023-10-24

申请号：US16960832

申请日：2019-01-31

申请人： Arne Høeg

发明人： Arne Høeg

IPC分类号： F16J15/56 ,  F02G1/053 ,  F04B53/14 ,  F16F9/36 ,  F16J15/18 ,  F16J15/324

CPC分类号： F16J15/56 ,  F02G1/0535 ,  F04B53/144 ,  F16F9/36 ,  F16J15/186 ,  F16J15/324

摘要： A main object of the present invention is to disclose a piston rod sealing unit that solves the problems that have been mentioned from the prior art disclosures. The invention is a piston rod sealing system (0) with a sealing unit (9), for preventing leakage, of gas from a high-pressure chamber (4) to a low-pressure volume (6), and preventing leakage of a lubricant from said low-pressure volume (6) to said high-pressure chamber (4), along a piston rod (1) extending through said chambers (4, 6) said sealing unit (9) comprising, —a deformable gland (10,21,26) arranged for being pressed against said piston rod (1) by one or more compressing elements (15, 22, 27), —a lubricant (F) between the piston rod (1) and the gland (10, 21, 26), said sealing unit (9) arranged between, —a support structure (8) in the low-pressure volume (6) with a plane sliding surface (8a) facing towards said sealing unit (9), —and a wall (7) of said high-pressure chamber (4), —a plane seal (16) constituting a seal between the sealing unit (9) and said wall (7), said plane seal (16) arranged in a groove (13b, 24a, 26e) in said sealing unit (9), said groove open towards said wall (7), or said plane seal (16) arranged in a groove in the wall (7), said groove open towards said sealing unit (9) wherein, —said sealing unit (9) having a surface area towards said wall (7) between said piston rod (1) and said plane seal (16) smaller than the sliding area between said sealing unit (9, 12b, 25a, 28a) and the plane sliding surface (8a), and —said sealing unit (9) being supported by said plane sliding surface (8a) on the low-pressure side, and said sealing unit (9) being in sliding contact with said wall (7) surface (7a), the length (L′) of said sealing unit (9) is less than the length (L) between the base structure (8) and the wall (7) allowing transverse movement of the sealing unit (9) along the sliding surfaces (7a, 8a).

公开(公告)号：US11732708B2

公开(公告)日：2023-08-22

申请号：US17989250

申请日：2022-11-17

申请人： Graco Minnesota Inc.

发明人： David J. Thompson ,  Christopher A. Lins ,  Andrew J. Kopel ,  Glen W. Davidson ,  Chad R. Taszarek ,  Chris W. Sydow ,  William M. Blenkush ,  Steve J. Wrobel

IPC分类号： F04B53/14 ,  F04B53/22 ,  F04B19/22 ,  F04B53/16 ,  F15B15/14 ,  F04B15/02

CPC分类号： F04B53/144 ,  F04B19/22 ,  F04B53/147 ,  F04B53/162 ,  F04B53/22 ,  F15B15/1438 ,  F04B15/02

摘要： A pump rod has a head extending from a neck, and the head is received within a drive slot of a drive link. The head includes a projection, and has an area smaller than an area of the head. The projection contacts an inner surface of the drive slot. The drive link may include a projection aligned with a centerline of the drive link. The drive link projection contacts a head of the pump rod. The projections provide a reduced contact area between the pump rod and the drive link, thereby reducing any side-loading on the pump rod and increasing a lifespan of the wear parts.

公开(公告)号：US11730174B2

公开(公告)日：2023-08-22

申请号：US15742025

申请日：2016-07-08

申请人： NORDSON CORPORATION

发明人： Vincent A. Prieto ,  James V. Bachman ,  Jared J. Bell ,  Joseph C. Waryu ,  Marco Ciccone ,  Jennifer Lynn Volcansek ,  Mark W. Novotny ,  Madeline Blyth Oswalt ,  Ben Price ,  Daniel J. Brodsky ,  Kenneth Watson ,  Deborah Kosovich ,  Timothy E. Wilson ,  Robert Zuccarelli

IPC分类号： A23G1/18 ,  A23G1/20 ,  A23G3/02 ,  A23G3/20 ,  B05B12/10 ,  B05B9/04 ,  B05B12/12 ,  B05B13/04 ,  F04B9/12 ,  F04B15/02 ,  F04B53/12 ,  F04B53/14 ,  F04B53/20 ,  B05B15/58 ,  F04B9/00

CPC分类号： A23G1/18 ,  A23G1/206 ,  A23G3/0226 ,  A23G3/0257 ,  A23G3/203 ,  A23G3/2092 ,  B05B9/0409 ,  B05B9/0423 ,  B05B12/10 ,  B05B12/122 ,  B05B13/0457 ,  B05B15/58 ,  F04B9/00 ,  F04B9/12 ,  F04B15/02 ,  F04B53/126 ,  F04B53/144 ,  F04B53/20 ,  F04B2205/11

摘要： System for conveying and dispensing material may include a heated supply of the material, one or more heated hoses, a heated dispenser, and a pump having a heating device internal the pump. A pump for conveying liquid or liquefied material, for example chocolate, may include one or more heating devices disposed within the pump. A filter may also be provided with an optional internal heating device.

公开(公告)号：US11708822B2

公开(公告)日：2023-07-25

申请号：US17192002

申请日：2021-03-04

申请人： Positec Power Tools (Suzhou) Co., Ltd.

发明人： Pinghua Wu ,  Yong Qiao ,  Haijun Zhang

IPC分类号： B08B3/02 ,  F04B1/16 ,  F04B19/22 ,  F04C18/077 ,  F04C18/07 ,  F04B17/03 ,  F04B53/14 ,  F04B17/06 ,  F04B53/06

CPC分类号： F04B1/16 ,  B08B3/026 ,  F04B17/03 ,  F04B17/06 ,  F04B19/22 ,  F04B53/06 ,  F04B53/14 ,  F04B53/144 ,  F04C18/07 ,  F04C18/077

摘要： The present application relates to a high-pressure cleaning machine, comprising: a housing, a motor, a transmission mechanism, a pump, a handle, a detachable rechargeable battery pack and a nozzle, wherein the pump comprises a central chamber, a water inlet, a water outlet and a single plunger, a water inlet chamber connected to the water inlet, and a water outlet chamber connected to the water outlet, and wherein the plunger is disposed in the central chamber and is driven by the motor to perform reciprocating motion in the central chamber; wherein the motor, the transmission mechanism and the pump are located at one end of the handle, and the battery pack is located at the other end of the handle.