-
公开(公告)号：US20210372388A1
公开(公告)日：2021-12-02
申请号：US17401466
申请日：2021-08-13
申请人： WAYNE A WOLF
发明人： WAYNE A WOLF
IPC分类号： F04B39/06 , F04B25/02 , F04B39/10 , F04B49/12 , F04B49/22 , F04B35/00 , F04B39/08 , F04B27/00 , F04B53/14
摘要： A hydraulically operated compressor has a fixed piston and a fixed compression or outer cylinder. A drive or intermediate cylinder is located between the piston and outer cylinder. A compression chamber is formed between the drive cylinder and the outer cylinder. Drive fluid is pumped into and released from an interior chamber in the drive cylinder to reciprocate the drive cylinder. The drive fluid also provides cooling to the interior of the compressor.
-
公开(公告)号：US20210372387A1
公开(公告)日：2021-12-02
申请号：US17332209
申请日：2021-05-27
申请人： Graco Minnesota Inc.
摘要： A transfer pump includes a drive module having electronic components and a fluid module not including electronic components. The drive module provides motive power to a pump of the fluid module to power pumping by the fluid module. The drive module is movably mounted to the fluid module at dynamic and static interfaces to power reciprocation of a pumping component of the fluid module by the dynamic interface and such the drive module supports the fluid module at the static interface.
-
公开(公告)号：US20210348605A1
公开(公告)日：2021-11-11
申请号：US17272023
申请日：2018-10-05
摘要： A pumping system pumps material or fluid downhole, for example, to perform a stimulation operation. The pumping system comprises a hydraulic pump coupled to an intensifier. The intensifier comprises a piston which allows for a small footprint as compared to an intensifier with a plunger. The hydraulic cylinder of the intensifier is protected from the corrosive, erosive and abrasive effects of the material or fluid to be pumped by one or more seals. Using the intensifier that includes a piston provides for a greater reliability of the overall pumping system as fewer strokes are required and a compact pumping system as the stroke length of the intensifier with a piston is less than the stroke length required for a plunger.
-
公开(公告)号：US20210316973A1
公开(公告)日：2021-10-14
申请号：US17209217
申请日：2021-03-23
发明人： Guoliang HE , Weixiang HE , Gang SUN , Guannan LU , Hangfeng LI
摘要： A jack with a protecting structure of a pump piston and a method for using the same are provided. The jack includes a housing, a base located inside the housing, and the protecting structure. An oil cylinder and a pump body are installed on the base. A pump piston is installed on the pump body. A spring is installed on the pump piston and the pump body. A stop protrusion is arranged on the pump piston. The protecting structure includes a dustproof sleeve and a wool felt. The dustproof sleeve is installed on the base and the pump piston. One end of the dustproof sleeve is detachably fixed on the base through a fastener. The other end of the dustproof sleeve is connected to an end portion of the pump piston. The shape of the dustproof sleeve is set into a wavy type.
-
公开(公告)号：US11135362B2
公开(公告)日：2021-10-05
申请号：US16502248
申请日：2019-07-03
发明人： Paul M. DiPerna , Michael J. Rosinko , Geoffrey A. Kruse , Thomas R. Ulrich , Christopher Dabrow , Mark Williamson , Brian Bureson , Kathryn Rieger
IPC分类号： A61M5/172 , A61M5/14 , F16J15/32 , F04B43/113 , G16H40/63 , A61M5/142 , A61M5/315 , F04B53/14 , F16J15/56 , A61M5/168 , G06F3/0488
摘要： Embodiments are directed to portable infusion devices, systems, and methods of using the same for dispensing materials. In some cases, the devices, systems and methods may be used for infusing a material such as medicament, e.g., insulin, into a body in need thereof.
-
公开(公告)号：US20210285430A1
公开(公告)日：2021-09-16
申请号：US16316131
申请日：2017-03-31
申请人： KYB Corporation
发明人： Tetsuya IWANAJI , Masaya ABE , Takeshi KODAMA
IPC分类号： F04B1/2078 , F04B53/16 , F04B53/14
摘要： A swash-plate type piston pump includes a cylinder block configured to be rotated with rotation of a driving shaft, a plurality of pistons accommodated in a plurality of cylinders provided in the cylinder block, a swash plate configured to reciprocate the piston so that a volume chamber of the cylinder is expanded/contracted with the rotation of the cylinder block, an biasing mechanism configured to bias the swash plate in a direction where a tilting angle is made larger, a control pin configured to drive the swash plate in a direction where the tilting angle is made smaller in accordance with a rise in a load pressure of a pressure chamber, and a discharge channel configured to discharge the load pressure of the pressure chamber.
-
公开(公告)号：US11105321B2
公开(公告)日：2021-08-31
申请号：US15869262
申请日：2018-01-12
申请人： IWAKI CO., LTD.
发明人： Mikio Mizukoshi
摘要： Plunger pump includes cylinder having inside cylinder chamber; plunger disposed in cylinder to be relatively movable forward and backward to cylinder chamber so outer plunger's circumferential face is in slide contact with cylinder's inner circumferential face, and having cut face on distal end's outer periphery; and suction and discharge ports provided to cylinder to communicate with cylinder chamber, plunger pump transferring fluid by reciprocating plunger in axial direction while rotating plunger relative to cylinder chamber to let suction and discharges ports alternately communicate with cylinder chamber, wherein cylinder includes cylinder main body and spacer section being disposed in cylinder main body's inner portion of proximal end side, and sliding against plunger's portion closer to proximal end side than portion of plunger advancing and retracting into cylinder chamber, and plunger pump further includes seal section provided on cylinder's proximal end side for sealing cylinder main body, plunger and spacer section.
-
公开(公告)号：US20210254712A1
公开(公告)日：2021-08-19
申请号：US16789454
申请日：2020-02-13
摘要： A piston assembly for a piston pump includes an actuator rod, a piston coupled to the actuator rod and configured to contact a radially-inner wall of a cylinder, and an piston support structure coupled to the actuator rod and configured to contact the radially-inner wall of the cylinder. A fluid channel extends through the actuator rod and the piston support structure, and the fluid channel is configured to deliver a lubricating fluid to an annular space positioned between the piston and the piston support structure along an axial axis of the piston assembly.
-
公开(公告)号：US11092164B2
公开(公告)日：2021-08-17
申请号：US14983198
申请日：2015-12-29
发明人： Andrew Nelson , Michael Card , Craig Vickery , Derek Justice , Jonathan Ou , William Haffey
IPC分类号： F04D29/42 , F04B47/02 , F04D29/12 , F04D29/62 , F04D1/06 , F04D29/08 , F04B53/14 , F04D13/02
摘要： A suction chamber for use in a surface pumping system includes a central housing that is substantially cylindrical and has a motor end and a pump end opposite the motor end. The suction chamber includes a motor-end plate bolted to motor end of the central housing and a pump-end plate bolted to the pump end of the central housing. The suction chamber also includes an inlet branch connected to the central housing. A method for assembling a non-welded suction chamber is also disclosed.
-
公开(公告)号：US11085430B2
公开(公告)日：2021-08-10
申请号：US16312237
申请日：2017-06-26
申请人： Kobe Steel, Ltd.
摘要： A gas leak determining method for a multi-stage compressor including: a first compressing unit that compresses a gas; and a second compressing unit that further compresses the gas compressed by the first compressing unit includes: a step of calculating a proportion of discharge pressure from the second compressing unit to discharge pressure from the first compressing unit or suction pressure into the second compressing unit; and a step of determining that a gas is leaking from the second compressing unit when the proportion becomes equal to or less than a set value.
-
-
-
-
-
-
-
-
-
搜索结果
2833 条记录 (耗时 0.033 秒)
