公开(公告)号：US11110474B2

公开(公告)日：2021-09-07

申请号：US16666565

申请日：2019-10-29

申请人： Chapin Manufacturing, Inc.

发明人： David J. Dubiel

IPC分类号： B05B12/14 ,  B05B7/24 ,  B05B7/12 ,  B05B9/04 ,  B05B7/28 ,  F04B49/24

摘要： A flow control assembly includes a manifold coupled to a positive displacement pump. A fluid input unit is coupled to the fluid inlet and includes a diluent input to receive a diluent and a concentrate input to receive a selectively adjustable flow of a liquid concentrate. A mixing chamber combines the diluent and the liquid concentrate to form a mixed solution to be delivered to the pump. A bypass unit has a bypass conduit to receive a high pressure mixed fluid from the pump. A bypass valve is positionable within the manifold between a closed position and an open position. The bypass valve is closed when the high pressure mixed fluid is below a threshold pressure and open when the high pressure mixed fluid is above the threshold pressure. A portion of the high pressure mixed fluid is reintroduced to the mixing chamber via the bypass inlet.

公开(公告)号：US20210207591A1

公开(公告)日：2021-07-08

申请号：US17059472

申请日：2019-05-24

申请人： ENGIE

发明人： Hicham GUEDACHA

IPC分类号： F04B31/00 ,  F04B51/00 ,  F04B49/24

摘要： The device (100) for compressing a low-pressure gas comprises: at least one compression chamber (105) comprising: an inlet (110) for low-pressure gas, an outlet (115) for high-pressure gas, an inlet (120) for fluid, an outlet (125) for fluid, and a piston (130) located between the gas inlet and outlet, on the one hand, and the fluid inlet and outlet, on the other hand; a fluid movement means (135) positioned on a fluid circuit connecting a fluid outlet and a fluid inlet of a compression chamber; and a means (165) for measuring the gas pressure inside the compression chamber and a circuit (160) to recirculate gas to the inlet of a compression chamber when the measured pressure is less than a predefined limit value.

公开(公告)号：US11002267B2

公开(公告)日：2021-05-11

申请号：US15676195

申请日：2017-08-14

申请人： Artemis Intelligent Power Limited

发明人： William Rampen ,  Niall Caldwell ,  Stephen Laird ,  Michael Fielding ,  Peter McCurry ,  Mark Brett

IPC分类号： F04B49/12 ,  F04B49/22 ,  F04B53/10 ,  F16K37/00 ,  F16K31/06 ,  F04B7/00 ,  F04B49/24

摘要： A valve unit for a fluid working machine comprise a valve having a valve member (and optionally a valve seat), a valve actuator coupled to the valve member, and an electronic actuator controller which is integral to the valve unit and configured to actively control the valve actuator to thereby control the valve member.

公开(公告)号：US10947967B1

公开(公告)日：2021-03-16

申请号：US16815245

申请日：2020-03-11

申请人： Halliburton Energy Services, Inc.

发明人： Jim Basuki Surjaatmadja ,  Robert Lee Pipkin ,  Timothy Holiman Hunter

IPC分类号： F04B49/24 ,  F04B47/00 ,  F04B49/22 ,  F04B23/04 ,  E21B43/04 ,  E21B43/26 ,  E21B33/13 ,  F04B53/10

摘要： A discharge valve assembly configured to control fluid flow out of a chamber of a pump fluid end of a pump, wherein the discharge valve assembly comprises a controllable holding system (CHS), wherein the CHS is controllable to hold the discharge valve assembly in an open configuration.

公开(公告)号：US10890177B2

公开(公告)日：2021-01-12

申请号：US16108458

申请日：2018-08-22

申请人： DENSO CORPORATION

发明人： Naoyuki Hagihara

IPC分类号： F04B49/22 ,  F02M37/00 ,  F04B7/00 ,  F04B1/0461 ,  F04B23/04 ,  F02M59/46 ,  F02M55/04 ,  F02M63/00 ,  F04B49/24 ,  F04B1/053 ,  F04B9/04 ,  F02M63/02

摘要： A metering valve is installed in a feed passage that supplies low pressure fuel, which is fed from a feed pump, to a pressurizing chamber. The metering valve adjusts a discharge amount of the low pressure fuel discharged from the pressurizing chamber. A first pressure regulating valve is opened in a case where a pressure of the low pressure fuel becomes equal to or larger than a first preset pressure. A second pressure regulating valve is opened in a case where the pressure of the low pressure fuel becomes equal to or larger than a second preset pressure. The first pressure regulating valve and the second pressure regulating valve are configured such that a degree of responsiveness of valve opening and closing of the second pressure regulating valve is higher than a degree of responsiveness of valve opening and closing of the first pressure regulating valve.

公开(公告)号：US20190120256A1

公开(公告)日：2019-04-25

申请号：US15792971

申请日：2017-10-25

申请人： Raytheon Company

发明人： Kirk A. Miller

IPC分类号： F15B1/04 ,  F16K1/52 ,  F04B49/24 ,  F16K17/38 ,  G05D16/10

摘要： An apparatus includes a bootstrap accumulator having multiple fluid expansion volumes each configured to receive fluid. The bootstrap accumulator also includes a piston assembly configured to move within the fluid expansion volumes based on pressures within the fluid expansion volumes. The piston assembly includes (i) a fluid pathway that couples the fluid expansion volumes and (ii) a bypass valve configured to selectively open or block the fluid pathway. The piston assembly could also include multiple pistons and a connecting rod coupling the pistons. The fluid pathway could include a narrower path through a first portion of the connecting rod and a wider path through a second portion of the connecting rod. The bypass valve could include a ball and a spring configured to push the ball to block the narrower path through the first portion of the connecting rod.

公开(公告)号：US10167708B2

公开(公告)日：2019-01-01

申请号：US15148816

申请日：2016-05-06

申请人： GE Energy Oilfield Technology, Inc.

发明人： William Alexander Beveridge

IPC分类号： E21B43/12 ,  E21B23/12 ,  F04B15/00 ,  F04B49/24 ,  F04B53/10 ,  F04D1/00 ,  F04D15/00 ,  F04D29/44 ,  F04C14/26 ,  F16K5/06 ,  F16K31/12 ,  F16K15/04 ,  E21B34/00 ,  F04D13/10

摘要： A Y-tool is configured for use with a pumping system that includes an electric submersible pump and bypass tubing. The Y-tool includes a slave valve assembly that controls access to the bypass tubing. The Y-tool also includes a master valve assembly driven by pressure from the electric submersible pump and a linkage assembly connected between the master valve assembly and the slave valve assembly.

公开(公告)号：US20180347558A1

公开(公告)日：2018-12-06

申请号：US16052295

申请日：2018-08-01

申请人： John E. McLoughlin

发明人： John E. McLoughlin

IPC分类号： F04B49/06 ,  F04B49/24 ,  F04B49/20 ,  F04B49/08 ,  F04B17/05 ,  A62C31/00

CPC分类号： F04B49/06 ,  A62C31/00 ,  F04B17/05 ,  F04B49/08 ,  F04B49/20 ,  F04B49/24 ,  F04B2203/0605 ,  F04B2205/02 ,  F04B2205/04 ,  F04B2205/151

摘要： A pump intake pressure control apparatus includes an intake conduit joining a pump to either a pressurized or unpressurized liquid source, a wide-range flow controller configured to control the flow of liquid through the intake conduit, pressure sensors for detecting the pressure of the liquid in the intake conduit upstream and downstream of the flow controller, and an electronic master controller programmed to receive input from the pressure sensors and to actuate the wide-range flow controller to maintain the pressure downstream of the wide-range flow controller at or below a predetermined desired value. In one embodiment of the invention, the wide-range flow controller is a branched portion of the intake conduit having a valve in each branch. In another embodiment of the invention, the flow controller is a gate valve having a stationary triangular blocking member projecting into the passage between the inlet and outlet ports of the valve.

公开(公告)号：US10125749B2

公开(公告)日：2018-11-13

申请号：US15535756

申请日：2015-10-27

申请人： Robert Bosch GmbH

发明人： Otto Mueller ,  Georg Woesten ,  Juergen Schneck

IPC分类号： F02M59/00 ,  F04B1/04 ,  F02M59/06 ,  F02M59/10 ,  F04B1/06 ,  F04B7/00 ,  F04B49/06 ,  F04B49/24 ,  F04B9/04

摘要： A pump has at least one pump element that comprises a pump piston that is driven in a reciprocating movement by a drive shaft having at least one cam and that defines a pump working chamber which, during the suction stroke of the pump piston is selectively filled with pumped medium via an inlet valve. The at least one cam is a multiple cam having multiple cam delivery areas for the delivery strokes of the pump piston. The inlet valve is configured to be electrically actuated. The inlet valve is closed when the pump piston is situated in the cam delivery area to be used for the delivery. The inlet valve is opened when the pump piston is situated in a cam delivery area that is not to be used for the delivery. Cam profiles of the cam delivery areas of at least one multiple cam are of different design.

公开(公告)号：US20180320682A1

公开(公告)日：2018-11-08

申请号：US16040328

申请日：2018-07-19

申请人： Flow International Corporation

发明人： Jordan J. Hopkins

IPC分类号： F04B49/035 ,  F16K47/04 ,  F16K15/02 ,  F16K31/122 ,  F04B53/10 ,  F04B49/24 ,  B26F3/00 ,  F16K17/04

摘要： A relief valve assembly is provided for use in connection with high pressure and ultrahigh pressure pumps. The relief valve assembly includes a valve pin having an engagement portion with a tapered surface and a valve seat having a valve pin receiving aperture defining a tapered surface on the valve seat to sealingly mate with the engagement portion of the valve pin when the valve pin is seated against the valve seat in a seated configuration. The valve seat further includes at least one bypass passage that extends from the valve pin receiving aperture to an exterior surface of the valve seat such that when the valve pin is displaced away from the seated configuration fluid can pass through the bypass passage and an annular space created between the engagement portion of the valve pin and the valve seat. Systems incorporating the relief valve assembly are also provided.