公开(公告)号：US11965601B2

公开(公告)日：2024-04-23

申请号：US17597965

申请日：2020-06-25

申请人： FUJIKOKI CORPORATION

发明人： Daisuke Kondo ,  Kenichi Mochizuki ,  Satoshi Goto

IPC分类号： F16K1/44 ,  F16K11/048 ,  F16K31/04

CPC分类号： F16K1/44 ,  F16K11/048 ,  F16K31/04

摘要： In a flow path switching valve, when a valve rod is shifted toward a first back pressure chamber, a first valve chamber is separated from the first back pressure chamber by a first valve element, and a second valve chamber is separated from an intermediate chamber by a second valve element. When the valve rod is shifted toward a second back pressure chamber, the first valve chamber is separated from the intermediate chamber by the first valve element, and the second valve chamber is separated from the second back pressure chamber by the second valve element. The valve rod has a pressure equalizing path through which the first back pressure chamber and the second back pressure chamber are connected.

公开(公告)号：US11781397B2

公开(公告)日：2023-10-10

申请号：US17464306

申请日：2021-09-01

申请人： George Todd Lowry ,  Christopher Len Jackson

发明人： George Todd Lowry ,  Christopher Len Jackson

IPC分类号： E21B33/06 ,  F16K31/52 ,  F16K15/02 ,  F16K11/04 ,  F16K31/50 ,  F16K15/18 ,  F16K31/60 ,  F16K11/048

CPC分类号： E21B33/06 ,  F16K15/025 ,  F16K15/182 ,  F16K31/504 ,  F16K31/52 ,  F16K31/60 ,  F16K11/048

摘要： An inventive lock open device for use with a poppet type check valve is disclosed. The device permits bidirectional flow of fluid or gas by defeating the check valve sealing device which permits hydrostatic testing without the need for check valve disassembly or the need for additional tooling.

公开(公告)号：US11458430B2

公开(公告)日：2022-10-04

申请号：US17037801

申请日：2020-09-30

申请人： ATLAS COPCO AIRPOWER, NAAMLOZE VENNOOTSCHAP

发明人： Prashant K. Rajput ,  Vishal Krishnarao Patil ,  Vijay Sohanlal Sharma ,  Srinivasan Venkataramani Arjune

IPC分类号： B01D46/42 ,  F16K3/28 ,  B23Q11/00 ,  B01D46/44 ,  F16K11/048 ,  B01D46/71 ,  B01D35/157

摘要： A flush valve, a dust collector provided with such a flush valve and a dust collection system, are disclosed. The flush valve includes a valve body and a valve spool. The valve body is internally provided with a fluid passageway. The valve body is provided with an inlet, a first outlet and a second outlet. The first outlet is fluidly connected to a device to be flushed. The valve spool includes a movable part, a fixed part and an elastic part, the fixed part being provided in the valve body, and the elastic part elastically connecting said fixed part to the movable part. One end of the movable part being provided with a first spool land for blocking the first outlet. The first spool land being configured to be pushed away from said first outlet by fluid in the fluid passageway when the pressure drops due to blockage.

公开(公告)号：US11448032B2

公开(公告)日：2022-09-20

申请号：US17217690

申请日：2021-03-30

申请人： SPM Oil & Gas PC LLC

发明人： Duc Thanh Tran ,  Matthew Thomas Robinson Webster ,  Ray Dicksang Pang ,  Keith Murdoch

IPC分类号： E21B33/068 ,  E21B33/038 ,  E21B43/26 ,  F04B15/02 ,  F04B23/04 ,  F04B47/00 ,  B01F23/43 ,  B01F27/05 ,  F16K5/04 ,  F16K11/048 ,  F16K31/126 ,  F04B23/06 ,  F16L41/03 ,  B01F101/49 ,  F16K5/00 ,  F16K11/00

摘要： A system for supplying fracturing fluid to a fracturing tree coupled to a wellhead comprising: a zipper module having a lower block with a first opening configured to receive the fracturing fluid, the lower block being independently rotatable at a swivel assembly around a vertical axis relative to the lower block; an upper block with a second opening configured to dispel the fracturing fluid, the upper block being independently rotatable at a swivel connection around the vertical axis; an internal flow path between the upper block and the lower block; and a fluid conduit between the zipper module and the fracturing tree comprising at least one pipe, wherein the at least one pipe defines a first straight flow path between the zipper module and the fracturing tree.

公开(公告)号：US11118608B1

公开(公告)日：2021-09-14

申请号：US17003074

申请日：2020-08-26

申请人： ROTEX Manufacturing and Engineers Private Limited

发明人： Amit Shah

IPC分类号： F15B13/04 ,  F16K31/126 ,  F16K11/048

摘要： Twin poppet mechanism (100) of a valve positioner (101) with progressively reduced leakage, comprising a poppet valve assembly (150) comprising a swivel assembly (110) and a pair of poppet valve assembly (150), a poppet assembly (320) of the poppet valve assembly (150) has a conical tilting freedom (103) around its axis of assembly (151), in a first stable state, the swivel assembly (110) tilts towards a first side (104A) and a rubbing or a lapping action is caused between the first sealing surface (241) and the outer sealing surface (332), and between an inner sealing surface (352) of the poppet body two (350) and the chamber sealing surface (316) of the guide chamber (301), in a second stable state, the swivel assembly (110) tilts towards a second side (104B) and the lapping action is caused between the second sealing surface (261) and the outer sealing surface (332), and between the inner sealing surface (352) of the poppet body two (350) and the chamber sealing surface (316) of the guide chamber (301).

公开(公告)号：US20210221185A1

公开(公告)日：2021-07-22

申请号：US17151616

申请日：2021-01-18

申请人： Dana Motion Systems Italia S.R.L.

发明人： Alessandro BENEVELLI ,  Nicola Francesco MUSCIAGNA ,  Piergiorgio TRINCHIERI

IPC分类号： B60C23/00 ,  F16K11/048 ,  B60C29/00

摘要： The present disclosure relates to a valve assembly, in particular for use in a tire inflation system, the valve assembly comprising: a valve body comprising a first fluid port and a second fluid port; a piston disposed at least partially within the valve body and configured to be moved relative to the valve body between an open position and a closed position, wherein when the piston is in the open position the first fluid port is fluidly connected with the second fluid port, and wherein when the piston is in the closed position the first fluid port is fluidly isolated from the second fluid port, wherein when the piston is in the open position the first fluid port and the second fluid port are fluidly connected with one another via a fluid channel extending through the piston. The present disclosure further relates to a tire inflation system including said valve assembly.

公开(公告)号：US20200240533A1

公开(公告)日：2020-07-30

申请号：US16750414

申请日：2020-01-23

申请人： FISHER JEON GAS EQUIPMENT (CHENGDU) CO., LTD.

发明人： Guolei Fan ,  Ping Huo ,  Yawei Xiao ,  Yanwei Lei ,  Jing Zhang

IPC分类号： F16K11/048

摘要： A fluid regulator includes an actuator assembly disposed in a valve body. A sleeve includes a cylindrical wall, a first plate, and a second plate. Each of the first plate and the second plate is disposed in a cavity of the sleeve. A stem extends through the sleeve and is axially aligned with a longitudinal axis of the body, and includes a passage extending partially through the stem. The actuator assembly includes first and second pistons. First, second, third, and fourth chambers are separately disposed between the sleeve, the first or second plate, or the first or second piston. The first and third chambers are in fluid communication, and the second and fourth chambers are in fluid communication via the passage of the stem. The actuator assembly actuates a control element in response to a fluid pressure receivable in the first, second, third, and/or fourth chambers.

公开(公告)号：US10520231B2

公开(公告)日：2019-12-31

申请号：US15743520

申请日：2016-06-29

申请人： DENSO CORPORATION

发明人： Tetsuya Itou ,  Masaaki Kawakubo

IPC分类号： F25B41/04 ,  F16K11/04 ,  F16K11/044 ,  F16K11/048 ,  F16K31/04

摘要： A first valve member switches between a first communication state, in which a first inlet passage communicates with a first outlet passage and a second inlet passage is closed, and a second communication state, in which the second inlet passage communicates with the first outlet passage and the first inlet passage is closed. A second valve member switches between an opening state and a throttle state in which a smaller volume of a fluid flows from the third inlet passage to the second outlet passage as compared to the opening state. A valve driving member switches between a first operation state, in which the first valve member sets the first communication state and the second valve member sets the opening state, and a second operation state, in which the first valve member sets the second communication state and the second valve member sets the throttle state.

公开(公告)号：US20190293061A1

公开(公告)日：2019-09-26

申请号：US16306445

申请日：2017-04-20

申请人： Fujikoki Corporation

发明人： Yoshiyuki KUME ,  Hisashi ASANO ,  Takashi SAKAMOTO ,  Masaharu ITOH

IPC分类号： F04B27/18 ,  F16K11/044 ,  F16K11/048 ,  F16K31/06

摘要： Provided is a variable-capacity compressor control valve with a simple configuration that can increase the attraction force of an electromagnetic actuator and thus can reduce the size of the control valve. A sub valve element that is a magnetic body made of the same magnetic material as or a different magnetic material from that of a plunger, which is adapted to move a main valve element in the direction to open or close the valve orifice, is fitted in and fixed to the plunger.

公开(公告)号：US10391839B2

公开(公告)日：2019-08-27

申请号：US15749130

申请日：2016-07-20

申请人： DENSO CORPORATION

发明人： Masaaki Kawakubo ,  Tetsuya Itou ,  Satoshi Itoh

IPC分类号： B60H1/32 ,  B60H1/00 ,  F16K11/04 ,  F25B29/00 ,  F25B41/04 ,  B60H1/22 ,  F16K11/044 ,  F16K11/048 ,  F16K11/16 ,  F25B6/04 ,  F25B43/00

摘要： A refrigeration cycle device includes a pre-evaporator decompression unit that decompresses refrigerant which flowed out from an exterior heat exchanger, and an evaporator passage that guides the refrigerant which flowed out from the exterior heat exchanger to a suction port of a compressor while passing through a pre-evaporator decompression unit and an evaporator. Further, the refrigeration cycle device includes a bypass passage that guides the refrigerant which flowed out from the exterior heat exchanger to the suction port of the compressor while bypassing the pre-evaporator decompression unit and the evaporator, a pre-exterior device switching unit, and a passage switching unit that opens and closes the bypass passage. Further, the pre-exterior device switching unit and the passage switching unit form a coupled valve where the pre-exterior device switching unit and the passage switching unit are mechanically coupled.