公开(公告)号：US12203554B2

公开(公告)日：2025-01-21

申请号：US18234399

申请日：2023-08-16

Applicant: Zhejiang University

Inventor： Shuo Liu ,  Sihao Fu ,  Jiajie Ma ,  Yong Cai ,  Yu Chen ,  Zhiyong Sun ,  Wanglin Lin

IPC: F16K11/06 ,  F16K31/12 ,  H02K26/00

Abstract: A pneumatic proportional valve includes a torque motor and a pneumatic rotary valve. The torque motor includes permanent magnets, magnetically permeable yokes, an upper armature, a lower armature, an upper skeleton, a skeleton column, a lower skeleton, an exciting coil, a coil skeleton, a spring support, a spring plate and load springs. The torque motor has a single coil structure with an axis of the exciting coil coinciding with a rotation axis of the armatures, and the coil is arranged between the upper armature and the lower armature. The torque motor has the upper armature and the lower armature, and the upper armature and the lower armature have a total of four armature arms, which can form eight air gaps with an upper one and a lower one working in pair, form four pairs of magnetic circuits in parallel with each other under the excitation of a control coil.

公开(公告)号：US20240401707A1

公开(公告)日：2024-12-05

申请号：US18234399

申请日：2023-08-16

Applicant: Zhejiang University

Inventor： Shuo Liu ,  Sihao Fu ,  Jiajie Ma ,  Yong Cai ,  Yu Chen ,  Zhiyong Sun ,  Wanglin Lin

IPC: F16K11/06 ,  F16K31/12 ,  H02K26/00

Abstract: A pneumatic proportional valve includes a torque motor and a pneumatic rotary valve. The torque motor includes permanent magnets, magnetically permeable yokes, an upper armature, a lower armature, an upper skeleton, a skeleton column, a lower skeleton, an exciting coil, a coil skeleton, a spring support, a spring plate and load springs. The torque motor has a single coil structure with an axis of the exciting coil coinciding with a rotation axis of the armatures, and the coil is arranged between the upper armature and the lower armature. The torque motor has the upper armature and the lower armature, and the upper armature and the lower armature have a total of four armature arms, which can form eight air gaps with an upper one and a lower one working in pair, form four pairs of magnetic circuits in parallel with each other under the excitation of a control coil.

公开(公告)号：US11913684B2

公开(公告)日：2024-02-27

申请号：US17501402

申请日：2021-10-14

Applicant: DENSO CORPORATION

Inventor： Masamichi Makihara ,  Yoshiki Katoh ,  Takahiro Maeda ,  Kuniyoshi Tanioka ,  Akira Higuchi ,  Takehito Mizunuma ,  Takuya Hamada

IPC: F16K11/06 ,  F16K11/02 ,  F16K31/53 ,  F25B25/00 ,  F25B41/20

CPC classification number: F25B25/005 ,  F16K11/02 ,  F16K11/06 ,  F16K31/535 ,  F25B41/20

Abstract: A fluid circulation circuit includes a flow passage switching valve. The flow passage switching valve includes a body and a switcher. The body includes a first inlet, a second inlet, and outlets including a first outlet. The switcher is capable of switching a passage configuration to a state in which a fluid that has flowed in from the first inlet flows out of either one of the outlets and a state in which the fluid that has flowed in from the second inlet flows out of either one of the outlets.

公开(公告)号：US10590859B2

公开(公告)日：2020-03-17

申请号：US14965265

申请日：2015-12-10

Applicant: Hamilton Sundstrand Corporation

Inventor： Todd Haugsjaahabink

IPC: F02C9/28 ,  F02C9/26 ,  F02C7/232 ,  B64D37/00 ,  F02C9/46 ,  F02C9/52 ,  F16K11/06

Abstract: A bypass valve for a fuel control includes a sleeve, a spool, and a biasing member. The sleeve has a body extending between a first end and a second. The first end defines a first bypass valve port. The body defines a second bypass valve port, a third bypass valve port, and a shutoff port. The second end defines a fourth bypass valve port. The spool is received within the inner bore and is movable between a first position and a second position. The biasing member biases the spool toward the first position.

公开(公告)号：US10450964B2

公开(公告)日：2019-10-22

申请号：US14944363

申请日：2015-11-18

Applicant: Hamilton Sundstrand Corporation

Inventor： Anthony Spagnoletti

IPC: F02C6/08 ,  F01D25/12 ,  F02C7/14 ,  F02C7/18 ,  F02C9/18 ,  F16K11/06 ,  F16K27/04

Abstract: The present disclosure relates to engine buffer systems. An engine buffer system may include a low pressure supply line and a high pressure supply line. A continuously variable valve may be coupled to and/or in fluid communication with the low pressure supply line and the high pressure supply line. The continuously variable valve may be adjusted to supply any pressure between a pressure of the low pressure supply line and a pressure of the high pressure supply line to a buffer line.

公开(公告)号：US10359124B2

公开(公告)日：2019-07-23

申请号：US15788099

申请日：2017-10-19

Applicant: Synventive Molding Solutions, Inc.

Inventor： Vito Galati ,  Zhuang Rui Tan

IPC: B29C45/23 ,  B29C45/28 ,  F16K31/06 ,  B29C45/03 ,  B29C45/27 ,  B29C45/76 ,  B29C45/82 ,  F16B13/00 ,  F16K11/06 ,  F15B13/044 ,  F15B21/08 ,  F15B13/04

Abstract: An injection molding apparatus including: a valve pin driven by an actuator, the valve pin extending axially through at least a portion of the channel length of the fluid flow channel, the fluid flow channel including a throat, downstream flow of the injection fluid being restricted by a bulb portion of the pin, the valve pin having an intermediate position where downstream flow of injection fluid is unrestricted and a fully downstream position where downstream flow of injection fluid is stopped at both the gate and at the throat, wherein the actuator is driven by a valve assembly comprised of a spool mechanically driven by first and second actuators or solenoids that each separately engage the spool at opposing axial ends to effect movement of the spool back and forth between the drive fluid flow positions.

公开(公告)号：US09874284B2

公开(公告)日：2018-01-23

申请号：US15517029

申请日：2015-10-15

Applicant: Mack & Schneider GmbH

Inventor： Steffen Bachofer

IPC: F16K11/06 ,  F16K11/074 ,  F01P7/14

CPC classification number: F16K11/0746 ,  F01P7/14 ,  F01P2007/146

Abstract: The application relates to a valve device, including a valve housing which has at least three connection openings, each of which open into a chamber of the valve device, including two sealing disc units arranged at a distance from each other, each of which lies between two adjacent chambers and has a fixed sealing disc and at least one rotatable sealing disc, wherein each of the rotatable sealing discs and the fixed sealing discs of each sealing disc unit has at least one throughflow opening in order, in at least one overlapping position of the throughflow openings, to release a throughflow cross-section between the adjacent chambers, and including an actuating shaft, which is connected to the rotatable sealing discs for conjoint rotation.

公开(公告)号：US09827701B2

公开(公告)日：2017-11-28

申请号：US14972307

申请日：2015-12-17

Applicant: Synventive Molding Solutions, Inc.

Inventor： Vito Galati ,  Zhuang Rui Tan

IPC: B29C45/23 ,  F16K11/06 ,  F16K31/06 ,  B29C45/03 ,  B29C45/76 ,  B29C45/27 ,  B29C45/28 ,  B29C45/82

CPC classification number: B29C45/231 ,  B29C45/03 ,  B29C45/2703 ,  B29C45/281 ,  B29C45/7613 ,  B29C45/82 ,  B29C2945/76006 ,  B29C2945/76083 ,  B29C2945/76277 ,  B29C2945/76384 ,  F16K11/06 ,  F16K31/061

Abstract: An injection molding apparatus including: a valve pin driven by an actuator, the valve pin extending axially through at least a portion of the channel length of the fluid flow channel, the fluid flow channel including a throat, downstream flow of the injection fluid being restricted by a bulb portion of the pin, the valve pin having an intermediate position where downstream flow of injection fluid is unrestricted and a fully downstream position where downstream flow of injection fluid is stopped at both the gate and at the throat, wherein the actuator is driven by a valve assembly comprised of a spool mechanically driven by first and second actuators or solenoids that each separately engage the spool at opposing axial ends to effect movement of the spool back and forth between the drive fluid flow positions.

公开(公告)号：US20170167390A1

公开(公告)日：2017-06-15

申请号：US14965265

申请日：2015-12-10

Applicant: Hamilton Sundstrand Corporation

Inventor： Todd Haugsjaahabink

IPC: F02C9/28 ,  F02C9/46 ,  F02C9/26 ,  F02C9/52 ,  F16K11/06 ,  B64D37/00

CPC classification number: F02C9/28 ,  B64D37/00 ,  F02C7/232 ,  F02C9/263 ,  F02C9/46 ,  F02C9/52 ,  F05D2220/323 ,  F05D2260/606 ,  F16K11/06

Abstract: A bypass valve for a fuel control includes a sleeve, a spool, and a biasing member. The sleeve has a body extending between a first end and a second. The first end defines a first bypass valve port. The body defines a second bypass valve port, a third bypass valve port, and a shutoff port. The second end defines a fourth bypass valve port. The spool is received within the inner bore and is movable between a first position and a second position. The biasing member biases the spool toward the first position.

公开(公告)号：US09651149B2

公开(公告)日：2017-05-16

申请号：US14556267

申请日：2014-12-01

Applicant: Deere & Company

Inventor： Aaron R. Kenkel

IPC: F16H61/4104 ,  F16K11/06 ,  F16K27/04 ,  F16K11/07 ,  F16K31/06 ,  B60R16/08 ,  F15B13/04 ,  B60K23/08 ,  E02F9/22

CPC classification number: F16H61/4104 ,  B60K2023/0866 ,  B60R16/08 ,  B60Y2200/411 ,  E02F9/226 ,  E02F9/2267 ,  E02F9/2282 ,  E02F9/2289 ,  F15B13/0402 ,  F16K11/06 ,  F16K11/07 ,  F16K27/04 ,  F16K27/041 ,  F16K31/0613 ,  Y10T137/86622 ,  Y10T137/8667 ,  Y10T137/86694 ,  Y10T137/8671

Abstract: An open center flushing valve for a hydraulic system including a hydraulic circuit and a fluid flushing system, where the flushing valve has multiple positions that each include a fluid exhaust path through the flushing valve. Any of the flushing valve positions couples the hydraulic circuit to the fluid flushing system through a fluid exhaust path for that position. The flushing valve can include unpowered and powered positions. The hydraulic circuit can have two sides separately coupled to the flushing valve where in a powered position, only one side of the hydraulic circuit is coupled to the fluid flushing system through the flushing valve, and in an unpowered position both sides of the hydraulic circuit are coupled to the fluid flushing system through the flushing valve. In a powered position, the lower pressure side of the hydraulic circuit can be coupled to the fluid flushing system through the flushing valve.