公开(公告)号：US12031637B1

公开(公告)日：2024-07-09

申请号：US18540768

申请日：2023-12-14

Applicant: HANGZHOU CITY UNIVERSITY ,  ZHEJIANG UNIVERSITY

Inventor： Qilin Jin ,  Qiang Zuo ,  Qianqian Lu ,  Yu Huang ,  Longlong Leng ,  Jiaqi Hu ,  Yongzhuang Liu ,  Binbin Chen

IPC: F16K31/04 ,  F15B13/04 ,  F15B13/044 ,  F16K11/078 ,  F16K31/40

CPC classification number: F16K31/043 ,  F15B13/0402 ,  F15B13/0406 ,  F15B13/0444 ,  F16K11/078 ,  F16K31/047 ,  F16K31/40

Abstract: A two-dimensional electro-hydraulic servo valve based on a dual-redundancy transmission mechanism, including a valve body, a valve spool inside the valve body, and a valve sleeve on an outside of the valve spool. A low-pressure chamber is disposed between the valve spool and the valve sleeve; the valve body is connected to a servomotor through a transmission mechanism; the transmission mechanism includes a spool fork and a motor toggle, and each end of the motor toggle is connected to a spherical connector; the spherical connector is rotatable with a centerline of a connection end of the motor toggle as an axis; each end of the spool fork is slidably connected to a corresponding spherical connector; a middle part of the spool fork is connected to the valve spool, and a middle part of the motor toggle is connected to a rotor of the servomotor.

公开(公告)号：US20230332628A1

公开(公告)日：2023-10-19

申请号：US18335903

申请日：2023-06-15

Applicant: AIRBUS OPERATIONS LIMITED

Inventor： Andrew David SADLER

IPC: F15B15/18 ,  B64C25/22 ,  B64C25/24 ,  F15B13/044

CPC classification number: F15B15/18 ,  B64C25/22 ,  B64C25/24 ,  F15B13/0444 ,  F15B2211/20515

Abstract: Aircraft power system is disclosed having a hydraulic reservoir, a bi-directional hydraulic pump for pumping hydraulic fluid to and from the reservoir, and an electric motor. The electric motor is connectable to a first driveable component of the aircraft such that the electric motor is arranged to drive the first driveable component of the aircraft. The hydraulic pump is connectable to the first driveable component of the aircraft such that the hydraulic pump is arranged to pump hydraulic fluid from the reservoir to drive the first driveable component of an aircraft. Thus, in a first driveable mode of operation, the first driveable component is driven by both the electric motor and the hydraulic pump.

公开(公告)号：US10024444B2

公开(公告)日：2018-07-17

申请号：US14380420

申请日：2012-11-16

Applicant: Moog Inc.

Inventor： John Kopp ,  Christopher Mazurkiewicz

IPC: F16K11/07 ,  F16K11/078 ,  F15B13/04 ,  F15B13/044 ,  F16K31/04

CPC classification number: F16K11/078 ,  F15B13/0402 ,  F15B13/0444 ,  F16K11/07 ,  F16K31/04 ,  Y10T137/86501

Abstract: The improved servovalve broadly (20) includes: a body (21) having an axis of elongation (y-y), a portion of the body defining a cylinder (43) having an axis (x-x) substantially perpendicular to the body axis; a valve member (44) movably mounted in the cylinder, and adapted to be moved off-null in either direction along the cylinder axis to selectively meter the flows of fluid between a plurality of ports defined between the spool and cylinder; a rotor (58) mounted on the body for rotation about the body axis; a motor (69) acting between the body and rotor, and selectively operable to cause the rotor to rotate in a desired angular direction relative to the body; and a quill-like transfer member (64) acting between the rotor and valve spool.

公开(公告)号：US20170254431A1

公开(公告)日：2017-09-07

申请号：US15445343

申请日：2017-02-28

Applicant: Moog Inc.

Inventor： John Kopp

IPC: F16K31/04 ,  H02K3/28 ,  H02K1/12 ,  F16K11/07 ,  H02K1/27

CPC classification number: F16K31/04 ,  F15B13/0435 ,  F15B13/0444 ,  F16K11/07 ,  F16K31/047 ,  F16K31/0613 ,  F16K31/124 ,  H01F7/06 ,  H02K1/12 ,  H02K1/2706 ,  H02K3/28

Abstract: A servovalve comprising a motor, a motor bias mechanism, a first stage valve having a first position, a second stage valve movable with movement of the first valve, a reference member in fluid communication with the second valve, a transfer link acting between the first valve and the reference member, an eccentric drive acting between the motor and transfer link, wherein movement of the motor causes the transfer link to move the first valve, movement of the first valve causes the second valve member to move, movement of the second valve applies on the reference member a pressure differential from a load, the pressure differential on the reference member causes movement of the reference member, and movement of the reference member causes the transfer link to move the first valve back to the first position.

公开(公告)号：US20160123355A1

公开(公告)日：2016-05-05

申请号：US14897137

申请日：2014-06-11

Applicant: BLAGDON ACTUATION RESEARCH LIMITED

Inventor： Andrew John COLLINS

IPC: F15B13/04 ,  F15B13/044

CPC classification number: F15B13/0406 ,  F15B13/0444 ,  F15B2211/6336 ,  F16K5/0407 ,  F16K11/0856

Abstract: A servo valve comprises a fluid inlet, a fluid outlet and a cylindrical spool. The spool has a surface including a curvilinear groove and is mounted for rotational movement between a first position in which the surface of the spool covers at least one of the fluid outlet and the fluid inlet and a second position in which the groove is aligned with the fluid inlet and the fluid outlet.

Abstract translation: 伺服阀包括流体入口，流体出口和圆柱形阀芯。 卷轴具有包括曲线槽的表面，并且安装成用于在第一位置和第二位置之间进行旋转运动，在第一位置中，卷轴的表面覆盖流体出口和流体入口中的至少一个，在第二位置， 流体入口和流体出口。

公开(公告)号：US09150091B2

公开(公告)日：2015-10-06

申请号：US13498434

申请日：2010-09-30

Applicant: Tsuneo Endo ,  Shigeru Ibaraki ,  Kazutaka Takahashi ,  Daiki Sato ,  Seiichiro Ishikawa

Inventor： Tsuneo Endo ,  Shigeru Ibaraki ,  Kazutaka Takahashi ,  Daiki Sato ,  Seiichiro Ishikawa

IPC: B60K6/12 ,  B60K6/40 ,  F02N7/08 ,  F16K3/26 ,  F16K3/34 ,  F15B13/04 ,  F15B13/044

CPC classification number: B60K6/12 ,  B60K6/40 ,  F02N7/08 ,  F15B13/0406 ,  F15B13/0444 ,  F16K3/262 ,  F16K3/34 ,  F16K5/0414 ,  Y02T10/6208 ,  Y02T10/6282 ,  Y10T137/3127 ,  Y10T137/86533 ,  Y10T137/86702 ,  Y10T137/8671 ,  Y10T137/86734 ,  Y10T137/86751 ,  Y10T137/88022

Abstract: A liquid pressure circuit is provided in which connecting an accumulator (22) to a high pressure liquid path (Lh) by opening a cut-off valve (24a) and connecting a intake liquid path (Li) to the high pressure liquid path (Lh) by means of a switch valve (24b) enables a pump/motor (M) to be operated as a motor by liquid stored under pressure in the accumulator (22), connecting the accumulator (22) to the high pressure liquid path (Lh) by opening the cut-off valve (24a) and connecting the intake liquid path (Li) to a low pressure liquid path (Ll) by means of the switch valve (24b) enables the pump/motor (M) to be operated as a pump to thus store liquid of a tank (21) under pressure in the accumulator (22), and closing the cut-off valve (24a) and connecting the intake liquid path (Li) to the high pressure liquid path (Lh) by means of the switch valve (24b) enables the pump/motor (M) to rotate without load; it is therefore possible to switch between three circuits, that is, drive (motor operation), regeneration (pump operation), and neutral (load-free running) by a simple structure with a small number of components.

Abstract translation: 提供一种液压回路，其通过打开截止阀（24a）并将进气液路径（Li）连接到高压液体通路（Lh）而将蓄能器（22）连接到高压液体通路（Lh） ）通过开关阀（24b）使得泵/马达（M）能够通过在储存器（22）中的压力下储存的液体作为电动机操作，将蓄能器（22）连接到高压液体路径（Lh ）通过打开截止阀（24a）并且通过开关阀（24b）将进气液路径（Li）连接到低压液体通路（L1）使得泵/马达（M）能够作为 一个泵，用于将蓄液器（21）的液体在压力下储存在蓄能器（22）中，并且关闭截止阀（24a）并将进气流路（Li）连接到高压液体通路（Lh）上 开关阀（24b）的装置使得泵/​​马达（M）能够无负载地旋转; 因此通过具有少量部件的简单结构，可以在三个电路之间切换，即驱动（电动机操作），再生（泵操作）和中性（无负载运行）。

公开(公告)号：US20150069278A1

公开(公告)日：2015-03-12

申请号：US14373805

申请日：2012-02-09

Applicant: John Kopp

Inventor： John Kopp

IPC: F15B13/044 ,  F16K31/04

CPC classification number: F15B13/0444 ,  F15B13/044 ,  F16K31/042 ,  Y10T137/86622

Abstract: A valve (210) comprising a motor (221) having an output shaft (231) orientated about a motor axis (230), a hydraulic valve having a drive spool (224) configured to move from a first position to a second position, a mechanical linkage (222) between the output shaft (231) and the drive spool (224) having a sleeve (232) mechanically coupled to the output shaft (231), a pole shaft (233) configured for sliding engagement in a direction generally perpendicular to the motor axis, a link (235) connected to the pole shaft (233) by a pivot joint (234), a drive shaft (252) coupled to the link (235) and rotatable about a drive axis, the drive shaft (252) having an end portion to engage and apply a force to the spool (224), and a spring (223) to provide a bias between the pole shaft (233) and the sleeve (232), such that a distance between the motor axis and the pivot joint multiplied by a distance between the drive axis and the applied force is less than a distance between the drive axis and the pivot joint.

Abstract translation: 一种包括电机（221）的阀门（210），其具有围绕马达轴线（230）定向的输出轴（231）;液压阀，其具有构造成从第一位置移动到第二位置的驱动卷轴（224） 在输出轴（231）和具有机械联接到输出轴（231）的套筒（232）的驱动卷轴（224）之间的机械联动装置（222），被配置为在大致垂直的方向上滑动接合的极轴 通过枢转接头（234）连接到极轴（233）的连杆（235），联接到连杆（235）并可围绕驱动轴线旋转的驱动轴（252），驱动轴（ 252），其具有接合并向所述卷轴（224）施加力的端部;以及弹簧（223），用于在所述极轴（233）和所述套筒（232）之间提供偏置，使得所述马达 并且枢轴关节乘以驱动轴与所施加的力之间的距离小于驱动轴和pi之间的距离 投票联合

公开(公告)号：US20140265169A1

公开(公告)日：2014-09-18

申请号：US14212359

申请日：2014-03-14

Applicant: Levant Power Corporation

Inventor： Marco Giovanardi ,  Clive Tucker ,  Ross J. Wendell ,  Zackary Martin Anderson ,  John Giarratana ,  Richard Anthony Zuckerman ,  Colin Patrick O'Shea ,  Vladimir Gorelik ,  Tyson David Sawyer ,  Jonathan R. Leehey ,  Johannes Schneider ,  Robert Driscoll ,  Patrick W. Neil

IPC: B60G17/016

CPC classification number: B60G17/016 ,  B60G15/10 ,  B60G2202/413 ,  B60G2204/11 ,  B60G2400/0511 ,  B60G2400/0521 ,  B60G2400/60 ,  B60G2800/70 ,  F04B49/20 ,  F15B13/0444 ,  F16K11/065 ,  F16K31/12

Abstract: Various embodiments related to hydraulic actuators and active suspension systems as well as their methods of use are described.

Abstract translation: 描述与液压致动器和主动悬架系统相关的各种实施例及其使用方法。

公开(公告)号：US20120237362A1

公开(公告)日：2012-09-20

申请号：US13498434

申请日：2010-09-30

Applicant: Tsuneo Endo ,  Shigeru Ibaraki ,  Kazutaka Takahashi ,  Daiki Sato ,  Seiichiro Ishikawa

Inventor： Tsuneo Endo ,  Shigeru Ibaraki ,  Kazutaka Takahashi ,  Daiki Sato ,  Seiichiro Ishikawa

IPC: F04B49/00

CPC classification number: B60K6/12 ,  B60K6/40 ,  F02N7/08 ,  F15B13/0406 ,  F15B13/0444 ,  F16K3/262 ,  F16K3/34 ,  F16K5/0414 ,  Y02T10/6208 ,  Y02T10/6282 ,  Y10T137/3127 ,  Y10T137/86533 ,  Y10T137/86702 ,  Y10T137/8671 ,  Y10T137/86734 ,  Y10T137/86751 ,  Y10T137/88022

Abstract: A liquid pressure circuit is provided in which connecting an accumulator (22) to a high pressure liquid path (Lh) by opening a cut-off valve (24a) and connecting a intake liquid path (Li) to the high pressure liquid path (Lh) by means of a switch valve (24b) enables a pump/motor (M) to be operated as a motor by liquid stored under pressure in the accumulator (22), connecting the accumulator (22) to the high pressure liquid path (Lh) by opening the cut-off valve (24a) and connecting the intake liquid path (Li) to a low pressure liquid path (Ll) by means of the switch valve (24b) enables the pump/motor (M) to be operated as a pump to thus store liquid of a tank (21) under pressure in the accumulator (22), and closing the cut-off valve (24a) and connecting the intake liquid path (Li) to the high pressure liquid path (Lh) by means of the switch valve (24b) enables the pump/motor (M) to rotate without load; it is therefore possible to switch between three circuits, that is, drive (motor operation), regeneration (pump operation), and neutral (load-free running) by a simple structure with a small number of components.

Abstract translation: 提供一种液压回路，其通过打开截止阀（24a）并将进气液路径（Li）连接到高压液体通路（Lh）而将蓄能器（22）连接到高压液体通路（Lh） ）通过开关阀（24b）使得泵/马达（M）能够通过在储存器（22）中的压力下储存的液体作为电动机操作，将蓄能器（22）连接到高压液体路径（Lh ）通过打开截止阀（24a）并且通过开关阀（24b）将进气液路径（Li）连接到低压液体通路（L1）使得泵/马达（M）能够作为 一个泵，用于将蓄液器（21）的液体在压力下储存在蓄能器（22）中，并且关闭截止阀（24a）并将进气流路（Li）连接到高压液体通路（Lh）上 开关阀（24b）的装置使得泵/​​马达（M）能够无负载地旋转; 因此通过具有少量部件的简单结构，可以在三个电路之间切换，即驱动（电动机操作），再生（泵操作）和中性（无负载运行）。

公开(公告)号：US07066189B2

公开(公告)日：2006-06-27

申请号：US10739800

申请日：2003-12-18

Applicant: Stephen J. Tranovich ,  Phillip S. Gross

Inventor： Stephen J. Tranovich ,  Phillip S. Gross

IPC: F15B13/044

CPC classification number: F16K37/0041 ,  F15B13/0402 ,  F15B13/0444 ,  F15B19/005 ,  F16K31/046 ,  Y10T137/0318 ,  Y10T137/8242 ,  Y10T137/86622

Abstract: Provided is a servovalve system for regulating fluid flowing within a fluid circuit. The servovalve system comprises a housing, a spool slidably disposed within the housing, a stepper motor operatively connected to the spool, and a controller and a position sensor electronically connected to the stepper motor. The controller generates driver signals representative of a desired amount of stepper motor rotation in order to cause the stepper motor to effectuate spool motion relative to the housing. The position sensor senses an actual amount of stepper motor rotation and generates a quantity of position signals representative thereof. The controller determines a signal ratio of the quantity of the position signals to the quantity of the driver signals and generates a diagnostic signal when the signal ratio reaches a threshold value representative of a predetermined level of mechanical resistance of spool motion relative to the housing.

Abstract translation: 提供了一种用于调节在流体回路内流动的流体的伺服阀系统。 伺服阀系统包括壳体，可滑动地设置在壳体内的阀芯，可操作地连接到阀芯的步进电机，以及电连接到步进电机的控制器和位置传感器。 控制器产生表示步进马达旋转所需量的驱动信号，以使步进马达实现相对于壳体的线轴运动。 位置传感器感测步进电机旋转的实际量，并产生代表其的位置信号量。 控制器确定位置信号量与驾驶员信号量的信号比，并且当信号比达到代表相对于壳体的线轴运动的预定水平的机械阻力的阈值时，产生诊断信号。