公开(公告)号：US20240125338A1

公开(公告)日：2024-04-18

申请号：US18546412

申请日：2022-01-31

申请人： HYDAC Mobilhydraulik GmbH

发明人： Sascha Alexander Biwersi ,  Kai Sumpf

IPC分类号： F15B13/044 ,  F16K11/07 ,  F16K31/04 ,  F16K31/53

CPC分类号： F15B13/0444 ,  F16K11/07 ,  F16K31/04 ,  F16K31/53

摘要： Disclosed is a valve device, comprising at least one valve piston arranged in a valve housing in a longitudinally displaceable manner, which valve piston is moved by means of a drive in conjunction with the assigned drive train and interconnects individual fluid ports present in the valve housing in a fluid-conveying manner or separates them from one another. A sensor device monitors the respective positions of the drive train and thus the respective positions of the valve piston in the valve housing.

公开(公告)号：US20240092157A1

公开(公告)日：2024-03-21

申请号：US18084423

申请日：2022-12-19

申请人： Kimberley Anne Hayes

发明人： Kimberley Anne Hayes

IPC分类号： B60K3/00 ,  B60B19/00 ,  B60B19/12 ,  F15B13/044 ,  G05D1/00

CPC分类号： B60K3/00 ,  B60B19/003 ,  B60B19/12 ,  F15B13/044 ,  G05D1/0016 ,  F15B2211/3052 ,  F15B2211/30525

摘要： A non-electric robotic crawler platform system and method for logically controlling a pneumatically driven multidirectional multi-motor crawler platform in a confined space that can include Zone 0 and 1 spaces. The system can include a robotic crawler platform and an air logic control system. The robotic crawler platform can include wheels and pneumatic motors. The pneumatic motors can be connected to the wheels. Wheels can be polymer, magnetic, rollers, sprockets for track driven system and other motion systems. The air logic control system can be in fluid communication with the pneumatic motors. The robotic crawler platform and the air logic control system are non-electric. The robotic crawler platform and the air logic control system are made from materials having anti-static properties. A user can provide motion control input to the air logic control system to control directional motion of the robotic crawler platform by controlling any one of or any combination of the pneumatic motors in either a forward or reverse rotation direction. Precision can be obtained through flow/pressure controls either onboard the robotic platform to the motors or exhaust controls plumed exhaust flow regulators from the air piloted shuttle valves.

公开(公告)号：US11898327B2

公开(公告)日：2024-02-13

申请号：US17837255

申请日：2022-06-10

申请人： KUBOTA CORPORATION

发明人： Kohei Nagao ,  Yuji Fukuda

IPC分类号： E02F9/22 ,  F15B15/20 ,  F15B13/044 ,  E02F9/20

CPC分类号： E02F9/2228 ,  E02F9/2004 ,  E02F9/2285 ,  F15B13/044 ,  F15B15/20 ,  E02F9/2292

摘要： A hydraulic system for a working machine includes a hydraulic pump to output a hydraulic fluid, an operation device operable to supply a pilot fluid in accordance with an amount by which the operation device is operated, a hydraulic actuator to be operated by the hydraulic fluid, a pilot fluid passage connected to the operation device, a first control valve connected to the pilot fluid passage and to be operated by the pilot fluid to control a flow of the hydraulic fluid, a second control valve to be operated by the pilot fluid to control a flow of the hydraulic fluid, a proportional valve to change a pressure of the pilot fluid to operate the second control valve, a pressure detector provided in the pilot fluid passage to detect a pressure in the pilot fluid passage, and a controller to control the proportional valve based on the pressure.

公开(公告)号：US20230358021A1

公开(公告)日：2023-11-09

申请号：US18245709

申请日：2021-09-16

申请人： CNH Industrial Italia S.p.A.

发明人： Adriano Garramone ,  Andrea Gravili ,  Stefano Liberti ,  Antonio Venezia

IPC分类号： E02F9/22 ,  E02F9/26 ,  F15B13/044

CPC分类号： E02F9/2203 ,  E02F9/265 ,  F15B13/044 ,  F15B2211/857

摘要： A control method for executing a floating function of a boom in a work vehicle includes determining that a predetermined floating function activation command has been inputted by the operator by means of a command input means. When the floating function activation command has been inputted by the operator, acquiring, a signal or data indicative of the current position of the boom along a travel path of the boom over time, the travel path including a first section between a boom full extension position and a deceleration position, a second section between the deceleration position and a grounding position, and a third section between the grounding position and a full retract position, and moving the boom from the current position, determined based on the signal or data indicative of the position of the boom, to the full retract position.

公开(公告)号：US20230340974A1

公开(公告)日：2023-10-26

申请号：US18137585

申请日：2023-04-21

申请人： ZF CV SYSTEMS GLOBAL GMBH

发明人： Marcin CHAMOT ,  Maciej SEMENIUK ,  Frank Adrianus Cornelis JOSEPHUS VAN SON

IPC分类号： F15B21/04 ,  B01D53/26 ,  B01D53/30 ,  F15B13/044

CPC分类号： F15B21/04 ,  B01D53/26 ,  B01D53/30 ,  F15B13/044 ,  B01D2257/80 ,  B01D2259/4566

摘要： An air processing unit for providing compressed air to a supply port for use in a pneumatic system with a pneumatic unit pneumatically connected to the supply port. The air processing unit comprises an inlet port for receiving the compressed air from an electrically controlled compressed air supply. An air drying unit having an input port pneumatically connected to the inlet port and configured to dry the compressed air received, a supply line configured to supply dried compressed air, a return flow control unit comprising an electrically controlled valve are also included in the air processing unit. The electrically controlled valve is provided as a single and only electrically controlled valve of the return flow control unit.

公开(公告)号：US20230304514A1

公开(公告)日：2023-09-28

申请号：US18024789

申请日：2021-09-06

申请人： RHEINISCH-WESTFÄLISCHE TECHNISCHE HOCHSCHULE (RWTH) AACHEN KÖRPERSCHAFT DES ÖFFENTILCHEN RECHTS

发明人： Olivier Georg REINERTZ ,  Katharina Schmitz

IPC分类号： F15B13/044

CPC分类号： F15B13/044 ,  F15B2211/6653 ,  F15B2211/526

摘要： A gas-powered drive system has a drive which includes a first chamber and a second chamber which are separated from one another by a piston. One of the chambers is connected to a gas source to drive the work element and the other chamber is connected via an exhaust air throttle to a gas sink by means of a reversing valve to movement of the piston. A control valve is assigned to the driving chamber through which the driving chamber can be filled with gas from the gas source. The opening cross-section of the control valve is set as a function of a control pressure.

公开(公告)号：US20230294648A1

公开(公告)日：2023-09-21

申请号：US18121583

申请日：2023-03-14

申请人： HL MANDO CORPORATION

发明人： Chungjae LEE ,  I Jin YANG ,  Heejun KIM ,  Chanhui LEE

IPC分类号： F15B13/044 ,  B60T15/02

CPC分类号： F15B13/044 ,  B60T15/028 ,  F15B2211/615

摘要： A brake driving apparatus includes a hydraulic valve block including a vent channel for discharging air to the outside, an electronic control device that includes an electrical component housing open in a direction of the vent channel of the hydraulic valve block and having a ventilation hole connected to an internal space and a filter attached to the electrical component housing to block the ventilation hole so that air can pass therethrough, and is supported by one side of the hydraulic valve block, and a vent sealing member that seals a space between the hydraulic valve block and the electronic control device and surrounds the vent channel, the ventilation hole, and the filter.

公开(公告)号：US11731574B2

公开(公告)日：2023-08-22

申请号：US17318970

申请日：2021-05-12

申请人： Advanced Concepts in Manufacturing LLC

发明人： Mike Syrcle ,  Eric Wellington

IPC分类号： F15B13/02 ,  A63G31/00 ,  B60R21/02 ,  F15B15/14 ,  F15B15/06 ,  F15B13/044 ,  B60R21/00 ,  F15B13/04

CPC分类号： B60R21/02 ,  A63G31/00 ,  F15B13/027 ,  F15B13/044 ,  F15B15/06 ,  F15B15/1433 ,  F15B15/1442 ,  B60R2021/0097 ,  F15B2013/0409 ,  F15B2211/30505

摘要： Passenger restraint systems are provided. The restraint systems can include: a passenger seat supported by a frame; a restraint bar pivotably attached to the frame; and at least one piston operably engaged between the restraint bar and the frame. Restraint system pistons are provided. The pistons can include: a central chamber housing a piston head and rod; a fluid reservoir in fluid communication with the central chamber; and at least one electromechanical valve operable between an open and a closed position. Methods for restraining a passenger within a seat are also provided.

公开(公告)号：US11703067B1

公开(公告)日：2023-07-18

申请号：US17956947

申请日：2022-09-30

申请人： HANGZHOU CITY UNIVERSITY ,  SHANGHAI MARINE EQUIPMENT RESEARCH INSTITUTION

发明人： Qiang Zuo ,  Xian Zhang ,  Yaolan Jin ,  Zhuhua Deng ,  Wei Shao ,  Pengfei Wang ,  Jie Xiong ,  Liying Lou ,  Yanwei Zhao ,  Longlong Leng

IPC分类号： F15B13/04 ,  F16K31/04 ,  F16K27/04 ,  F15B13/044

CPC分类号： F15B13/0402 ,  F15B13/0444 ,  F16K27/041 ,  F16K31/047

摘要： An electro-hydraulic servo valve, which has an adjustable null position and can be directly driven by the motor, is provided and includes four parts: a slide valve assembly, a two-dimensional motor, a magnet resetting-to-null mechanism, and a displacement sensor, and the four parts are set coaxially arranged. The slide valve assembly is a conventional two-dimensional servo valve structure. The two-dimensional motor may directly drive the valve core to rotate to further control a size of an opening opened by a valve. The magnet resetting-to-null mechanism is configured to reset the valve to the null position. The displacement sensor may monitor a position of the valve core in real-time and feedback signals to achieve closed-loop controlling.

公开(公告)号：US20230175533A1

公开(公告)日：2023-06-08

申请号：US18063651

申请日：2022-12-08

申请人： TEAM Industries, Inc.

发明人： Alexander C. Yudell

IPC分类号： F15B13/04 ,  F15B13/044

CPC分类号： F15B13/0402 ,  F15B13/0417 ,  F15B13/0442 ,  F15B2211/255 ,  F15B2211/20576

摘要： A fixed displacement hydraulic pump match flow demand control system that includes a spool valve, a plurality of fixed displacement pumps and a control valve is provided. The spool valve includes a spool. The spool is configured to shuttle within a chamber of a housing based at least in part on a pressure difference between a first end and the second end of the chamber. A fluid flow from each fixed displacement pump of the plurality of fixed displacement pumps is in fluid communication with an associated input port to the spool valve. At least one output port of the spool valve is in fluid communication with a hydraulically operated device and at least one of another output port is in fluid communication with a return. The control valve is configured to adjust the location of the spool in the chamber to regulate fluid flow to the hydraulically operated device.