公开(公告)号：US20240360849A1

公开(公告)日：2024-10-31

申请号：US18688359

申请日：2022-07-26

申请人： XUZHOU XCMG EXCAVATOR MACHINERY CO., LTD.

发明人： Yuefeng JIN ,  Jiawen GENG ,  Quan YUAN ,  Jian ZHANG ,  Yuzhong DONG ,  Dongyang DU ,  Yang ZHANG ,  Benqiang SUN ,  Heng MIAO ,  Jie LU ,  Xinkui ZHANG

IPC分类号： F15B13/04 ,  F15B1/26

CPC分类号： F15B13/0401 ,  F15B1/26 ,  F15B2013/0412

摘要： A hydraulic system for a rotary implement, including an oil tank, a main pump, a control valve, and a rotary motor is provided. The oil tank is connected to an oil suction port of the main pump; an oil outlet of the main pump is connected to a P port of the control valve; a T port of the control valve is interconnected with the oil tank; and A and B ports of the control valve are connected to both ends of the rotary motor. The control valve includes a compensation valve connected to the P port and the T port, an electric proportional valve connected to the P port and the compensation valve, and an electromagnetic reversing valve connected to the compensation valve, the T port and the B port.

公开(公告)号：US12129872B2

公开(公告)日：2024-10-29

申请号：US17145528

申请日：2021-01-11

申请人： DEERE & COMPANY

发明人： Rahul Singh ,  Sumit Sunil Kamat ,  Daniel C. Jordan ,  Sourabh Mukhopadhyay

IPC分类号： F15B1/26 ,  B01D19/00 ,  B01D19/02 ,  F15B21/04 ,  F15B21/044

CPC分类号： F15B1/26 ,  B01D19/0042 ,  B01D19/02 ,  F15B21/044

摘要： Methods and apparatuses are provided for deaeration of a liquid. Liquid may be impinged onto an inclined baffle and forced through a first plurality of apertures that direct the liquid in one or more directions away from one or more outlets of a reservoir. The liquid may be passed through a second plurality of apertures. Flowing the liquid as described promotes a circuitous route of travel and provides a residence time inside of the reservoir that promotes release of entrained air.

公开(公告)号：US20240209827A1

公开(公告)日：2024-06-27

申请号：US18086793

申请日：2022-12-22

申请人： Rene Moreno

发明人： Rene Moreno

IPC分类号： F03B13/18 ,  F15B1/04 ,  F15B1/26 ,  H02K7/18

CPC分类号： F03B13/1845 ,  F15B1/04 ,  F15B1/26 ,  H02K7/1823

摘要： A wave powered hydraulic piston generator assembly for powering a generator by a hydraulic turbine and piston assembly includes a container being positioned adjacent to the shoreline of a body of water. The container has an opening having an interior surface where a piston is positioned against. A rod protrudes out from a back surface of the piston wherein an end of the rod has a first seal being moving within a cylinder. The cylinder has an inlet positioned proximate to the first end of the cylinder, whereas an outlet is positioned on a second end of the cylinder. A first conduit of a tank is connected with the outlet of the cylinder. A turbine is connected with a second conduit of the tank. The turbine has a drive shaft in mechanical communication with a generator. Furthermore, the turbine is in fluid communication with the inlet of the cylinder.

公开(公告)号：US12018705B2

公开(公告)日：2024-06-25

申请号：US17518841

申请日：2021-11-04

申请人： Deere & Company

发明人： Alex Brimeyer ,  David E. Renner ,  Michael L. Vandeven ,  Joshua R. Pierson ,  Todd M. Verhoef

IPC分类号： F15B13/02 ,  A01B63/00 ,  A01B63/108 ,  F15B1/26 ,  A01B63/10 ,  A01D41/127 ,  A01D41/14 ,  F15B1/02 ,  F15B11/08 ,  F15B13/04 ,  F15B13/044

CPC分类号： F15B13/021 ,  A01B63/008 ,  A01B63/108 ,  F15B1/26 ,  A01B63/10 ,  A01D41/127 ,  A01D41/141 ,  A01D41/145 ,  F15B1/02 ,  F15B11/08 ,  F15B13/0401 ,  F15B13/044 ,  F15B2211/30565 ,  F15B2211/3058 ,  F15B2211/3127 ,  F15B2211/426 ,  F15B2211/526 ,  F15B2211/625 ,  F15B2211/7053 ,  F15B2211/75 ,  F15B2211/76

摘要： A header assembly for an agricultural harvesting machine comprises a first frame assembly, a second frame assembly that supports a cutter, and is movable relative to the first frame assembly, a float cylinder coupled between the first frame assembly and the second frame assembly, an accumulator, a controllable reservoir, and fluidic circuitry. The fluidic circuitry comprises a first conduit forming a first fluid path that provides a flow of pressurized fluid under pressure to the float cylinder, so the float cylinder exerts a float force on the second frame assembly, a valve mechanism that is actuatable to inhibit fluid flow along the first fluid path between the accumulator and the float cylinder, a second conduit forming a second fluid path fluidically coupled to the controllable reservoir, the controllable reservoir being controllable to add fluid to the float cylinder.

公开(公告)号：US20240140762A1

公开(公告)日：2024-05-02

申请号：US17974003

申请日：2022-10-26

申请人： Brandt Industries Canada Ltd.

发明人： Alexander Skeie ,  Rick Copeland

IPC分类号： B66C13/20 ,  B66C13/44 ,  B66C23/82 ,  F15B1/26 ,  F15B13/044 ,  G05B19/416 ,  G05D16/20

CPC分类号： B66C13/20 ,  B66C13/44 ,  B66C23/82 ,  F15B1/26 ,  F15B13/044 ,  G05B19/416 ,  G05D16/2022 ,  G05D16/2024 ,  G05D16/204 ,  F15B2211/30525 ,  F15B2211/327 ,  F15B2211/63 ,  G05B2219/45006

摘要： A computer-implemented method and/or system for controlling a material handler comprises: processing, by an electronic control unit (ECU), a plurality of electronic input signals from at least one joystick; determining an adjustment for at least one of a pair of solenoids based on at least the plurality of electronic input signals from the joystick; controlling the pair of solenoids by the ECU and each solenoid acting in opposition to each of a pair of biasing elements of an open-center directional control valve to move the directional control valve to an extension position or a retraction position from a central position; determining a setpoint buildup pressure for a central passageway of the directional control valve; and actuating a constrictive solenoid of a pressure buildup valve to constrict the central passageway based on the setpoint buildup pressure whereby the constrictive passageway increases a pressure in the central passageway of the directional control valve.

公开(公告)号：US11946224B2

公开(公告)日：2024-04-02

申请号：US17909085

申请日：2021-04-07

申请人： Hitachi Construction Machinery Co., Ltd.

发明人： Seiji Hijikata ,  Yasutaka Tsuruga ,  Kenji Hiraku ,  Masatoshi Hoshino

IPC分类号： F15B1/04 ,  E02F9/22 ,  F15B1/26 ,  F15B13/02

CPC分类号： E02F9/2228 ,  E02F9/2217 ,  E02F9/2271 ,  E02F9/2292 ,  F15B1/04 ,  F15B1/26 ,  F15B13/02 ,  F15B2211/6306

摘要： The object of the present invention resides in provision of a construction machine in which a hydraulic cylinder can be driven in a high efficiency by an accumulator. To this end, the construction machine including: a hydraulic cylinder; a first accumulator that accumulates return fluid from the hydraulic cylinder with a first set pressure; a tank that stores hydraulic fluid therein; a first hydraulic pump that delivers the hydraulic fluid sucked from the tank; a hydraulic actuator that is driven by the first hydraulic pump; and a second accumulator that accumulates return fluid from the hydraulic actuator with a second set pressure, includes a first control valve placed in a first hydraulic line that connects the first accumulator and the hydraulic cylinder to each other, and a second control valve placed in a second hydraulic line that connects the second accumulator and the hydraulic cylinder to each other. The second set pressure is set to a value higher than that of the first set pressure.

公开(公告)号：US20240035586A1

公开(公告)日：2024-02-01

申请号：US17878115

申请日：2022-08-01

申请人： Sun Hydraulics, LLC

发明人： Bernd Zähe

IPC分类号： F16K31/122 ,  F16K11/044 ,  F16K37/00 ,  F16K27/02 ,  F15B15/28 ,  F15B1/26

CPC分类号： F16K31/1221 ,  F16K11/044 ,  F16K37/0041 ,  F16K27/0263 ,  F15B15/2861 ,  F15B1/26 ,  F15B2211/30

摘要： An example valve includes: a first port; a second port; a third port; a poppet configured to be subjected to (i) a first fluid force by fluid of the first port acting on the poppet in a proximal direction toward a poppet seat, and (ii) a second fluid force by fluid of the second port acting on the poppet in a distal direction; a pilot piston configured to be subjected to a pilot fluid force by a pilot fluid signal received at the third port; a check spring applying a spring force on the poppet in the proximal direction; and pilot spring applying a pilot spring force on the pilot piston in the proximal direction.

公开(公告)号：US11852171B2

公开(公告)日：2023-12-26

申请号：US17882968

申请日：2022-08-08

申请人： Microtecnica S.r.l.

发明人： Giacomo Mezzino ,  Gianfranco Salvatoriello

IPC分类号： F15B1/26 ,  F15B13/02 ,  B64C13/40 ,  B64C25/22 ,  B64C27/64 ,  F15B13/08

CPC分类号： F15B13/02 ,  B64C13/40 ,  B64C25/22 ,  B64C27/64 ,  F15B1/26 ,  F15B13/0814

摘要： There is provided a control module for a hydraulic system. The module comprises a tank and a plurality of valves. The tank is configured to store hydraulic fluid and is substantially cylindrical. The plurality of valves fluidly connect with the tank and are configured to control distribution of hydraulic fluid from the tank to one or more components of the system. The plurality of valves are spaced around a circumference of the tank. One or more passages fluidly connect the tank with at least one of the plurality of valves and/or a first of the plurality of valves with a second of the plurality of valves.

公开(公告)号：US11846283B2

公开(公告)日：2023-12-19

申请号：US17092159

申请日：2020-11-06

申请人： Project Phoenix, LLC

发明人： Thomas Afshari

IPC分类号： F15B15/18 ,  F04C14/08 ,  F04C2/18 ,  F04C14/02 ,  F04C14/24 ,  F01C1/18 ,  F03C1/06 ,  F04C11/00 ,  F04B9/105 ,  F15B1/26

CPC分类号： F04C14/08 ,  F01C1/18 ,  F03C1/0607 ,  F04B9/105 ,  F04C2/18 ,  F04C11/008 ,  F04C14/02 ,  F04C14/24 ,  F15B15/18 ,  F04C2240/402 ,  F04C2240/811 ,  F04C2270/035 ,  F04C2270/0525 ,  F04C2270/185 ,  F04C2270/19 ,  F04C2270/205 ,  F04C2270/605 ,  F15B1/26

摘要： A fluid-driven actuator system includes a fluid-driven actuator and at least one proportional control valve and at least one pump connected to the fluid-driven actuator to provide fluid to operate the fluid-driven actuator. The at least one pump includes at least one fluid driver having a prime mover and a fluid displacement assembly to be driven by the prime mover such that fluid is transferred from the pump inlet to the pump outlet. The fluid driven actuator system also includes a controller that establishes at least one of a speed and a torque of the at least one prime mover to adjust at least one of a flow in the fluid system to a flow set point and a pressure in the fluid system to pressure set point and a concurrently establishes an opening of the at least one proportional control valve to adjust at least one of the flow to the flow set point and the pressure to the pressure set point.

公开(公告)号：US20230383857A1

公开(公告)日：2023-11-30

申请号：US18322291

申请日：2023-05-23

申请人： VOLVO TRUCK CORPORATION

发明人： Hugo BEBON

IPC分类号： F16K17/19 ,  F15B1/26

CPC分类号： F16K17/19 ,  F15B1/265

摘要： A valve assembly for a fluid management system of a vehicle is provided The valve assembly includes: a valve body having an inner volume defining at least a first chamber, a second chamber, a breathing chamber in fluid communication with atmosphere, and a fluid medium flow path extending through the valve body, the fluid medium flow path having an inlet for receiving a fluid medium and an outlet for said fluid medium, said first chamber being at least partly disposed in the fluid medium flow path. A flow closing member is displaceable arranged within the valve body to control the flow of fluid medium from the inlet to the outlet via the first chamber. The flow closing member is displaceable between an open position, in which fluid medium may flow in the fluid medium flow path from the inlet to the outlet via the first chamber, and a closed position, in which said flow closing member prevents fluid medium to flow in the fluid medium flow path from the inlet to the outlet.