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公开(公告)号：US20240425104A1
公开(公告)日：2024-12-26
申请号：US18822691
申请日：2024-09-03
Applicant: Parker-Hannifin Corporation
Inventor： Hao Zhang , Raymond Collett , Rajneesh Kumar , Qiang Wang , Miao Zhang , James Howland
Abstract: A hydraulic system for a work machine comprising a priority circuit including at least a first priority actuator and a priority control valve for controlling the supply of hydraulic fluid to the first priority actuator and for providing a load sense signal indicative of the load acting on the first priority actuator; an auxiliary circuit including at least a first auxiliary actuator and at least a first auxiliary control valve for controlling the supply of hydraulic fluid to the first auxiliary actuator; at least a first pump for producing a flow of hydraulic fluid; and a priority valve for distributing the flow from the pump to the priority circuit and auxiliary circuit for operating the respective actuators thereof, with priority being given to the priority circuit as a function of the load sense signal.
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公开(公告)号：US10941542B2
公开(公告)日：2021-03-09
申请号：US17027834
申请日：2020-09-22
Applicant: Parker-Hannifin Corporation
Inventor： Nicholas N. White , James Howland , Hao Zhang , Blake Carl
Abstract: A hydraulic system for recovering potential energy of a load implement of a mobile construction vehicle. The hydraulic system includes first and second actuators and control valving. The first and second actuators are configured to be coupled to the load implement for controlling raising and lowering of the load element. The control valving is operable between a first position at which, during a lowering of the load implement, the control valving directs hydraulic fluid from one of the first and second actuators to an accumulator to charge the accumulator, and a second position at which the control valving directs hydraulic fluid from the accumulator to one or more of the first and second actuators to power the one or more of the first and second actuators to raise the load element.
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公开(公告)号：US20150361970A1
公开(公告)日：2015-12-17
申请号：US14763674
申请日：2014-02-04
Applicant: PARKER-HANNIFIN CORPORATION
Inventor： Nicholas N. White , Blake Carl , Tim Beck , Raymond E. Collett , Christopher Parafinczuk , Thomas Biagi , James Howland , Hao Zhang
CPC classification number: F04B27/005 , F04B25/00 , F04B35/002 , F04B35/04 , F04B39/0016 , F04B39/10 , F04B41/04 , F04B49/22 , F04B53/143 , F04B53/16
Abstract: A compressor is provided suitable for compressing natural gas from a pressure associated with a residential gas supply to a pressure suitable for an automotive gas tank. The compressor utilizes a par of pneumatic cylinders driven by a hydraulic cylinder to compress the gas in a multi-stage process. Various embodiments are provided with respect to the gas compressor portion and the drive portion. A pressure boost system is also provided which utilizes an internal control valve and internal orifice through the piston of one of the pneumatic cylinders.
Abstract translation: 提供一种压缩机，其适于将天然气从与住宅气体供应相关联的压力压缩至适合于汽车气体罐的压力。 压缩机利用由液压缸驱动的一系列气动缸在多级过程中压缩气体。 关于气体压缩机部分和驱动部分提供了各种实施例。 还提供了一种增压系统，其利用内部控制阀和通过气缸中的一个的活塞的内部孔口。
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公开(公告)号：US10024341B2
公开(公告)日：2018-07-17
申请号：US14764794
申请日：2014-01-30
Applicant: Parker-Hannifin Corporation
Inventor： Hao Zhang , Jeff Cullman , Raymond Collett , James Howland , Nick White , Patrick Stegemann
Abstract: A hybrid swing drive system (1) of a hydraulic construction machine includes a variable displacement hydraulic swing pump (3) operable by a prime mover (2); a hydraulic swing motor (16) for performing a swing function of the machine; an accumulator (10); a controller (244); a swing control valve assembly (15) disposed in a first hydraulic path extending from the swing pump to the swing motor, the swing control valve assembly having a first position fluidly connecting the swing pump to a first side of the swing motor and a second position fluidly connecting the swing pump to a second side of the swing motor; and an accumulator control valve (12) having an open position fluidly connecting the accumulator to the first hydraulic path at an accumulator control valve connection point and a closed position fluidly isolating the accumulator from the first hydraulic path.
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公开(公告)号：US09879403B2
公开(公告)日：2018-01-30
申请号：US14910339
申请日：2014-08-08
Applicant: Parker-Hannifin Corporation
Inventor： Nicholas N. White , James Howland , Hao Zhang
IPC: E02F9/12 , E02F9/22 , E02F9/26 , G01C19/00 , B66C23/86 , F15B1/033 , F15B1/04 , F15B11/08 , F15B13/04 , G01C19/04
CPC classification number: E02F9/123 , B66C23/86 , E02F9/2217 , E02F9/2253 , E02F9/2285 , E02F9/2296 , E02F9/265 , F15B1/033 , F15B1/04 , F15B11/08 , F15B13/0401 , F15B2211/20546 , F15B2211/255 , F15B2211/405 , G01C19/00 , G01C19/04
Abstract: A hydraulic machine includes an undercarriage; a rotating structure rotatably mounted on the undercarriage and configured to rotate with and with respect to the undercarriage; a first controller configured to receive user input and configured; a user interface configured to accept commands from a user and output a command signal to the controller; and a first gyroscope fixed to the rotating structure and electrically connected to the controller and configured to provide a data signal of rotation information of the rotating structure to the controller. An axis of rotation of the gyroscope is parallel to the axis of rotation of the rotating structure. The controller is configured to generate a control signal to control the rotating structure and cause the rotating structure to rotate with respect to the undercarriage based on the command signal from the user interface and the data signal from the first gyroscope.
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Patent Agency Ranking
公开(公告)号：US20160010663A1
公开(公告)日：2016-01-14
申请号：US14764794
申请日：2014-01-30
Applicant: PARKER-HANNIFIN CORPORATION
Inventor： Hao Zhang , Jeff Cullman , Raymond Collett , James Howland , Nick White , Patrick Stegemann
CPC classification number: F15B11/08 , E02F9/128 , E02F9/2066 , E02F9/2217 , E02F9/2285 , E02F9/2289 , F15B1/024 , F15B21/14 , F15B2201/00 , F15B2211/20523 , F15B2211/20546 , F15B2211/20569 , F15B2211/20576 , F15B2211/212 , F15B2211/30575 , F15B2211/30595 , F15B2211/6309 , F15B2211/6336 , F15B2211/7058 , F15B2211/715 , F15B2211/88
Abstract: A hybrid swing drive system (1) of a hydraulic construction machine includes a variable displacement hydraulic swing pump (3) operable by a prime mover (2); a hydraulic swing motor (16) for performing a swing function of the machine; an accumulator (10); a controller (244); a swing control valve assembly (15) disposed in a first hydraulic path extending from the swing pump to the swing motor, the swing control valve assembly having a first position fluidly connecting the swing pump to a first side of the swing motor and a second position fluidly connecting the swing pump to a second side of the swing motor; and an accumulator control valve (12) having an open position fluidly connecting the accumulator to the first hydraulic path at an accumulator control valve connection point and a closed position fluidly isolating the accumulator from the first hydraulic path.
Abstract translation: 液压施工机械的混合摆动驱动系统（1）包括可由原动机（2）操作的可变排量液压摆动泵（3）。 用于执行机器的摆动功能的液压回转马达（16）; 蓄电池（10）; 控制器（244）; 摆动控制阀组件（15），其布置在从所述回转泵延伸到所述回转马达的第一液压路径中，所述回转控制阀组件具有将所述回转泵流体连接到所述回转马达的第一侧的第一位置和第二位置 将回转泵流体地连接到回转马达的第二侧; 以及蓄能器控制阀（12），其具有在累积器控制阀连接点处的蓄能器与第一液压路径流体连接的打开位置和将蓄能器与第一液压路径流体隔离的关闭位置。
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公开(公告)号：US20210309287A1
公开(公告)日：2021-10-07
申请号：US17234120
申请日：2021-04-19
Applicant: Parker-Hannifin Corporation
Inventor： Hao Zhang , Raymond Collett , Rajneesh Kumar , Qiang Wang , Miao Zhang , James Howland
Abstract: A hydraulic system (40) for a work machine comprising a priority circuit (41) including at least a first priority actuator (47, 48) and a priority control valve (58) for controlling the supply of hydraulic fluid to the first priority actuator (47, 48) and for providing a load sense signal indicative of the load acting on the first priority actuator (47, 48); an auxiliary circuit (42) including at least a first auxiliary actuator (51) and at least a first auxiliary control valve (80) for controlling the supply of hydraulic fluid to the first auxiliary actuator (51); at least a first pump (46) for producing a flow of hydraulic fluid; and a priority valve (74) for distributing the flow from the pump (46) to the priority circuit (41) and auxiliary circuit (42) for operating the respective actuators thereof, with priority being given to the priority circuit (41) as a function of the load sense signal.
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公开(公告)号：US10815646B2
公开(公告)日：2020-10-27
申请号：US16436954
申请日：2019-06-11
Applicant: Parker-Hannifin Corporation
Inventor： Nicholas N. White , James Howland , Hao Zhang , Blake Carl
Abstract: A hydraulic system for recovering potential energy of a load implement of a mobile construction vehicle. The hydraulic system includes first and second actuators and control valving. The first and second actuators are configured to be coupled to the load implement for controlling raising and lowering of the load element. The control valving is operable between a first position at which, during a lowering of the load implement, the control valving directs hydraulic fluid from one of the first and second actuators to an accumulator to charge the accumulator, and a second position at which the control valving directs hydraulic fluid from the accumulator to one or more of the first and second actuators to power the one or more of the first and second actuators to raise the load element.
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公开(公告)号：US10358797B2
公开(公告)日：2019-07-23
申请号：US15747266
申请日：2016-08-15
Applicant: Parker-Hannifin Corporation
Inventor： Nicholas N. White , James Howland , Hao Zhang , Blake Carl
Abstract: A hydraulic system for recovering potential energy of a load implement of a mobile construction vehicle. The hydraulic system includes first and second actuators and control valving. The first and second actuators are configured to be coupled to the load implement for controlling raising and lowering of the load element. The control valving is operable between a first position at which, during a lowering of the load implement, the control valving directs hydraulic fluid from one of the first and second actuators to an accumulator to charge the accumulator, and a second position at which the control valving directs hydraulic fluid from the accumulator to one or more of the first and second actuators to power the one or more of the first and second actuators to raise the load element.
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公开(公告)号：US11225776B2
公开(公告)日：2022-01-18
申请号：US17160940
申请日：2021-01-28
Applicant: Parker-Hannifin Corporation
Inventor： Nicholas N. White , James Howland , Hao Zhang , Blake Carl
Abstract: A hydraulic system for recovering potential energy of a load implement of a mobile construction vehicle. The hydraulic system includes first and second actuators and control valving. The first and second actuators are configured to be coupled to the load implement for controlling raising and lowering of the load element. The control valving is operable between a first position at which, during a lowering of the load implement, the control valving directs hydraulic fluid from one of the first and second actuators to an accumulator to charge the accumulator, and a second position at which the control valving directs hydraulic fluid from the accumulator to one or more of the first and second actuators to power the one or more of the first and second actuators to raise the load element.
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