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公开(公告)号：US20180280162A1
公开(公告)日：2018-10-04
申请号：US16002968
申请日：2018-06-07
发明人： Richard GEIGER , David KRAIGE , Jeremy FRANK , Jacob LOVERICH , Ben Gilbert MACOMBER , Adam ARABIAN
摘要： A valve includes a case comprising a pin bore, a pin configured to move axially in the pin bore, wherein the pin seals the pin bore, a first channel in communication with the pin bore, a second channel in communication with the pin bore, wherein the second channel comprises a restrictor at a location offset from the first channel, a third channel in communication with the pin bore, wherein the third channel comprises a check valve, and the second channel and third channel are in communication with each other. The valve can be a miniature valve that is used in the control of hydraulic fluid in prosthesis, such as a prosthetic ankle joint.
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公开(公告)号：US10081522B2
公开(公告)日：2018-09-25
申请号：US14885309
申请日：2015-10-16
CPC分类号： B66F3/24 , B66F3/46 , B66F7/0666 , B66F7/08 , F15B11/16 , F15B2211/405 , F15B2211/41572 , F15B2211/7107 , F15B2211/782
摘要： An apparatus includes a housing, a piston, an input cavity, a first actuating shaft, a first output cavity, and a second output cavity. The housing comprise an input port, a first output port, a second output port, a first end, a second end, a first wide wall having a first internal surface, and a chamber at least partially defined by the first end and the first internal surface. The piston is able to actuate along the first internal surface of the first side wall. The input cavity is in fluid communication with the input port. The first output cavity is in fluid communication with the first output port. The second output cavity is in fluid communication with the second output port. The first actuating shaft is fixed to the piston and helps fluidly isolate the first output port from the second output port.
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公开(公告)号：US20180216317A1
公开(公告)日：2018-08-02
申请号：US15747266
申请日：2016-08-15
发明人： Nicholas N. WHITE , James HOWLAND , Hao ZHANG , Blake CARL
CPC分类号： E02F9/2217 , E02F9/123 , E02F9/2225 , E02F9/2267 , E02F9/2271 , E02F9/2292 , E02F9/2296 , F15B1/024 , F15B13/021 , F15B13/06 , F15B21/14 , F15B2211/20546 , F15B2211/20576
摘要： 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：US10024032B2
公开(公告)日：2018-07-17
申请号：US15183132
申请日：2016-06-15
摘要： The work machine includes a stabilization control calculation unit that calculates and outputs a gradual stoppage command for making a drive actuator stop gradually and an operation speed limitation command for limiting an upper limit operation speed according to the status of stability of the work machine, a stoppage characteristic modification unit that corrects pilot pressure so as to make the drive actuator stop gradually when a stoppage operation is performed on a control lever, and an operation speed limitation unit that corrects the pilot pressure so as to limit the operation speed of the drive actuator.
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公开(公告)号：US20170328382A1
公开(公告)日：2017-11-16
申请号：US15154237
申请日：2016-05-13
申请人： Robert Bosch GmbH
CPC分类号： F15B13/0402 , F15B11/0423 , F15B11/08 , F15B11/16 , F15B13/06 , F15B2211/20546 , F15B2211/253 , F15B2211/255 , F15B2211/30525 , F15B2211/40515 , F15B2211/415 , F15B2211/426 , F15B2211/665 , F15B2211/6654 , F15B2211/71
摘要： A hydraulic system is provided for controlling one or more piston-cylinders of an implement. An implement valve includes at least one spool operable to transition between a neutral position and an open position. A variable displacement pump is operable to move a fluid from a reservoir into a supply conduit and to the at least one spool. A flow control valve, distinct and separate from the at least one spool is located in-line with the supply conduit between the variable displacement pump and the at least one spool, and is operable to simultaneously provide the fluid to the implement valve and to a bypass pathway. The bypass pathway extends from the flow control valve to the reservoir without intervening valving. Each of the at least one spool is operable to permit increased fluid flow to a corresponding piston cylinder of the implement when in the open position. The variable displacement pump is operable to vary a flow rate to maintain a predetermined pump margin across the flow control valve.
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公开(公告)号：US09803339B2
公开(公告)日：2017-10-31
申请号：US14350611
申请日：2012-10-15
发明人： Takao Nanjo , Saburo Senoo , Naoki Goto
CPC分类号： E02F9/2217 , E02F9/2091 , E02F9/226 , E02F9/2285 , E02F9/2289 , E02F9/2292 , E02F9/2296 , F15B13/06 , F15B21/14 , F15B2211/20546 , F15B2211/253 , F15B2211/7053 , F15B2211/7058 , F15B2211/88
摘要： A hydraulic control device includes: a recovery oil passage; a regenerative motor that rotates an output shaft of an engine in response to a supply of the hydraulic fluid and is driven to rotate by rotation of the output shaft of the engine; a regenerative oil passage for guiding return oil from a boom cylinder to the regenerative motor without passing the return oil through the recovery oil passage; a coupling oil passage that couples the recovery oil passage and the regenerative oil passage to each other; and a regeneration-side check valve that is provided on the coupling oil passage, and allows the hydraulic fluid to flow from the recovery oil passage toward the regenerative motor, and moreover restricts the hydraulic fluid from flowing from the regenerative motor toward the recovery oil passage.
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公开(公告)号：US09790659B2
公开(公告)日：2017-10-17
申请号：US14775256
申请日：2014-02-27
发明人： Naoki Sugano , Takao Nanjo , Shota Oguma , Satoshi Maekawa , Koji Ueda
CPC分类号： E02F3/425 , E02F3/32 , E02F9/2239 , E02F9/2242 , E02F9/2282 , E02F9/2285 , E02F9/2292 , E02F9/2296 , F15B11/17 , F15B13/06 , F15B2211/20546 , F15B2211/20576 , F15B2211/30565 , F15B2211/30595 , F15B2211/45 , F15B2211/50536 , F15B2211/7135 , F15B2211/7142
摘要： Provided is a hydraulic shovel capable of moving a boom, an arm, and a bucket at respective adequate speeds even during complex operations thereof, without a significant pressure loss. This hydraulic shovel includes: a first pump (31) connected to a boom actuator (24) and a bucket actuator (28); a second pump (32) connected to an arm actuator (26) and the boom actuator (24); a third pump (33) connect to the arm actuator (26); a boom control valve (54) interposed between the first pump (31) and the boom actuator (24); an arm control valve (56) interposed between the second pump (32) and the arm actuator (26); a bucket control valve (58) interposed between the first pump (31) and the bucket actuator (28); a boom merging valve (55) for speed increase interposed between the second pump (32) and the boom actuator (24); and an arm merging valve (57) for speed increase interposed between the third pump (33) and the arm actuator (26).
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公开(公告)号：US09751606B2
公开(公告)日：2017-09-05
申请号：US14874323
申请日：2015-10-02
发明人： Joon Chae Lee , Jae Ho Jang , Chang Woo Lee , Nak Hyun Kim , Dong Eok Kang
IPC分类号： B63H21/38 , B63B25/12 , F04B19/22 , F04B23/04 , F15B11/17 , F15B13/06 , F02M21/06 , F02M21/02 , F02M31/18 , F02M37/04 , F02M37/06 , F04B23/02 , B63B21/14 , B63B25/16
CPC分类号： B63H21/38 , B63B21/14 , B63B25/12 , B63B25/16 , F02M21/0221 , F02M21/06 , F02M31/18 , F02M37/043 , F02M37/06 , F04B19/22 , F04B23/025 , F04B23/04 , F15B11/17 , F15B13/06 , F15B2211/20576 , Y02T10/126 , Y02T10/32
摘要： A system for supplying fuel to an engine of a ship. The system includes a high pressure pump pressurizing a liquefied natural gas (LNG) and supplying the pressurized LNG to the engine, a hydraulic motor driving the high pressure pump and a chamber carrying the high pressure pump and the hydraulic motor. The chamber is substantially free of electric sparks.
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29.发明授权公开(公告)号：US09719531B2
公开(公告)日：2017-08-01
申请号：US14412216
申请日：2013-06-05
IPC分类号： F15B11/16 , F15B13/06 , F15B21/00 , F16H61/421 , F16H61/431 , F16H61/4061 , F16H59/68
CPC分类号： F15B11/16 , F15B13/06 , F15B21/001 , F15B2211/253 , F15B2211/6333 , F15B2211/6652 , F16H61/4061 , F16H61/421 , F16H61/431 , F16H2059/6861
摘要： A device for varying the swept volumes of first and second hydraulic machines, whose swept volumes depends upon pivoting positions of adjustable axes thereof which can be connected to one another by first and second lines. The axes can be coupled to a piston-cylinder device which is adjustable by a control valve unit for pivoting the axes. Pressures in the area of the hydraulic machines can be limited by the control valve unit. The control valve unit can be coupled to a respective first or second line with the highest pressure. A device for determining an existing actual pressure is located upstream of the control valve unit, at least in the area of one of the first and the second lines that connects with the first and the second hydraulic machines. The control valve unit can be actuated based on the actual pressure value determined by the device.
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公开(公告)号：US20170190249A1
公开(公告)日：2017-07-06
申请号：US15325104
申请日：2015-06-24
申请人： KYB Corporation
发明人： Takanori INADA , Tetsuya IWANAJI
IPC分类号： B60K17/10 , F15B13/02 , F16H61/478 , F16H39/02 , F16H61/4017 , F16H61/4061 , F15B11/17 , F15B13/06
CPC分类号： B60K17/10 , F15B11/17 , F15B13/027 , F15B13/06 , F15B2211/20576 , F15B2211/25 , F16H39/02 , F16H61/4017 , F16H61/4061 , F16H61/478
摘要： A hydraulic drive system includes: a first hydraulic motor and a second hydraulic motor configured to be driven by working oils respectively discharged from a first hydraulic pump and a second hydraulic pump; a first pump control unit and a second pump control unit configured to control discharge volumes and discharge directions of the first hydraulic pump and the second hydraulic pump; a signal pressure generating unit configured to generate a signal pressure for adjusting command pressures to control the first pump control unit and the second pump control unit in accordance with the sum of discharge pressures of the first hydraulic pump and the second hydraulic pump; and a first pressure adjusting unit and a second pressure adjusting unit configured to adjust the command pressures in accordance with the signal pressure.
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