公开(公告)号：US12060896B2

公开(公告)日：2024-08-13

申请号：US18302886

申请日：2023-04-19

Applicant: FMC Technologies, Inc.

Inventor： James Cook ,  Corey Massey ,  Chad Vrla

IPC: F15B1/02 ,  E21B43/26 ,  F15B1/26 ,  F15B21/14 ,  F16N13/16

CPC classification number: F15B1/024 ,  E21B43/2607 ,  F15B1/26 ,  F15B21/14 ,  F16N13/16 ,  F15B2211/20515 ,  F15B2211/20523 ,  F15B2211/20546 ,  F15B2211/20576

Abstract: A high-pressure unit (HPU) skid includes one or more hydraulic pumps, a grease pump, a hydraulic reservoir, and two or more accumulators all mounted on a portable frame. The HPU skid also includes fluidic connections to connect one or more valves to an output of the grease pump and fluidic connections to connect one or more valves to an output of at least one of the two or more accumulators. The accumulators are configured to close at least one of the one or more valves using a charged pressure. The HPU skid further includes fluidic connections to connect one or more valves to at least one of the one or more hydraulic pumps. The hydraulic pumps are configured to withdraw hydraulic fluid from the hydraulic reservoir for charging the accumulators, operating the grease pump, charging the accumulators and operating the grease pump at a same time, or operating one or more valves.

公开(公告)号：US11661958B2

公开(公告)日：2023-05-30

申请号：US17385253

申请日：2021-07-26

Applicant: FMC Technologies, Inc.

Inventor： James Cook ,  Corey Massey ,  Chad Vrla

IPC: F15B1/02 ,  F15B21/14 ,  E21B43/26 ,  F15B1/26 ,  F16N13/16

CPC classification number: F15B1/024 ,  E21B43/2607 ,  F15B1/26 ,  F15B21/14 ,  F16N13/16 ,  F15B2211/20515 ,  F15B2211/20523 ,  F15B2211/20546 ,  F15B2211/20576

Abstract: A high-pressure unit (HPU) skid for greasing and actuating a frac tree valve includes one or more hydraulic pumps, a grease pump, a hydraulic reservoir, and two or more accumulators all of which are mounted on a portable frame. The HPU skid further includes fluidic connections to connect the frac tree valve to an output of the grease pump and fluidic connections to connect the frac tree valve to at least one of the two or more accumulators. The hydraulic pumps are configured to withdraw hydraulic fluid from the hydraulic reservoir for charging the accumulators, operating the grease pump, or charging the accumulators and operating the grease pump at a same time.

公开(公告)号：US20180274563A1

公开(公告)日：2018-09-27

申请号：US15466655

申请日：2017-03-22

Applicant: Bell Helicopter Textron Inc.

Inventor： Carl Theodore Elving ,  Robert Paul Reynolds ,  David Alan Hawthorne ,  Carlos Alexander Fenny

IPC: F15B11/17 ,  F15B1/26 ,  B64D29/02 ,  B64C29/00 ,  B64C13/36

CPC classification number: F15B11/17 ,  B64C13/36 ,  B64C13/40 ,  B64C13/42 ,  B64C27/28 ,  B64C29/0033 ,  B64D29/02 ,  B64D41/00 ,  F15B1/26 ,  F15B18/00 ,  F15B2211/20507 ,  F15B2211/20523 ,  F15B2211/20576 ,  F15B2211/7142 ,  Y02T50/44

Abstract: A hydraulic system for an aircraft having an engine and an auxiliary power unit includes a first hydraulic subsystem including a first hydraulic pump and a first set of hydraulic-powered components in fluid communication with the first hydraulic pump. The first hydraulic pump is powered by the engine to pump shared hydraulic fluid to the first set of hydraulic-powered components. The hydraulic system includes a second hydraulic subsystem including a second hydraulic pump and a second set of hydraulic-powered components in fluid communication with the second hydraulic pump. The second hydraulic pump is powered by the auxiliary power unit to pump the shared hydraulic fluid to the second set of hydraulic-powered components. A shared return line subsystem and reservoir is in fluid communication with the first and second hydraulic subsystems to return the shared hydraulic fluid to the first and second hydraulic pumps.

公开(公告)号：US20180238018A1

公开(公告)日：2018-08-23

申请号：US15555705

申请日：2016-03-11

Applicant: HITACHI CONSTRUCTION MACHINERY CO., LTD.

Inventor： Shinji ISHIHARA ,  Masafumi HITA ,  Shinya IMURA

IPC: E02F3/43 ,  E02F9/12 ,  E02F9/22 ,  E02F9/20 ,  F15B11/16

CPC classification number: E02F3/435 ,  B60Y2200/412 ,  E02F3/32 ,  E02F3/437 ,  E02F9/123 ,  E02F9/2037 ,  E02F9/2075 ,  E02F9/2095 ,  E02F9/22 ,  E02F9/2246 ,  E02F9/2292 ,  E02F9/2296 ,  F15B11/16 ,  F15B2211/20515 ,  F15B2211/20523 ,  F15B2211/20576 ,  F15B2211/6336 ,  F15B2211/6651 ,  F15B2211/6655 ,  F15B2211/7051 ,  F15B2211/7058 ,  F15B2211/7135 ,  F15B2211/7142 ,  F15B2211/782 ,  Y10S903/903

Abstract: A control system for a construction machine maintains operability of a swing combined operation even when the power supplied from an engine or storage device varies. The control system includes a target path computation section that receives an operation amount of the front implement operation device, an operation amount of the swing operation device, a speed of the front implement drive unit detected, and an angular speed of the swing structure drive unit, and that computes a target path of a claw tip position of the front implement drive unit; and an actuator power computation section that regulates power supplied to the front implement drive unit or the swing structure drive unit in such a manner that a claw tip of the front implement drive unit follows the target path the front implement operation device and the swing operation device are operated simultaneously.

公开(公告)号：US20180216637A1

公开(公告)日：2018-08-02

申请号：US15501269

申请日：2016-07-29

Applicant: Komatsu Ltd.

Inventor： Yuta Kamoshita ,  Tadashi Kawaguchi ,  Teruo Akiyama ,  Kenji Oshima ,  Koji Saito ,  Noboru Iida

IPC: F15B13/06 ,  F15B11/05 ,  F15B11/16 ,  F15B11/17 ,  E02F9/22 ,  E02F3/34

CPC classification number: F15B13/06 ,  E02F3/34 ,  E02F9/2242 ,  E02F9/2267 ,  E02F9/2296 ,  F15B11/055 ,  F15B11/162 ,  F15B11/17 ,  F15B2211/20515 ,  F15B2211/20523 ,  F15B2211/20546 ,  F15B2211/20576 ,  F15B2211/275 ,  F15B2211/3054 ,  F15B2211/30595 ,  F15B2211/4053 ,  F15B2211/41518 ,  F15B2211/50554 ,  F15B2211/6309 ,  F15B2211/6313 ,  F15B2211/6316 ,  F15B2211/6346 ,  F15B2211/6651 ,  F15B2211/6654 ,  F15B2211/6655 ,  F15B2211/7142 ,  F15B2211/781

Abstract: A control system for controlling a work machine including a working unit including elements and actuators that drives the elements includes: a first hydraulic pump and a second hydraulic pump each of which supplies operating oil to at least one of the actuators; and a control device that calculates a distribution flow rate of operating oil distributed to each of the actuators based on an operating state of the working unit and switches, based on the calculated distribution flow rate, between a first state in which the operating oil supplied from both the first hydraulic pump and the second hydraulic pump is supplied to the actuators and a second state in which the actuator to which the operating oil is supplied from the first hydraulic pump is different from the actuator to which the operating oil is supplied from the second hydraulic pump.

公开(公告)号：US10017917B2

公开(公告)日：2018-07-10

申请号：US14916368

申请日：2015-10-28

Applicant: Komatsu Ltd.

Inventor： Tadashi Kawaguchi ,  Teruo Akiyama ,  Koji Saito ,  Takayuki Watanabe ,  Noboru Iida

IPC: F16D31/02 ,  E02F9/22 ,  F15B11/16 ,  E02F3/32 ,  E02F9/12 ,  F15B11/08 ,  F15B13/04 ,  F15B21/08 ,  E02F3/43 ,  E02F9/20 ,  F15B11/17

CPC classification number: E02F9/22 ,  E02F3/32 ,  E02F3/435 ,  E02F9/123 ,  E02F9/2095 ,  E02F9/2217 ,  E02F9/2228 ,  E02F9/2242 ,  E02F9/2292 ,  E02F9/2296 ,  F15B11/08 ,  F15B11/163 ,  F15B11/17 ,  F15B13/0401 ,  F15B21/08 ,  F15B2211/20523 ,  F15B2211/20576 ,  F15B2211/30595 ,  F15B2211/35 ,  F15B2211/7135 ,  F15B2211/7142

Abstract: A drive device of a construction machine includes a pump passage connected to a hydraulic pump, first and second supply passages connected to the pump passage, first and second passages connected to the first supply passage, third and fourth passages connected to the second supply passage, a first valve connected to the first and third passages, a second valve connected to the second and fourth passages, a first bucket passage connecting the first passage to a cap-side space of the bucket cylinder through the first valve, a second bucket passage connecting the third passage to a rod-side space of the bucket cylinder through the first valve, a first arm passage connecting the second passage to a rod-side space of an arm cylinder through the second valve, and a second arm passage connecting the fourth passage to a cap-side space of the arm cylinder through the second valve.

公开(公告)号：US09920780B2

公开(公告)日：2018-03-20

申请号：US14747233

申请日：2015-06-23

Applicant: KOBELCO CONSTRUCTION MACHINERY CO., LTD.

Inventor： Koji Ueda ,  Takaaki Izuka

IPC: F15B21/08 ,  E02F9/12 ,  E02F9/22 ,  F15B11/04 ,  F15B11/08 ,  F15B13/02 ,  F15B13/04 ,  F15B13/044

CPC classification number: F15B21/082 ,  E02F9/123 ,  E02F9/2228 ,  E02F9/2235 ,  E02F9/226 ,  E02F9/2282 ,  E02F9/2285 ,  E02F9/2296 ,  F15B11/04 ,  F15B11/08 ,  F15B13/024 ,  F15B13/0401 ,  F15B13/044 ,  F15B2211/20523 ,  F15B2211/20546 ,  F15B2211/255 ,  F15B2211/3116 ,  F15B2211/405 ,  F15B2211/50518 ,  F15B2211/6309 ,  F15B2211/6316 ,  F15B2211/632 ,  F15B2211/633 ,  F15B2211/6336 ,  F15B2211/6346 ,  F15B2211/6652 ,  F15B2211/6654 ,  F15B2211/7058

Abstract: Provided is a slewing drive apparatus for a construction machine capable of satisfactory pump-flow-rate control regardless of change in engine speed, including a variable displacement hydraulic pump, a slewing motor, a slewing operation device, a control valve, a relief valve, and a pump-flow-rate control device that performs a relief cut control and includes: a section for detecting an engine revolution number Ne and a slewing speed of a slewing body; a section for determining a target pump flow rate Qo that is a sum of a slewing-speed correspondence flow rate Q1 and a minimum required relief flow rate Qmin; a section for determining a target pump-tilt-angle qtg obtained by dividing the target pump flow rate Qo by the detected engine revolution number Ne; and a section for adjusting an actual pump-tilt-angle of the hydraulic pump so as to bring the actual pump-tilt-angle to the target pump-tilt-angle qtg.

公开(公告)号：US20180016770A1

公开(公告)日：2018-01-18

申请号：US15715724

申请日：2017-09-26

Applicant: SUMITOMO HEAVY INDUSTRIES, LTD.

Inventor： Keiji HONDA ,  Hiroshi ISHIYAMA

IPC: E02F9/22 ,  F15B21/14 ,  E02F3/43

CPC classification number: E02F9/22 ,  E02F3/43 ,  E02F9/123 ,  E02F9/128 ,  E02F9/2217 ,  E02F9/2228 ,  E02F9/2296 ,  F15B11/0406 ,  F15B21/14 ,  F15B2211/20523 ,  F15B2211/20546 ,  F15B2211/20576 ,  F15B2211/30535 ,  F15B2211/30565 ,  F15B2211/3058 ,  F15B2211/3116 ,  F15B2211/45 ,  F15B2211/6306 ,  F15B2211/6309 ,  F15B2211/6313 ,  F15B2211/633 ,  F15B2211/6346 ,  F15B2211/6651 ,  F15B2211/7058 ,  F15B2211/7128 ,  F15B2211/7135 ,  F15B2211/7142 ,  F15B2211/755 ,  F15B2211/853 ,  F15B2211/88

Abstract: A shovel includes a swing hydraulic motor configured to swing a rotating structure, a swing drive hydraulic circuit configured to drive the swing hydraulic motor, an assist hydraulic motor connected to an engine and configured to be supplied with hydraulic oil discharged from the swing drive hydraulic circuit, and a controller configured to control the driving of the shovel. The controller is configured to detect the load condition of the engine, and control the supply of the hydraulic oil to the assist hydraulic motor at the time of deceleration of the swing hydraulic motor, based on the detected load condition.

公开(公告)号：US09850918B2

公开(公告)日：2017-12-26

申请号：US14892510

申请日：2013-06-03

Applicant: VOLVO CONSTRUCTION EQUIPMENT AB

Inventor： Robert Morelius ,  Kim Heybroek

IPC: F15B11/10 ,  F16H61/448 ,  E02F9/12 ,  E02F9/22 ,  B60K6/12 ,  F16H61/4035 ,  F16H61/4096 ,  F15B11/00 ,  E02F3/42 ,  E02F3/43

CPC classification number: F15B11/10 ,  B60K6/12 ,  E02F3/422 ,  E02F3/431 ,  E02F9/123 ,  E02F9/2217 ,  E02F9/2253 ,  E02F9/2289 ,  F15B11/003 ,  F15B11/006 ,  F15B2211/20523 ,  F15B2211/2053 ,  F15B2211/20569 ,  F15B2211/212 ,  F15B2211/30565 ,  F15B2211/30575 ,  F15B2211/7058 ,  F15B2211/7107 ,  F15B2211/76 ,  F15B2211/763 ,  F16H61/4035 ,  F16H61/4096 ,  F16H61/448 ,  Y02T10/6208

Abstract: A hydraulic system includes a first and a second rotating hydraulic machine, the first and second hydraulic machine being arranged to provide a torque via a common output shaft; a first valve arrangement for providing a differential hydraulic pressure level over the first hydraulic machine by using two sources of hydraulic fluid having different hydraulic pressure levels, a second valve arrangement for providing a differential hydraulic pressure level over the second hydraulic machine by using two sources of hydraulic fluid having different hydraulic pressure levels; and a control unit configured to control the first valve arrangement and the second valve arrangement such that different discrete levels of torque are provided via the output shaft of the hydraulic system. A hydraulic system for providing different discrete levels of torque using one hydraulic machine and a plurality of differential pressure levels, and a method for controlling a hydraulic system, are also provided.

公开(公告)号：US09849926B2

公开(公告)日：2017-12-26

申请号：US14339267

申请日：2014-07-23

Applicant: Google Inc.

Inventor： John Aaron Saunders ,  Michael Murphy ,  Steven D. Potter

IPC: B62D57/032 ,  B25J18/00 ,  F15B21/00 ,  G05D1/02 ,  G05D16/20 ,  F15B13/04

CPC classification number: B62D57/032 ,  B25J9/1612 ,  B25J18/00 ,  F15B13/0406 ,  F15B21/001 ,  F15B2211/20523 ,  F15B2211/20538 ,  F15B2211/20576 ,  F15B2211/25 ,  F15B2211/265 ,  F15B2211/5151 ,  F15B2211/5152 ,  F15B2211/625 ,  F15B2211/6309 ,  F15B2211/6336 ,  F15B2211/6651 ,  F15B2211/6653 ,  G05D1/021 ,  G05D16/2006 ,  G05D16/2066 ,  G05D2201/0217

Abstract: A robotic device may traverse a path in a direction of locomotion. Sensor data indicative of one or more physical features of the environment in the direction of locomotion may be received. The implementation may further involve determining that traversing the path involves traversing the one or more physical features of the environment. Based on the sensor data indicative of the one or more physical features of the environment in the direction of locomotion, a hydraulic pressure to supply to the one or more hydraulic actuators to traverse the one or more physical features of the environment may be predicted. Before traversing the one or more physical features of the environment, the hydraulic drive system may adjust pressure of supplied hydraulic fluid from the first pressure to the predicted hydraulic pressure.