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公开(公告)号：US11946551B2
公开(公告)日：2024-04-02
申请号：US16884321
申请日：2020-05-27
Applicant: SEIKO EPSON CORPORATION
Inventor： Yukihiro Hanaoka , Toshiro Murayama , Daiki Tatsuta
CPC classification number: F16K17/06 , F15B1/265 , F15B7/06 , F16K17/085 , F16K17/087 , F16K17/10 , F16K17/105 , F16K31/0655 , G05D16/0636 , G05D16/0655 , G05D16/0661 , G05D16/0663 , G05D16/0669 , F15B21/06 , F15B2201/51
Abstract: A first valve mechanism is a valve mechanism provided in a flow path coupled to a liquid ejecting head that ejects a liquid, and including a valve that opens/closes the flow path, a first communication liquid chamber that communicates with the flow path, and a first pressure receiving body that converts a pressure difference between a pressure of the first communication liquid chamber and a reference pressure into an operating force of the valve, in which a threshold pressure of the first communication liquid chamber for determining opening/closing of the valve is variable.
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公开(公告)号：US11905981B2
公开(公告)日：2024-02-20
申请号：US18310080
申请日：2023-05-01
Applicant: GJR Meyer Service, Inc.
Inventor： Gary Michael Elsik , Noel Donavan McKim , Frank Michael Gonzalez
IPC: F15B21/04 , F15B21/048
CPC classification number: F15B21/048 , F15B2201/51 , F15B2211/205
Abstract: A system for automatically actuating a hydraulic accumulator—useful for oil collection systems—capable of operation while maintaining a zero or near zero draw of electrical energy.
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公开(公告)号：US11739740B2
公开(公告)日：2023-08-29
申请号：US17296417
申请日：2018-12-31
Applicant: Halliburton Energy Services, Inc.
Inventor： Stanley V. Stephenson , Joe A. Beisel
IPC: F04B11/00 , F15B1/033 , E21B43/12 , F04B49/06 , F04B47/04 , F04B9/10 , F04B51/00 , F04B47/02 , F04B47/00
CPC classification number: F04B11/0008 , E21B43/121 , E21B43/126 , E21B43/129 , F04B9/10 , F04B47/02 , F04B47/04 , F04B49/065 , F04B51/00 , F15B1/033 , F04B47/00 , F04B2205/01 , F15B2201/50 , F15B2201/51 , F15B2211/8609
Abstract: An active accumulator system which automatically adjusts or adapts the charge pressure or volume of an accumulator to maintain an optimal charge pressure or volume of the accumulator may provide optimal operation of a pump. An active accumulator system may comprise a flow line coupled to a pump, wherein a fluid flows through the flow line to the pump, an accumulator coupled to the flow line, a transducer coupled to the pump, wherein the transducer detects a parameter of the pump at an inlet of the pump, and a controller coupled to the transducer and the accumulator, wherein the controller receives the parameter, and wherein the controller regulates air flow to the accumulator such that the accumulator is adjusted to an optimal charge pressure based at least in part on the parameter.
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94.发明授权公开(公告)号：US11668149B2
公开(公告)日：2023-06-06
申请号：US17091842
申请日：2020-11-06
Applicant: Transocean Innovation Labs Ltd.
Inventor： Andrew Leach , Matthew Boike , Stephen Fairfax
IPC: F15B1/033 , E21B33/035 , F04B23/06 , F04B1/12 , F04B11/00 , F04B23/02 , F04B49/08 , F04B49/06 , F04B49/20 , F04B17/03 , E21B33/064 , F15B1/04 , F15B11/08
CPC classification number: E21B33/0355 , E21B33/064 , F04B1/12 , F04B11/0008 , F04B17/03 , F04B23/02 , F04B23/06 , F04B49/06 , F04B49/065 , F04B49/08 , F04B49/20 , F15B1/033 , F15B1/04 , F15B11/08 , F15B2201/411 , F15B2201/51 , F15B2211/205 , F15B2211/20576 , F15B2211/212 , F15B2211/30505 , F15B2211/632 , F15B2211/6306
Abstract: Some of the present systems include a hydraulic power storage system having an accumulator configured to supply pressurized hydraulic fluid to a hydraulically actuated device to actuate the hydraulically actuated device and a drain in fluid communication with the accumulator and including a valve that is actuatable to drain hydraulic fluid from the hydraulic power storage system such that an internal pressure of the accumulator is reduced and a flow restrictor configured to reduce a flow rate of hydraulic fluid through the valve, a hydraulic pump configured to pressurize the accumulator, a pressure sensor configured to capture data indicative of the internal pressure of the accumulator, and a processor configured to actuate the hydraulic pump to increase the internal pressure of the accumulator if the internal pressure of the accumulator, as indicated in data captured by the pressure sensor, falls below a threshold pressure.
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公开(公告)号：US20190029182A1
公开(公告)日：2019-01-31
申请号：US16037513
申请日：2018-07-17
Applicant: AGCO Corporation
Inventor： Mark M. Glade , Douglas R. Treffer , Brendon C. Nafziger
CPC classification number: A01D69/03 , A01D34/04 , A01D57/12 , A01D57/28 , A01D82/02 , F15B1/033 , F15B11/16 , F15B2201/51 , F15B2211/50 , F15B2211/50554 , F15B2211/6309 , F15B2211/6313 , F15B2211/6653 , F15B2211/7107 , F15B2211/7128 , F15B2211/78
Abstract: In one embodiment, a system, comprising: one or more pairs of oppositely rotatable, laterally extending rolls, wherein for each pair, at least one of the rolls is moveable relative to the other of the rolls; a hydraulic circuit, comprising: a tensioner circuit comprising: for each pair of rolls, one or more pairs of hydraulic cylinders arranged in parallel, each configured to resist movement of the at least one of the rolls at a respective end of the at least one of the rolls; an accumulator arranged in parallel to the hydraulic cylinders; and plural control valves; and a computing system configured to cause the one or more pairs of hydraulic cylinders to adjust the resistance to movement of the at least one of the rolls of the respective pair of rolls by sending signals to one or more of the plural control valves.
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Patent Agency Ranking
公开(公告)号：US20180180065A1
公开(公告)日：2018-06-28
申请号：US15389046
申请日：2016-12-22
Applicant: Eagle Industry Co., Ltd.
Inventor： Yoshiyuki Shimada
CPC classification number: F15B1/027 , E02F3/32 , E02F9/2217 , E02F9/2228 , E02F9/2285 , E02F9/2296 , F15B1/04 , F15B11/08 , F15B13/0401 , F15B13/0416 , F15B2201/51 , F15B2211/30525 , F15B2211/50563 , F15B2211/7051
Abstract: A fluid circuit includes a pressure fluid source, a switching valve, and a cylinder device having first and second chambers and partitioned by a piston. A first accumulator is configured to communicate with the second chamber when pressure fluid is supplied to the first chamber and to accumulate part of the pressure fluid from the second chamber. A pressure booster is connected in hydraulically parallel to the first accumulator, the pressure booster communicative with the second chamber when the pressure fluid is supplied to the first chamber to boost pressure of the pressure fluid by using part of the pressure fluid from the second chamber. A second accumulator accumulates the pressure fluid whose pressure is boosted by the pressure booster.
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公开(公告)号：US09366269B2
公开(公告)日：2016-06-14
申请号：US13427095
申请日：2012-03-22
Applicant: Dayao Chen , Pengfei Ma , Tonglin Shang , Bryan J. Hillman
Inventor： Dayao Chen , Pengfei Ma , Tonglin Shang , Bryan J. Hillman
CPC classification number: F15B1/033 , F15B2201/505 , F15B2201/51
Abstract: A system to diagnose a health of a hydraulic accumulator is provided. The hydraulic accumulator includes a first fluid chamber, a second fluid chamber, and a separator. The hydraulic accumulator has an associated pre-charge pressure. The system further includes a pressure sensor, a fluid source, a data processor, and a comparator. The pressure sensor and the fluid source are connected to the first fluid chamber. The data processor is configured to determine a first and second rate of pressure changes, and a transition pressure between the first and second rates. The approximate pre-charge pressure is determined based on the transition pressure. The comparator is configured to compare at least one of the determined pre charge pressure and the frictional forces with a pre-determined threshold range of pre-charge pressure and the frictional forces associated with the hydraulic accumulator to diagnose the health of the hydraulic accumulator.
Abstract translation: 提供了一种用于诊断液压蓄能器健康的系统。 液压蓄能器包括第一流体室，第二流体室和分离器。 液压蓄能器具有相关的预充压力。 该系统还包括压力传感器，流体源，数据处理器和比较器。 压力传感器和流体源连接到第一流体室。 数据处理器被配置为确定压力变化的第一和第二速率以及第一和第二速率之间的过渡压力。 基于过渡压力确定近似预充压力。 比较器被配置为将所确定的预充气压力和摩擦力中的至少一个与预充压力的预定阈值范围和与液压蓄能器相关联的摩擦力进行比较，以诊断液压蓄能器的健康状况。
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公开(公告)号：US09211872B2
公开(公告)日：2015-12-15
申请号：US13676900
申请日：2012-11-14
Applicant: GM Global Technology Operations LLC
Inventor： Leonid Basin , Edward W. Mellet , Carlos E. Marin
CPC classification number: B60T8/00 , F15B1/04 , F15B2201/21 , F15B2201/31 , F15B2201/4053 , F15B2201/51 , Y02E60/15
Abstract: A composite accumulator includes a base defining a first cavity and having a closed end, an open end, and a fluid port in communication with the first cavity for communicating a hydraulic fluid in or out of the first cavity, a cover disposed over the open end of the base, the cover defining a second cavity, an insert disposed within the second cavity, a piston disposed within the first cavity and the second cavity, the piston sealed to the insert and translatable along an axis, and a biasing member disposed axially between the piston and the insert, the biasing member configured to bias the piston towards the base. Both the base and the cover are a plastic and the insert is a metal.
Abstract translation: 复合蓄能器包括限定第一腔并具有闭合端，开口端和与第一空腔连通的流体端口的底座，用于将液压流体连通到第一空腔内或从第一空腔中流出的基座，设置在开口端 所述盖限定第二空腔，设置在所述第二空腔内的插入件，设置在所述第一空腔和所述第二空腔内的活塞，所述活塞密封到所述插入件并且可沿着轴线平移;以及偏压构件， 所述活塞和所述插入件，所述偏置构件构造成朝向所述基座偏置所述活塞。 基座和盖子均为塑料，插入件为金属。
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公开(公告)号：US20150217747A1
公开(公告)日：2015-08-06
申请号：US14527930
申请日：2014-10-30
Applicant: GOODRICH CORPORATION
Inventor： Eric D. Cahill , Paul R. Burte
CPC classification number: B60T17/221 , B60T13/14 , F15B1/24 , F15B19/005 , F15B2201/205 , F15B2201/31 , F15B2201/505 , F15B2201/51
Abstract: A method of detecting an accumulator failure is provided. The method may comprise measuring a first pressure on a gas-side of an accumulator, measuring a second pressure on a fluid-side of the accumulator, finding a difference between the first pressure and the second pressure, and comparing the difference to a predetermined threshold. A system for detecting an accumulator failure is also provided. The system may comprise a non-transitory memory communicating with a processor, the non-transitory memory having instructions stored thereon that, in response to execution by the processor, cause the processor to perform operations. The operations may include receiving a first pressure measurement, receiving a second pressure measurement, determining a difference between the first pressure measurement and the second pressure measurement, and detecting the accumulator failure based on the difference.
Abstract translation: 提供了一种检测蓄电池故障的方法。 该方法可以包括测量蓄能器的气体侧上的第一压力，测量蓄能器的流体侧上的第二压力，找到第一压力和第二压力之间的差，并将差值与预定阈值进行比较 。 还提供了一种用于检测蓄电池故障的系统。 系统可以包括与处理器通信的非暂时性存储器，其中存储有指令的非瞬态存储器响应于处理器的执行使得处理器执行操作。 操作可以包括接收第一压力测量值，接收第二压力测量值，确定第一压力测量值和第二压力测量值之间的差值，以及基于该差值来检测累加器故障。
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公开(公告)号：US08833143B2
公开(公告)日：2014-09-16
申请号：US13427072
申请日：2012-03-22
Applicant: Dayao Chen , Pengfei Ma , Tonglin Shang , Bryan J. Hillman
Inventor： Dayao Chen , Pengfei Ma , Tonglin Shang , Bryan J. Hillman
CPC classification number: F15B1/08 , F15B19/005 , F15B2201/205 , F15B2201/51 , G01M3/02 , G01N3/32 , Y10T137/0396 , Y10T137/86389
Abstract: A system including a hydraulic accumulator, a pressure sensor, a fluid source and a data processor to detect a pre-charge pressure is provided. The hydraulic accumulator includes first and second fluid chambers and a separator therebetween. The hydraulic accumulator has an associated pre-charge pressure. The pressure sensor is connected to the first fluid chamber. The data processor is connected to the pressure sensor. The data processor is configured to determine a first and second rate of pressure changes, and a transition pressure between the first and second rates. The approximate pre-charge pressure is determined based on the transition pressure.
Abstract translation: 提供一种包括液压蓄能器，压力传感器，流体源和数据处理器以检测预充气压力的系统。 液压蓄能器包括第一和第二流体室和它们之间的分离器。 液压蓄能器具有相关的预充压力。 压力传感器连接到第一流体室。 数据处理器连接到压力传感器。 数据处理器被配置为确定压力变化的第一和第二速率以及第一和第二速率之间的过渡压力。 基于过渡压力确定近似预充压力。
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