专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2016169939A1 HYDRAULIC CIRCUIT AND WORKING MACHINE 审中-公开
标题翻译：液压回路和工作机
公开(公告)号：WO2016169939A1
公开(公告)日：2016-10-27
申请号：PCT/EP2016/058680
申请日：2016-04-20
申请人： CATERPILLAR SARL
发明人： KISHIDA, Kouji , TOYODA, Mitsuhiro , HATA, Yoshihiko , KANENAWA, Yuya , ORIMOTO, Shuhei , MATOBA, Nobuaki
IPC分类号： E02F9/22
CPC分类号： E02F9/2217 , E02F9/2296
摘要： Provided are a hydraulic circuit and a work machine in which hydraulic fluid pushed out from a head side of a hydraulic cylinder can be effectively utilized to be accumulated in an accumulator and thrust necessary to contract the hydraulic cylinder is easily obtained with a simple structure when the contracting load is large. Pressure oil from a head side of a boom cylinder (7cl) is accumulated in a first accumulator (46) with a pressure acclimating circuit (A) through a control valve (61) which changes a communication amount between the head side of the boom cylinder (7cl) and the first accumulator (46) in accordance with the degree of operation of a lever. When the axial force of the boom cylinders (7cl), (7c2) is equal to or more than a predetermined value, the hydraulic oil is returned to a tank (21) by communicating between rod sides and between head sides of the boom cylinders (7cl), (7c2) by a main control valve (62), and the hydraulic oil is fed to the rod side of the boom cylinders (7cl), (7c2) by a boom control valve (26), the hydraulic oil being fed under pressure from a main pump (12) in the state where the control valve (61) and the tank (21) are communicated by a bleed-off valve (63).
摘要翻译：提供了一种液压回路和作业机械，其中可以有效地利用从液压缸的头侧推出的液压流体积聚在蓄能器中，并且当具有简单的结构容易获得用于收缩液压缸所需的推力时承包量大。来自动臂缸（7c1）的头侧的压力油通过控制阀（61）累积在具有压力适应回路（A）的第一蓄能器（46）中，控制阀（61）改变动臂缸的头侧（7c1）和第一蓄能器（46），根据杠杆的操作程度。当动臂缸（7c1），（7c2）的轴向力等于或大于预定值时，液压油通过杆侧之间和动臂缸的头部侧之间的连通而返回到罐（21） 7c1），（7c2），通过主控制阀（62）将液压油供给到动臂缸（7c1），（7c2）的杆侧，液压油被供给在通过排泄阀（63）连通控制阀（61）和油箱（21）的状态下，来自主泵（12）的压力。

2. 发明申请

WO2016169936A1 HYDRAULIC CIRCUIT AND WORKING MACHINE 审中-公开
标题翻译：液压回路和工作机
公开(公告)号：WO2016169936A1
公开(公告)日：2016-10-27
申请号：PCT/EP2016/058677
申请日：2016-04-20
申请人： CATERPILLAR SARL
发明人： KISHIDA, Kouji , TOYODA, Mitsuhiro , HATA, Yoshihiko , KANENAWA, Yuya , ORIMOTO, Shuhei , MATOBA, Nobuaki
IPC分类号： E02F9/22
CPC分类号： E02F9/2217 , E02F9/2292 , E02F9/2296 , F15B15/18
摘要： Provided are a hydraulic circuit and a work machine being capable of improving an initial motion speed of a hydraulic cylinder during a contraction state of the hydraulic cylinder and securing a necessary pump flow rate while hydraulic fluid is accumulated in an accumulator with simple structures. Hydraulic oil from a head side of a boom cylinder (7c2) is regenerated in a boom cylinder (7c1) and the boom cylinder (7c2) through a main control valve (62) of a regeneration circuit (B) when pressure oil from the head side of the boom cylinder (7c1) is accumulated to a first accumulator (46) by a pressure accumulating circuit (A) through a control valve (61). The hydraulic oil fed under pressure from a main pump (12) is fed to a rod side of the boom cylinder (7c1) by a boom control valve (26) in a state where a bleed-off valve (63) of a bleed-off circuit (C) communicates the control valve (61) and a tank (21), the bleed-off valve (63) returning the hydraulic oil from the control valve (61) at the time of the initial motion of the control valve (61).
摘要翻译：提供一种液压回路和作业机械，其能够在液压缸的收缩状态下提高液压缸的初始运动速度，并且在液压油蓄积在具有简单结构的蓄能器中时确保所需的泵流量。当动臂油缸（7c2）的头部侧的液压油通过来自头部的压力油通过再生回路（B）的主控制阀（62）在动臂缸（7c1）和动臂缸（7c2）中再生动臂油缸（7c1）的一侧通过压力积蓄回路（A）通过控制阀（61）蓄积到第一蓄能器（46）。在主泵（12）的压力下供给的液压油在排气阀（63）的泄放阀（63）的状态下由动臂控制阀（26）供给到动臂缸（7c1）的杆侧，关闭回路（C）与控制阀（61）和罐（21）连通，排出阀（63）在控制阀的初始运动时从控制阀（61）返回液压油（ 61）。

3. 发明申请

WO2018024790A1 PUMP CONTROL DEVICE AND PUMP CONTROL METHOD 审中-公开
标题翻译：泵控制装置和泵控制方法
公开(公告)号：WO2018024790A1
公开(公告)日：2018-02-08
申请号：PCT/EP2017/069571
申请日：2017-08-02
申请人： CATERPILLAR SARL
发明人： HATA, Yoshihiko , KISHIDA, Kouji , MATOBA, Nobuaki , ASANO, Hiroshi
IPC分类号： F15B11/16 , E02F9/22 , F15B21/08 , F04B49/06
CPC分类号： F15B11/165 , E02F9/2235 , E02F9/2292 , E02F9/2296 , F04B49/06 , F04B49/065 , F04B49/08 , F15B21/082 , F15B21/087 , F15B2211/20553 , F15B2211/20576 , F15B2211/6309 , F15B2211/6346 , F15B2211/6652 , F15B2211/6655 , F15B2211/6658 , F15B2211/88
摘要： To provide a pump control device and a pump control method enables to change the setting of a pump flow. The controller (34) is to obtain the sum total value and the maximum value of the demanded flows from the respective hydraulic actuators. The controller (34) is, with respect to the maximum value, to set the pump flow command value based on a value obtained by adding a value obtained by multiplying a predetermined gain of the difference between the sum total value and the maximum value. By changing the value of the gain, setting of the pump flow is to become easily changeable.
摘要翻译：为了提供泵控制装置和泵控制方法，能够改变泵流量的设置。控制器（34）取得来自各液压执行机构的要求流量的合计值和最大值。控制器（34）相对于最大值，基于通过将总和值与最大值之间的差的预定增益相乘所获得的值相加而得到的值来设定泵流量命令值。通过改变增益的值，泵流量的设置变得易于改变。

4. 发明申请

WO2016083340A1 FLUID PRESSURE CIRCUIT AND WORKING MACHINE 审中-公开
标题翻译：流体压力电路和工作机
公开(公告)号：WO2016083340A1
公开(公告)日：2016-06-02
申请号：PCT/EP2015/077443
申请日：2015-11-24
申请人： CATERPILLAR SARL
发明人： KISHIDA, Kouji , TOYODA, Mitsuhiro , HATA, Yoshihiko , KANENAWA, Yuya , ORIMOTO, Shuhei , MATOBA, Nobuaki
IPC分类号： F15B1/02 , E02F9/22 , F15B21/14
CPC分类号： F15B21/14 , E02F9/123 , E02F9/2217 , E02F9/2292 , E02F9/2296 , F15B1/024 , F15B11/024 , F15B11/17 , F15B2211/20546 , F15B2211/20576 , F15B2211/212 , F15B2211/3058 , F15B2211/50554 , F15B2211/6306 , F15B2211/6309 , F15B2211/6313 , F15B2211/7053 , F15B2211/7058 , F15B2211/7128 , F15B2211/7135 , F15B2211/761 , F15B2211/88
摘要： Provided are a fluid pressure circuit and a work machine with simple structures being capable of securing a necessary pump flow rate even when working fluid is accumulated in an accumulator. A fluid pressure circuit includes: two boom cylinders 7c1, 7c2 which simultaneously start the same action by working fluid supplied under pressure from main pumps 12, 13; an accumulating circuit A which accumulates the working fluid in an accumulator 46, the working fluid being pushed out from a head side of the boom cylinder 7c1 through a control valve 61 which varies an amount of communication between the head side of the boom cylinder 7c1 and the accumulator 46 in accordance with an operation amount of a lever; and a regenerating circuit B which regenerates the working fluid pushed out from a head side of the boom cylinder 7c2 to the boom cylinders 7c1, 7c2 through a main control valve 62, the control valve 62 disconnecting the communication between the head sides of the boom cylinders 7c1, 7c2 and communicating the head side of the boom cylinder 7c2 and rod sides of the boom cylinders 7c1, 7c2 when the working fluid is accumulated in the accumulator 46.
摘要翻译：提供了一种具有简单结构的流体压力回路和作业机械，即使当工作流体积聚在蓄能器中时也能确保所需的泵流量。流体压力回路包括：两个动臂缸7c1,7c2，其通过在主泵12,13的压力下供给的工作流体同时起动相同的动作; 累积电路A，其将工作流体积蓄在蓄能器46中，工作流体通过控制阀61从动臂缸7c1的头侧被推出，该控制阀61改变动臂缸7c1的头侧与臂架缸7c1的头侧之间的连通量蓄能器46根据杠杆的操作量; 以及再生回路B，其通过主控制阀62将从动臂缸7c2的头侧被推出的工作流体再生到动臂缸7c1,7c2，控制阀62断开动臂缸的头侧 7c1,7c2，并且当工作流体积聚在蓄压器46中时，连动臂缸7c2的头侧和动臂缸7c1,7c2的杆侧。

5. 发明申请

WO2017046401A1 HYDRAULIC PUMP CONTROL SYSTEM OF HYDRAULIC WORKING MACHINE 审中-公开
标题翻译：液压工程机械液压泵控制系统
公开(公告)号：WO2017046401A1
公开(公告)日：2017-03-23
申请号：PCT/EP2016/072076
申请日：2016-09-16
申请人： CATERPILLAR SARL
发明人： KISHIDA, Kouji , HATA, Yoshihiko , MATOBA, Nobuaki
IPC分类号： E02F9/22 , F15B11/042 , F15B11/16
CPC分类号： F15B11/165 , E02F9/2228 , E02F9/2232 , E02F9/2282 , E02F9/2292 , E02F9/2296 , F15B2211/20553 , F15B2211/20576 , F15B2211/3116 , F15B2211/40507 , F15B2211/40515 , F15B2211/41554 , F15B2211/426 , F15B2211/45 , F15B2211/50518 , F15B2211/5156 , F15B2211/7135 , F15B2211/7142
摘要： A hydraulic working machine is provided that uses a variable displacement pump(14) and open center type flow rate control valve (26) for a controlling a hydraulic actuator (11), and has a negative control throttle (32R) disposed in a center bypass oil passage (26a) to generate a negative control pressure. A hydraulic pump control system performs virtual bleed-off control for reducing the bleed-off flow rate of the center bypass oil passage (26a), and can operate the hydraulic actuator (11) with the same performance as an open center control. The control system includes a bypass cut valve (31R) disposed upstream from the negative control throttle (32R) to reduce flow through the center bypass oil passages (26a), and a negative control pressure output valve (38R) that outputs a virtual negative control pressure. The control system is configured to reduce the bleed-off flow rate by operating the bypass cut valve (31R) when virtual bleed-off control is performed, and to reduce the pump flow rate by the bleed-off reduction flow rate.
摘要翻译：提供了一种液压工作机，其使用可变排量泵（14）和用于控制液压致动器（11）的开式中心型流量控制阀（26），并且具有设置在中心旁路中的负控制节流阀（32R）油通道（26a）以产生负控制压力。液压泵控制系统执行虚拟排放控制，以减小中心旁通油通道（26a）的泄放流量，并且可以以与打开中心控制相同的性能来操作液压致动器（11）。控制系统包括设置在负控制节流阀（32R）上游的旁通截止阀（31R），以减少通过中心旁路油路（26a）的流量;以及负控制压力输出阀（38R），其输出虚拟负控制压力。控制系统被配置为当进行虚拟排出控制时通过操作旁路切断阀（31R）来减小泄放流量，并且通过排放减少流量来减小泵流量。

6. 发明申请

WO2016169950A1 HYDRAULIC CIRCUIT AND WORKING MACHINE 审中-公开
标题翻译：液压回路和工作机
公开(公告)号：WO2016169950A1
公开(公告)日：2016-10-27
申请号：PCT/EP2016/058696
申请日：2016-04-20
申请人： CATERPILLAR SARL
发明人： KISHIDA, Kouji , TOYODA, Mitsuhiro , HATA, Yoshihiko , KANENAWA, Yuya , ORIMOTO, Shuhei , MATOBA, Nobuaki
IPC分类号： E02F9/22
CPC分类号： E02F9/2292 , E02F9/2203 , E02F9/2225 , E02F9/2228 , E02F9/2296
摘要： Provided are a hydraulic circuit and a work machine being capable of suppressing energy loss and pressure loss during an operation of eliminating excavation load for an excavation. A hydraulic circuit includes an on-board controller which is configured to detect an operation state of a work machine, and to, when detecting the work machine is in an excavation state, control each operation of a solenoid proportional boom control valves (26), (28) and a bleed-off valve (66) in accordance with an operation amount of a lever which operates the work machine at least upward, whereby hydraulic oil fed from pumps (12), (13) to boom cylinders (7c1), (7c2) is reduced, return oil from a rod side of the boom cylinders (7cl), (7c2) is bypassed to a tank (21), and a pump flow rate which is discharged from the pumps (12), (13) is reduced. The hydraulic circuit also includes a making-up circuit (M) which is configured to bypass return oil from a rod side to the pumps (12), (13) by the bleed-off valve (66), and to replenish hydraulic oil to the head side of the boom cylinders (7c1), (7c2) from the tank (21).
摘要翻译：提供一种在消除挖掘挖掘负荷的操作期间能够抑制能量损失和压力损失的液压回路和作业机械。液压回路包括车载控制器，其被构造成检测作业机械的运转状态，并且在检测到作业机械处于挖掘状态时，控制电磁比例悬臂控制阀（26），（28）和排放阀（66），其根据操作作业机械的操作量至少向上，由此从泵（12），（13）供给到动臂缸（7c1）的液压油，（7c2）被降低，来自动臂缸（7c1），（7c2）的杆侧的返回油旁通到油箱（21），从泵（12），（13）排出的泵流量降低了。该液压回路还包括一个补给回路（M），该补给回路（M）被构造成通过排放阀（66）将从油面侧返回到泵（12），（13）的回油，并补充液压油来自罐（21）的动臂缸（7c1），（7c2）的头侧。

7. 发明申请

WO2015158914A1 CONTROL DEVICE AND WORKING MACHINE 审中-公开
标题翻译：控制装置和工作机
公开(公告)号：WO2015158914A1
公开(公告)日：2015-10-22
申请号：PCT/EP2015/058433
申请日：2015-04-17
申请人： CATERPILLAR SARL
发明人： KAJITA, Shigeo , KISHIDA, Kouji , HATA, Yoshihiko , MATOBA, Nobuaki
IPC分类号： E02F9/20 , E02F9/22
CPC分类号： E02F9/2242 , E02F3/96 , E02F9/2066 , E02F9/2075 , E02F9/2217 , E02F9/2285 , E02F9/2292 , E02F9/2296 , F15B1/027 , F15B11/10 , F15B13/0416 , F15B2201/51 , F15B2211/605 , F15B2211/6306 , F15B2211/633 , F15B2211/6333 , F15B2211/6346 , F15B2211/6651 , F15B2211/6656 , F15B2211/6658 , F15B2211/7058 , F15B2211/763 , F15B2211/765
摘要： Provided is a small-sized and inexpensive control device which can effectively suppress a load fluctuation of an engine (6) according to conditions of a main pump circuit. An assist torque calculation task (53) of a machine controller (30) includes a target engine torque calculation task (101) separating smooth torque components (Tsm) from main pump load torque (D1) and setting a minimum value of either smooth torque component (Tsm) or engine setting torque (Tes) as target engine torque (Tet), and a subtractor (59) calculating target assist torque (Tat) based on a difference between the main pump load torque (D1) and the target engine torque (Tet). The assist torque calculation task (53) includes a function of controlling a capacity of an assist pump (10) based on the target assist torque (Tat) and controlling switching between an assist mode and a charge mode.
摘要翻译：提供一种小型廉价的控制装置，能够根据主泵电路的状况有效地抑制发动机（6）的负载变动。机器控制器（30）的辅助转矩计算任务（53）包括将平滑转矩分量（Tsm）与主泵负载转矩（D1）分离的目标发动机转矩计算任务（101），并设定平滑转矩分量（Tsm）或发动机设定扭矩（Tes）作为目标发动机转矩（Tet），以及减法器（59），基于主泵负载转矩（D1）和目标发动机转矩（D）之间的差计算目标辅助转矩（Tat） TET）。辅助扭矩计算任务（53）包括基于目标辅助转矩（Tat）来控制辅助泵（10）的容量并控制辅助模式和充电模式之间的切换的功能。

8. 发明申请

WO2015067617A1 HYDRAULIC PRESSURE CIRCUIT AND WORKING MACHINE 审中-公开
标题翻译：液压压力电机及工作机
公开(公告)号：WO2015067617A1
公开(公告)日：2015-05-14
申请号：PCT/EP2014/073737
申请日：2014-11-04
申请人： CATERPILLAR SARL
发明人： KAJITA, Shigeo , KISHIDA, Kouji , TADA, Shogo , MATOBA, Nobuaki
IPC分类号： E02F9/22 , F15B1/02 , F15B21/14
CPC分类号： F15B11/08 , E02F9/123 , E02F9/2217 , E02F9/2292 , E02F9/2296 , F15B1/022 , F15B1/04 , F15B13/025 , F15B13/0426 , F15B21/14 , F15B2201/00 , F15B2211/20523 , F15B2211/20546 , F15B2211/20569 , F15B2211/20576 , F15B2211/212 , F15B2211/3058 , F15B2211/50554 , F15B2211/6306 , F15B2211/6309 , F15B2211/6313 , F15B2211/6333 , F15B2211/6355 , F15B2211/67 , F15B2211/7053 , F15B2211/7058 , F15B2211/7128 , F15B2211/7135 , F15B2211/761 , F15B2211/88
摘要： Provided is a hydraulic circuit capable of solving a problem without having to solve by switching circuits that leads to operability deterioration, the problem being that a speed of a hydraulic cylinder lowers when an accumulator pressure rises, and realizing efficient reuse of energy. The hydraulic circuit has: main pumps (12, 13) driven by an engine (11); a boom cylinder (7cl) including a piston (7cp) operating by hydraulic oil supplied from the main pumps (12, 13), one chamber (7ch) and the other chamber (7cr) respectively partitioned and formed by the piston (7cp); an accumulator (61) accumulating pressure of the hydraulic oil extruded from one chamber (7ch) of the boom cylinder (7cl); and an assist pump motor (15) suctioning the hydraulic oil from the accumulator (61) when pressure continues to be accumulated in the accumulator (61) and the accumulator pressure rises.
摘要翻译：本发明提供一种能够解决问题的液压回路，而不需要解决导致操作性劣化的切换电路，这是因为当蓄压器的压力上升时液压缸的速度降低，能够有效地再利用。液压回路具有：由发动机（11）驱动的主泵（12,13）; 包括由主泵（12,13）供应的液压油，由活塞（7cp）分隔和形成的一个室（7ch）和另一个室（7cr））操作的活塞（7cp）的动臂缸（7c1）。蓄积器（61），累积从动臂缸（7c1）的一个室（7ch）挤出的液压油的压力; 以及当压力继续积聚在蓄能器（61）中并且蓄能器压力升高时，辅助泵马达（15）从蓄能器（61）吸入液压油。

9. 发明公开

EP4061667A1 CONSTRUCTION MACHINE 审中-公开
公开(公告)号：EP4061667A1
公开(公告)日：2022-09-28
申请号：EP20808299.0
申请日：2020-11-12
申请人： Caterpillar SARL
发明人： KISHIDA, Kouji , MATSUMURA, Kazumasa , NISHIYAMA, Shinichi
IPC分类号： B60L50/60 , B60R16/04 , B60L53/80 , B60L50/64

10. 发明公开

EP4189178A1 MACHINE CONFIGURATION AND CONTROL SYSTEM ENABLING INTERCHANGEABLE POWER SOURCES 审中-实审
公开(公告)号：EP4189178A1
公开(公告)日：2023-06-07
申请号：EP21748788.3
申请日：2021-07-23
申请人： Caterpillar SARL
发明人： GORMAN, Corey Lee , FUNG, Andy , KISHIDA, Kouji , KIDOGUCHI, Shuji , TSUNEYOSHI, Takeshi , IZAWA, Michihiro , NISHIYAMA, Shinichi , WORLEY, Marilyn E. , MATSUMURA, Kazumasa , NAKAYAMA, Kentaro
IPC分类号： E02F9/08 , B60K1/04 , E02F9/18 , E02F9/20 , E02F9/22

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式