公开(公告)号：US20170009430A1

公开(公告)日：2017-01-12

申请号：US15113486

申请日：2015-01-27

Applicant: KYB Corporation

Inventor： Nobuyoshi YOSHIDA ,  Ikuo INAGAKI

IPC: E02F9/22 ,  F15B13/06 ,  F15B13/02 ,  F15B11/16

CPC classification number: E02F9/2225 ,  E02F3/32 ,  E02F9/2232 ,  E02F9/2235 ,  E02F9/2239 ,  E02F9/2267 ,  E02F9/2282 ,  E02F9/2285 ,  E02F9/2292 ,  E02F9/2296 ,  F15B11/00 ,  F15B11/16 ,  F15B11/17 ,  F15B13/022 ,  F15B13/06 ,  F15B2211/20553 ,  F15B2211/20576 ,  F15B2211/30595 ,  F15B2211/327 ,  F15B2211/329 ,  F15B2211/36 ,  F15B2211/41554 ,  F15B2211/426 ,  F15B2211/428 ,  F15B2211/45 ,  F15B2211/6652 ,  F15B2211/71 ,  F15B2211/7142

Abstract: A working machine control system includes: a split-flow fluid pressure pump configured to discharge a working fluid from a first discharge port and a second discharge port; a communication switching valve configured to be switched by a switch signal when any one of a first operation valve and a second operation valve is switched so as to allow a first neutral passage and a second neutral passage to communicate with each other; a neutral cut valve configured to be switched by the switch signal so as to block communication between a tank and one of the first neutral passage and the second neutral passage for the first operation valve or the second operation valve that is not switched; and a discharge flow rate adjusting device configured to adjust the fluid pressure pump so as to reduce a discharge flow rate thereof when the switch signal is inputted from any one of the first operation valve and the second operation valve.

Abstract translation: 一种工作机械控制系统，包括：分流流体压力泵，其构造成从第一排出口和第二排出口排出工作流体; 通信切换阀，被配置为当第一操作阀和第二操作阀中的任何一个被切换以便允许第一中性通路和第二中性通路彼此连通时由开关信号切换; 构造成通过开关信号切换的中性切断阀，以阻止油箱与未切换的第一操作阀或第二操作阀的第一中性通道和第二空档通道中的一个之间的连通; 以及排出流量调节装置，其构造成当从所述第一操作阀和所述第二操作阀中的任一个输入所述切换信号时，调整所述流体压力泵以便减小其排出流量。

公开(公告)号：US20170009429A1

公开(公告)日：2017-01-12

申请号：US15113071

申请日：2015-01-27

Applicant: KYB CORPORATION

Inventor： Nobuyoshi YOSHIDA ,  Ikuo INAGAKI

IPC: E02F9/22 ,  F15B1/04 ,  F15B13/043 ,  F15B13/04

CPC classification number: E02F9/2225 ,  E02F3/32 ,  E02F9/2232 ,  E02F9/2239 ,  E02F9/2267 ,  E02F9/2285 ,  E02F9/2292 ,  E02F9/2296 ,  F15B1/04 ,  F15B11/17 ,  F15B13/0401 ,  F15B13/043 ,  F15B2211/20553 ,  F15B2211/20576 ,  F15B2211/30595 ,  F15B2211/327 ,  F15B2211/329 ,  F15B2211/36 ,  F15B2211/45 ,  F15B2211/6652 ,  F15B2211/7142

Abstract: A working machine control system includes: a split-flow fluid pressure pump configured to discharge a working fluid from a first discharge port and a second discharge port; a communication switching valve configured to allow, when one of a first operation valve and a second operation valve is switched, the first discharge port or the second discharge port for one of the first operation valve and the second operation valve that is not switched to communicate with a first neutral passage or a second neutral passage for the other of the first operation valve and the second operation valve that is switched; and a discharge flow rate adjusting device configured to adjust the fluid pressure pump so as to reduce a discharge flow rate of the fluid pressure pump in a case where a switch signal is inputted from any one of the first operation valve and the second operation valve.

Abstract translation: 一种工作机械控制系统，包括：分流流体压力泵，其构造成从第一排出口和第二排出口排出工作流体; 一个通信切换阀，被配置为当第一操作阀和第二操作阀中的一个被切换时，允许第一操作阀和第二操作阀之一的第一排出口或第二排出口不被切换为连通 第一中性通道或第二中性通道用于第一操作阀和第二操作阀中的另一个被切换; 以及排出流量调节装置，其被配置为在从所述第一操作阀和所述第二操作阀中的任一个输入开关信号的情况下调节所述流体压力泵，以便降低所述流体压力泵的排出流量。

公开(公告)号：US20160265560A1

公开(公告)日：2016-09-15

申请号：US15032908

申请日：2015-01-27

Applicant: KYB CORPORATION

Inventor： Nobuyoshi YOSHIDA ,  Ikuo INAGAKI

IPC: F15B11/10 ,  E02F9/22 ,  F15B13/02

CPC classification number: F15B11/10 ,  E02F3/32 ,  E02F9/2228 ,  E02F9/2232 ,  E02F9/2235 ,  E02F9/2267 ,  E02F9/2282 ,  E02F9/2285 ,  E02F9/2292 ,  E02F9/2296 ,  F15B11/17 ,  F15B13/026 ,  F15B2211/20546 ,  F15B2211/20576 ,  F15B2211/45 ,  F15B2211/7142

Abstract: A working machine control system includes a split flow type fluid pressure pump configured to discharge a working fluid from a first discharge port and a second discharge port, and a lower pressure selection circuit configured to select and communicate with a working fluid of lower pressure among a working fluid on the downstream of a first operation valve of a first neutral passage in a first circuit system to which a working fluid discharged from the first discharge port is supplied, and a working fluid on the downstream of a second operation valve of a second neutral passage in a second circuit system to which a working fluid discharged from the second discharge port is supplied. The fluid pressure pump is adjusted in such a manner that the lower the pressure of the working fluid selected by the lower pressure selection circuit is, the more a discharge flow rate is increased.

Abstract translation: 一种工作机械控制系统，包括：分流式流体压力泵，其构造成从第一排出口和第二排出口排出工作流体;以及低压选择回路，其构造成选择和连通低压的工作流体， 在从第一排出口排出的工作流体的第一回路系统中的第一中性通路的第一操作阀的下游侧的工作流体，以及位于第二中性点的第二操作阀的下游的工作流体 在从第二排出口排出的工作流体的第二回路系统中通过。 调节流体压力泵，使得由下压力选择回路选择的工作流体的压力越低，排出流量增加越多。

公开(公告)号：US20200166148A1

公开(公告)日：2020-05-28

申请号：US16637608

申请日：2018-12-03

Applicant: KYB Corporation

Inventor： Takeshi TERAO ,  Atsushi FUJII ,  Nobuyoshi YOSHIDA

IPC: F16K17/02 ,  F15B13/04 ,  F15B13/02

Abstract: A valve device includes a relief valve configured to be opened when a pressure in a fluid pressure circuit reaches a predetermined pressure and to relieve a working fluid, a tank passage connected to a tank, a main relief passage connecting the relief valve and the tank passage, and a sub relief passage branching from the main relief passage and connected to the tank passage separately from the main relief passage.

公开(公告)号：US20170074292A1

公开(公告)日：2017-03-16

申请号：US15120773

申请日：2014-12-16

Applicant: KYB CORPORATION

Inventor： Shunsuke FUKUDA ,  Nobuyoshi YOSHIDA

IPC: F15B11/17 ,  F16K15/02 ,  F16K31/122 ,  E02F9/22 ,  F16K11/07

CPC classification number: F15B11/17 ,  E02F9/2228 ,  E02F9/2239 ,  E02F9/2253 ,  E02F9/2267 ,  E02F9/2282 ,  E02F9/2285 ,  E02F9/2292 ,  F15B11/02 ,  F16K11/0716 ,  F16K15/02 ,  F16K31/1221

Abstract: A fluid pressure control device for a construction machine includes a first circuit system connected to the first pump; a second circuit system connected to the second pump; a switching valve having a normal position, a straight traveling position and a merging position where the working fluid of the branch section is merged into the second neutral passage; and an open/close mechanism configured to open/close the first neutral passage. In a case where at least one of the control valves, on which merging is required, on the downstream of the second traveling control valve is switched to a position other than the neutral position, by closing the first neutral passage by the open/close mechanism and switching the switching valve to the merging position, the working fluid of the first pump is merged into the working fluid of the second pump.

Abstract translation: 一种用于建筑机械的流体压力控制装置，包括连接到第一泵的第一回路系统; 连接到第二泵的第二电路系统; 切换阀，其具有正常位置，直线行进位置和合流位置，其中分支部分的工作流体合并到第二中立通道中; 以及构造成打开/关闭第一中立通道的打开/关闭机构。 在需要合流的控制阀中的至少一个在第二行驶控制阀的下游切换到除了中立位置之外的位置的情况下，通过打开/关闭机构关闭第一中立通道 并且将切换阀切换到合流位置，第一泵的工作流体被合并到第二泵的工作流体中。