公开(公告)号：US20140034133A1

公开(公告)日：2014-02-06

申请号：US13832085

申请日：2013-03-15

Applicant: CATERPILLAR INC.

Inventor： Matthew J. Beschorner ,  Aleksandar M. Egelja ,  Eric Hughes ,  Mikhail Sorokine

IPC: F15B19/00 ,  F15B20/00 ,  F16K31/12 ,  F16K37/00

CPC classification number: F15B19/005 ,  F15B20/008 ,  F15B2211/30575 ,  F15B2211/329 ,  F15B2211/36 ,  F15B2211/6316 ,  F15B2211/8636 ,  F15B2211/87 ,  F16K11/0712 ,  F16K31/12 ,  F16K37/0041 ,  F16K37/005 ,  Y10T137/0318 ,  Y10T137/7768 ,  Y10T137/8326

Abstract: A system can include one or more valve arrangements with a working chamber to receive a working fluid at a first pressure, and a control chamber to receive fluid at a second pressure. A dynamic seal can be disposed on a land of a valve element. A supply passage can be in communication between the control chamber and a tank and can include a check valve. A relief valve can be disposed between the check valve and the control chamber. A pilot pump and another relief valve may be disposed upstream of the check valve. The relief valve downstream of the check valve can have a higher pressure limit than the downstream one. A pressure sensor may be disposed between the check valve and the control chamber and used to warn the operator of a high pressure in the control chamber.

Abstract translation: 系统可以包括具有工作室的一个或多个阀装置，以在第一压力下接收工作流体，以及控制室，以在第二压力下接收流体。 可以在阀元件的台面上设置动态密封件。 供应通道可以在控制室和罐之间连通，并且可以包括止回阀。 安全阀可以设置在止回阀和控制室之间。 先导泵和另一安全阀可以设置在止回阀的上游。 止回阀下游的安全阀可以具有比下游更高的压力极限。 压力传感器可以设置在止回阀和控制室之间，并且用于警告操作者控制室中的高压。

公开(公告)号：US09394928B2

公开(公告)日：2016-07-19

申请号：US13832085

申请日：2013-03-15

Applicant: Caterpillar Inc.

Inventor： Matthew J. Beschorner ,  Aleksandar M. Egelja ,  Eric Hughes ,  Mikhail Sorokine

IPC: F17D1/00 ,  F15B19/00 ,  F16K37/00 ,  F15B20/00 ,  F16K31/12 ,  F16K11/07

CPC classification number: F15B19/005 ,  F15B20/008 ,  F15B2211/30575 ,  F15B2211/329 ,  F15B2211/36 ,  F15B2211/6316 ,  F15B2211/8636 ,  F15B2211/87 ,  F16K11/0712 ,  F16K31/12 ,  F16K37/0041 ,  F16K37/005 ,  Y10T137/0318 ,  Y10T137/7768 ,  Y10T137/8326

Abstract: A system can include one or more valve arrangements with a working chamber to receive a working fluid at a first pressure, and a control chamber to receive fluid at a second pressure. A dynamic seal can be disposed on a land of a valve element. A supply passage can be in communication between the control chamber and a tank and can include a check valve. A relief valve can be disposed between the check valve and the control chamber. A pilot pump and another relief valve may be disposed upstream of the check valve. The relief valve downstream of the check valve can have a higher pressure limit than the downstream one. A pressure sensor may be disposed between the check valve and the control chamber and used to warn the operator of a high pressure in the control chamber.

Abstract translation: 系统可以包括具有工作室的一个或多个阀装置，以在第一压力下接收工作流体，以及控制室，以在第二压力下接收流体。 可以在阀元件的台面上设置动态密封件。 供应通道可以在控制室和罐之间连通，并且可以包括止回阀。 安全阀可以设置在止回阀和控制室之间。 先导泵和另一安全阀可以设置在止回阀的上游。 止回阀下游的安全阀可以具有比下游更高的压力极限。 压力传感器可以设置在止回阀和控制室之间，并且用于警告操作者控制室中的高压。

公开(公告)号：US09803665B2

公开(公告)日：2017-10-31

申请号：US14660192

申请日：2015-03-17

Applicant: Caterpillar Inc.

Inventor： Matthew J. Beschorner ,  Eric Hughes ,  Naoto Funabiki ,  Tomohiro Oyama ,  Brett J. Janson

IPC: F15B21/04 ,  F15B19/00 ,  E02F9/22

CPC classification number: F15B21/042 ,  E02F9/2235 ,  E02F9/226 ,  E02F9/2292 ,  E02F9/2296 ,  F15B19/00 ,  F15B2211/41563 ,  F15B2211/62 ,  F15B2211/6313 ,  F15B2211/6343 ,  F15B2211/66 ,  F15B2211/6652

Abstract: A control system for a machine is disclosed. The control system may have a bypass passage situated to allow fluid to bypass an actuator, and a warmup valve disposed within the bypass passage that is movable between flow-passing and-blocking positions. A controller is configured to move the warmup valve to the flow-passing position, fix a displacement position of the pump, compare the pressure of the fluid of the actuator with a threshold, and move the warmup valve to the flow-blocking position and reduce a pump outlet pressure when the pressure of the fluid is greater than the threshold. The controller may be configured to move the warmup valve to the flow-passing position, fix a displacement position of the pump, and adjust an input speed of the pump in response to the signal.

公开(公告)号：US20150308469A1

公开(公告)日：2015-10-29

申请号：US14660192

申请日：2015-03-17

Applicant: Caterpillar Inc.

Inventor： Matthew J. Beschorner ,  Eric Hughes ,  Naoto Funabiki ,  Tomohiro Oyama ,  Brett J. Janson

IPC: F15B21/04 ,  F15B19/00

CPC classification number: F15B21/042 ,  E02F9/2235 ,  E02F9/226 ,  E02F9/2292 ,  E02F9/2296 ,  F15B19/00 ,  F15B2211/41563 ,  F15B2211/62 ,  F15B2211/6313 ,  F15B2211/6343 ,  F15B2211/66 ,  F15B2211/6652

Abstract: A control system for a machine is disclosed. The control system may have a bypass passage situated to allow fluid to bypass an actuator, and a warmup valve disposed within the bypass passage that is movable between flow-passing and-blocking positions. A controller is configured to move the warmup valve to the flow-passing position, fix a displacement position of the pump, compare the pressure of the fluid of the actuator with a threshold, and move the warmup valve to the flow-blocking position and reduce a pump outlet pressure when the pressure of the fluid is greater than the threshold. The controller may be configured to move the warmup valve to the flow-passing position, fix a displacement position of the pump, and adjust an input speed of the pump in response to the signal.

Abstract translation: 公开了一种用于机器的控制系统。 控制系统可以具有旁路通道，其设置成允许流体绕过致动器，以及设置在旁通通道内的预热阀，其可在流动和阻塞位置之间移动。 控制器被配置为将暖机阀移动到流通位置，固定泵的位移位置，将致动器的流体的压力与阈值进行比较，并将加热阀移动到阻流位置并减小 当流体的压力大于阈值时的泵出口压力。 控制器可以被配置为将暖机阀移动到流通位置，固定泵的位移位置，并响应于该信号来调节泵的输入速度。