公开(公告)号：US20180106387A1

公开(公告)日：2018-04-19

申请号：US15296093

申请日：2016-10-18

申请人： Caterpillar Inc.

发明人： Matthew J. Beschorner ,  Matthew P. Giacomi ,  Joseph Yousef

IPC分类号： F16K11/07 ,  F16K31/06 ,  F15B13/04 ,  F15B1/26

CPC分类号： F16K11/0716 ,  F15B1/26 ,  F15B13/0402 ,  F15B2211/205 ,  F16K11/07 ,  F16K31/0613 ,  Y10T137/8671 ,  Y10T137/86767

摘要： The present disclosure describes a spool for a hydraulic valve. The spool includes a cylindrical body having at least one slot configured to engage with a valve body of the hydraulic valve. The spool also includes a first chamber and a second chamber located downstream of the first chamber and in fluid communication with the first chamber. The first chamber is defined within the cylindrical body and configured to receive fluid through a plurality of holes defined in the cylindrical body. An inner diameter of the second chamber is less than an inner diameter of the first chamber. The first chamber is configured to elongate along a longitudinal axis thereof based on a pressure of the fluid received within the first chamber. Further, an outer surface of the first chamber is configured to contract based on the elongation of the first chamber.

公开(公告)号：US20140034133A1

公开(公告)日：2014-02-06

申请号：US13832085

申请日：2013-03-15

申请人： CATERPILLAR INC.

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

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

CPC分类号： 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

摘要： 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.

摘要翻译： 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：US09651067B2

公开(公告)日：2017-05-16

申请号：US13947303

申请日：2013-07-22

申请人： Caterpillar Inc.

发明人： Matthew J. Beschorner ,  Eric C. Hughes ,  Mikhail A. Sorokine ,  James A. Aardema ,  Thomas J. Hajek ,  Aleksandra M. Egelja

IPC分类号： F15B13/04 ,  F15B19/00 ,  F16K37/00 ,  F15B20/00 ,  F16K31/12 ,  F15B13/043

CPC分类号： F15B19/005 ,  F15B13/0435 ,  F15B20/008 ,  F15B2211/20546 ,  F15B2211/50518 ,  F15B2211/55 ,  F15B2211/6316 ,  F15B2211/6355 ,  F15B2211/857 ,  F15B2211/8636 ,  F15B2211/8752 ,  F16K31/12 ,  F16K37/0041 ,  Y10T137/0318 ,  Y10T137/7768 ,  Y10T137/8326

摘要： 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. The valve arrangement may include a sleeve against which the dynamic seal is slidably engaged. The valve element may include a check stem. A pressure compensating system may be in communication with bores formed in with the valve element. A pressure system to monitor dynamic seal wear may be in communication with the control chamber of the valve arrangement.

公开(公告)号：US09394928B2

公开(公告)日：2016-07-19

申请号：US13832085

申请日：2013-03-15

申请人： Caterpillar Inc.

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

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

CPC分类号： 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

摘要： 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.

摘要翻译： 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：US10247315B2

公开(公告)日：2019-04-02

申请号：US15296093

申请日：2016-10-18

申请人： Caterpillar Inc.

发明人： Matthew J. Beschorner ,  Matthew P. Giacomi ,  Joseph Yousef

IPC分类号： F16K11/07 ,  F16K31/06 ,  F15B13/04 ,  F15B1/26

摘要： A spool for a hydraulic valve includes a cylindrical body having a first end, a second end disposed opposite the first end, and an annular wall defined by an internal surface of the cylindrical body and an external surface of the cylindrical body. The annular wall defines a plurality of holes therethrough. The internal surface defines a first chamber, a second chamber, and a slot chamber within the cylindrical body, the second chamber being in fluid communication with the plurality of holes via the first chamber, the slot chamber being located between the second chamber and the second end of the cylindrical body. The annular wall defines a slot therethrough, the slot extending from the second end of the cylindrical body toward the first end of the cylindrical body along the longitudinal direction, the slot being open at the second end of the cylindrical body along the longitudinal direction.

公开(公告)号：US09897228B2

公开(公告)日：2018-02-20

申请号：US14934576

申请日：2015-11-06

申请人： Caterpillar Inc.

发明人： Dennis Ray Barber ,  Matthew J. Beschorner

IPC分类号： F16K31/06 ,  F16K31/42 ,  F16K11/07 ,  F15B11/08 ,  F15B13/04

CPC分类号： F16K31/426 ,  F15B11/08 ,  F15B13/0402 ,  F15B13/0435 ,  F15B2211/20576 ,  F15B2211/255 ,  F15B2211/30575 ,  F15B2211/329 ,  F15B2211/351 ,  F15B2211/353 ,  F16K11/07 ,  Y10T137/86622

摘要： A valve is disclosed for use with a hydraulic circuit including a valve block, a central bore and an actuator passage formed in the valve block, and at least one of a supply and a drain passage. The valve also includes a control spool movable to selectively connect the actuator passage and at least one of the supply passage and the drain passage. The control spool includes a base end, and a tip end with a tapered outer surface. The valve also includes a first actuator configured to selectively direct pilot fluid to the tip end of the control spool, and a second actuator configured to selectively direct pilot fluid to the base end of the control spool. The first and second actuators each include a primary axis oriented generally orthogonal to an axis of the control spool, and are located at opposing sides of the control spool.

公开(公告)号：US20180112685A1

公开(公告)日：2018-04-26

申请号：US15299513

申请日：2016-10-21

申请人： Caterpillar Inc.

发明人： Matthew J. Beschorner ,  Dustin K. Fee ,  Ioan Paduret ,  David J. Subert

IPC分类号： F15B13/04 ,  F16K31/06 ,  F16K11/07 ,  F16K27/00 ,  F16K37/00 ,  G05D7/06

CPC分类号： F15B21/087 ,  F15B13/043 ,  F15B13/086 ,  F15B2013/0409 ,  F15B2211/20546 ,  F15B2211/327 ,  F15B2211/355 ,  F15B2211/575 ,  F15B2211/634 ,  F15B2211/6346 ,  F15B2211/635 ,  F15B2211/6656 ,  F16K3/262 ,  F16K3/265 ,  F16K11/22 ,  F16K27/003 ,  F16K31/0668 ,  F16K31/12 ,  G05D7/0664 ,  G05D16/2022 ,  G05D16/206

摘要： A system for controlling operation of a hydraulic valve is provided. The system includes a solenoid coupled to a spool assembly of the hydraulic valve. The system further includes a sensor disposed on the hydraulic valve. The sensor generates signals indicative of operational parameter of the hydraulic valve. The system also includes a controller in communication with the solenoid and the sensor. The controller receives signals generated by the sensor. The controller includes a booster circuit connected to the solenoid. The booster circuit boosts an actuating current generated in response to the signals received from the sensor. The controller further includes a switching circuit connected across the solenoid. The switching circuit controls a direction of the actuating current flowing through the solenoid. The solenoid actuates the spool assembly of the hydraulic valve to control the operation of the hydraulic valve based on the actuating current.

公开(公告)号：US09803665B2

公开(公告)日：2017-10-31

申请号：US14660192

申请日：2015-03-17

申请人： Caterpillar Inc.

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

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

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

摘要： 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：US09599238B2

公开(公告)日：2017-03-21

申请号：US14678101

申请日：2015-04-03

申请人： Caterpillar Inc.

发明人： Matthew J. Beschorner ,  Bryan A. Johnson ,  Hideki Nakajima

IPC分类号： F16K11/07

CPC分类号： F16K11/0712 ,  F15B13/0402 ,  F15B13/0405 ,  F15B13/0417 ,  F15B2013/008 ,  F15B2211/30575 ,  Y10T137/86461

摘要： A spool is disclosed for use in a valve. The spool may have an elongated cylindrical body with a first end and a second end. The spool may also have a first land formed at the first end, a second land axially spaced apart from the first land, and a check element located between the first and second lands. The check element may have an outer diameter that is about 0.5-1% greater than an outer diameter of the second land.

公开(公告)号：US20170002936A1

公开(公告)日：2017-01-05

申请号：US15050614

申请日：2016-02-23

申请人： Caterpillar Inc.

发明人： Matthew J. Beschorner ,  Mikhail A. Sorokin

IPC分类号： F16K11/065

CPC分类号： F16K11/065 ,  F15B13/0402 ,  F15B2013/041 ,  F15B2211/30575 ,  F16K11/0716

摘要： A spool assembly is disclosed for use in a valve. The spool assembly may have a cylindrical body that is hollow and has a least one radially oriented orifice that passes through a wall of the cylindrical body. The spool assembly may also have an insert slidably disposed inside the cylindrical body. The insert may have a land that axially divides a space inside the cylindrical body.

摘要翻译： 公开了一种用于阀门的卷轴组件。 卷轴组件可以具有中空的圆柱形主体，并且具有穿过圆柱形主体的壁的至少一个径向定向的孔。 卷轴组件还可以具有可滑动地设置在圆柱体内的插入件。 插入件可以具有轴向地划分圆柱体内的空间的平台。