公开(公告)号：US10072765B2

公开(公告)日：2018-09-11

申请号：US15050614

申请日：2016-02-23

Applicant: Caterpillar Inc.

Inventor： Matthew J. Beschorner ,  Mikhail A. Sorokin

IPC: F16K11/065 ,  F15B13/04 ,  F16K11/07

CPC classification number: F16K11/065 ,  F15B13/0402 ,  F15B2013/041 ,  F15B2211/30575 ,  F16K11/0716

Abstract: 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.

公开(公告)号：US09915355B2

公开(公告)日：2018-03-13

申请号：US14876082

申请日：2015-10-06

Applicant: Caterpillar Inc.

Inventor： Matthew J. Beschorner ,  Mikhail A. Sorokin

IPC: F16K3/02 ,  E02F9/22 ,  F16K3/26 ,  F16K11/22 ,  F16K27/00

CPC classification number: F16K3/0254 ,  E02F9/2267 ,  E02F9/2285 ,  E02F9/2296 ,  F16K3/0218 ,  F16K3/0227 ,  F16K3/265 ,  F16K3/267 ,  F16K11/22 ,  F16K27/003

Abstract: A spool assembly is disclosed for use in a valve. The spool assembly may have a cylindrical body with a first end, a second end, and a bore passing from the first end through the second end. The spool assembly may also have a first insert with a first land slidably disposed inside the bore at the first end, and a second insert separate from the first insert. The second insert may have a second land slidably disposed inside the bore at the second end.

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。

公开(公告)号：US20140034135A1

公开(公告)日：2014-02-06

申请号：US13947303

申请日：2013-07-22

Applicant: Caterpillar Inc.

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

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

CPC classification number: 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

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. 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.

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。 阀装置可以包括套筒，动态密封件可滑动地与其接合。 阀元件可以包括检查杆。 压力补偿系统可与与阀元件形成的孔连通。 用于监测动态密封件磨损的压力系统可以与阀装置的控制室连通。