公开(公告)号：US20160003267A1

公开(公告)日：2016-01-07

申请号：US14321047

申请日：2014-07-01

Applicant: Caterpillar Inc.

Inventor： Matthew Beschorner ,  Brett Janson ,  Anthony Sanders

IPC: F15B13/02 ,  E02F3/30 ,  E02F3/42 ,  F15B1/26 ,  F15B15/14

CPC classification number: E02F3/30 ,  E02F3/425 ,  F15B11/028 ,  F15B2211/30575 ,  F15B2211/365 ,  F15B2211/50518 ,  F15B2211/5157 ,  F15B2211/5159 ,  F15B2211/55 ,  F15B2211/6309 ,  F15B2211/6313

Abstract: A hydraulic system includes one or more sensors configured to measure a pressure at least one input or end of a hydraulic actuation device, such as a cylinder for example. A control module can be operatively coupled to the sensors and at least one metering valve. The control module can selectively open the metering valve when the pressure at one of the ends of the cylinder reaches a first pressure threshold to control the force on the cylinder rod, to permit flow from the end of the cylinder to the tank.

Abstract translation: 液压系统包括一个或多个传感器，其配置成测量例如液压致动装置（例如气缸）的至少一个输入或端部的压力。 控制模块可以可操作地耦合到传感器和至少一个计量阀。 当气缸的一端处的压力达到第一压力阈值时，控制模块可以选择性地打开计量阀，以控制气缸杆上的力，以允许从气缸的端部流向罐。

公开(公告)号：US20180156244A1

公开(公告)日：2018-06-07

申请号：US15367675

申请日：2016-12-02

Applicant: Caterpillar Inc.

Inventor： Pengfei Ma ,  Aleksandar Egelja ,  Justin Speichinger ,  Shuhei Orimoto ,  Tetsuya Yoshino ,  Hideki Nakajima ,  Shogo Tada ,  Aleem Junaidi ,  Bryan Johnson ,  Matthew Beschorner

IPC: F15B13/04 ,  F15B11/08 ,  F15B13/02 ,  F15B21/14 ,  F15B1/26 ,  F15B13/044

CPC classification number: F15B13/0402 ,  F15B1/26 ,  F15B11/003 ,  F15B11/024 ,  F15B11/08 ,  F15B13/021 ,  F15B13/024 ,  F15B13/044 ,  F15B13/0442 ,  F15B21/14 ,  F15B2011/0246 ,  F15B2211/50

Abstract: A hydraulic system is disclosed. The hydraulic system may include a source of pressurized fluid; a tank; a hydraulic actuator including a first chamber and a second chamber; a first independent metering valve disposed between and fluidly connected to the source, the tank, and the first chamber of the hydraulic actuator; and a second independent metering valve disposed between and fluidly connected to the source, the tank, and the second chamber of the hydraulic actuator. Each of the first independent metering valve and the second independent metering valve may include a spool and a valve actuator disposed on one side of the spool. The valve actuator may include a push coil, a pull coil, and a force feedback mechanism configured to balance a force of the push coil and the pull coil.

公开(公告)号：US20170198831A1

公开(公告)日：2017-07-13

申请号：US14992452

申请日：2016-01-11

Applicant: Caterpillar Inc.

Inventor： Matthew Beschorner ,  Naoto Funabiki ,  Brett Janson

IPC: F16K37/00 ,  G01M3/28 ,  F16K17/02

CPC classification number: G01M3/2876 ,  E02F9/2203 ,  F15B19/00 ,  F15B20/005 ,  F15B2211/50518 ,  F15B2211/50536 ,  F15B2211/5157 ,  F15B2211/5159 ,  F15B2211/526 ,  F15B2211/6309 ,  F15B2211/6313 ,  F15B2211/665 ,  F15B2211/855

Abstract: A system for monitoring performance of a relief valve in a hydraulic system having a hydraulic actuator includes a supply discharge line fluidly coupled between a source of pressurized fluid and a fluid chamber of the actuator. The supply discharge line has a supply valve disposed therein. The system also includes a main relief line and a line relief line fluidly coupled to the supply discharge line. The main relief line includes a main relief valve and is disposed upstream of the supply valve while the line relief line includes a line relief valve and is disposed downstream of the supply valve. The line relief valve is configured to open at a pressure value greater than that used in the main relief valve. A controller compares fluid pressures in the main relief line and the line relief line to determine if the line relief valve is leaking.

公开(公告)号：US10337532B2

公开(公告)日：2019-07-02

申请号：US15367675

申请日：2016-12-02

Applicant: Caterpillar Inc.

Inventor： Pengfei Ma ,  Aleksandar Egelja ,  Justin Speichinger ,  Shuhei Orimoto ,  Tetsuya Yoshino ,  Hideki Nakajima ,  Shogo Tada ,  Aleem Junaidi ,  Bryan Johnson ,  Matthew Beschorner

IPC: F15B13/04 ,  F15B11/08 ,  F15B13/02 ,  F15B21/14 ,  F15B1/26 ,  F15B13/044 ,  F15B11/00 ,  F15B11/024

Abstract: A hydraulic system is disclosed. The hydraulic system may include a source of pressurized fluid; a tank; a hydraulic actuator including a first chamber and a second chamber; a first independent metering valve disposed between and fluidly connected to the source, the tank, and the first chamber of the hydraulic actuator; and a second independent metering valve disposed between and fluidly connected to the source, the tank, and the second chamber of the hydraulic actuator. Each of the first independent metering valve and the second independent metering valve may include a spool and a valve actuator disposed on one side of the spool. The valve actuator may include a push coil, a pull coil, and a force feedback mechanism configured to balance a force of the push coil and the pull coil.

公开(公告)号：US20150267831A1

公开(公告)日：2015-09-24

申请号：US14660505

申请日：2015-03-17

Applicant: Caterpillar Inc.

Inventor： Matthew Beschorner ,  Salik Syed ,  John Ferraz ,  Mikhail Sorokin

IPC: F16K27/12

CPC classification number: F16K27/12

Abstract: A valve cover includes a first cover portion, second cover portion, web, and a plurality of bolt holes formed therein. The first cover portion has a first shape. The second cover portion has a second shape that is different from the first shape. The web connects the first cover portion to the second cover portion. The valve cover has a long axis disposed along the first cover portion, web and second cover portion. A first bolt hole of the plurality of bolt holes is offset from a remainder of the plurality of the bolt holes.

Abstract translation: 阀盖包括形成在其中的第一盖部分，第二盖部分，腹板和多个螺栓孔。 第一盖部具有第一形状。 第二盖部具有与第一形状不同的第二形状。 纸幅将第一盖部分连接到第二盖部分。 阀盖具有沿着第一盖部分，腹板和第二盖部分设置的长轴。 多个螺栓孔中的第一螺栓孔与多个螺栓孔的其余部分偏移。