公开(公告)号：US20190063474A1

公开(公告)日：2019-02-28

申请号：US15690389

申请日：2017-08-30

Applicant: Caterpillar Inc.

Inventor： Jason Brinkman ,  Richard Andrew Carpenter

IPC: F15B19/00 ,  G06G5/00

CPC classification number: F15B19/005 ,  F15B1/26 ,  G06G5/00

Abstract: A system for determining a health status of a tank is provided. The system includes a temperature sensor, a pressure sensor, a sensor coupled to a hydraulic actuator, a breather valve, and a controller. The controller is configured to receive a signal indicative of a temperature and a volume of a fluid within the tank from the temperature sensor and the sensor coupled to the hydraulic actuator respectively. The controller is configured to determine an estimated pressure of the fluid within the tank based on the received signals and a breather performance curve. The controller is configured to receive a signal indicative of a pressure of the fluid within the tank and compare it with the estimated pressure. The controller is also configured to determine the health status of the tank and to actuate one or more of an operator console display unit and the hydraulic actuator.

公开(公告)号：US20140150870A1

公开(公告)日：2014-06-05

申请号：US13691422

申请日：2012-11-30

Applicant: CATERPILLAR INC.

Inventor： Jason Brinkman ,  Shaun Currier ,  Eric Jakubiak

IPC: F16L41/00

CPC classification number: F16L41/03 ,  E02F9/0875 ,  Y10T137/0318 ,  Y10T137/8593 ,  Y10T137/85938 ,  Y10T137/87249

Abstract: A hydraulic system for a machine is disclosed. The hydraulic system may include a fluid tank, a first manifold, a valve body, a second manifold, and a plurality of conduits. The first manifold may be operatively attached to the fluid tank and have at least two inlets and at least one outlet in fluid communication with the fluid tank. The number of the at least one outlet may be less than the number of the at least two inlets. The second manifold may be operatively attached to the valve body and have at least one inlet in fluid communication with the valve body and at least two outlets. The number of the at least one inlet may be less than the number of the at least two outlets. The plurality of conduits may fluidly connect the at least two inlets of the first manifold and the at least two outlets of the second manifold.

Abstract translation: 公开了一种用于机器的液压系统。 液压系统可以包括流体箱，第一歧管，阀体，第二歧管和多个管道。 第一歧管可以可操作地附接到流体箱并且具有至少两个入口和至少一个与流体箱流体连通的出口。 至少一个出口的数量可以小于至少两个入口的数量。 第二歧管可以可操作地附接到阀体并且具有与阀体和至少两个出口流体连通的至少一个入口。 至少一个入口的数量可以小于至少两个出口的数量。 多个管道可以流体地连接第一歧管的至少两个入口和第二歧管的至少两个出口。

公开(公告)号：US20150337830A1

公开(公告)日：2015-11-26

申请号：US14283777

申请日：2014-05-21

Applicant: Caterpillar Inc.

Inventor： Matthew S. Marquette ,  Jeffrey K. Berry ,  Jason Brinkman

IPC: F04B49/20

CPC classification number: F04B49/20 ,  F04B49/065 ,  F04B49/08 ,  F04B49/12

Abstract: An overspeed protection method for a machine having an engine drivably coupled to a pump is disclosed. The method includes determining a speed of a rotatable component connected to the engine based on an engine speed and determining a minimum power limit based on the speed of the rotatable component. The minimum power limit corresponds to a minimum power required to retard the engine in order to prevent an overspeed condition of the rotatable component. The method further includes determining a minimum flow limit based on a predetermined relationship between the minimum power limit and the minimum flow limit. The minimum flow limit corresponds to a required flow of the pump in order to provide the minimum power limit. The method further includes regulating the pump in order to achieve the minimum flow limit.

Abstract translation: 公开了一种具有可驱动地联接到泵的发动机的机器的超速保护方法。 该方法包括基于发动机速度确定连接到发动机的可旋转部件的速度，并且基于可旋转部件的速度确定最小功率极限。 最小功率限制对应于延迟发动机所需的最小功率，以防止可旋转部件的超速状态。 该方法还包括基于最小功率极限和最小流量限制之间的预定关系来确定最小流量限制。 最小流量限制对应于泵的所需流量，以提供最小功率限制。 该方法还包括调节泵以实现最小流量限制。

公开(公告)号：US08997471B2

公开(公告)日：2015-04-07

申请号：US13691422

申请日：2012-11-30

Applicant: Caterpillar Inc.

Inventor： Jason Brinkman ,  Shaun Currier ,  Eric Jakubiak

IPC: F16L41/02 ,  F16L41/03 ,  E02F9/08

CPC classification number: F16L41/03 ,  E02F9/0875 ,  Y10T137/0318 ,  Y10T137/8593 ,  Y10T137/85938 ,  Y10T137/87249

Abstract: A hydraulic system for a machine is disclosed. The hydraulic system may include a fluid tank, a first manifold, a valve body, a second manifold, and a plurality of conduits. The first manifold may be operatively attached to the fluid tank and have at least two inlets and at least one outlet in fluid communication with the fluid tank. The number of the at least one outlet may be less than the number of the at least two inlets. The second manifold may be operatively attached to the valve body and have at least one inlet in fluid communication with the valve body and at least two outlets. The number of the at least one inlet may be less than the number of the at least two outlets. The plurality of conduits may fluidly connect the at least two inlets of the first manifold and the at least two outlets of the second manifold.

Abstract translation: 公开了一种用于机器的液压系统。 液压系统可以包括流体箱，第一歧管，阀体，第二歧管和多个管道。 第一歧管可以可操作地附接到流体箱并且具有至少两个入口和至少一个与流体箱流体连通的出口。 至少一个出口的数量可以小于至少两个入口的数量。 第二歧管可以可操作地附接到阀体并且具有与阀体和至少两个出口流体连通的至少一个入口。 至少一个入口的数量可以小于至少两个出口的数量。 多个管道可以流体地连接第一歧管的至少两个入口和第二歧管的至少两个出口。

公开(公告)号：US10337537B2

公开(公告)日：2019-07-02

申请号：US15690389

申请日：2017-08-30

Applicant: Caterpillar Inc.

Inventor： Jason Brinkman ,  Richard Andrew Carpenter

IPC: G06G5/00 ,  F15B19/00 ,  F15B1/26

Abstract: A system for determining a health status of a tank is provided. The system includes a temperature sensor, a pressure sensor, a sensor coupled to a hydraulic actuator, a breather valve, and a controller. The controller is configured to receive a signal indicative of a temperature and a volume of a fluid within the tank from the temperature sensor and the sensor coupled to the hydraulic actuator respectively. The controller is configured to determine an estimated pressure of the fluid within the tank based on the received signals and a breather performance curve. The controller is configured to receive a signal indicative of a pressure of the fluid within the tank and compare it with the estimated pressure. The controller is also configured to determine the health status of the tank and to actuate one or more of an operator console display unit and the hydraulic actuator.

公开(公告)号：US09739273B2

公开(公告)日：2017-08-22

申请号：US14283777

申请日：2014-05-21

Applicant: Caterpillar Inc.

Inventor： Matthew S. Marquette ,  Jeffrey K. Berry ,  Jason Brinkman

IPC: F04B49/20 ,  F04B49/06 ,  F04B49/08 ,  F04B49/12

CPC classification number: F04B49/20 ,  F04B49/065 ,  F04B49/08 ,  F04B49/12

Abstract: An overspeed protection method for a machine having an engine drivably coupled to a pump is disclosed. The method includes determining a speed of a rotatable component connected to the engine based on an engine speed and determining a minimum power limit based on the speed of the rotatable component. The minimum power limit corresponds to a minimum power required to retard the engine in order to prevent an overspeed condition of the rotatable component. The method further includes determining a minimum flow limit based on a predetermined relationship between the minimum power limit and the minimum flow limit. The minimum flow limit corresponds to a required flow of the pump in order to provide the minimum power limit. The method further includes regulating the pump in order to achieve the minimum flow limit.