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公开(公告)号：US09863120B2
公开(公告)日：2018-01-09
申请号：US14699024
申请日：2015-04-29
Applicant: Caterpillar Inc.
Inventor： William N. O'Neill , Lance M. Cowper , Michael T. Jackson
CPC classification number: E02F3/844 , E02F3/7618 , E02F9/2203
Abstract: A control system for a work implement of a machine having a frame is provided. The control system includes a pair of lift cylinders operatively coupled to the work implement and configured to raise or lower the work implement with respect to the frame. Each of the lift cylinders has a rod end and a cap end. The control system includes a first cross-over line configured to fluidly communicate the rod ends to each other and a second cross-over line configured to fluidly communicate the cap ends to each other. The control system includes a cross-over valve disposed in one of the first and second cross-over lines and configured to regulate a flow of hydraulic fluid therethrough. The control system further includes a controller communicably coupled to the cross-over valve and configured to at least partially close the cross-over valve during a dump cycle of the work implement.
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公开(公告)号：US20160319512A1
公开(公告)日：2016-11-03
申请号：US14699024
申请日：2015-04-29
Applicant: Caterpillar Inc.
Inventor： William N. O'Neill , Lance M. Cowper , Michael T. Jackson
CPC classification number: E02F3/844 , E02F3/7618 , E02F9/2203
Abstract: A control system for a work implement of a machine having a frame is provided. The control system includes a pair of lift cylinders operatively coupled to the work implement and configured to raise or lower the work implement with respect to the frame. Each of the lift cylinders has a rod end and a cap end. The control system includes a first cross-over line configured to fluidly communicate the rod ends to each other and a second cross-over line configured to fluidly communicate the cap ends to each other. The control system includes a cross-over valve disposed in one of the first and second cross-over lines and configured to regulate a flow of hydraulic fluid therethrough. The control system further includes a controller communicably coupled to the cross-over valve and configured to at least partially close the cross-over valve during a dump cycle of the work implement.
Abstract translation: 提供了一种具有框架的机器的工作装置的控制系统。 控制系统包括一对可操作地联接到工作工具并且构造成相对于框架升高或降低工作工具的提升缸。 每个提升缸具有杆端和帽端。 控制系统包括：第一交叉线，其配置成将杆端部彼此流体连通;以及第二交叉线，其配置成将帽端部彼此流体连通。 控制系统包括设置在第一和第二交叉管线中的一个中并被构造成调节通过其的液压流体流动的交叉阀。 所述控制系统还包括可通信地联接到所述交叉阀并被配置为在所述工作装置的转储循环期间至少部分地关闭所述交叉阀的控制器。
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公开(公告)号：US11814269B2
公开(公告)日：2023-11-14
申请号：US17218241
申请日：2021-03-31
Applicant: Caterpillar Inc.
Inventor： Robert A. Jackson , Benjamin Barbier , Curtis J. Caldwell , Michael T. Jackson
CPC classification number: B66C23/76 , B66C23/44 , B66C2700/0357 , B66C2700/0392
Abstract: A mobile pipelayer machine includes a machine chassis having a forward end, a rear end, a first side, and a second side, and a boom extending from the first side of the machine chassis. The mobile pipelayer machine also includes a movable counterweight system extending from the second side of the machine chassis, the movable counterweight system being selectively movable to change a center of gravity of the machine in at least one of a forward or a rearward direction.
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