公开(公告)号：US09885350B2

公开(公告)日：2018-02-06

申请号：US15043662

申请日：2016-02-15

Applicant: Federal Signal Corporation

Inventor： Benjamin Bacha ,  Kevin Silovich ,  Benjamen Schmitt

IPC: F04B49/00 ,  F04B49/22 ,  E02F3/88 ,  E02F3/92 ,  F04B23/02 ,  F04B23/06 ,  F04B49/08 ,  F04B49/20

CPC classification number: F04B49/002 ,  E02F3/8816 ,  E02F3/9206 ,  E02F3/925 ,  F04B23/02 ,  F04B23/06 ,  F04B49/08 ,  F04B49/20 ,  F04B49/22 ,  F04B2203/0201

Abstract: A water pump control system is provided for vacuum excavation equipment. The water pump control system includes a control circuit for controlling a hydraulic actuation circuit configured to control a water pump circuit such that a water pressure produced by the water pump circuit does not exceed a desired water pressure. The hydraulic actuation circuit can include a proportional hydraulic valve, and the control circuit controls a water pump speed by monitoring a water pressure and adjusting an electric current flowing into the proportional valve to meet the desired water pressure. The control circuit can include a pressure transducer mounted to the water pump circuit to monitor the water pressure in real-time.

公开(公告)号：US20160245272A1

公开(公告)日：2016-08-25

申请号：US15043662

申请日：2016-02-15

Applicant: Federal Signal Corporation

Inventor： Benjamin Bacha ,  Kevin Silovich ,  Benjamen Schmitt

IPC: F04B49/00 ,  F04B17/06 ,  E02F3/92 ,  F04B49/22 ,  E02F3/88 ,  E02F3/90 ,  F04B19/22 ,  F04B53/14

CPC classification number: F04B49/002 ,  E02F3/8816 ,  E02F3/9206 ,  E02F3/925 ,  F04B23/02 ,  F04B23/06 ,  F04B49/08 ,  F04B49/20 ,  F04B49/22 ,  F04B2203/0201

Abstract: A water pump control system is provided for vacuum excavation equipment. The water pump control system includes a control circuit for controlling a hydraulic actuation circuit configured to control a water pump circuit such that a water pressure produced by the water pump circuit does not exceed a desired water pressure. The hydraulic actuation circuit can include a proportional hydraulic valve, and the control circuit controls a water pump speed by monitoring a water pressure and adjusting an electric current flowing into the proportional valve to meet the desired water pressure. The control circuit can include a pressure transducer mounted to the water pump circuit to monitor the water pressure in real-time.

Abstract translation: 为真空挖掘设备提供了一个水泵控制系统。 水泵控制系统包括控制电路，用于控制液压致动电路，其构造成控制水泵回路，使得由水泵回路产生的水压不超过期望的水压。 液压驱动电路可以包括比例液压阀，并且控制电路通过监测水压并调节流入比例阀的电流来满足所需的水压来控制水泵速度。 控制电路可以包括安装在水泵电路上的压力传感器来实时监测水压。