| 发明名称 |
METHODS AND APPARATUS TO DIAGNOSE A VALVE USING ELECTRIC VALVE ACTUATORS |
| 摘要 |
Methods and apparatus to diagnose a valve using electric valve actuators are disclosed. An example apparatus includes an electric motor to actuate a valve, rotation sensors to monitor a rotation of a drive shaft associated with the electric motor to determine a distance travelled by the drive shaft, and a valve position sensor to monitor a position of a flow control member of the valve. The example electric valve actuator further includes a processor to generate an alert based on feedback from the rotation sensors and the valve position sensor, the alert associated with a failure of the valve. |
| 申请公布号 |
US2015149100(A1) |
申请公布日期 |
2015.05.28 |
| 申请号 |
US201414553362 |
申请日期 |
2014.11.25 |
| 申请人 |
Fisher Controls International LLC |
发明人 |
Eisenbeis Clyde T.;Pesek Thomas;Schade Ross |
| 分类号 |
F16K37/00;G01B7/00;G01M13/02;G01B7/30 |
主分类号 |
F16K37/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An apparatus comprising:
an electric motor to actuate a valve; rotation sensors to monitor a rotation of a drive shaft associated with the electric motor to determine a distance travelled by the drive shaft; a valve position sensor to monitor a position of a flow control member of the valve; and a processor to generate an alert based on feedback from the rotation sensors and the valve position sensor, the alert associated with a failure of the valve. |
| 地址 |
Marshalltown IA US |
