Rotary Actuated Valve with Position Indicator

摘要

The subject matter of this specification can be embodied in, among other things, a positioning device that includes an actuator assembly configured to actuate an output shaft based on an input signal, and a position sensor assembly. The position sensor assembly includes a position sensor configured to detect a position of an input shaft not directly coupled to the output shaft, a first input receiver configured to receive the input signal, a first output transmitter configured to provide an output signal based on the position of the input shaft, and a second output transmitter configured to provide another output signal indicative of a failure of at least one of the input shaft and the output shaft. A moveable member is coupled to both the output shaft and the input shaft and is configured to alter the positional configuration of the input shaft and to be actuated by the output shaft.

主权项

1. A positioning device comprising:
an actuator assembly coupled to an output shaft and configured to actuate the output shaft based on an input signal; a position sensor assembly comprising:
a position sensor configured to detect a positional configuration of an input shaft not directly coupled to the output shaft;a first input receiver configured to receive the input signal;a first output transmitter configured to provide a first output signal based on the positional configuration of the input shaft; anda second output transmitter configured to provide a second output signal indicative of a failure of at least one of the input shaft and the output shaft based on a comparison of the input signal and the positional configuration; a moveable member coupled to both the output shaft and the input shaft and spaced apart from both the actuator assembly and the position sensor, the moveable member being configured to alter the positional configuration of the input shaft and being configured to be actuated by the output shaft.