Failure mechanisms of induction motors in the valve actuators of motor operated valves are investigated. It is found that motors which contain cast magnesium rotors are susceptible to cracking and ...

You have likely heard of variable valve timing by one of the names manufacturers have for the system, such as VVT-i or VTEC.

We have developed a self-diagnostic monitoring system for an air operated valve system which produces arrow patterns according to the states of the system and makes a diagnosis whenever the system ...