G - Physics – 08 – B
Patent
G - Physics
08
B
340/124, 354/23,
G08B 21/00 (2006.01) F01D 17/02 (2006.01) F16K 37/00 (2006.01)
Patent
CA 1190622
ABSTRACT OF THE DISCLOSURE A diagnosis apparatus for making a diagnosis of a valve device in a turbine system comprises at least one of a pressure sensor for sensing hydraulic pressure in a hydraulic cylinder for driving a valve body of the valve device and a position sensor for sensing the displacement of the valve body, and a processing device for processing the output signal from the above- mentioned at lease one sensor. The processing device has an offset computing device which receives a signal representing the actual operating state of the valve device obtained on the basis of the output signal from the at least one sensor and a signal corresponding to a reference value obtained under the normal operating state of the valve device. The offset computing device is operable to compute the offset between the signals received thereto. A judging device is provided for judging as to whether or not there is a symptom of stick in the valve device, in accordance with the output signal from the offset computing device.
408887
Hamaoka Hidetoshi
Inoue Hidenori
Koga Tsuguaki
Kuwashima Hidesumi
Ohta Hiroshi
Hitachi Ltd.
Hitachi Engineering Co. Ltd.
Hitachi Service Engineering Co. Ltd.
Kirby Eades Gale Baker
LandOfFree
Method of and apparatus for making diagnosis of valve device... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of and apparatus for making diagnosis of valve device..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of and apparatus for making diagnosis of valve device... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1296597