F - Mech Eng,Light,Heat,Weapons – 03 – B
Patent
F - Mech Eng,Light,Heat,Weapons
03
B
138/32.02
F03B 3/02 (2006.01) F03B 3/18 (2006.01)
Patent
CA 1221893
- 1 - ABSTRACT OF THE DISCLOSURE A guide vane operating mechanism for a hydraulic machine including a main shaft carrying a runner and guide vanes for varying the angle of attack of water to the runner. A guide ring is rotatably arranged around the main shaft, with a guide vane driving mechanism being provided for a linkage between the main shaft and the guide vanes so as to drive the guide vanes between fully-open and fully- closed positions. At least one servomotor has a recipro- cating actuating rod, with a guide ring actuating mechanism for transmitting the driving power to the guide ring to cause a rotation of the latter. The guide ring actuating mechanism serves to connect the actuating rod to the guide ring in such a manner so as to permit the actuating rod and the guide ring to make a cranking motion relative to each other.
442919
Hitachi Ltd.
Kirby Eades Gale Baker
LandOfFree
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