Automatic locking device for hydraulic turbine wicket gates

Details Automatic locking device for hydraulic turbine wicket gates Automatic locking device for hydraulic turbine wicket gates

F - Mech Eng,Light,Heat,Weapons

03

B

138/32.03

F03B 3/18 (2006.01)

Patent

CA 1040058

AUTOMATIC LOCKING DEVICE FOR HYDRAULIC TURBINE WICKET GATES ABSTRACT OF THE DISCLOSURE A spring biased plunger located on the turbine head cover moves upward into engagement with the wicket gate lever arm when the gates are in a closed position. A pressure fluid operated servomotor is connected to the plunger and is activated to withdraw the plunger out of engagement with the wicket gate lever arm when it is desired to open the wicket gates. An opening in the plunger body aligns with an open- ing through the lever arm when the gates are in the full open position. A pin extending through both openings locks the gates in the open position.

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