Speed control system for a windmill

Patent · Tue Jun 23 04:00:00 EDT 1981

OSTI ID:6184342

Kenney, C E

A speed control system for a windmill having blades which can be feathered for altering speed and with the blades under the control of a mechanism which includes a piston assembly and a fluid governor associated therewith. Spring means are used to feather the blades against the force of the piston assembly which is interconnected with the blades, and the speed of blade rotation actually creates the fluid pressure acting on the piston assembly and a governor is associated with the piston assembly for controlling the position of the piston and thus controlling the feathering of the blades, all according to the speed of rotation of the windmill blades. The windmill can be used for generating electric power, and fail-safe mechanisms are employed for protecting in the event of a windmill blade breakage.

• Assignee: IFI; EDB-81-129251
• Patent Number(s): US 4274807
• OSTI ID: 6184342
• Country of Publication: United States
• Language: English

Related Subjects

17 WIND ENERGY
170602* -- Wind Energy Engineering-- Turbine Design & Operation
CONTROL EQUIPMENT
DESIGN
ELECTRIC GENERATORS
EQUIPMENT
EQUIPMENT PROTECTION DEVICES
HYDRAULIC CONTROL DEVICES
MACHINE PARTS
MACHINERY
PISTONS
PUMPS
SHAFTS
SPEED REGULATORS
SPRINGS
TURBINE BLADES
TURBINES
TURBOMACHINERY
WIND TURBINES