초록 ▼

The shaft of a wind driven propeller is coupled to the rotor shaft of an electrical generator through an over-running centrifugal clutch and a speed changer mechanism. When the wind attains a certain velocity, a propeller shaft speed responsive device closes a switch that connects the output termina

The shaft of a wind driven propeller is coupled to the rotor shaft of an electrical generator through an over-running centrifugal clutch and a speed changer mechanism. When the wind attains a certain velocity, a propeller shaft speed responsive device closes a switch that connects the output terminals of the generator to an energized electric distribution system so the generator runs as a motor long enough to accelerate up to rated speed and concurrently get the speed changer mechanism up to speed. The clutch engages the propeller shaft to the speed changers at this time and the generator begins to supply supplemental power to the system. Because all rotating parts are brought up to matching speeds together, the inertia shock that would result from connecting the propeller to a speed changer and generator that are at a standstill is avoided. When wind velocity drops, the generator runs as a motor for a moment and causes the over-running clutch to disengage.

대표청구항 ▼

An electrical generating system comprising: generator means operative alternately in a power generating mode at a predetermined high speed and a motor mode at a predetermined lower speed and having a rotor shaft, switch control means and a circuit including a switch controlled by said control means

An electrical generating system comprising: generator means operative alternately in a power generating mode at a predetermined high speed and a motor mode at a predetermined lower speed and having a rotor shaft, switch control means and a circuit including a switch controlled by said control means to selectively connect and disconnect said generator means to and from an electric power system, speed changer means having first and second shafts said second shaft being coupled to said generator rotor shaft and said first shaft coupled to a drive assembly output shaft, a drive assembly including an input and an output shaft and clutch means engagable at said predetermined high speed, said output shaft being coupled to said speed changer first shaft when said clutch is engaged at said predetermined high speed, said switch control means responding to said input shaft attaining said predetermined low speed by closing said switch to thereby connect said generator means to said electric power system for drawing power from said system to operate said generator means in said motor mode for driving said speed changing means up to a speed corresponding to said predetermined high speed prior to engagement of said clutch means and said generator means converting to said power generating mode when said generator means attains said predetermined high speed and said clutch means is engaged with input power from said drive assembly.