Vertical axis wind turbines
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 28, 1989
Grant Date -
N/A
app pub date -
Apr 10, 1987
filing date -
Apr 10, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Calculated Rating
|
US Family Size
|
Non-US Coverage
|
Patent Longevity
|
Forward Citations
|
Abstract
The invention relates to improvements in and relating to vertical axis wind turbines, particularly those of the 'eggbeater' type. It has been found possible, in spite of previous beliefs that it was not so, to provide energy exchange means between the blades and the rotor to thereby smooth out cyclic variations in transmitted torque. The energy exchange means may be, for example, the provision of hinges between the blades and the rotor so that the blade is deflected in operation to transmit torque to the rotor in dependence not only on its fixed geometry but also in dependence on the deflection.
First Claim
Other Claims data not available