Fluid reaction surfaces (i.e. – impellers) – Articulated – resiliently mounted or self-shifting impeller... – Including movement limit stop or damping means
Patent
1987-04-10
1989-02-28
Bennet, Henry A.
Fluid reaction surfaces (i.e., impellers)
Articulated, resiliently mounted or self-shifting impeller...
Including movement limit stop or damping means
416119, F03D 704
Patent
active
048080748
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.
REFERENCES:
patent: 1835018 (1931-12-01), Darrieus
patent: 2554774 (1951-05-01), Buivid
patent: 2604953 (1952-07-01), Campbell
patent: 3638885 (1972-02-01), Reed
patent: 4378198 (1983-03-01), Pettersson
patent: 4431375 (1984-02-01), Carter
Bennet Henry A.
Canadian Patents and Development Limited-Societe Canadienne Des
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