Variable capacity oil pump
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United States of America Patent
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Sep 9, 2014
Issued Date -
N/A
app pub date -
Mar 9, 2012
filing date -
Mar 12, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
The invention relates to a wind turbine being provided with a fluid displacement means for ensuring a certain increased pumping capacity at a certain reduced rotational speed of the main shaft of the rotor and thus of a drive shaft from a gear box of the wind turbine. The invention also relates to a wind turbine being provided with fluid displacement means for ensuring a certain increased pumping capacity at a certain increased rotational speed of the main shaft of the rotor and thus of a drive shaft from a gear box of the wind turbine. The means may be mechanical, hydraulic, pneumatic or electrical. Additionally, the invention relates to a method for operating a wind turbine being provided with such fluid displacement means.
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