Invention Grant
- Patent Title: Variable capacity oil pump
- Patent Title (中): 变容量油泵
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Application No.: US13416581Application Date: 2012-03-09
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Publication No.: US08827660B2Publication Date: 2014-09-09
- Inventor: Poul Spaerhage Frokjaer , Jens Demtroder
- Applicant: Poul Spaerhage Frokjaer , Jens Demtroder
- Applicant Address: DK Aarhus N.
- Assignee: Vestas Wind Systems A/S
- Current Assignee: Vestas Wind Systems A/S
- Current Assignee Address: DK Aarhus N.
- Agency: Wood, Herron & Evans, LLP
- Priority: DKPA200400409 20040312
- Main IPC: F04B17/02
- IPC: F04B17/02 ; F04B49/20 ; F04B41/06
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.
Public/Granted literature
- US20120164001A1 VARIABLE CAPACITY OIL PUMP Public/Granted day:2012-06-28
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