DUAL TEMPERATURE OIL CONTROL SYSTEM AND METHOD FOR A WIND TURBINE GEARBOX
First Claim
1. A system for supplying oil at different temperatures to different locations within a wind turbine gearbox, comprising:
- a common oil sump;
a supply pump disposed to draw oil from said sump and deliver the oil to said different gearbox locations via a common header;
said different gear box locations divided into at least two groups, wherein each of said groups receives inlet oil at a respective inlet oil temperature (T1 and T2);
a first temperature control device disposed between said common header and said first group;
a second temperature control device disposed between said common header and said second group; and
wherein said first and second temperature control devices are configured to independently control the inlet oil temperature to said respective groups within said wind turbine gearbox.
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Accused Products
Abstract
A system and method are provided for supplying oil at different temperatures to different locations within a wind turbine gearbox, wherein oil is pumped from a common oil sump to the different locations via a common header. The different gear box locations are divided into at least two groups, wherein each of said groups receives inlet oil at a respective inlet oil temperature. A first temperature control device is disposed between the common header and the first group, and a second temperature control device is disposed between the common header and the second group of gearbox locations.
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Citations
16 Claims
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1. A system for supplying oil at different temperatures to different locations within a wind turbine gearbox, comprising:
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a common oil sump; a supply pump disposed to draw oil from said sump and deliver the oil to said different gearbox locations via a common header; said different gear box locations divided into at least two groups, wherein each of said groups receives inlet oil at a respective inlet oil temperature (T1 and T2); a first temperature control device disposed between said common header and said first group; a second temperature control device disposed between said common header and said second group; and wherein said first and second temperature control devices are configured to independently control the inlet oil temperature to said respective groups within said wind turbine gearbox. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A control method for supplying oil at different temperatures to different locations within a wind turbine gearbox, comprising:
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supplying oil from a common header and common oil cooler to a plurality of different locations in the wind turbine gearbox; monitoring an inlet oil temperature-based parameter at the different locations; and independently controlling the temperature of the oil supplied to the different locations as a function of the monitored inlet oil temperature-based parameter by independently varying the flow of cooled oil from the common oil cooler to each of the different locations. - View Dependent Claims (13, 14, 15, 16)
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Specification