Lubrication system for a gear system providing emergency lubrication
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 7, 2015
Grant Date -
Aug 23, 2012
app pub date -
Oct 21, 2010
filing date -
Oct 23, 2009
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A lubrication system for a gear system for a wind turbine is disclosed. The lubrication system comprises a reservoir adapted to contain lubricant, first pump means arranged to supply lubricant from the reservoir to the gear system via a first fluid connection, and vacuum generating means arranged in fluid connection with the reservoir, thereby maintaining a total air pressure in the reservoir which is lower than an ambient pressure during normal operation. The lowered total air pressure in the reservoir draws lubricant from the gear system into the reservoir, thereby increasing the lubricant level in the reservoir and decreasing the lubricant level in the gear system, allowing the lubrication system to be operated in a ‘dry sump mode’. In the case of an emergency or during start-up the vacuum generating means is stopped, thereby increasing the total air pressure in the reservoir. This causes a decrease in the lubricant level in the reservoir and an increase in the lubricant level in the gear system, allowing the lubrication system to be operated in a ‘wet sump mode’.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully