Method of arranging the lubrication of a controllable pitch propeller arrangement of a marine vessel and a lubrication arrangement therefor
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United States of America Patent
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Sep 1, 2020
Grant Date -
Feb 1, 2018
app pub date -
Mar 5, 2015
filing date -
Mar 5, 2015
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Abstract
The present disclosure discusses a method of and an arrangement for the lubrication of a controllable pitch propeller of a marine vessel. The lubrication is based on continuous lubricant circulation from the hydraulic powerpack to the hub and back to the oil tank, when the marine vessel is sailing ahead with propeller blades locked in a desired position. The lubrication is performed by maintaining, at least when the propeller blades are locked in a desired position, a pressure difference between the astern oil chamber and the lubricant chamber for circulating lubricant from the astern oil chamber via the lubricant chamber to the oil tank.
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