| 摘要 |
PROBLEM TO BE SOLVED: To provide a lubricating oil staying preventive structure of an aircraft engine capable of improving soundness without making an oil reservoir even when a positional change is caused on the aircraft engine. SOLUTION: A tapered part 11 becoming larger in diameter from an end surface is formed toward a central part on an inside diameter part of a hollow rotation axis 6a positioned at an oil reservoir part where lubricating oil stays due to a positional change of an aircraft engine, and an oil discharge hole 12 passing through to the outside from the inside diameter part is formed on a large diameter side end part of this tapered part 11. When oil staying in the oil reservoir enters the tapered part 11 of the inside diameter of this hollow rotation axis 6a, centrifugal force works in accordance with rotation of the hollow rotation axis 6a, lubricating oil rises along the tapered part 11 by its component force, it can be discharged by centrifugal force from the oil discharge port 12 of the tapered part 11, and it is possible to prevent making of the oil reservoir. Consequently, it is possible to restrain rising of lubricating oil temperature and bearing temperature due to the positional change of the aircraft engine and to improve soundness against the positional change.
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