Shaft internal lubrication with rifling grooves
AssigneeHamilton Sundstrand Corporation
InventorsMatthew Allen Slayter, Richard A. Himmelmann
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Abstract
According to an aspect, a method of providing internal shaft lubrication includes drip feeding a lubricant to a feed tube within a central bore of a shaft body. The lubricant is urged along a lubrication flow path including at least one rifling groove on an inner wall of the shaft body formed by the central bore and a plurality of lubrication holes axially distributed along the shaft body that fluidically connects the inner wall with an outer wall of the shaft body. The lubricant is sprayed out of the lubrication holes responsive to rotation of the shaft body.
Claims7
A method of providing internal shaft lubrication, the method comprising:
- drip feeding a lubricant to a feed tube within a central bore of a shaft body;
- urging the lubricant along a lubrication flow path comprising at least one rifling groove on an inner wall of the shaft body formed by the central bore and a plurality of lubrication holes axially distributed along the shaft body that fluidically connects the inner wall with an outer wall of the shaft body;
- and
- spraying the lubricant out of the lubrication holes responsive to rotation of the shaft body.
Dependencies are inferred from the claim text.