Replenishment pockets on piston rings for the prevention of microwelding
AssigneeJE Pistons, Inc.
InventorsHarold McCormick, Shawn O'Connell
Life of this patent
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AssigneeJE Pistons, Inc.
InventorsHarold McCormick, Shawn O'Connell
Estimating the term…
A method is provided for replenishing lubricant to a piston ring groove to prevent microwelding between a piston and a piston ring from an engine. The method includes forming a plurality replenishment pockets on at least one surface of the ring; and disposing a lubricant (such as a dry-film) on the at least one side of the ring so that the plurality of replenishment pockets are substantially filled with lubricant and such that a layer of lubricant is applied to the at least one surface of the ring. During operation of the engine, the lubricant disposed in the plurality of replenishment pockets migrates onto the at least one surface of the ring and is deposited thereto to inhibit microwelding between the at least one surface of the ring and at least one of the upper and lower groove surfaces of the respective piston ring groove. The lubricant is preferred to be a dry-film lubricant.
A method for replenishing lubricant to a piston ring groove having an upper groove surface and lower groove surface to prevent microwelding between a piston and at least one respective piston ring of an engine, wherein the ring has an upper and lower surface, the method comprising:
A piston ring adapted to inhibit microwelding to a respective piston, the ring comprising:
Dependencies are inferred from the claim text.