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US 8,985,081 B2Granted
Engine valve device
AssigneeDoosan Infracore Co., Ltd.
InventorYong Lae Kim
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to an engine valve device including: engine valves; valve guides configured to guide a reciprocating motion of the engine valves; and stem seals fitting on one end of each of the valve guides and circumferentially covering the engine valves, in which the engine valves have micro-machined oil ports on the surfaces surrounded by the valve guides or the stem seals.
Claims5
An engine valve device comprising:
- engine valves each having a column portion;
- valve guides surrounding the column portions of the engine valves and configured to guide a reciprocating motion of the engine valves;
- and
- stem seals fitting on one end each of the valve guides and circumferentially covering the engine valves,
- wherein the engine valves have micro-machined oil ports formed on surfaces of the column portions which are surrounded by the valve guides or the stem seals.
2 more elements
Dependencies are inferred from the claim text.