Rocker Arm Shaft with Improved Abrasion Resistance and Rocker Arm Shaft/Bush Assembly Comprising Same
AssigneeDoosan Infracore Co., Ltd.
InventorsSung Gi Kim, Seok Ju Oh
Life of this patent
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Abstract
The present disclosure relates to a rocker arm shaft and a rocker arm shaft/bush assembly including a rocker arm shaft, and a rocker arm bush which encloses the rocker arm shaft, in which the rocker arm shaft has a surface on which minutely processed concave-convex portions are formed, thereby achieving excellent lubricative characteristics and as a result having excellent abrasion resistance.
Claims12
A rocker arm shaft which is accommodated in a rocker arm bush and configured to be relatively moved with respect to the rocker arm bush using lubricant so as to allow a rocker arm to reciprocate, the rocker arm shaft comprising:
- a plurality of concave-convex portions having groove shapes formed on at least a portion of an outer surface of the rocker arm shaft, which is in contact with the rocker arm bush.
Dependencies are inferred from the claim text.