Patent ID: 8747993
Filing Date: 2014-06-10
Classification: G04B,G04D,Y10T

Abstract:
1. A sliding component comprising: a multi-layer structure having at least three layers stacked together in a stacking direction, a sliding portion configured to undergo sliding contact with another component and being disposed on an outer peripheral surface of the multi-layer structure that is substantially parallel to the stacking direction, and at least one recess for retaining a lubricating oil that is supplied to the sliding portion during sliding contact between the sliding portion and the another component; wherein the at least three layers comprise a first metal layer, a second metal layer stacked on the first metal layer, and a third metal layer stacked on the second metal layer, the first and third metal layers having outer peripheral surfaces forming the outer peripheral surface of the multi-layer structure that is configured to undergo sliding contact with the another component, and the second metal layer having an outer peripheral surface extending inwardly from the outer peripheral surfaces of the first and third metal layers to provide the at least one recess that is not formed in any one of the first, second and third metal layers but is formed by a space bounded by surfaces of the first and third metal layers and the inwardly extending outer peripheral surface of the second metal layer; and wherein the second metal layer is formed of a material different from that of the first and third metal layers, the material of the second metal layer having a higher heat conductivity than the material of the first and third metal layers.