Sliding member
AssigneeEagle Industry Co., Ltd.
InventorYuichiro Tokunaga
Life of this patent
Estimating the term…
Abstract
A pair of sliding members sliding relative to each other at sliding faces is configured such that at least one of the sliding faces includes a negative pressure generation mechanism separated from a leakage side by a leakage-side land portion and a land portion arranged in the negative pressure generation mechanism. In the compact sliding members, sliding torque can be reduced and a sealing function can be maintained.
Claims17
A pair of sliding members sliding relative to each other at sliding faces, wherein at least one of the sliding faces includes a negative pressure generation mechanism and a land portion arranged in the negative pressure generation mechanism, wherein
- the negative pressure generation mechanism includes an opening end portion which is open to a sealed fluid side, a closed end portion which is closed with respect to the sealed fluid side and a leakage side, and a negative pressure generation groove portion which is disposed between the opening end portion and the closed end portion to be separated from the sealed fluid side and the leakage side by an outer diameter side land portion and an inner diameter side land portion,
- the land portion arranged in the negative pressure generation mechanism is an island-shaped land portion surrounded by the negative pressure generation groove portion and separated from the outer dimeter side land portion and the inner diameter side land portion.
Dependencies are inferred from the claim text.