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US 9,850,953 B2Granted
Sliding component
AssigneeEagle Industry Co., Ltd.
InventorYuichiro Tokunaga
Life of this patent
Estimating the term…
Abstract
A positive pressure generating mechanism comprising a positive pressure generating groove is provided to a high-pressure side of one of two sliding surfaces that slide relative to each other in a pair of sliding components, and a negative pressure generating mechanism comprising a negative pressure generating groove is provided to a low-pressure side. The positive pressure generating groove and negative pressure generating groove are communicated with a high-pressure fluid side and separated from a low-pressure fluid side by a seal surface.
Claims5
A sliding component comprising:
- a positive pressure generating mechanism including a Rayleigh step mechanism provided on a high-pressure fluid side of one of two sliding surfaces that slide relatively with each other in a pair of sliding components;
- a negative pressure generating mechanism including a reverse spiral groove provided on a low-pressure fluid side;
- and
- a pressure release groove provided between the Rayleigh step mechanism and the reverse spiral groove;
- wherein the Rayleigh step mechanism, the pressure release groove and the reverse spiral groove are communicated with the high-pressure fluid side and separated from the low-pressure fluid side by a seal surface.
2 more elements
Dependencies are inferred from the claim text.