Sliding component
AssigneeEagle Industry Co., Ltd.
InventorTadatsugu Imura
Life of this patent
Estimating the term…
Abstract
Provided is a sliding component capable of reliably generating a negative pressure in a shallow groove regardless of a relative rotation speed of the other sliding component. In an annular sliding component disposed at a relatively rotating position of a rotating machine and sliding relative to the other sliding component, a sliding surface of the sliding component is provided with a shallow groove extending in a circumferential direction and generating a negative pressure and a deep groove collecting a sealing target fluid in the shallow groove and deeper than the shallow groove. The shallow groove has a terminating end portion in which a cross-sectional are of a flow path thereof becomes narrow toward the deep groove.
Claims18
A sliding component formed in an annular shape and disposed at a relatively rotating position of a rotating machine and sliding relative to other sliding component, the sliding component comprising:
- a sliding surface of the sliding component provided with a shallow groove extending in a circumferential direction and generating a negative pressure and a deep groove collecting a sealing target fluid in the shallow groove and deeper than the shallow groove, and
- wherein the shallow groove has a terminating end portion in which a cross-sectional area of a flow path thereof becomes narrow toward the deep groove, and
- the terminating end portion of the shallow groove becomes gradually shallow toward the deep groove.
A sliding component formed in an annular shape and disposed at a relatively rotating position of a rotating machine and sliding relative to other sliding component, the sliding component comprising:
- a sliding surface of the sliding component provided with a shallow groove extending in a circumferential direction and generating a negative pressure and a deep groove collecting a sealing target fluid in the shallow groove and deeper than the shallow groove, and
- wherein the shallow groove has a terminating end portion in which a cross-sectional area of a flow path thereof becomes narrow toward the deep groove,
- the terminal end portion of the shallow groove is continuous to the deep groove in the circumferential direction, and
- the shallow groove further has a starting end portion continuous to the deep groove in the circumferential direction.
A sliding component formed in an annular shape and disposed at a relatively rotating position of a rotating machine and sliding relative to other sliding component, the sliding component comprising:
- a sliding surface of the sliding component provided with a shallow groove extending in a circumferential direction and generating a negative pressure and a deep groove collecting a sealing target fluid in the shallow groove and deeper than the shallow groove, and
- wherein the shallow groove has a terminating end portion in which a cross-sectional area of a flow path thereof becomes narrow toward the deep groove, and
- the terminating end portion of the shallow groove becomes gradually narrow in radial width toward the deep groove.
Dependencies are inferred from the claim text.