Invention Grant
- Patent Title: Sliding component
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Application No.: US14400253Application Date: 2013-07-31
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Publication No.: US09958010B2Publication Date: 2018-05-01
- Inventor: Masatoshi Itadani
- Applicant: EAGLE INDUSTRY CO., LTD.
- Applicant Address: JP
- Assignee: EAGLE INDUSTRY CO., LTD.
- Current Assignee: EAGLE INDUSTRY CO., LTD.
- Current Assignee Address: JP
- Agency: Hayes Soloway P.C.
- Priority: JP2012-173493 20120804
- International Application: PCT/JP2013/070713 WO 20130731
- International Announcement: WO2014/024741 WO 20140213
- Main IPC: F16J15/34
- IPC: F16J15/34 ; F16C33/74 ; F16C17/02

Abstract:
A sliding component, which can seal and lubricate at the same time by reducing the amount of leakage of sealed fluid further while preventing torque increase and local wear, is characterized in that an extremely shallow step of circular shape is provided on a sealing face of one of a pair of sliding parts that slide against each other in such a way that the step is positioned on the low-pressure fluid side (atmosphere side) of this sealing face and also set lower than the sealing face, and that pumping grooves acting to push back toward the high-pressure fluid side (sealed fluid side) the fluid that tends to leak from the sealing face toward the low-pressure fluid side (atmosphere side) are provided on the surface of the extremely shallow step.
Public/Granted literature
- US20150139578A1 SLIDING COMPONENT Public/Granted day:2015-05-21
Information query
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