Invention Grant
- Patent Title: Oil scraper ring for a piston rod
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Application No.: US16573685Application Date: 2019-09-17
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Publication No.: US11808360B2Publication Date: 2023-11-07
- Inventor: Marian Janko-Grasslober , Martin Lagler , Andreas Kaufmann
- Applicant: Hoerbiger Wien GmbH
- Applicant Address: AT Vienna
- Assignee: Hoerbiger Wien GmbH
- Current Assignee: Hoerbiger Wien GmbH
- Current Assignee Address: AT Vienna
- Agency: Dykema Gossett PLLC
- Main IPC: F16J9/20
- IPC: F16J9/20 ; F02B75/40

Abstract:
A scraper ring is provided with a plurality of sealing sections on the radially inner circumferential surface, each including a scraping edge, wherein the sealing sections are spaced axially apart from each other by inner circumferential grooves, with at least one recess provided on the circumference of the scraper ring which extends at least partially from a first axial ring end to a second axial ring end and extends at least partially in a direction different from the axial direction of the scraper ring. At least one drainage opening is provided on the outer circumferential surface of the scraper ring, which is connected to at least one inner circumferential groove for removing scraped oil from the inner circumferential grooves.
Public/Granted literature
- US20200096104A1 OIL SCRAPER RING FOR A PISTON ROD Public/Granted day:2020-03-26
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