FR2456888A1 - U=section annular elastic shaft seal - uses intersecting conical faces to form inner leg knife edge including angled V=shaped grooves which lead oil to edge - Google Patents

U=section annular elastic shaft seal - uses intersecting conical faces to form inner leg knife edge including angled V=shaped grooves which lead oil to edge

Info

Publication number
FR2456888A1
FR2456888A1 FR7912163A FR7912163A FR2456888A1 FR 2456888 A1 FR2456888 A1 FR 2456888A1 FR 7912163 A FR7912163 A FR 7912163A FR 7912163 A FR7912163 A FR 7912163A FR 2456888 A1 FR2456888 A1 FR 2456888A1
Authority
FR
France
Prior art keywords
knife edge
shaft seal
inner leg
edge
shaped grooves
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7912163A
Other languages
French (fr)
Other versions
FR2456888B1 (en
Inventor
Michel Saxod
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Procal SA
Original Assignee
Procal SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Procal SA filed Critical Procal SA
Priority to FR7912163A priority Critical patent/FR2456888A1/en
Publication of FR2456888A1 publication Critical patent/FR2456888A1/en
Application granted granted Critical
Publication of FR2456888B1 publication Critical patent/FR2456888B1/fr
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/324—Arrangements for lubrication or cooling of the sealing itself
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3244—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with hydrodynamic pumping action

Abstract

The annular shaft seal may apply an elastic radial grip on a knife edge circumferential contact zone (5). The seal is made of one piece in supple elastic material with metal reinforcement (2) to the inside of the outer wall (1) and the radial return. Intersecting part conical surfaces (6,7) form and internally projecting knife edge (5) on the inner leg, with a segmental rear face groove (8) maintaining flexibility. One or both of the faces (6,7) include shallow 'V' section grooves (9) which intersect the knife edge (5) and are angled to the axis of revolution, serving to promote nominal oil flows onto the contact zone.
FR7912163A 1979-05-14 1979-05-14 U=section annular elastic shaft seal - uses intersecting conical faces to form inner leg knife edge including angled V=shaped grooves which lead oil to edge Granted FR2456888A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7912163A FR2456888A1 (en) 1979-05-14 1979-05-14 U=section annular elastic shaft seal - uses intersecting conical faces to form inner leg knife edge including angled V=shaped grooves which lead oil to edge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7912163A FR2456888A1 (en) 1979-05-14 1979-05-14 U=section annular elastic shaft seal - uses intersecting conical faces to form inner leg knife edge including angled V=shaped grooves which lead oil to edge

Publications (2)

Publication Number Publication Date
FR2456888A1 true FR2456888A1 (en) 1980-12-12
FR2456888B1 FR2456888B1 (en) 1982-02-19

Family

ID=9225419

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7912163A Granted FR2456888A1 (en) 1979-05-14 1979-05-14 U=section annular elastic shaft seal - uses intersecting conical faces to form inner leg knife edge including angled V=shaped grooves which lead oil to edge

Country Status (1)

Country Link
FR (1) FR2456888A1 (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0033963A2 (en) * 1980-02-07 1981-08-19 Firma Carl Freudenberg Radial shaft sealing ring
EP0140421A1 (en) * 1983-10-05 1985-05-08 SKF Industrial Trading & Development Co, B.V. Sealing ring for a rotary shaft
US4531747A (en) * 1982-11-01 1985-07-30 Nippon Oil Seal Industry Co., Ltd. Extended wear annular oil seal
US4667968A (en) * 1984-02-10 1987-05-26 Federal-Mogul Corporation Dual-lip grease-retaining and dirt-excluding shaft seal
EP0939257A3 (en) * 1998-02-27 2000-05-31 NOK Corporation Oil seal
JP2007285428A (en) * 2006-04-18 2007-11-01 Nok Corp Oil seal
JP2009127661A (en) * 2007-11-20 2009-06-11 Jtekt Corp Sealing device
JP2009127659A (en) * 2007-11-20 2009-06-11 Jtekt Corp Sealing device
EP2088353A1 (en) * 2008-02-08 2009-08-12 Carl Freudenberg KG Oil seal
EP2151612A1 (en) * 2007-04-11 2010-02-10 NOK Corporation Oil seal
WO2020110623A1 (en) * 2018-11-29 2020-06-04 Nok株式会社 Sealing device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3501155A (en) * 1967-05-22 1970-03-17 Gen Motors Corp Bi-directional seal

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3501155A (en) * 1967-05-22 1970-03-17 Gen Motors Corp Bi-directional seal

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0033963A2 (en) * 1980-02-07 1981-08-19 Firma Carl Freudenberg Radial shaft sealing ring
EP0033963A3 (en) * 1980-02-07 1981-09-02 Firma Carl Freudenberg Radial shaft sealing ring
US4531747A (en) * 1982-11-01 1985-07-30 Nippon Oil Seal Industry Co., Ltd. Extended wear annular oil seal
EP0140421A1 (en) * 1983-10-05 1985-05-08 SKF Industrial Trading & Development Co, B.V. Sealing ring for a rotary shaft
US4667968A (en) * 1984-02-10 1987-05-26 Federal-Mogul Corporation Dual-lip grease-retaining and dirt-excluding shaft seal
EP0939257A3 (en) * 1998-02-27 2000-05-31 NOK Corporation Oil seal
JP2007285428A (en) * 2006-04-18 2007-11-01 Nok Corp Oil seal
EP2151612A1 (en) * 2007-04-11 2010-02-10 NOK Corporation Oil seal
EP2151612A4 (en) * 2007-04-11 2014-08-20 Nok Corp Oil seal
JP2009127661A (en) * 2007-11-20 2009-06-11 Jtekt Corp Sealing device
JP2009127659A (en) * 2007-11-20 2009-06-11 Jtekt Corp Sealing device
EP2088353A1 (en) * 2008-02-08 2009-08-12 Carl Freudenberg KG Oil seal
JP2009185968A (en) * 2008-02-08 2009-08-20 Nok Corp Oil seal
WO2020110623A1 (en) * 2018-11-29 2020-06-04 Nok株式会社 Sealing device
US11920636B2 (en) 2018-11-29 2024-03-05 Nok Corporation Sealing device

Also Published As

Publication number Publication date
FR2456888B1 (en) 1982-02-19

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Legal Events

Date Code Title Description
ST Notification of lapse