CA2071548A1 - Hydraulic seal assembly - Google Patents

Hydraulic seal assembly

Info

Publication number
CA2071548A1
CA2071548A1 CA002071548A CA2071548A CA2071548A1 CA 2071548 A1 CA2071548 A1 CA 2071548A1 CA 002071548 A CA002071548 A CA 002071548A CA 2071548 A CA2071548 A CA 2071548A CA 2071548 A1 CA2071548 A1 CA 2071548A1
Authority
CA
Canada
Prior art keywords
fluid pressure
seal
stressing
sealing member
high fluid
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
CA002071548A
Other languages
French (fr)
Other versions
CA2071548C (en
Inventor
John Lee
Richard J. Vernon
Robert Janian
David A. Rossi
Stanley E. Charles
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.)
Coorstek Inc
Original Assignee
Individual
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
Priority to US07/275,896 priority Critical patent/US4917390A/en
Application filed by Individual filed Critical Individual
Priority to PCT/US1990/000731 priority patent/WO1991012447A1/en
Priority to KR1019920700522A priority patent/KR950003001B1/en
Priority to EP19900907709 priority patent/EP0512985A4/en
Priority to CA002071548A priority patent/CA2071548C/en
Priority to AU56609/90A priority patent/AU637798B2/en
Publication of CA2071548A1 publication Critical patent/CA2071548A1/en
Application granted granted Critical
Publication of CA2071548C publication Critical patent/CA2071548C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
    • F16J15/3208—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip provided with tension elements, e.g. elastic rings
    • 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
    • F16J15/56—Other sealings for reciprocating rods
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S277/00—Seal for a joint or juncture
    • Y10S277/908—Seal for use in rotating and reciprocating arrangement
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S277/00—Seal for a joint or juncture
    • Y10S277/909—Similar sealing structures for mounting on piston and about rod

Abstract

An improved seal (1) used in a hydraulic system having a piston rod (7) in a housing (5). The seal has stressing and sealing members (15, 17) with the latter being in point contact (23) with a piston rod un-der low fluid pressure and an additional point contact (29) with the piston rod under high fluid pressure. A shallow concavity (27) be-tween point contact (23) and the contact area entraps lubricating fluid when the seal is subjected to high fluid pressure. In another modifica-tion, the sealing member (17) has an incline (35) on the face in contact with stressing member (15). Thus, under high fluid pressure, stressing member (15) is forced up the incline (35), exerts increased pressure through the sealing member against the contact area and produces a high fluid pressure seal. In another embodiment, the sealing member (17) has a concave surface (25) to receive stressing member (15) such that it is centered, during low pressure operation, over a sealing con-tact area of the sealing member (17).
CA002071548A 1988-11-25 1990-02-08 Hydraulic seal assembly Expired - Fee Related CA2071548C (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US07/275,896 US4917390A (en) 1988-11-25 1988-11-25 Hydraulic seal assembly
PCT/US1990/000731 WO1991012447A1 (en) 1988-11-25 1990-02-08 Hydraulic seal assembly
KR1019920700522A KR950003001B1 (en) 1988-11-25 1990-02-08 Hydraulic seal assembly
EP19900907709 EP0512985A4 (en) 1988-11-25 1990-02-08 Hydraulic seal assembly
CA002071548A CA2071548C (en) 1988-11-25 1990-02-08 Hydraulic seal assembly
AU56609/90A AU637798B2 (en) 1988-11-25 1990-02-08 Hydraulic seal assembly

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US07/275,896 US4917390A (en) 1988-11-25 1988-11-25 Hydraulic seal assembly
PCT/US1990/000731 WO1991012447A1 (en) 1988-11-25 1990-02-08 Hydraulic seal assembly
CA002071548A CA2071548C (en) 1988-11-25 1990-02-08 Hydraulic seal assembly

Publications (2)

Publication Number Publication Date
CA2071548A1 true CA2071548A1 (en) 1991-08-09
CA2071548C CA2071548C (en) 2002-04-16

Family

ID=25675236

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002071548A Expired - Fee Related CA2071548C (en) 1988-11-25 1990-02-08 Hydraulic seal assembly

Country Status (6)

Country Link
US (1) US4917390A (en)
EP (1) EP0512985A4 (en)
KR (1) KR950003001B1 (en)
AU (1) AU637798B2 (en)
CA (1) CA2071548C (en)
WO (1) WO1991012447A1 (en)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11344120A (en) * 1998-05-29 1999-12-14 Tokico Ltd Seal device for rod
DE3828692A1 (en) * 1988-08-24 1990-03-15 Busak & Luyken Gmbh & Co ARRANGEMENT FOR SEALING A FLOATING ROD
US5007330A (en) * 1989-12-18 1991-04-16 Keystone International Holdings Corp. Rotary actuator and seal assembly for use therein
US5092610A (en) * 1990-11-15 1992-03-03 Itt Corporation High pressure piston seal
DE4140833C3 (en) * 1991-04-30 1995-03-16 Busak & Luyken Gmbh & Co Sealing arrangement
DE69112617T2 (en) * 1991-07-05 1996-04-18 Dixon Resine Spa Annular seal.
US5431415A (en) * 1993-11-15 1995-07-11 Greene Tweed Of Delaware, Inc. Seal with acute heel angle
US5630301A (en) * 1995-05-25 1997-05-20 Harris P/T, A Division Of Harris Steel Limited Anchorage assembly and method for post-tensioning in pre-stressed concrete structures
US5738358A (en) * 1996-01-02 1998-04-14 Kalsi Engineering, Inc. Extrusion resistant hydrodynamically lubricated multiple modulus rotary shaft seal
DE19800827C1 (en) * 1998-01-13 1999-07-29 Krupp Bilstein Gmbh poetry
US6767016B2 (en) 1998-05-20 2004-07-27 Jeffrey D. Gobeli Hydrodynamic rotary seal with opposed tapering seal lips
DE19921696A1 (en) * 1999-05-12 2000-11-23 Fietz Gmbh poetry
US7052020B2 (en) * 1999-05-19 2006-05-30 Kalsi Engineering, Inc. Hydrodynamic rotary seal
US6685194B2 (en) 1999-05-19 2004-02-03 Lannie Dietle Hydrodynamic rotary seal with varying slope
US6454272B1 (en) * 1999-06-08 2002-09-24 W. S. Shamban Europa A/S Sealing arrangement and a sealing member therefor
US6340161B1 (en) * 2000-02-16 2002-01-22 Macrotech Polyseal, Inc. Machinery seal
DE10145914A1 (en) * 2001-09-18 2003-05-08 Busak & Shamban Gmbh High pressure seal assembly
JP2003097723A (en) * 2001-09-25 2003-04-03 Mitsubishi Cable Ind Ltd Rotation shaft seal
US20040195780A1 (en) * 2003-04-03 2004-10-07 Jeff Baehl Back pumping seal assembly
DE202004007291U1 (en) * 2004-05-07 2005-09-15 Viega Gmbh & Co Kg Press connector assembly
DE202004007290U1 (en) * 2004-05-07 2005-09-15 Viega Gmbh & Co Kg sealing element
TWI430844B (en) * 2007-06-14 2014-03-21 Graco Minnesota Inc Longitudinal bulging seal
US20110012312A1 (en) * 2008-03-10 2011-01-20 Skf Polyseal Inc. Pressure regulating seal
JP5364727B2 (en) * 2009-08-31 2013-12-11 イーグル工業株式会社 Contamination seal device
CN102882845B (en) 2010-04-07 2016-07-13 苹果公司 In real time or quasi real time streaming
FR2996897B1 (en) * 2012-10-15 2015-05-01 Montabert Roger SEALING DEVICE FOR PERCUSSION HYDRAULIC APPARATUS, AND PERCUSSION HYDRAULIC APPARATUS COMPRISING SUCH A SEALING DEVICE
US9644742B2 (en) * 2013-03-15 2017-05-09 Fisher Controls International Llc Two-stage seal for a valve
US10202989B2 (en) * 2014-09-12 2019-02-12 Trelleborg Sealing Solutions Us, Inc. Rotary hydraulic actuator seal

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2841429A (en) * 1955-10-04 1958-07-01 Parker Hannifin Corp Sealing ring and joint
US3366392A (en) * 1964-09-16 1968-01-30 Budd Co Piston seal
US3663024A (en) * 1970-07-02 1972-05-16 Shamban & Co W S Sealing assembly
GB1438619A (en) * 1973-05-17 1976-06-09 Busatis Werke Kg Sealing ring structure
GB1475312A (en) * 1973-10-12 1977-06-01 Angus Co Ltd G Piston or like sealing or packing
US3909016A (en) * 1973-12-26 1975-09-30 Shamban & Co W S Seal assembly with pivotable slipper seal
DE2447583A1 (en) * 1974-10-05 1976-04-08 Zahnradfabrik Friedrichshafen Sealing ring for hydraulic mechanisms - semicircular section on flat base section, fits in rectangular cross section groove
DE3225906C2 (en) * 1982-07-10 1984-04-26 Busak + Luyken GmbH & Co, 7000 Stuttgart Seal for hydraulic pistons or piston rods
GB2177464B (en) * 1985-06-29 1988-06-02 Dowty Seals Ltd Sealing assembly
US4720113A (en) * 1985-11-14 1988-01-19 Seals Eastern Inc. Multilayer, multihardness seal

Also Published As

Publication number Publication date
AU5660990A (en) 1991-09-03
KR950003001B1 (en) 1995-03-29
CA2071548C (en) 2002-04-16
EP0512985A4 (en) 1993-07-07
US4917390A (en) 1990-04-17
EP0512985A1 (en) 1992-11-19
AU637798B2 (en) 1993-06-10
WO1991012447A1 (en) 1991-08-22

Similar Documents

Publication Publication Date Title
CA2071548A1 (en) Hydraulic seal assembly
EP0117873A4 (en) Dynamic pressure type of fluid bearing device.
US3716245A (en) Ring seal
EP2290268A3 (en) Sealing device
EP0125849A3 (en) Piston accumulator
CA2020602A1 (en) Bi-lobed sealing element and retainer
CA2259566A1 (en) Seals for hydraulic assemblies
CA2113878A1 (en) Shaft seal and bore assembly
KR970011390A (en) Hydraulic casing block with piston pump and method for securing or sealing piston pump
ES2006604A6 (en) Safety relief valve
US3606356A (en) High-pressure seal assembly
EP0156096A3 (en) Shaft seal
MY119275A (en) Scroll compressor
EP1296086A3 (en) Rotation shaft seal
US3105414A (en) High energy impactor apparatus
MY126841A (en) Electrically-driven closed scroll compressor having means for minimizing an overturning moment to an orbiting scroll
SE8200996L (en) LOADING OR OVERCENT VALVE
JPS57390A (en) Vane pump
SU1700301A1 (en) Bearing assembly
EP0380302A3 (en) High pressure piston sealing system
EP0391488A3 (en) Vented static seal assembly
SU1566148A1 (en) Method of working friction ring of face seal
EP0402332A3 (en) A magnetic sliding bearing
EP0396275A3 (en) Seals
KR950006169Y1 (en) Inclining control devices of axial piston motors

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed