FR2410771A1 - SEALING DEVICE BETWEEN PARTS ARRANGED CONCENTRICALLY AND MOVABLE AXIALLY RELATIVELY TO ANOTHER - Google Patents

SEALING DEVICE BETWEEN PARTS ARRANGED CONCENTRICALLY AND MOVABLE AXIALLY RELATIVELY TO ANOTHER

Info

Publication number
FR2410771A1
FR2410771A1 FR7834283A FR7834283A FR2410771A1 FR 2410771 A1 FR2410771 A1 FR 2410771A1 FR 7834283 A FR7834283 A FR 7834283A FR 7834283 A FR7834283 A FR 7834283A FR 2410771 A1 FR2410771 A1 FR 2410771A1
Authority
FR
France
Prior art keywords
inflatable body
duct
another
sealing device
arranged concentrically
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
FR7834283A
Other languages
French (fr)
Other versions
FR2410771B1 (en
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.)
Festo Maschinenfabrik Gottlieb Stoll Firma
Original Assignee
Festo Maschinenfabrik Gottlieb Stoll Firma
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 Festo Maschinenfabrik Gottlieb Stoll Firma filed Critical Festo Maschinenfabrik Gottlieb Stoll Firma
Publication of FR2410771A1 publication Critical patent/FR2410771A1/en
Application granted granted Critical
Publication of FR2410771B1 publication Critical patent/FR2410771B1/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
    • F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
    • F16J9/06—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction using separate springs or elastic elements expanding the rings; Springs therefor ; Expansion by wedging
    • F16J9/064—Rings with a flat annular side rail
    • 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
    • F16J15/46—Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings
    • 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
    • F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
    • F16J9/06—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction using separate springs or elastic elements expanding the rings; Springs therefor ; Expansion by wedging

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Architecture (AREA)
  • Fluid Mechanics (AREA)
  • Sealing Devices (AREA)
  • Actuator (AREA)

Abstract

The sealing arrangement has radially elastic rings (1) which are arranged in an annular groove in the piston, rest face-to-face in a bundle and are pressed resiliently in the radial direction against the inner wall of the working cylinder (12) by an inflatable body (3) of flexible elastic material acting as a spring element. The inflatable body (3) is fed with pressure medium via a duct (13, 14). The duct (13, 14) is connected to the pressure spaces of the working cylinder and, in the feed to the inflatable body (3), has an OR valve (15) which connects to the inflatable body (3) the duct section (13a, 14b) which opens into the pressure space which is at the higher pressure, opening the said duct section.
FR7834283A 1977-11-30 1978-11-29 SEALING DEVICE BETWEEN PARTS ARRANGED CONCENTRICALLY AND MOVABLE AXIALLY RELATIVELY TO ANOTHER Granted FR2410771A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2753336A DE2753336C3 (en) 1977-11-30 1977-11-30 Sealing arrangement for the mutual sealing of concentrically arranged and axially movable parts relative to one another

Publications (2)

Publication Number Publication Date
FR2410771A1 true FR2410771A1 (en) 1979-06-29
FR2410771B1 FR2410771B1 (en) 1983-06-17

Family

ID=6024961

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7834283A Granted FR2410771A1 (en) 1977-11-30 1978-11-29 SEALING DEVICE BETWEEN PARTS ARRANGED CONCENTRICALLY AND MOVABLE AXIALLY RELATIVELY TO ANOTHER

Country Status (5)

Country Link
CH (1) CH635177A5 (en)
DE (1) DE2753336C3 (en)
FR (1) FR2410771A1 (en)
IT (1) IT1100200B (en)
SE (1) SE432647B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3336209A1 (en) * 1983-10-05 1985-05-02 Concordia Fluidtechnik Gmbh, 7000 Stuttgart PISTON SEAL

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH673135A5 (en) * 1987-07-10 1990-02-15 Bbc Brown Boveri & Cie
DE3926591A1 (en) * 1989-08-11 1991-02-14 Alfill Getraenketechnik DEVICE FOR FILLING CONTAINERS
DE4002263C2 (en) * 1990-01-26 1995-04-06 Audi Ag Piston-cylinder unit
DE4138784A1 (en) * 1991-11-26 1993-05-27 Mtu Muenchen Gmbh DEVICE FOR SEALING A GAP
US6161834A (en) * 1997-08-01 2000-12-19 Imadco, Inc. Pressure energized seal
CN1815066B (en) * 2005-02-06 2013-01-09 张革 Energized dynamic seal ring for piston rod
DE202006011541U1 (en) * 2006-07-27 2007-12-06 Bdw Technologies Gmbh & Co. Kg casting plunger
CN109737204B (en) * 2019-03-07 2020-10-02 兰州理工大学 Combined piston sealing element
DE102019107235B4 (en) * 2019-03-21 2022-10-13 Engel Austria Gmbh Reflow unit for a molding machine and molding machine with such

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB115281A (en) * 1900-01-01
FR546639A (en) * 1922-02-01 1922-11-20 Sealed piston
DE921605C (en) * 1952-04-16 1954-12-23 Luebecker Kaeltemaschinen G M Seal for piston and piston rod
FR1104360A (en) * 1952-12-06 1955-11-18 Luebecker Kaltemaschinen G M B Sealing device with segments, in particular for a piston, and a piston fitted with said device
FR1310018A (en) * 1963-03-04
FR2239159A5 (en) * 1973-07-27 1975-02-21 Cefilac Inflatable shaft seal ring - forces non-turning disc against rotating seal to provide a seal
FR2342395A1 (en) * 1976-02-27 1977-09-23 Salzmann Willi Engine with tilting disc piston - which has sealing ring, providing sealing pressure which increases with engine speed

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB115281A (en) * 1900-01-01
FR1310018A (en) * 1963-03-04
FR546639A (en) * 1922-02-01 1922-11-20 Sealed piston
DE921605C (en) * 1952-04-16 1954-12-23 Luebecker Kaeltemaschinen G M Seal for piston and piston rod
FR1104360A (en) * 1952-12-06 1955-11-18 Luebecker Kaltemaschinen G M B Sealing device with segments, in particular for a piston, and a piston fitted with said device
FR2239159A5 (en) * 1973-07-27 1975-02-21 Cefilac Inflatable shaft seal ring - forces non-turning disc against rotating seal to provide a seal
FR2342395A1 (en) * 1976-02-27 1977-09-23 Salzmann Willi Engine with tilting disc piston - which has sealing ring, providing sealing pressure which increases with engine speed

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3336209A1 (en) * 1983-10-05 1985-05-02 Concordia Fluidtechnik Gmbh, 7000 Stuttgart PISTON SEAL
EP0140052A2 (en) * 1983-10-05 1985-05-08 Concordia Fluidtechnik GmbH Piston sealing
EP0140052B1 (en) * 1983-10-05 1988-12-07 Concordia Fluidtechnik GmbH Piston sealing

Also Published As

Publication number Publication date
SE7812284L (en) 1979-05-31
DE2753336C3 (en) 1981-02-26
IT7830158A0 (en) 1978-11-24
FR2410771B1 (en) 1983-06-17
IT1100200B (en) 1985-09-28
SE432647B (en) 1984-04-09
DE2753336B2 (en) 1980-06-12
CH635177A5 (en) 1983-03-15
DE2753336A1 (en) 1979-05-31

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Legal Events

Date Code Title Description
ST Notification of lapse