GB1412310A - Sleeve seals and pistons - Google Patents

Sleeve seals and pistons

Info

Publication number
GB1412310A
GB1412310A GB842373A GB842373A GB1412310A GB 1412310 A GB1412310 A GB 1412310A GB 842373 A GB842373 A GB 842373A GB 842373 A GB842373 A GB 842373A GB 1412310 A GB1412310 A GB 1412310A
Authority
GB
United Kingdom
Prior art keywords
port
piston
feb
failure
lip
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.)
Expired
Application number
GB842373A
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB1412310A publication Critical patent/GB1412310A/en
Expired 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
    • F16J15/3232—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips
    • 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
    • F16J15/002—Sealings comprising at least two sealings in succession
    • F16J15/008—Sealings comprising at least two sealings in succession with provision to put out of action at least one sealing; One sealing sealing only on standstill; Emergency or servicing sealings

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Compressor (AREA)
  • Actuator (AREA)
  • Sealing With Elastic Sealing Lips (AREA)

Abstract

1412310 Piston packing ROBERT BOSCH GmbH 21 Feb 1973 [22 Feb 1972] 8423/73 Heading F2T A sealing means 11 for use in a compressed air cylinder 1 comprises a secondary sealing lip 14 and a port 16 leading to a cylinder space 9 at atmospheric pressure, the port 16 allowing limited leakage in the event of failure of a working sealing lip 13 in order to allow continued operation but give an indication of the failure. Air pressure acts on a piston 6 bearing the sealing means 11 and acts to increase the pressure of the lip 13 against the cylinder wall 12, compressed air normally being prevented from reaching as space 17 in front of the port 16. Alternatively, Fig. 3 (not shown), the port may take the form of a passage 16<SP>1</SP> in the piston 6.
GB842373A 1972-02-22 1973-02-21 Sleeve seals and pistons Expired GB1412310A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2208184A DE2208184A1 (en) 1972-02-22 1972-02-22 CUFF SEAL

Publications (1)

Publication Number Publication Date
GB1412310A true GB1412310A (en) 1975-11-05

Family

ID=5836667

Family Applications (1)

Application Number Title Priority Date Filing Date
GB842373A Expired GB1412310A (en) 1972-02-22 1973-02-21 Sleeve seals and pistons

Country Status (6)

Country Link
AT (1) AT320833B (en)
CH (1) CH541750A (en)
DE (1) DE2208184A1 (en)
FR (1) FR2173578A5 (en)
GB (1) GB1412310A (en)
SE (1) SE394905B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4344631A (en) * 1980-11-18 1982-08-17 Mechanical Technology Incorporated Pressure insensitive lip seal
CN109281953A (en) * 2017-07-19 2019-01-29 舍弗勒技术股份两合公司 One-piece sealing device for clutch master cylinder and clutch master cylinder

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19936462B4 (en) * 1999-08-03 2014-02-27 Carl Freudenberg Kg scraper

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4344631A (en) * 1980-11-18 1982-08-17 Mechanical Technology Incorporated Pressure insensitive lip seal
CN109281953A (en) * 2017-07-19 2019-01-29 舍弗勒技术股份两合公司 One-piece sealing device for clutch master cylinder and clutch master cylinder
CN109281953B (en) * 2017-07-19 2021-12-10 舍弗勒技术股份两合公司 One-piece sealing device for clutch master cylinder and clutch master cylinder

Also Published As

Publication number Publication date
FR2173578A5 (en) 1973-10-05
DE2208184A1 (en) 1973-09-06
SE394905B (en) 1977-07-18
AT320833B (en) 1975-02-25
CH541750A (en) 1973-09-15

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee