GB1335642A - Shaft seals - Google Patents

Shaft seals

Info

Publication number
GB1335642A
GB1335642A GB1335642DA GB1335642A GB 1335642 A GB1335642 A GB 1335642A GB 1335642D A GB1335642D A GB 1335642DA GB 1335642 A GB1335642 A GB 1335642A
Authority
GB
United Kingdom
Prior art keywords
ring
rotary
shaft
rings
casing
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
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.)
CADMAN BV
DAVIES J K
Original Assignee
CADMAN BV
DAVIES J K
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 CADMAN BV, DAVIES J K filed Critical CADMAN BV
Publication of GB1335642A publication Critical patent/GB1335642A/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
    • F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
    • F16J15/3464—Mounting of the seal
    • F16J15/348—Pre-assembled seals, e.g. cartridge seals
    • 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
    • F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
    • F16J15/36—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member connected by a diaphragm or bellow to the other member

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Sealing (AREA)

Abstract

1335642 Rotary shaft seals J K DAVIES and B V CADMAN 26 Feb 1972 8953/72 Heading F2B Sealing means for a rotary shaft 1, where it extends through a pump or other casing 2 comprises a primary face seal comprising rotary and non-rotary rings 8 and 9 sealingly secured to the shaft and the casing respectively and having abutting sealing faces 8a, 9a of the same or substantially the same hardness and a secondary face seal comprising rotary and non-rotary rings 15, 10 sealingly secured to the shaft and the casing respectively, one ring 15 having a relatively soft sealing face abutting a relatively hard sealing face of the other ring 10. The rings 8 and 9 are both of hardened steel and are pegged respectively to a flange 5a of a sleeve 5 secured to the shaft and to a carrier ring 10, also of hardened steel, slidably pegged to a support 13 fixed to a casing flange 4. The ring 10 is sealed to the flange 4 by a flexible bellows 11 which urges ring 9 against rings 8 and 15 and ring 10 against ring 15 and a further ring 16. The ring 15 is of fibre packing material and the ring 16, which is fixed to the sleeve 5 by a peg 17, is of carbon. The invention is particularly applicable to pumps for liquid carrying solid particles which, in use, are prevented by the primary seal from reaching the secondary seal.
GB1335642D 1972-02-26 1972-02-26 Shaft seals Expired GB1335642A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB895372 1972-02-26

Publications (1)

Publication Number Publication Date
GB1335642A true GB1335642A (en) 1973-10-31

Family

ID=9862512

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1335642D Expired GB1335642A (en) 1972-02-26 1972-02-26 Shaft seals

Country Status (1)

Country Link
GB (1) GB1335642A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3319040A1 (en) * 1983-05-26 1984-11-29 Howaldtswerke-Deutsche Werft Ag Hamburg Und Kiel, 2300 Kiel Rotating mechanical seal
WO1989002555A1 (en) * 1987-09-11 1989-03-23 Flexibox Limited A mechanical seal
GB2230307A (en) * 1987-09-11 1990-10-17 Flexibox Ltd A mechanical seal
AU620569B2 (en) * 1987-09-11 1992-02-20 Flexibox Limited A mechanical seal
CN104455452A (en) * 2014-12-07 2015-03-25 无锡高卓流体设备有限公司 Novel double end surface sealing device
WO2016135670A1 (en) * 2015-02-25 2016-09-01 Meccanotecnica Umbra S.P.A. Mechanical seal

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3319040A1 (en) * 1983-05-26 1984-11-29 Howaldtswerke-Deutsche Werft Ag Hamburg Und Kiel, 2300 Kiel Rotating mechanical seal
WO1989002555A1 (en) * 1987-09-11 1989-03-23 Flexibox Limited A mechanical seal
GB2230307A (en) * 1987-09-11 1990-10-17 Flexibox Ltd A mechanical seal
GB2230307B (en) * 1987-09-11 1991-03-13 Flexibox Ltd A mechanical seal
AU620569B2 (en) * 1987-09-11 1992-02-20 Flexibox Limited A mechanical seal
CN104455452A (en) * 2014-12-07 2015-03-25 无锡高卓流体设备有限公司 Novel double end surface sealing device
WO2016135670A1 (en) * 2015-02-25 2016-09-01 Meccanotecnica Umbra S.P.A. Mechanical seal

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Legal Events

Date Code Title Description
PS Patent sealed
PLE Entries relating assignments, transmissions, licences in the register of patents
PCNP Patent ceased through non-payment of renewal fee