GB682486A - Improvements in and relating to shaft seals - Google Patents

Improvements in and relating to shaft seals

Info

Publication number
GB682486A
GB682486A GB27819/50A GB2781950A GB682486A GB 682486 A GB682486 A GB 682486A GB 27819/50 A GB27819/50 A GB 27819/50A GB 2781950 A GB2781950 A GB 2781950A GB 682486 A GB682486 A GB 682486A
Authority
GB
United Kingdom
Prior art keywords
ring
shaft
grooves
chamber
groove
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
GB27819/50A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co Ltd
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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB682486A publication Critical patent/GB682486A/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
    • F16J15/44—Free-space packings
    • F16J15/441—Free-space packings with floating ring
    • 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
    • F16J15/40—Sealings between relatively-moving surfaces by means of fluid
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
    • H02K5/124—Sealing of shafts

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Sealing Devices (AREA)
  • Mechanical Sealing (AREA)
  • Motor Or Generator Frames (AREA)
  • Motor Or Generator Cooling System (AREA)

Abstract

682,486. Shaft seals. BRITISH THOMSON HOUSTON CO., Ltd. Nov. 14, 1950 [Nov. 14. 1949]. No. 27819/50. Class 122(v) A rotatable shaft seal comprises a single ring 19, Fig. 3, to which sealing liquid under pressure is supplied e.g., through a duct 26, a chamber 25, a passage 24, a chamber 18 and ring holes 28 to the shaft 13, the ring 19 having one portion 31 designed for relatively large sealing liquid flow between ring and shaft for cooling and having an axially disposed portion 30 allowing relatively small liquid flow to limit the escape of said liquid. The shaft 13 extends through the end wall of a hydrogen filled generator casing, and the ring 19 which is of metal is in arcuate halves held together by garter springs 20 which bear against a chamfered edge 22 and so force the inner side of the ring against the wall of the chamber 18. In operation sealing oil from the chamber 18 flows through the holes 28 to a groove 29, Fig. 4 and thence along inclined grooves 33 in the portion 31 to atmosphere. Oil flow in the opposite direction is limited by pump-back grooves 32 off-set from the groove 29. Axial loading on the ring 19 is relieved by radial vent grooves 35, 36 leading to circumferential grooves 37, 38 in the hydrogen side 23, and a plurality of radial grooves 39 leading to a circumferential groove 40 on the atmosphere side of the ring.
GB27819/50A 1949-11-14 1950-11-14 Improvements in and relating to shaft seals Expired GB682486A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US682486XA 1949-11-14 1949-11-14

Publications (1)

Publication Number Publication Date
GB682486A true GB682486A (en) 1952-11-12

Family

ID=22081345

Family Applications (2)

Application Number Title Priority Date Filing Date
GB27819/50A Expired GB682486A (en) 1949-11-14 1950-11-14 Improvements in and relating to shaft seals
GB1505/52A Expired GB699396A (en) 1949-11-14 1952-01-18 Improvements in and relating to high pressure shaft seals

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB1505/52A Expired GB699396A (en) 1949-11-14 1952-01-18 Improvements in and relating to high pressure shaft seals

Country Status (2)

Country Link
FR (2) FR1036580A (en)
GB (2) GB682486A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2990202A (en) * 1958-09-18 1961-06-27 United Aircraft Corp Labyrinth face seal plate
FR2468045A1 (en) * 1979-10-23 1981-04-30 Transamerica Delaval Inc ASSEMBLY OF GAS SEAL
WO2009060280A2 (en) * 2007-11-07 2009-05-14 Toyota Jidosha Kabushiki Kaisha Motor cooling structure

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2990202A (en) * 1958-09-18 1961-06-27 United Aircraft Corp Labyrinth face seal plate
FR2468045A1 (en) * 1979-10-23 1981-04-30 Transamerica Delaval Inc ASSEMBLY OF GAS SEAL
WO2009060280A2 (en) * 2007-11-07 2009-05-14 Toyota Jidosha Kabushiki Kaisha Motor cooling structure
WO2009060280A3 (en) * 2007-11-07 2009-11-26 Toyota Jidosha Kabushiki Kaisha Motor cooling structure
US8129875B2 (en) 2007-11-07 2012-03-06 Toyota Jidosha Kabushiki Kaisha Motor cooling structure

Also Published As

Publication number Publication date
FR62387E (en) 1955-06-14
GB699396A (en) 1953-11-04
FR1036580A (en) 1953-09-09

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