GB1275901A - Improvements in seals for rotating machinery - Google Patents

Improvements in seals for rotating machinery

Info

Publication number
GB1275901A
GB1275901A GB2896468A GB2896468A GB1275901A GB 1275901 A GB1275901 A GB 1275901A GB 2896468 A GB2896468 A GB 2896468A GB 2896468 A GB2896468 A GB 2896468A GB 1275901 A GB1275901 A GB 1275901A
Authority
GB
United Kingdom
Prior art keywords
fingers
seal
june
seals
free ends
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
GB2896468A
Inventor
Alfred Cyril Lovesey
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.)
Rolls Royce PLC
Original Assignee
Rolls Royce PLC
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 Rolls Royce PLC filed Critical Rolls Royce PLC
Priority to GB2896468A priority Critical patent/GB1275901A/en
Priority to DE19691930530 priority patent/DE1930530A1/en
Priority to FR6920146A priority patent/FR2011947A1/fr
Publication of GB1275901A publication Critical patent/GB1275901A/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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/02—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B15/00—Special procedures for taking photographs; Apparatus therefor
    • G03B15/02—Illuminating scene
    • G03B15/03—Combinations of cameras with lighting apparatus; Flash units
    • G03B15/04—Combinations of cameras with non-electronic flash apparatus; Non-electronic flash units
    • G03B15/0452—Electrical ignition means connected to the shutter

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Sealing Devices (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

1275901 Seals ROLLS-ROYCE Ltd 18 June 1969 [18 June 1968] 28964/68 Heading F2B [Also in Division Fl] A seal, e.g. for use in a gas turbine engine comprises an annular array of elastically deflectable strip members 30 attached to a rotor or stator member, the fingers 30 having free ends in close proximity to the other said member. The fingers 30 may be mounted around a fixed ring 28 to co-operate sealingly with an annular axial extension 26 of a turbine disc (22), Fig. 2 (not shown). Leakage through the gaps 32 between the fingers 30 is prevented by a second series of fingers 34, offset from the first, and the free ends of the fingers 30, 34 may be coated with wear resistant material, e.g. tungsten carbide. Alternatively, Fig. 5 (not shown), the fingers 30, 34 may project axially of the stator to seal against an axially opposing rotor member. The fingers 30, 34, the rotary part 26, or both may include means defining annular peripheral flanges (not shown) to act as a labyrinth seal.
GB2896468A 1968-06-18 1968-06-18 Improvements in seals for rotating machinery Expired GB1275901A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB2896468A GB1275901A (en) 1968-06-18 1968-06-18 Improvements in seals for rotating machinery
DE19691930530 DE1930530A1 (en) 1968-06-18 1969-06-16 Labyrinth seal
FR6920146A FR2011947A1 (en) 1968-06-18 1969-06-17

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2896468A GB1275901A (en) 1968-06-18 1968-06-18 Improvements in seals for rotating machinery

Publications (1)

Publication Number Publication Date
GB1275901A true GB1275901A (en) 1972-06-01

Family

ID=10284053

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2896468A Expired GB1275901A (en) 1968-06-18 1968-06-18 Improvements in seals for rotating machinery

Country Status (3)

Country Link
DE (1) DE1930530A1 (en)
FR (1) FR2011947A1 (en)
GB (1) GB1275901A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4989886A (en) * 1988-12-30 1991-02-05 Textron Inc. Braided filamentary sealing element

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4989886A (en) * 1988-12-30 1991-02-05 Textron Inc. Braided filamentary sealing element

Also Published As

Publication number Publication date
FR2011947A1 (en) 1970-03-13
DE1930530A1 (en) 1970-01-22

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees