ES433874A1 - Shaft sealing arrangement - Google Patents

Shaft sealing arrangement

Info

Publication number
ES433874A1
ES433874A1 ES433874A ES433874A ES433874A1 ES 433874 A1 ES433874 A1 ES 433874A1 ES 433874 A ES433874 A ES 433874A ES 433874 A ES433874 A ES 433874A ES 433874 A1 ES433874 A1 ES 433874A1
Authority
ES
Spain
Prior art keywords
sealing
shaft
housing
radial
faces
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
ES433874A
Other languages
Spanish (es)
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.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of ES433874A1 publication Critical patent/ES433874A1/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
    • 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
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/226—Shaping or arrangements of the sealing
    • F16K1/2268—Sealing means for the axis of rotation

Landscapes

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

Abstract

Rotating shaft sealing device that extends through a hole formed in a housing and is exposed to great forces that give rise to bending of said shaft, said sealing device including two friction joints between the rotating shaft and the housing defining a sealing chamber to which a sealing fluid is supplied which is maintained at a sufficiently high pressure to ensure only the passage of said sealing fluid through said friction joints, characterized in that said friction joints 12 they consist of a sealing ring 34 which can rotate with said shaft 18 and which has radial sealing faces on its opposite sides and axially movable sealing elements 48, 50, hermetic with respect to the housing 14 and which have sealing faces opposite in contact with the opposite radial sealing faces of said sealing ring ueity 34, said sealing system allowing large radial deflections of said shaft 18 without producing large axial movements of said axially mobile sealing elements, 48, 50. (Machine-translation by Google Translate, not legally binding)
ES433874A 1974-01-17 1975-01-16 Shaft sealing arrangement Expired ES433874A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US43432274A 1974-01-17 1974-01-17

Publications (1)

Publication Number Publication Date
ES433874A1 true ES433874A1 (en) 1976-11-16

Family

ID=23723759

Family Applications (1)

Application Number Title Priority Date Filing Date
ES433874A Expired ES433874A1 (en) 1974-01-17 1975-01-16 Shaft sealing arrangement

Country Status (7)

Country Link
JP (1) JPS549670B2 (en)
BE (1) BE824457A (en)
CA (1) CA1007259A (en)
ES (1) ES433874A1 (en)
FR (1) FR2258575B1 (en)
GB (1) GB1461231A (en)
IT (1) IT1028395B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4022424A (en) * 1975-09-29 1977-05-10 General Electric Company Shaft bearing and seals for butterfly valves
JP5851920B2 (en) * 2012-04-16 2016-02-03 三菱日立パワーシステムズ株式会社 Valve and plant equipped with the same
CN104455445A (en) * 2014-12-05 2015-03-25 苏州福润机械有限公司 Metal bellow movable seal assembly for valve
CN105972312B (en) * 2016-07-12 2018-10-16 江苏亿阀股份有限公司 Nuclear power steam cut-out control butterfly valve

Also Published As

Publication number Publication date
IT1028395B (en) 1979-01-30
JPS549670B2 (en) 1979-04-26
FR2258575A1 (en) 1975-08-18
BE824457A (en) 1975-07-16
CA1007259A (en) 1977-03-22
JPS50101756A (en) 1975-08-12
GB1461231A (en) 1977-01-13
FR2258575B1 (en) 1981-10-09

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