GB664820A - Improvements in or relating to seals for preventing the passage of fluid between relatively rotatable parts - Google Patents

Improvements in or relating to seals for preventing the passage of fluid between relatively rotatable parts

Info

Publication number
GB664820A
GB664820A GB208448A GB208448A GB664820A GB 664820 A GB664820 A GB 664820A GB 208448 A GB208448 A GB 208448A GB 208448 A GB208448 A GB 208448A GB 664820 A GB664820 A GB 664820A
Authority
GB
United Kingdom
Prior art keywords
contact
diaphragm
wall
seal
fluid
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
GB208448A
Inventor
Ulrich Max Willi Barske
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.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
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 National Research Development Corp UK filed Critical National Research Development Corp UK
Priority to GB208448A priority Critical patent/GB664820A/en
Publication of GB664820A publication Critical patent/GB664820A/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
    • F16J15/54—Other sealings for rotating shafts

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sealing With Elastic Sealing Lips (AREA)
  • Mechanical Sealing (AREA)

Abstract

664,820. Stuffing-box substitutes. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Feb. 9, 1949 [Jan. 23, 1948], No. 2084/48. Class 122(v) In a combined contact and centrifugal pressure fluid seal in which fluid under the influence of centrifugal force builds up in an annular chamber to form a seal and bears upon one of two co-acting contact seal elements or upon a member carrying said element, to tend to separate the elements, one of the elements is carried by or integral with a part of the wall of the annular chamber which is flexible and does not rotate. An impeller carrying blades 3 and having a hub 7 forming one contact seal element, rotates in an inwardly open channel formed by a recess 4 and a,double diaphragm wall, A rubber apertured diaphragm 5, the inner periphery.of which forms the other contact seal element, backed by a spring disc 6 comprises the double diaphragm wall. Under static or low speed conditions. shown in the upper part of the Figure, the spring 6 presses the diaphragm 5 into sealing contact with the hub 7 Upon rotation of the impeller, as shown in the lower part of the Figure, fluid in the recess 4 is flung outwardly to form a fluid seal and also to act on the diaphragm 5 to force it out of contact with the hub 7. In a modification, the diaphragm wall is in one piece and carries at its inner periphery a contact element which has an annular lip provided to trap sealing liquid flowing radially inwardly. A bellows forms the outer wall of the chamber in another embodiment and carries a plate having a contact element, to be spring pressed into sealing contact with an impeller. The chamber in a further embodiment is internally of "U" section and comprises two annular' channel portions both open radially inwardly and with one extending within the other. The outer portion which is rotary, carries one contact element and the inner, one wall of which is a diaphragm carrying the other contact element, is non-rotary. Passages may be provided to supply liquid to the impellers.
GB208448A 1948-01-23 1948-01-23 Improvements in or relating to seals for preventing the passage of fluid between relatively rotatable parts Expired GB664820A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB208448A GB664820A (en) 1948-01-23 1948-01-23 Improvements in or relating to seals for preventing the passage of fluid between relatively rotatable parts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB208448A GB664820A (en) 1948-01-23 1948-01-23 Improvements in or relating to seals for preventing the passage of fluid between relatively rotatable parts

Publications (1)

Publication Number Publication Date
GB664820A true GB664820A (en) 1952-01-16

Family

ID=9733302

Family Applications (1)

Application Number Title Priority Date Filing Date
GB208448A Expired GB664820A (en) 1948-01-23 1948-01-23 Improvements in or relating to seals for preventing the passage of fluid between relatively rotatable parts

Country Status (1)

Country Link
GB (1) GB664820A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2738208A (en) * 1952-03-17 1956-03-13 Francis A Utecht Jr Seal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2738208A (en) * 1952-03-17 1956-03-13 Francis A Utecht Jr Seal

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