GB934311A - Pump sealing apparatus - Google Patents

Pump sealing apparatus

Info

Publication number
GB934311A
GB934311A GB45398/61A GB4539861A GB934311A GB 934311 A GB934311 A GB 934311A GB 45398/61 A GB45398/61 A GB 45398/61A GB 4539861 A GB4539861 A GB 4539861A GB 934311 A GB934311 A GB 934311A
Authority
GB
United Kingdom
Prior art keywords
diaphragm
shaft
impeller
pump
housing
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
GB45398/61A
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.)
Wilfley & Sons Inc A
AR Wilfley and Sons Inc
Original Assignee
Wilfley & Sons Inc A
AR Wilfley and Sons Inc
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 Wilfley & Sons Inc A, AR Wilfley and Sons Inc filed Critical Wilfley & Sons Inc A
Publication of GB934311A publication Critical patent/GB934311A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/10—Shaft sealings
    • F04D29/14—Shaft sealings operative only when pump is inoperative
    • F04D29/146—Shaft sealings operative only when pump is inoperative especially adapted for liquid pumps
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S277/00—Seal for a joint or juncture
    • Y10S277/927—Seal including fluid pressure differential feature

Abstract

934,311. Stuffing-box substitutes. A. R. WILFLEY & SONS Inc. Dec. 19, 1961 [Aug. 22, 1961], No. 45398/61. Class 122 (5). The shaft 25, Fig. 1, of a centrifugal pump is sealed by means comprising a flexible diaphragm 60 which is secured to the pump casing and sealingly engages a sleeve 62 on the shaft when it is stationary but which is withdrawn therefrom by vacuum created by expeller blades 38 on the pump impeller 35 when the shaft rotates above a given speed, the shaft then being sealed by the expeller blades 38. The diaphragm 60, which may be of rubber, plastic or metal, is clamped at its opposite edge portions 75 and 80 to the impeller housing and to a collector housing 26 respectively and has a portion 86 which, when the shaft is at rest, is urged by the liquid pressure in space A into contact with an insert 87 in the sleeve 62. The space B is vented to atmosphere through an outlet 70 in the housing 26. When the shaft rotates the pressure in space A is reduced due to the action of blades 38 and the sealing contact between 86 and 87 is broken. Flanges 42 and 45 on the impeller engage grooves in the housing to form labyrinth seals. Additional means, which may be electrical, mechanical, hydraulic or pneumatic, may be provided to assist the movement of the diaphragm 60. In the modification shown in Fig. 3, a plate 105 is connected to the diaphragm 100 and to the plunger 110 of a solenoid 108. When the switch for the motor driving the impeller shaft 25 is closed, after a delay by a timing device 115, the solenoid 108 is energized and the sealing means opened. When the motor is shut-off the solenoid is de-energized and, after a suitable time delay, the diaphragm is returned to its sealing position. In further modifications, the diaphragm is additionally moved into and out of sealing contact by magnetic means controlled by the pump motor. In still further modifications, the diaphragm is additionally moved out of sealing contact against spring action by a piston and cylinder device actuated by hydraulic or pneumatic pressure supplied from a pump driven from the impeller shaft. In the embodiment shown in Fig. 9, the diaphragm is in the form of a metallic bellows 270 which is connected to a rod 281 attached to a plate 290 which, when the shaft rotates, is moved axially against a spring 288 by centrifugal weights 292 to move the bellows out of contact with the insert 275. Specification 643,247 is referred to.
GB45398/61A 1961-08-22 1961-12-19 Pump sealing apparatus Expired GB934311A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US133167A US3137237A (en) 1961-08-22 1961-08-22 Pump sealing apparatus

Publications (1)

Publication Number Publication Date
GB934311A true GB934311A (en) 1963-08-14

Family

ID=22457320

Family Applications (1)

Application Number Title Priority Date Filing Date
GB45398/61A Expired GB934311A (en) 1961-08-22 1961-12-19 Pump sealing apparatus

Country Status (5)

Country Link
US (1) US3137237A (en)
DE (1) DE1528884B1 (en)
DK (1) DK117541B (en)
GB (1) GB934311A (en)
SE (1) SE311822B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0396275A2 (en) * 1989-05-03 1990-11-07 John Crane Uk Limited Seals

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK109243C (en) * 1965-09-13 1968-04-01 Smedegaard As Fluid circulation pump.
US3416455A (en) * 1967-03-15 1968-12-17 Worthington Corp Hydraulically actuated sealing means for rotating equipment
US3612549A (en) * 1970-05-25 1971-10-12 Melvin H Berkowitz Pressure seal
DE2315190B2 (en) * 1973-03-27 1978-04-20 Klein, Schanzlin & Becker Ag, 6710 Frankenthal Hydrostatic mechanical seal
FR2248733A5 (en) * 1973-10-19 1975-05-16 Snecma
FR2409406A1 (en) * 1977-11-22 1979-06-15 Air Liquide PROCESS FOR REALIZING THE INTERNAL SEALS AND SHAFT OUTLET OF A PUMP AND PUMP IMPLEMENTING THIS PROCESS
FR2414647A2 (en) * 1978-01-12 1979-08-10 Hispano Suiza Sa MAGNETIC CONTROLLED SHUTTER FOR HARMFUL FLUID COMPRESSOR
US4385768A (en) * 1979-07-19 1983-05-31 Rotoflow Corporation, Inc. Shaft mounting device and method
FR2528127A1 (en) * 1982-06-04 1983-12-09 Creusot Loire HIGH-SPEED INTEGRATED ELECTRIC CENTRIFUGAL MOTORCYMO COMPRESSOR
US4688990A (en) * 1983-08-30 1987-08-25 Borg-Warner Corporation Pump construction
GB2181186B (en) * 1985-09-30 1988-10-05 Siemens Ag Blower for producing a continuous gas flow
CA1331389C (en) * 1985-12-20 1994-08-09 John A. Hilaris Single component seal
US4915579A (en) * 1988-08-15 1990-04-10 A. R. Wilfley & Sons, Inc. Pump sealing apparatus
US4936744A (en) * 1989-07-25 1990-06-26 Goulds Pumps, Incorporated Centrifugal pump
US5114310A (en) * 1990-09-07 1992-05-19 A. Ahlstrom Corporation Centrifugal pump with sealing means
US5102308A (en) * 1990-09-14 1992-04-07 Thomas Bordelon Axial flow pump
US5071316A (en) * 1991-02-11 1991-12-10 General Motors Corporation Combination coolant pump drip collection, belt tensioner
US5261786A (en) * 1991-03-05 1993-11-16 A. R. Wilfley & Sons, Inc. Actuator mechanism for pump sealing apparatus
US5427500A (en) * 1994-03-15 1995-06-27 The Weir Group Plc Slurry pump seal system
US5492340A (en) * 1994-05-20 1996-02-20 General Motors Corporation Floating disk seal assembly
US5667356A (en) * 1996-05-06 1997-09-16 A. R. Wilfley & Sons, Inc. Acid/slurry governor seal assembly for centrifugal pumps
US6224322B1 (en) 1998-11-16 2001-05-01 A. R. Wilfley & Sons, Inc. Seal assembly for centrifugal pumps with barrier ring
US6010318A (en) * 1999-06-23 2000-01-04 Li; Wen-Sheng Electric fan with lubricating oil leakage preventive arrangement
JP3955224B2 (en) 2002-03-15 2007-08-08 株式会社ワールドケミカル Liquid pump
US20070164516A1 (en) * 2006-01-17 2007-07-19 Johnson Crushers International Seal assembly for vibrating screen
US7857320B1 (en) * 2009-06-03 2010-12-28 Chang Ming S Bearing isolator seal with floating ring
US11428231B2 (en) * 2012-07-10 2022-08-30 Borgwarner Inc. Exhaust-gas turbocharger
CN107882768B (en) * 2017-10-27 2019-05-31 江苏大学 A kind of unsteady flow sealing control method and its device
US10746338B2 (en) * 2018-08-31 2020-08-18 United Technologies Corporation Conduit boot with bushing

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1085326A (en) * 1912-09-19 1914-01-27 Gen Electric Shaft-packing.
GB500853A (en) * 1937-07-26 1939-02-16 Warman Charles Harold Improvements in centrifugal pumps
DE719353C (en) * 1940-03-31 1942-04-04 Wilhelm Beck Dipl Ing Shaft gap seal for glandless centrifugal pumps
US2620207A (en) * 1949-07-19 1952-12-02 Wilfley & Sons Inc A Glandless seal for centrifugal pumps
US2698584A (en) * 1949-08-13 1955-01-04 Stelzer William Centrifugal pump
US2660487A (en) * 1951-05-31 1953-11-24 A R Wilfiey And Sons Inc Centrifugal pump bearing seal
DE964009C (en) * 1954-07-31 1957-05-16 Licentia Gmbh Removable seal
NL201374A (en) * 1954-10-21
DE1037858B (en) * 1955-10-06 1958-08-28 Klaus Maschinen Und Appbau F Shaft gap sealing for centrifugal pumps
DE1753848U (en) * 1957-08-08 1957-10-10 Henschel & Sohn Gmbh LIQUID SEAL FOR CIRCULATING SHAFT.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0396275A2 (en) * 1989-05-03 1990-11-07 John Crane Uk Limited Seals
EP0396275A3 (en) * 1989-05-03 1991-07-17 John Crane Uk Limited Seals

Also Published As

Publication number Publication date
DE1528884B1 (en) 1971-07-15
SE311822B (en) 1969-06-23
US3137237A (en) 1964-06-16
DK117541B (en) 1970-05-04

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