GB1282915A - Improvements relating to mechanical seals - Google Patents

Improvements relating to mechanical seals

Info

Publication number
GB1282915A
GB1282915A GB40582/69A GB4058269A GB1282915A GB 1282915 A GB1282915 A GB 1282915A GB 40582/69 A GB40582/69 A GB 40582/69A GB 4058269 A GB4058269 A GB 4058269A GB 1282915 A GB1282915 A GB 1282915A
Authority
GB
United Kingdom
Prior art keywords
ring
screwthread
shaft
external
seal
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
GB40582/69A
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.)
FEODOR BURGMANN
FEODOR BURGMANN JR ASBEST und
Original Assignee
FEODOR BURGMANN
FEODOR BURGMANN JR ASBEST und
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 FEODOR BURGMANN, FEODOR BURGMANN JR ASBEST und filed Critical FEODOR BURGMANN
Publication of GB1282915A publication Critical patent/GB1282915A/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
    • F16J15/3404—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal
    • 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
    • Y10S277/93—Seal including heating or cooling feature

Abstract

1282915 End-face seals F BURGMANN [trading as FEODOR BURGMANN JNR ASBEST-UND PACKUNGSWERK] 14 Aug 1969 [17 March 1969] 40582/69 Heading F2B A mechanical seal for a nuclear reactor pump comprises a pump device formed by external and internal screwthreads 15, 17 for circulating a cooling, lubricating or sealing medium to the sliding face, the screwthread rotatable with the shaft being of opposite hand to that of the screwthread associated with the shaft housing. As shown, a stationary seal ring 8a is urged by springs 14a into engagement with a seal ring 7b rotatable with the shaft, the carrier 3b for the rotary ring being provided with the external screwthread 15. The medium is discharged through an outlet 19 and passes through a heat exchanger before returning to an inlet 18. The face of either of the seal rings may be provided with arcuate grooves which extend from one point on the circumference to another. In a second embodiment, Fig. 2 (not shown), the ring (8b) rotatable with the shaft is spring- loaded towards the stationary ring (7a), the load being modified by the axial thrust generated by the pumping action. In a third embodiment Fig. 3 (not shown), two mechanical seals are' provided in series, the rotary seal rings (8<SP>1</SP>b' 8<SP>11</SP>b) of which are urged along the shaft in opposite directions towards the stationary rings and are surrounded by a single sleeve (23) containing the external screwthread (15); in this embodiment, the pressure of the medium is increased by means of a gas-charged container (22) in the circuit. In a fourth embodiment, Fig. 4 (not shown), two mechanical seals are provided and the carrier for each rotary ring is provided with an external screwthread. In a fifth embodiment, Fig. 5 (not shown), the spring for urging the rotary seal ring into engagement also serves as the external screwthread.
GB40582/69A 1969-03-17 1969-08-14 Improvements relating to mechanical seals Expired GB1282915A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1913397A DE1913397B2 (en) 1969-03-17 1969-03-17 Mechanical seal with screw pump

Publications (1)

Publication Number Publication Date
GB1282915A true GB1282915A (en) 1972-07-26

Family

ID=5728344

Family Applications (1)

Application Number Title Priority Date Filing Date
GB40582/69A Expired GB1282915A (en) 1969-03-17 1969-08-14 Improvements relating to mechanical seals

Country Status (5)

Country Link
US (1) US3746350A (en)
CH (1) CH489732A (en)
DE (1) DE1913397B2 (en)
FR (1) FR2037367A5 (en)
GB (1) GB1282915A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2438522A (en) * 2006-05-26 2007-11-28 Dyna Drill Technologies Inc A hydrostatic mechanical seal with local pressurization of seal interface
CN104676004A (en) * 2015-02-13 2015-06-03 江苏科奥流体科技有限公司 Integral sealing device of hydraulic pump

Families Citing this family (63)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3963247A (en) * 1970-12-01 1976-06-15 Stamicarbon B.V. Shaft seal
DE2233381C3 (en) * 1972-07-07 1981-05-27 Feodor Burgmann Dichtungswerk Gmbh & Co, 8190 Wolfratshausen Cooled mechanical seal
US3811658A (en) * 1972-01-24 1974-05-21 H Heidrich Extruder for processing plastics and rubber
CH572174A5 (en) * 1972-06-09 1976-01-30 Burgmann Dichtungswerk Feodor
DE2228296C3 (en) * 1972-06-09 1982-12-02 Feodor Burgmann Dichtungswerk Gmbh & Co, 8190 Wolfratshausen Double acting cooled mechanical seal
US3884482A (en) * 1973-03-08 1975-05-20 Borg Warner Cooled seal cartridge
US3937477A (en) * 1973-12-26 1976-02-10 Borg-Warner Corporation Mechanical seal system
NL171617C (en) * 1974-03-01 1983-04-18 Burgmann Dichtungswerk Feodor SLIDING SEAL.
US3938811A (en) * 1974-10-11 1976-02-17 Kommanditbolaget United Stirling (Sweden) Ab & Co. Sealing means for stirling engine crankcases
US3999882A (en) * 1975-03-17 1976-12-28 Dresser Industries, Inc. Flushing and cooling system for shaft seals and pumps
US4084825A (en) * 1976-03-31 1978-04-18 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Counter pumping debris excluder and separator
IT1071751B (en) * 1977-03-21 1985-04-10 Termomeccanica Italiana Spa IMMERSED PUMP EQUIPPED WITH SEALING MACHINES PERFECTED TO PREVENT UNDESIRED LEAKS OF THE PUMPED FLUID
US4109920A (en) * 1977-09-06 1978-08-29 Borg-Warner Corporation Heat exchanger for shaft seal cartridge
DE2842780C2 (en) * 1978-09-30 1982-11-18 Pintsch Bamag Antriebs- Und Verkehrstechnik Gmbh, 4220 Dinslaken Sealing arrangement for rotatably mounted shafts
DE2844335A1 (en) * 1978-10-11 1980-04-30 Burgmann Dichtungswerk Feodor Shaft seal with rotating slide ring - has segment-section wings causing centrifugal deflection, to give oil pressure areas on slide surface
US4243230A (en) * 1979-10-01 1981-01-06 Crane Packing Co. Low energy tandem seal
DE3015211C2 (en) * 1980-04-19 1986-05-28 Klein, Schanzlin & Becker Ag, 6710 Frankenthal Protective device for underwater motors
US4463957A (en) * 1980-07-04 1984-08-07 Tanken Seiko Corp. Sealing device for rotary shaft and string-like member for defining spiral therefor
US4368895A (en) * 1980-12-01 1983-01-18 Mitsubishi Denki Kabushiki Kaisha Shaft sealing device utilizing a non-uniform groove depth
US4466619A (en) * 1981-07-13 1984-08-21 Durametallic Corporation Mechanical seal assembly with integral pumping device
US4377290A (en) * 1982-03-22 1983-03-22 John Crane-Houdaille, Inc. Symmetrical seal package for multiple face seals
DE3475426D1 (en) * 1983-07-08 1989-01-05 Tanken Seiko Corp Mechanical seal for sealing slurry liquid
DE3443554C2 (en) * 1983-12-02 1986-04-03 Martin Merkel GmbH & Co KG, 2102 Hamburg Slide ring seal assembly
DE3418738C2 (en) * 1984-05-19 1986-05-15 Fa. Carl Freudenberg, 6940 Weinheim Shaft seal
US4621975A (en) * 1984-10-25 1986-11-11 Graco Inc. Centrifugal pump seal
US4606712A (en) * 1984-11-14 1986-08-19 Abex Corporation Self-pumping pump shaft seal
DE3509023A1 (en) * 1985-03-13 1986-09-25 Feodor Burgmann Dichtungswerke Gmbh & Co, 8190 Wolfratshausen Pump unit
DE3617393C1 (en) * 1986-05-23 1987-12-10 Gutehoffnungshuette Man Liquid-sealed shaft seal
US5516121A (en) * 1990-01-18 1996-05-14 Framatome Dry slip ring seal having independent cooling loops
US5249812A (en) * 1990-03-12 1993-10-05 John Crane Inc. Barrier seal systems
DE4034104A1 (en) * 1990-10-26 1992-04-30 Klein Schanzlin & Becker Ag MECHANICAL SEAL
US5217234A (en) * 1991-03-22 1993-06-08 John Hornsby Mechanical seal with barrier fluid circulation system
CA2123502A1 (en) * 1991-11-12 1993-05-27 Richard F. Salant Secondary gas/liquid mechanical seal assembly
US5409241A (en) * 1993-07-14 1995-04-25 Woodex Bearing Company, Inc. Positive drive compensating shaft seal
DE19848792C1 (en) * 1998-10-22 2000-05-04 Netzsch Mohnopumpen Gmbh Submersible pump device for use in a borehole
US6361271B1 (en) 1999-11-19 2002-03-26 Capstone Turbine Corporation Crossing spiral compressor/pump
DE10042868C1 (en) * 2000-08-18 2002-04-18 Genadij Polak Labyrinth pump has exchangeable lining on outside of bush on shaft and on inside of sleeve rigidly fixed in casing, with helical grooves on inside of sleeve's lining and on outside of bush's lining
JP3762636B2 (en) * 2000-11-21 2006-04-05 イーグル工業株式会社 mechanical seal
US6494458B2 (en) 2000-12-19 2002-12-17 Karl E. Uth Rotary sealing assembly
US6565095B2 (en) * 2001-07-12 2003-05-20 Honeywell International, Inc. Face seal with internal drain
US6969071B2 (en) * 2002-08-13 2005-11-29 Perkinelmer, Inc. Face seal assembly
ITMI20031780A1 (en) * 2003-09-18 2005-03-19 Nuovo Pignone Spa HEAT EXCHANGER DEVICE FOR GAS SEALING FOR CENTRIFUGAL COMPRESSORS
US7343968B2 (en) * 2004-08-27 2008-03-18 Deublin Company Washpipe seal assembly
EP2218998B1 (en) * 2009-02-03 2012-12-19 Ipsen, Inc. A sealing mechanism for a vacuum heat treating furnace
CN101858435B (en) * 2009-04-10 2011-11-09 江苏华阳重工科技股份有限公司 Hydraulic self-balancing mechanical sealing device
MY175275A (en) * 2010-11-25 2020-06-17 Bin Zainal Abidin Azhar An improved compression unit
DE102011118477A1 (en) 2011-11-14 2013-05-16 Eagleburgmann Germany Gmbh & Co. Kg Conveying thread for mechanical seal assembly, has rotary conveying element and stationary conveying element, where one of conveying elements has conveying grooves
DE102012214276A1 (en) * 2012-08-10 2014-02-13 Siemens Aktiengesellschaft A shaft seal assembly
WO2014184603A1 (en) * 2013-05-16 2014-11-20 Dresser-Rand Sa Bi-directional shaft seal
US20160252182A1 (en) * 2013-11-22 2016-09-01 Eagle Industry Co., Ltd. Sliding parts
DE102014208738B3 (en) * 2014-05-09 2015-11-26 Eagleburgmann Germany Gmbh & Co. Kg Mechanical seal assembly with improved gas separation
EP3196516B1 (en) * 2014-09-20 2019-08-21 Eagle Industry Co., Ltd. Sliding component
EP3315832B1 (en) * 2015-06-27 2020-01-15 Eagle Industry Co., Ltd. Sliding component
US10941863B2 (en) * 2016-11-14 2021-03-09 Eagle Industry Co., Ltd. Sliding component
CN110088479A (en) * 2016-12-23 2019-08-02 格兰富控股联合股份公司 Centrifugal pump
JP6948189B2 (en) * 2017-08-29 2021-10-13 株式会社荏原製作所 Seal system
WO2019044504A1 (en) * 2017-08-29 2019-03-07 株式会社 荏原製作所 Seal system
JP7013171B2 (en) * 2017-08-29 2022-01-31 株式会社荏原製作所 Seal system
JP6900277B2 (en) * 2017-08-29 2021-07-07 株式会社荏原製作所 Seal system
DE102017220437B8 (en) 2017-11-16 2019-06-19 Eagleburgmann Germany Gmbh & Co. Kg Pump arrangement, in particular for supplying a mechanical seal assembly
CN107654655A (en) * 2017-11-19 2018-02-02 北京格瑞福机电科技有限公司 A kind of mechanical seal with supplement heat rejecter lubricating arrangement
US11846355B2 (en) * 2020-10-16 2023-12-19 Rtx Corporation Dual windage blocker and retention feature design for seal assembly
CN112682513B (en) * 2020-12-18 2023-01-20 武汉宇格电力设备有限公司 Self-lubricating mechanical seal

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2438522A (en) * 2006-05-26 2007-11-28 Dyna Drill Technologies Inc A hydrostatic mechanical seal with local pressurization of seal interface
US7389832B2 (en) 2006-05-26 2008-06-24 Dyna-Drill Technologies, Inc. Hydrostatic mechanical seal with local pressurization of seal interface
GB2438522B (en) * 2006-05-26 2011-02-02 Dyna Drill Technologies Inc Hydrostatic mechanical seal with local pressurization of seal surface
CN104676004A (en) * 2015-02-13 2015-06-03 江苏科奥流体科技有限公司 Integral sealing device of hydraulic pump

Also Published As

Publication number Publication date
FR2037367A5 (en) 1970-12-31
US3746350A (en) 1973-07-17
CH489732A (en) 1970-04-30
DE1913397A1 (en) 1970-09-24
DE1913397B2 (en) 1974-06-20
DE1913397C3 (en) 1975-02-06

Similar Documents

Publication Publication Date Title
GB1282915A (en) Improvements relating to mechanical seals
US3392910A (en) Seal
ATE140773T1 (en) MECHANICAL SEAL WITH DOUBLE SPIRAL GROOVES
GB1252848A (en)
GB1109489A (en) Pressure staging mechanical seal
GB1418206A (en) Ring seals
GB1161223A (en) Device Comprising Two Relatively Reciprocable Co-Axial Elements.
GB853829A (en) Rotary shaft seal
GB1494595A (en) Mechanical seal with pressurised lubrication pockets
GB1220530A (en) Mechanical seal assembly
GB1248547A (en) Rotating shaft seal assembly
GB1286905A (en) Improvements relating to rotary shafts and seals
GB1074036A (en) Improvements in and relating to seals for rotating shafts
GB1510699A (en) Assembly comprising two concentric relatively rotatable members with a seal between them
GB726621A (en) Improvements relating to liquid seals for gas-cooled dynamo electric machines
GB1137091A (en) A device for sealingly transmitting a liquid under pressure from a stationary structural part into a rotating shaft or the reverse
GB956237A (en) Shaft seal
GB1367399A (en) Shaft sealing assembly
GB928749A (en) Improvements in or relating to seals
GB1096641A (en) Improvements in and relating to axial thrust bearings
GB1365640A (en) Centrifuge seal and bearing assembly and method
GB946494A (en) Mechanical seals for rotating shafts
GB1253687A (en) Improvements in or relating to rotary seals
GB1279340A (en) Device for passing a rotatable shaft in a fluid-tight fashion through an enclosure wall
GB1470746A (en) Sealing arrangement for brake housing

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years