GB1371009A – Systems for maintining oil seals
– Google Patents
GB1371009A – Systems for maintining oil seals
– Google Patents
Systems for maintining oil seals
Info
Publication number
GB1371009A
GB1371009A
GB1644773A
GB1644773A
GB1371009A
GB 1371009 A
GB1371009 A
GB 1371009A
GB 1644773 A
GB1644773 A
GB 1644773A
GB 1644773 A
GB1644773 A
GB 1644773A
GB 1371009 A
GB1371009 A
GB 1371009A
Authority
GB
United Kingdom
Prior art keywords
piston
oil
seal
gas
space
Prior art date
1972-04-24
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
GB1644773A
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.)
Nuovo Pignone SpA
Original Assignee
Nuovo Pignone SpA
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.)
1972-04-24
Filing date
1973-04-05
Publication date
1974-10-23
1973-04-05
Application filed by Nuovo Pignone SpA
filed
Critical
Nuovo Pignone SpA
1974-10-23
Publication of GB1371009A
publication
Critical
patent/GB1371009A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
F16J15/40—Sealings between relatively-moving surfaces by means of fluid
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
1371009 Liquid seals NUOVO PIGNONE SpA 5 April 1973 [24 April 1972] 16447/73 Heading F2B A system for supplying pressurized oil to a seal 15, e.g. for a centrifugal pump rotor 16, comprises means 18 for pumping the oil from a source through a duct 21 to the seal 15, and regulating and accumulating means branched off the duct 21, comprising a cylinder 24 divided into two spaces 23, 27 by a piston 26, one space 23 being connected to the seal 15 and the other, 27, to the pressure of gas 25 to be sealed off. A plunger 30 projects from a face 29 of the piston 26, which face 29 is of smaller area than that of the face in contact with the gas, so that equilibrium is set up with a higher oil pressure than gas pressure. In the event of failure of the pump means 18, gas pressure on the piston 26 maintains oil flow through the ducts 22, 21 to the seal 15 until the rotor 16 has been brought to rest. In the equilibrium position of the piston 26, oil entering the cylinder space 23 through the duet 22 escapes along grooves 35 in the plunger 30, this escape being blocked when the piston 26 leaves the equilibrium position. Oil leakage into the gas space 25 or the cylinder space 27 is ducted to a tank 32.
GB1644773A
1972-04-24
1973-04-05
Systems for maintining oil seals
Expired
GB1371009A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
IT23500/72A
IT959643B
(en)
1972-04-24
1972-04-24
HIGH PRESSURE OIL ACCUMULATOR DEVICE AND REGULATOR OF THE SAME TO BE USED FOR OIL SEALS OF CEN TRIFUGHI HIGH PRESSURE COMPRESSORS
Publications (1)
Publication Number
Publication Date
GB1371009A
true
GB1371009A
(en)
1974-10-23
Family
ID=11207648
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB1644773A
Expired
GB1371009A
(en)
1972-04-24
1973-04-05
Systems for maintining oil seals
Country Status (11)
Country
Link
US
(1)
US3887195A
(en)
JP
(1)
JPS549723B2
(en)
BE
(1)
BE797919A
(en)
DE
(1)
DE2320205A1
(en)
DK
(1)
DK140319B
(en)
FR
(1)
FR2182454A5
(en)
GB
(1)
GB1371009A
(en)
IE
(1)
IE39412B1
(en)
IT
(1)
IT959643B
(en)
LU
(1)
LU67467A1
(en)
NL
(1)
NL7305398A
(en)
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
USRE29679E
(en)
1975-03-20
1978-06-27
Gray Tool Company
Stem sealing for high pressure valve or the like
Families Citing this family (9)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
JPS60219438A
(en)
*
1984-04-13
1985-11-02
Mitsubishi Electric Corp
Sterling engine
JPS63171507A
(en)
*
1987-01-10
1988-07-15
株式会社 イシハラ
Hanger apparatus
DE3709397C2
(en)
*
1987-03-21
1997-10-09
Head Acoustics Gmbh
Process for filtering sound signals
US5746435A
(en)
*
1994-09-30
1998-05-05
Arbuckle; Donald P.
Dual seal barrier fluid leakage control method
DE69930943D1
(en)
*
1998-08-17
2006-05-24
Donald Philip Arbuckle
INTEGRATED SEALANT PROTECTION AGAINST LIQUIDS WITH VISUAL VOLUME INDEPENDENT
US7118114B2
(en)
*
2003-05-15
2006-10-10
Woodward Governor Company
Dynamic sealing arrangement for movable shaft
US7426936B2
(en)
*
2005-11-29
2008-09-23
Woodward Governor Company
Fully independent, redundant fluid energized sealing solution with secondary containment
US20070120084A1
(en)
*
2005-11-29
2007-05-31
Stumbo Steven C
Fully independent, redundant fluid energized sealing solution with secondary containment
US20080067754A1
(en)
*
2006-09-14
2008-03-20
John Schroeder
Pressure gradient rotary sealing system with external piston
Family Cites Families (4)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US719460A
(en)
*
1901-10-24
1903-02-03
Justus C Goosmann
Refrigerating-machine.
US787136A
(en)
*
1904-05-28
1905-04-11
Henry E Warren
Mechanism for operating valves or other controllers.
US3176996A
(en)
*
1962-10-12
1965-04-06
Barnett Leon Truman
Oil balanced shaft seal
US3209830A
(en)
*
1963-03-29
1965-10-05
Continental Oil Co
Stuffing box assembly
1972
1972-04-24
IT
IT23500/72A
patent/IT959643B/en
active
1973
1973-04-05
GB
GB1644773A
patent/GB1371009A/en
not_active
Expired
1973-04-09
BE
BE1004951A
patent/BE797919A/en
not_active
IP Right Cessation
1973-04-10
IE
IE570/73A
patent/IE39412B1/en
unknown
1973-04-10
FR
FR7312761A
patent/FR2182454A5/fr
not_active
Expired
1973-04-17
NL
NL7305398A
patent/NL7305398A/xx
not_active
Application Discontinuation
1973-04-18
DK
DK217673AA
patent/DK140319B/en
not_active
IP Right Cessation
1973-04-19
DE
DE2320205A
patent/DE2320205A1/en
active
Pending
1973-04-20
LU
LU67467A
patent/LU67467A1/xx
unknown
1973-04-24
US
US353956A
patent/US3887195A/en
not_active
Expired – Lifetime
1973-04-24
JP
JP4580073A
patent/JPS549723B2/ja
not_active
Expired
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
USRE29679E
(en)
1975-03-20
1978-06-27
Gray Tool Company
Stem sealing for high pressure valve or the like
Also Published As
Publication number
Publication date
BE797919A
(en)
1973-07-31
DE2320205A1
(en)
1973-11-08
FR2182454A5
(en)
1973-12-07
JPS4941919A
(en)
1974-04-19
IT959643B
(en)
1973-11-10
IE39412L
(en)
1973-10-24
JPS549723B2
(en)
1979-04-26
DK140319C
(en)
1979-12-24
NL7305398A
(en)
1973-10-26
IE39412B1
(en)
1978-10-11
LU67467A1
(en)
1973-07-06
DK140319B
(en)
1979-07-30
US3887195A
(en)
1975-06-03
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Legal Events
Date
Code
Title
Description
1975-03-05
PS
Patent sealed [section 19, patents act 1949]
1984-12-12
PCNP
Patent ceased through non-payment of renewal fee
