IT8520945A0 - Tenuta rotante a labirinto con denti a gradino. - Google Patents

Tenuta rotante a labirinto con denti a gradino.

Info

Publication number: IT8520945A0
Authority: IT; Italy
Prior art keywords: rotary seal; step teeth; labyrinth; labyrinth rotary; teeth
Prior art date: 1984-06-04

Application number

IT8520945A

Other languages

English (en)

Other versions

IT1185599B (it

Inventor

Christopher Charles Glynn

Byron Enoch Swanson

Melvin Bobo

Original Assignee

Gen Electric

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.)

1984-06-04

Filing date

1985-05-29

Publication date

1985-05-29

1985-05-29 Application filed by Gen Electric filed Critical Gen Electric

1985-05-29 Publication of IT8520945A0 publication Critical patent/IT8520945A0/it

1987-11-12 Application granted granted Critical

1987-11-12 Publication of IT1185599B publication Critical patent/IT1185599B/it

Classifications

- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
- F01D11/02—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type
- 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
- F16J15/44—Free-space packings
- F16J15/447—Labyrinth packings
- F16J15/4472—Labyrinth packings with axial path

Landscapes

Engineering & Computer Science (AREA)
General Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Turbine Rotor Nozzle Sealing (AREA)
Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)

IT20945/85A 1984-06-04 1985-05-29 Tenuta rotante a labirinto con denti a gradino IT1185599B (it)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US61662684A	1984-06-04	1984-06-04

Publications (2)

Publication Number	Publication Date
IT8520945A0 true IT8520945A0 (it)	1985-05-29
IT1185599B IT1185599B (it)	1987-11-12

Family

ID=24470309

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT20945/85A IT1185599B (it)	1984-06-04	1985-05-29	Tenuta rotante a labirinto con denti a gradino

Country Status (5)

Country	Link
JP (1)	JPH07113423B2 (it)
DE (1)	DE3519646C2 (it)
FR (1)	FR2565314B1 (it)
GB (1)	GB2159895B (it)
IT (1)	IT1185599B (it)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO1996006267A1 (en) *	1994-08-24	1996-02-29	United Technologies Corporation	Rotatable seal element for a rotary machine
DE10217060B4 (de) *	2002-04-17	2004-03-04	Siemens Ag	Berührungslose Dichtung
US8205335B2 (en)	2007-06-12	2012-06-26	United Technologies Corporation	Method of repairing knife edge seals
US8348603B2 (en) *	2009-04-02	2013-01-08	General Electric Company	Gas turbine inner flowpath coverpiece
US8591181B2 (en) *	2010-10-18	2013-11-26	General Electric Company	Turbomachine seal assembly
CN114060104B (zh) *	2021-11-10	2023-12-19	北京动力机械研究所	一种涡轮增压系统转子阶梯式高可靠长寿命密封结构

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE181954C (it) *
US1419927A (en) *	1918-05-24	1922-06-20	Westinghouse Electric & Mfg Co	Packing
US1505647A (en) *	1920-11-05	1924-08-19	Gen Electric	Packing for elastic-fluid turbines and the like
US1482031A (en) *	1923-01-18	1924-01-29	Said Parsons	Packing for rotating bodies
DE482825C (de) *	1926-07-08	1929-09-20	Karl Fischer Dipl Ing	Labyrinthstopfbuechse
GB294684A (en) *	1927-04-28	1928-07-30	Karl Baumann	Improvements in or relating to labyrinth gland packing
GB274049A (en) *	1927-06-09	1928-05-03	Fischer Karl	Improvements relating to stuffing box packing
DE522872C (de) *	1929-02-19	1931-04-16	Escher Wyss Maschf Ag	Labyrinthdichtung fuer sich drehende Maschinenteile, insbesondere an Kreiselmaschinen
DE839145C (de) *	1950-05-16	1952-05-15	Siemens Ag	Aus einzelnen mit Dichtungskaemmen versehenen ringfoermigen Gliedern aufgebaute Labyrinthstopfbuechse
DE1426867A1 (de) *	1963-04-02	1968-11-21	Stal Laval Turbin Ab	Einrichtung fuer Radialturbinen
CH467941A (de) *	1967-07-03	1969-01-31	Escher Wyss Ag	Labyrinthdichtung an einer hydraulischen Kreiselmaschine, deren Läufer zeitweise in Wasser und zeitweise in Luft umläuft.
BE790095A (fr) *	1971-10-20	1973-04-13	Mobil Oil Corp	Dispositif de support a joint d'etancheite d'arbre d'helice d'un navir
US3771798A (en) *	1972-05-11	1973-11-13	G Mcdonald	Method of repairing knife edge fins in spacer fluid seals
JPS5122961A (ja) *	1974-08-21	1976-02-24	Hitachi Ltd	Rabirinsupatsukingu
US4103899A (en) *	1975-10-01	1978-08-01	United Technologies Corporation	Rotary seal with pressurized air directed at fluid approaching the seal
US4351532A (en) *	1975-10-01	1982-09-28	United Technologies Corporation	Labyrinth seal
JPS5542048U (it) *	1978-09-12	1980-03-18

1985
- 1985-05-23 GB GB08513027A patent/GB2159895B/en not_active Expired
- 1985-05-29 IT IT20945/85A patent/IT1185599B/it active
- 1985-05-31 FR FR8508186A patent/FR2565314B1/fr not_active Expired
- 1985-06-01 DE DE3519646A patent/DE3519646C2/de not_active Expired - Lifetime
- 1985-06-03 JP JP60118990A patent/JPH07113423B2/ja not_active Expired - Lifetime

Also Published As

Publication number	Publication date
FR2565314A1 (fr)	1985-12-06
JPH07113423B2 (ja)	1995-12-06
DE3519646A1 (de)	1985-12-05
IT1185599B (it)	1987-11-12
GB2159895B (en)	1987-09-16
FR2565314B1 (fr)	1989-07-28
GB8513027D0 (en)	1985-06-26
DE3519646C2 (de)	2002-03-07
GB2159895A (en)	1985-12-11
JPS616465A (ja)	1986-01-13

Publication	Publication Date	Title
IT8521401A0 (it)	1985-07-02	Guarnizione a spazzola.
IT8919233A0 (it)	1989-01-27	Guarnizione a spazzole.
GB2158166B (en)	1987-08-19	Labyrinth type rotary seal
DE3674271D1 (de)	1990-10-25	Dichtungsanordnung.
IT8583334A0 (it)	1985-02-28	Tenuta a labirinto
AT384663B (de)	1987-12-28	Ringfoermige dichtung
PT89378A (pt)	1989-10-04	Vedacao de labirinto dividida
IT8521985A0 (it)	1985-08-26	Complesso a denti scarificatori.
ATE45707T1 (de)	1989-09-15	Dichtungsanordnung.
NO872293D0 (no)	1987-06-01	Tettende pakning.
DE3672696D1 (de)	1990-08-23	Wellendichtung.
IT8520086A0 (it)	1985-03-27	Guarnizione anulare.
DE3671507D1 (de)	1990-06-28	Dichtungsringe.
DE3671279D1 (de)	1990-06-21	Gleitringdichtungen.
IT8520945A0 (it)	1985-05-29	Tenuta rotante a labirinto con denti a gradino.
IT8223811A0 (it)	1982-10-19	Tenuta a labirinto perfezionata.
IT8383414A0 (it)	1983-07-08	Guarnizione a labirinto.
NO862239D0 (no)	1986-06-05	Glideringstetning.
DE3862948D1 (de)	1991-07-04	Drehdichtung.
IT8520149A0 (it)	1985-03-29	Fresa a denti riportati.
DE3684979D1 (de)	1992-05-27	Zahnwiederherstellungsmaterial.
IT8445724A0 (it)	1984-10-23	Guarnizione di tenuta a labirinto.
AT382223B (de)	1987-01-26	Profilierter dichtungsring
IT1178811B (it)	1987-09-16	Giunto rotante a tenuta
ES278827Y (es)	1985-12-16	Un precinto, perfeccionado

Legal Events

Date	Code	Title	Description
1999-10-27	TA	Fee payment date (situation as of event date), data collected since 19931001	Effective date: 19950529