EP0881392A3 - Dispositif d'étanchéité de traversée d'arbre pour pompes à engrenages - Google Patents

Dispositif d'étanchéité de traversée d'arbre pour pompes à engrenages Download PDF

Info

Publication number: EP0881392A3
Authority: EP; European Patent Office
Prior art keywords: sealing; arrangement; seal; gear pumps; shaft passage
Prior art date: 1998-07-31
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.): Granted

Application number

EP98114385A

Other languages

German (de)

English (en)

Other versions

EP0881392A2 (fr

EP0881392B1 (fr

Inventor

Marco Benetti

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.)

Maag Pump Systems AG

Original Assignee

Maag Pump Systems AG

Maag Pump Systems Textron AG

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.)

1998-07-31

Filing date

1998-07-31

Publication date

1999-02-10

1998-07-31 Application filed by Maag Pump Systems AG, Maag Pump Systems Textron AG filed Critical Maag Pump Systems AG

1998-07-31 Priority to EP19980114385 priority Critical patent/EP0881392B1/fr

1998-07-31 Priority to DE59813954T priority patent/DE59813954D1/de

1998-12-02 Publication of EP0881392A2 publication Critical patent/EP0881392A2/fr

1999-02-10 Publication of EP0881392A3 publication Critical patent/EP0881392A3/fr

2007-03-28 Application granted granted Critical

2007-03-28 Publication of EP0881392B1 publication Critical patent/EP0881392B1/fr

2018-07-31 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

238000007789 sealing Methods 0.000 title 1

Classifications

- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
- F04C15/0034—Sealing arrangements in rotary-piston machines or pumps for other than the working fluid, i.e. the sealing arrangements are not between working chambers of the machine
- F04C15/0038—Shaft sealings specially adapted for rotary-piston machines or pumps

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Rotary Pumps (AREA)
Details And Applications Of Rotary Liquid Pumps (AREA)

EP19980114385 1998-07-31 1998-07-31 Dispositif d'étanchéité de traversée d'arbre pour pompes à engrenages Expired - Lifetime EP0881392B1 (fr)

Priority Applications (2)

Application Number	Priority Date	Filing Date	Title
EP19980114385 EP0881392B1 (fr)	1998-07-31	1998-07-31	Dispositif d'étanchéité de traversée d'arbre pour pompes à engrenages
DE59813954T DE59813954D1 (de)	1998-07-31	1998-07-31	Wellendurchführung, insbesondere für eine Zahnradpumpe

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
EP19980114385 EP0881392B1 (fr)	1998-07-31	1998-07-31	Dispositif d'étanchéité de traversée d'arbre pour pompes à engrenages

Publications (3)

Publication Number	Publication Date
EP0881392A2 EP0881392A2 (fr)	1998-12-02
EP0881392A3 true EP0881392A3 (fr)	1999-02-10
EP0881392B1 EP0881392B1 (fr)	2007-03-28

Family

ID=8232382

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP19980114385 Expired - Lifetime EP0881392B1 (fr)	1998-07-31	1998-07-31	Dispositif d'étanchéité de traversée d'arbre pour pompes à engrenages

Country Status (2)

Country	Link
EP (1)	EP0881392B1 (fr)
DE (1)	DE59813954D1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP2820247B1 (fr)	2012-03-02	2021-02-17	Maag Pump Systems AG	Système d'étanchéité, dispositif de transport pourvu d'un système d'étanchéité ainsi que procédé permettant de faire fonctionner ledit système d'étanchéité
EP4567277A4 (fr) *	2022-08-04	2026-04-22	Ihi Corp	Pompe à triple engrenage
DE202023000769U1 (de)	2023-04-06	2023-08-09	SKTEC GmbH	Zahnradpumpe mit Dichtsystem

Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3937477A (en) *	1973-12-26	1976-02-10	Borg-Warner Corporation	Mechanical seal system
US4243230A (en) *	1979-10-01	1981-01-06	Crane Packing Co.	Low energy tandem seal
US4291888A (en) *	1979-01-24	1981-09-29	Kobe Steel, Limited	Rotor shaft sealing mechanism in synthetic resin kneading machines or extruders

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE4125128C2 (de)	1990-08-10	1994-11-24	Barmag Barmer Maschf	Zahnradpumpe

1998
- 1998-07-31 EP EP19980114385 patent/EP0881392B1/fr not_active Expired - Lifetime
- 1998-07-31 DE DE59813954T patent/DE59813954D1/de not_active Expired - Fee Related

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3937477A (en) *	1973-12-26	1976-02-10	Borg-Warner Corporation	Mechanical seal system
US4291888A (en) *	1979-01-24	1981-09-29	Kobe Steel, Limited	Rotor shaft sealing mechanism in synthetic resin kneading machines or extruders
US4243230A (en) *	1979-10-01	1981-01-06	Crane Packing Co.	Low energy tandem seal

Also Published As

Publication number	Publication date
EP0881392A2 (fr)	1998-12-02
EP0881392B1 (fr)	2007-03-28
DE59813954D1 (de)	2007-05-10

Legal Events

Date	Code	Title	Description
1998-10-16	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1998-12-02	AK	Designated contracting states	Kind code of ref document: A2 Designated state(s): CH DE LI
1998-12-02	AX	Request for extension of the european patent	Free format text: AL;LT;LV;MK;RO;SI
1998-12-23	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1999-02-10	AK	Designated contracting states	Kind code of ref document: A3 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
1999-02-10	AX	Request for extension of the european patent	Free format text: AL;LT;LV;MK;RO;SI
1999-10-06	17P	Request for examination filed	Effective date: 19990805
1999-10-20	AKX	Designation fees paid	Free format text: CH DE LI
2003-01-02	17Q	First examination report despatched	Effective date: 20021111
2005-06-29	RAP1	Party data changed (applicant data changed or rights of an application transferred)	Owner name: MAAG PUMP SYSTEMS TEXTRON AG
2006-10-25	GRAP	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOSNIGR1
2007-02-20	GRAS	Grant fee paid	Free format text: ORIGINAL CODE: EPIDOSNIGR3
2007-02-23	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
2007-03-28	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): CH DE LI
2007-04-30	REG	Reference to a national code	Ref country code: CH Ref legal event code: NV Representative=s name: TROESCH SCHEIDEGGER WERNER AG Ref country code: CH Ref legal event code: EP
2007-05-10	REF	Corresponds to:	Ref document number: 59813954 Country of ref document: DE Date of ref document: 20070510 Kind code of ref document: P
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2008-03-05	26N	No opposition filed	Effective date: 20080102
2009-11-30	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: DE Payment date: 20090723 Year of fee payment: 12
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