EP1126174A3 - Plastic gear for gear pump - Google Patents

Plastic gear for gear pump Download PDF

Info

Publication number
EP1126174A3
EP1126174A3 EP01100349A EP01100349A EP1126174A3 EP 1126174 A3 EP1126174 A3 EP 1126174A3 EP 01100349 A EP01100349 A EP 01100349A EP 01100349 A EP01100349 A EP 01100349A EP 1126174 A3 EP1126174 A3 EP 1126174A3
Authority
EP
European Patent Office
Prior art keywords
gear
plastic
pump
gear pump
plastic gear
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.)
Granted
Application number
EP01100349A
Other languages
German (de)
French (fr)
Other versions
EP1126174B1 (en
EP1126174A2 (en
Inventor
Alexander Maute
Willi Schneider
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.)
Joma Hydromechanic GmbH
Original Assignee
Joma Hydromechanic GmbH
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
Priority to DE10006629 priority Critical
Priority to DE10006629A priority patent/DE10006629C2/en
Application filed by Joma Hydromechanic GmbH filed Critical Joma Hydromechanic GmbH
Publication of EP1126174A2 publication Critical patent/EP1126174A2/en
Publication of EP1126174A3 publication Critical patent/EP1126174A3/en
Application granted granted Critical
Publication of EP1126174B1 publication Critical patent/EP1126174B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00Rotary-piston machines or pumps
    • F04C2/08Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/082Details specially related to intermeshing engagement type machines or pumps
    • F04C2/084Toothed wheels
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05CINDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2225/00Synthetic polymers, e.g. plastics; Rubber
    • F05C2225/12Polyetheretherketones, e.g. PEEK

Abstract

Es wird ein aus Kunststoff bestehendes Zahnrad für eine Zahnradpumpe beschrieben, dessen Radkörper (20) eine Außen- oder Innenverzahnung aufweist. Um das Gewicht dieses Zahnrades möglichst klein zu halten, weisen dessen Zähne (26) wenigstens einen, zumindest von einer Zahnstirnseite aus zugänglichen Hohlraum (32) auf. Um beim Einsatz von Zahnradpumpen mit solchen Zahnrädern zur Förderung und Druckbeaufschlagung von Motorenöl in Kraftfahrzeugmotoren durch die Hohlräume (32) Planschverluste zu vermeiden, sind diese verschlossen oder mit einem temperatur- und medienbeständigen Füllmaterial (66) ausgeschäumt.
Figure 00000001
A gear wheel made of plastic for a gear pump is described, the wheel body (20) of which has external or internal teeth. A gear wheel made of plastic for a gear pump is described, the wheel body (20) of which has external or internal teeth. In order to keep the weight of this gear as small as possible, its teeth (26) have at least one cavity (32) that is accessible from at least one face of the tooth. In order to keep the weight of this gear as small as possible, its teeth (26) have at least one cavity (32) that is accessible from at least one face of the tooth. In order to avoid splashing losses when using gear pumps with such gear wheels for conveying and pressurizing motor oil in motor vehicle engines through the cavities (32), these are sealed or filled with a temperature and media-resistant filler material (66). In order to avoid splashing losses when using gear pumps with such gear wheels for conveying and pressurizing motor oil in motor vehicle engines through the cavities (32), these are sealed or filled with a temperature and media-resistant filler material (66).
EP01100349A 2000-02-14 2001-01-05 Plastic gear for gear pump Active EP1126174B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE10006629 2000-02-14
DE10006629A DE10006629C2 (en) 2000-02-14 2000-02-14 Plastic gear wheel for a gear pump and method for its production

Publications (3)

Publication Number Publication Date
EP1126174A2 EP1126174A2 (en) 2001-08-22
EP1126174A3 true EP1126174A3 (en) 2002-06-19
EP1126174B1 EP1126174B1 (en) 2004-05-26

Family

ID=7630939

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01100349A Active EP1126174B1 (en) 2000-02-14 2001-01-05 Plastic gear for gear pump

Country Status (3)

Country Link
EP (1) EP1126174B1 (en)
AT (1) AT267958T (en)
DE (2) DE10006629C2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT507284A1 (en) 2008-09-05 2010-03-15 Pkt Praez Skunststofftechnik B Rotor set for a rotor pump and rotor pump

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB316295A (en) * 1928-07-27 1930-05-15 Leblanc Vickers Maurice Sa Improvements in or relating to rotary compressors
US3887979A (en) * 1974-03-06 1975-06-10 Minoru Kamiya Manufacturing process of a rolled gear
US4571005A (en) * 1983-12-16 1986-02-18 Messerschmitt-Boelkow-Blohm Gesellschaft Mit Beschraenkter Haftung Wheel, especially disk wheel
US5468132A (en) * 1992-01-07 1995-11-21 Snell (Hydro Design) Consultancy Limited Water turbines
EP0791750A1 (en) * 1996-02-21 1997-08-27 Ebara Corporation Rotor for turbomachine and method of making the same
GB2322095A (en) * 1997-02-13 1998-08-19 Ctp Davall Limited Moulded parts used as power and/or motion transmission components
DE29810548U1 (en) * 1998-06-16 1998-12-17 Joma Polytec Gmbh Gear for a gear pump

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2944732A (en) * 1955-02-24 1960-07-12 Heraeus Gmbh W C Vacuum pumps

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB316295A (en) * 1928-07-27 1930-05-15 Leblanc Vickers Maurice Sa Improvements in or relating to rotary compressors
US3887979A (en) * 1974-03-06 1975-06-10 Minoru Kamiya Manufacturing process of a rolled gear
US4571005A (en) * 1983-12-16 1986-02-18 Messerschmitt-Boelkow-Blohm Gesellschaft Mit Beschraenkter Haftung Wheel, especially disk wheel
US5468132A (en) * 1992-01-07 1995-11-21 Snell (Hydro Design) Consultancy Limited Water turbines
EP0791750A1 (en) * 1996-02-21 1997-08-27 Ebara Corporation Rotor for turbomachine and method of making the same
GB2322095A (en) * 1997-02-13 1998-08-19 Ctp Davall Limited Moulded parts used as power and/or motion transmission components
DE29810548U1 (en) * 1998-06-16 1998-12-17 Joma Polytec Gmbh Gear for a gear pump

Also Published As

Publication number Publication date
DE50102371D1 (en) 2004-07-01
AT267958T (en) 2004-06-15
DE10006629C2 (en) 2002-06-27
DE10006629A1 (en) 2001-08-23
EP1126174B1 (en) 2004-05-26
EP1126174A2 (en) 2001-08-22

Similar Documents

Publication Publication Date Title
Møller Fluorides and dental fluorosis.
EP2320092A3 (en) Pump unit
IT1251671B (en) Unit 'command for a transmission, in particular for motor vehicles
FR2388175A1 (en) A hydraulic transmission system for vehicle
IT8221982D0 (en) The oil composition lubricant to reduce the consumption in internal dicombustibile acombustione engines.
EP1138938A3 (en) Vehicle charge assembly
DE69003630T2 (en) Assembly with viscous coupling for torque transmission in a motor vehicle.
DE10228552A1 (en) Radial piston pump esp. for common-rail fuel injection systems for IC engines has drive shaft with end section on floating mounting for fuel feed pump in front of piston pump
EP1260727A3 (en) Walk-behind working machine
IT1138477B (en) Servomechanism, in particular to boost the braking power in a motor vehicle
JPH04138049A (en) Small motor with worm reduction gear
EP1250895A3 (en) Method for producing dental ceramic elements
BRPI0518831A2 (en) flexible axle, axle member, vehicle equipped with such a flexible axle, and method of manufacturing such member
DE112012000049T5 (en) Wave gear and flexible, externally toothed gear
EP1321288A3 (en) Elastic composite foil
EP0953739A3 (en) Exhaust gas treating process and device for an internal combustion engine equipped with a SCR-catalytic converter
DE2341940A1 (en) Bearing block, in particular for recording a sun visor in the vehicle
EP1211133A3 (en) Vehicle internal rear view mirror
FR2410187A1 (en) gear system planetaire
EP0791533A3 (en) Chain shifting gear change for bicycles
DE102011003222A1 (en) Operating pedal for motor vehicles
DE2514781A1 (en) Change-speed gear in group type, in particular for agricultural and / or construction usable motor vehicles
EP1584517A3 (en) Vehicle pillar finisher
GB1271199A (en) Improvements in or relating to hydraulic vehicle drive transmission systems
IT7947981D0 (en) the driver's cab for vehicles dustriali

Legal Events

Date Code Title Description
AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

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 TR

17P Request for examination filed

Effective date: 20020709

17Q First examination report despatched

Effective date: 20021126

AKX Designation fees paid

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040526

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040526

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040526

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040526

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040526

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040526

Ref country code: GB

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040526

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20040526

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: GERMAN

REF Corresponds to:

Ref document number: 50102371

Country of ref document: DE

Date of ref document: 20040701

Kind code of ref document: P

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040826

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040826

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040826

GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977

Effective date: 20040526

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050105

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050105

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050131

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050131

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050131

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050131

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050131

26N No opposition filed

Effective date: 20050301

EN Fr: translation not filed
BERE Be: lapsed

Owner name: *JOMA-HYDROMECHANIC G.M.B.H.

Effective date: 20050131

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

BERE Be: lapsed

Owner name: *JOMA-HYDROMECHANIC G.M.B.H.

Effective date: 20050131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041026

PGFP Annual fee paid to national office [announced from national office to epo]

Ref country code: DE

Payment date: 20100319

Year of fee payment: 10

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50102371

Country of ref document: DE

Effective date: 20110802

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110802