EP3803122C0 - Procédé pour déterminer ou surveiller l'état d'une pompe à vis excentrique - Google Patents

Procédé pour déterminer ou surveiller l'état d'une pompe à vis excentrique

Info

Publication number: EP3803122C0
Authority: EP; European Patent Office
Prior art keywords: monitoring; determining; condition; processing cavity; cavity pump
Prior art date: 2018-06-05
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.): Active

Application number

EP19728623.0A

Other languages

German (de)

English (en)

Other versions

EP3803122B1 (fr

EP3803122A1 (fr

Inventor

Johannes Schulz

Sascha Plazar

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.)

Seepex GmbH

Original Assignee

Seepex 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.)

2018-06-05

Filing date

2019-05-29

Publication date

2025-04-09

2019-05-29 Application filed by Seepex GmbH filed Critical Seepex GmbH

2021-04-14 Publication of EP3803122A1 publication Critical patent/EP3803122A1/fr

2025-04-09 Application granted granted Critical

2025-04-09 Publication of EP3803122B1 publication Critical patent/EP3803122B1/fr

2025-04-09 Publication of EP3803122C0 publication Critical patent/EP3803122C0/fr

Status Active legal-status Critical Current

2039-05-29 Anticipated expiration legal-status Critical

Links

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
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
- F04C2/107—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
- F04C2/1071—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth the inner and outer member having a different number of threads and one of the two being made of elastic materials, e.g. Moineau type
- F04C2/1073—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth the inner and outer member having a different number of threads and one of the two being made of elastic materials, e.g. Moineau type where one member is stationary while the other member rotates and orbits
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B51/00—Testing machines, pumps, or pumping installations
- 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
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
- F04C14/28—Safety arrangements; Monitoring
- 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
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/16—Wear
- 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
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/80—Diagnostics
- 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
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/86—Detection

Landscapes

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

EP19728623.0A 2018-06-05 2019-05-29 Procédé pour déterminer ou surveiller l'état d'une pompe à vis excentrique Active EP3803122B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE102018113347.2A DE102018113347A1 (de)	2018-06-05	2018-06-05	Verfahren zur Bestimmung oder Überwachung des Zustandes einer Exzenterschneckenpumpe
PCT/EP2019/063983 WO2019233859A1 (fr)	2018-06-05	2019-05-29	Procédé pour déterminer ou surveiller l'état d'une pompe à vis excentrique

Publications (3)

Publication Number	Publication Date
EP3803122A1 EP3803122A1 (fr)	2021-04-14
EP3803122B1 EP3803122B1 (fr)	2025-04-09
EP3803122C0 true EP3803122C0 (fr)	2025-04-09

Family

ID=66770448

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP19728623.0A Active EP3803122B1 (fr)	2018-06-05	2019-05-29	Procédé pour déterminer ou surveiller l'état d'une pompe à vis excentrique

Country Status (3)

Country	Link
EP (1)	EP3803122B1 (fr)
DE (1)	DE102018113347A1 (fr)
WO (1)	WO2019233859A1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE102020111386A1 (de)	2020-04-27	2021-10-28	Vogelsang Gmbh & Co. Kg	Zustandserfassung an Exzenterschneckenpumpen
DE102020112660A1 (de)	2020-05-11	2021-11-11	MOOG Gesellschaft mit beschränkter Haftung	Verfahren zum Bestimmen eines momentanen Verschleißzustandes einer hydrostatischen Maschine
DE102021103615A1 (de)	2021-02-16	2022-08-18	Vieweg GmbH Dosier- und Mischtechnik	Exzenterschnecken-Dosiervorrichtung und Verfahren zur Steuerung einer Exzenterschnecken-Dosiervorrichtung
DE102021112419A1 (de)	2021-05-12	2022-11-17	Ruhr-Universität Bochum, Körperschaft des öffentlichen Rechts	Pumpe zum Fördern eines Mediums und Verfahren zur Überwachung
DE102021112422A1 (de)	2021-05-12	2022-11-17	Seepex Gmbh	Pumpe zum Fördern eines Mediums und Verfahren zur Überwachung
DE102021121572A1 (de)	2021-08-19	2023-02-23	Hilger U. Kern Gmbh	Verfahren zur Bestimmung des Verschleisszustands einer Exzenterschneckenpumpe sowie Exzenterschneckenpumpe zur Durchführung des Verfahrens
DE102021132561A1 (de)	2021-12-09	2023-06-15	Seepex Gmbh	Gelenkverbindung, rotierende Einheit und Exzenterschneckenpumpe
DE102021132549A1 (de)	2021-12-09	2023-06-15	Seepex Gmbh	Gelenkverbindung, rotierende Einheit und Exzenterschneckenpumpe
CN114279316A (zh) *	2021-12-28	2022-04-05	华中科技大学	一种基于阻尼识别检测丝杠偏心程度的方法
DE102022119147A1 (de)	2022-07-29	2024-02-01	Ruhr-Universität Bochum, Körperschaft des öffentlichen Rechts	Verfahren zur Bestimmung oder Überwachung des Förderstroms einer Exzenterschneckenpumpe
DE102022134734A1 (de)	2022-12-23	2024-07-04	Ruhr-Universität Bochum, Körperschaft des öffentlichen Rechts	Verfahren zur Steuerung einer Exzenterschneckenpumpe
US12152588B1 (en)	2023-05-26	2024-11-26	Grant Prideco, Inc.	Free-mold stator for a progressing cavity pump
DE102023127245A1 (de)	2023-10-06	2025-04-10	E.G.O. Elektro-Gerätebau GmbH	Verfahren zum Betrieb einer Hydraulikeinrichtung mit drehbaren Hydraulikmitteln

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE19625947C1 (de) *	1996-06-28	1997-09-18	Uraca Pumpen	Verfahren zur Störungsfrüherkennung an Pumpen sowie entsprechende Vorrichtung
DE10063953A1 (de) *	2000-05-19	2002-02-07	Netzsch Mohnopumpen Gmbh	Verfahren und Vorrichtung zum Betreiben einer Schneckenpumpe
DE10334817A1 (de) *	2003-07-30	2005-03-10	Bosch Rexroth Ag	Vorrichtung und Verfahren zur Fehlererkennung an Pumpen
DE102005019063B3 (de) *	2005-04-23	2006-11-09	Netzsch-Mohnopumpen Gmbh	Verfahren zum Betreiben einer Exzenterschneckenpumpe
DE202005008989U1 (de)	2005-06-07	2005-08-11	Seepex Gmbh + Co Kg	Exzenterschneckenpumpe
US8439659B2 (en)	2007-08-17	2013-05-14	Seepex Gmbh	Eccentric screw pump with split stator
DE102010005049B4 (de) *	2009-02-05	2021-12-09	Robert Bosch Gmbh	Verfahren zum Erkennen von Fehlern in hydraulischen Verdrängermaschinen
US20100300683A1 (en) *	2009-05-28	2010-12-02	Halliburton Energy Services, Inc.	Real Time Pump Monitoring
DE102010037440B4 (de)	2010-09-09	2014-11-27	Seepex Gmbh	Exzenterschneckenpumpe
DE102012212829A1 (de) *	2012-07-23	2014-01-23	Robert Bosch Gmbh	Zahnradmaschine mit Drehzahlmessung anhand der Druckpulsation
DE102014112552B4 (de)	2014-09-01	2016-06-30	Seepex Gmbh	Exzenterschneckenpumpe
US10317875B2 (en) *	2015-09-30	2019-06-11	Bj Services, Llc	Pump integrity detection, monitoring and alarm generation

2018
- 2018-06-05 DE DE102018113347.2A patent/DE102018113347A1/de active Pending
2019
- 2019-05-29 WO PCT/EP2019/063983 patent/WO2019233859A1/fr not_active Ceased
- 2019-05-29 EP EP19728623.0A patent/EP3803122B1/fr active Active

Also Published As

Publication number	Publication date
DE102018113347A1 (de)	2019-12-05
WO2019233859A1 (fr)	2019-12-12
EP3803122B1 (fr)	2025-04-09
EP3803122A1 (fr)	2021-04-14

Legal Events

Date	Code	Title	Description
2019-06-15	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: UNKNOWN
2019-12-14	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE
2021-03-12	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
2021-03-12	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE
2021-04-14	17P	Request for examination filed	Effective date: 20201027
2021-04-14	AK	Designated contracting states	Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
2021-04-14	AX	Request for extension of the european patent	Extension state: BA ME
2021-09-08	DAV	Request for validation of the european patent (deleted)
2021-09-08	DAX	Request for extension of the european patent (deleted)
2023-04-27	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: EXAMINATION IS IN PROGRESS
2023-05-31	17Q	First examination report despatched	Effective date: 20230426
2024-12-17	GRAP	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOSNIGR1
2024-12-17	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: GRANT OF PATENT IS INTENDED
2025-01-22	INTG	Intention to grant announced	Effective date: 20241218
2025-01-31	GRAS	Grant fee paid	Free format text: ORIGINAL CODE: EPIDOSNIGR3
2025-03-07	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
2025-03-07	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE PATENT HAS BEEN GRANTED
2025-04-09	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
2025-04-09	REG	Reference to a national code	Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH
2025-04-15	REG	Reference to a national code	Ref country code: CH Ref legal event code: EP
2025-04-30	REG	Reference to a national code	Ref country code: DE Ref legal event code: R096 Ref document number: 502019013181 Country of ref document: DE
2025-05-07	REG	Reference to a national code	Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: GERMAN
2025-06-11	U01	Request for unitary effect filed	Effective date: 20250507
2025-06-11	U07	Unitary effect registered	Designated state(s): AT BE BG DE DK EE FI FR IT LT LU LV MT NL PT RO SE SI Effective date: 20250513
2025-07-02	U20	Renewal fee for the european patent with unitary effect paid	Year of fee payment: 7 Effective date: 20250527
2025-07-10	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: GB Payment date: 20250523 Year of fee payment: 7
2025-10-09	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	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: 20250409
2025-10-13	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: NO 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: 20250709 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: 20250710
2025-10-15	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: PL 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: 20250409
2025-10-17	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: HR 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: 20250409
2025-10-22	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: RS 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: 20250709
2025-10-28	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: IS 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: 20250809
2025-12-23	REG	Reference to a national code	Ref country code: CH Ref legal event code: H13 Free format text: ST27 STATUS EVENT CODE: U-0-0-H10-H13 (AS PROVIDED BY THE NATIONAL OFFICE) Effective date: 20251223
2026-01-13	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: SM 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: 20250409
2026-01-19	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20250531
2026-01-20	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: CZ 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: 20250409
2026-01-27	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: SK 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: 20250409
2026-01-30	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: MC 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: 20250409
2026-02-13	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
2026-02-13	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
2026-02-18	REG	Reference to a national code	Ref country code: CH Ref legal event code: L10 Free format text: ST27 STATUS EVENT CODE: U-0-0-L10-L00 (AS PROVIDED BY THE NATIONAL OFFICE) Effective date: 20260218
2026-03-18	26N	No opposition filed	Effective date: 20260112
2026-04-13	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 NON-PAYMENT OF DUE FEES Effective date: 20250529

Publication	Publication Date	Title
EP3803122C0 (fr)	2025-04-09	Procédé pour déterminer ou surveiller l'état d'une pompe à vis excentrique
DE112017003267A5 (de)	2019-03-21	Verfahren zur Ermittlung von Betriebsparametern einer Blutpumpe
EP3998106C0 (fr)	2024-11-20	Systèmes et procédés pour déterminer une région d'intérêt d'un sujet
EP3985665C0 (fr)	2024-08-21	Appareil, procédé ou programme informatique d'estimation de différence de durée entre canaux
EP3558101A4 (fr)	2020-08-19	Procédés et systèmes pour déterminer une activité cardiaque anormale
EP3295145C0 (fr)	2024-08-21	Appareil, système et procédé de détermination d'un ou de plusieurs paramètres optiques d'un verre
EP3479239A4 (fr)	2020-02-19	Système et procédé pour déterminer le risque de défaillance d'une structure
EP3443329A4 (fr)	2020-04-08	Procédés permettant la surveillance et la commande in situ d'une formation ou cicatrisation de défaut
EP4239648C0 (fr)	2025-01-29	Procédé de surveillance cardiaque
EP3355102C0 (fr)	2025-11-26	Procédé mis en uvre par ordinateur destiné à déterminer des paramètres de centrage
EP3442415C0 (fr)	2025-05-28	Procédés de mesure des niveaux d'analytes dans des liquides organiques
EP3713737A4 (fr)	2021-09-01	Procédés de fabrication d'une pellicule extérieure d'une pale de rotor
EP3987380C0 (fr)	2024-10-16	Systèmes et procédés pour déterminer un ou plusieurs paramètres de l'oeil d'un utilisateur
EP4010769C0 (fr)	2024-07-31	Une méthode pour déterminer la configuration d'un capteur
EP3423839A4 (fr)	2020-03-25	Outils de prédiction du risque de naissance prématurée
EP3458881C0 (fr)	2024-09-25	Procédé de détermination de températures souterraines
DE112018000604T8 (de)	2019-12-24	Verfahren zur Bestimmung einer Konfigurationseinstellung einer Quelle ionisierender Strahlung
DE112015004369A5 (de)	2017-06-14	Verfahren zur Herstellung eines Sensorelements oder einer aktiven Komponente eines Sensorelements
EP4077919C0 (fr)	2024-11-06	Procédé de détermination de l'orientation d'une nacelle
EP4059178A4 (fr)	2022-12-28	Appareil et procédé pour déterminer une configuration de quasi-co-localisation
EP3536821A4 (fr)	2020-08-05	Procédé de traitement d'une surface en plastique
EP3902495C0 (fr)	2023-08-02	Procédé pour surveiller la tempéerature de tissus
EP3880758C0 (fr)	2024-06-26	Procédé de traitement d'une surface
EP3545902A4 (fr)	2020-08-26	Dispositif intrabuccal pour produire une perception de contact, méthode d'application de dispositif intrabuccal et méthode de détermination d'épaisseur d'un dispositif intrabuccal
DE112018006681A5 (de)	2020-09-17	Verfahren zur bestimmung einer von einer baumaschine auf- oder abgetragenen schichtdicke und baumaschine