EP 3715583 B1 20210721 - CLEANING OF A DISCHARGE OPENING OF A TUNNEL-BORING MACHINE BY ULTRASONIC WAVES
Title (en)
CLEANING OF A DISCHARGE OPENING OF A TUNNEL-BORING MACHINE BY ULTRASONIC WAVES
Title (de)
ABREINIGUNG EINER AUSLASSÖFFNUNG EINES TUNNELBOHRERS DURCH ULTRASCHALLWELLEN
Title (fr)
DÉCOLMATAGE D'UNE OUVERTURE D'ÉVACUATION D'UN TUNNELIER PAR DES ONDES ULTRASONORES
Publication
Application
Priority
FR 1902023 A 20190227
Abstract (en)
[origin: AU2020201411A1] The invention relates to a cutting wheel of a tunnel boring machine comprising at least one material discharge opening (5), said discharge opening (5) 5 being delimited by a circumferential wall (10), the cutting wheel (3) being characterized in that it further comprises at least one ultrasonic emitter (6) configured to generate a mechanical vibratory motion in a range of ultrasonic frequencies, said emitter (6) being fixed against the circumferential wall (10) so as to transmit the mechanical vibratory motion to the 10 vibrating circumferential wall (10) and to reduce its coefficient of friction. Figure for the abstract: Fig. 3 [Fig. 1] [Fig. 2] 6 6a
IPC 8 full level
E21D 9/087 (2006.01); E21D 9/12 (2006.01)
CPC (source: EP US)
E21D 9/1046 (2013.01 - EP US); E21D 9/112 (2013.01 - EP US)
Designated contracting state (EPC)
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
DOCDB simple family (publication)
EP 3715583 A1 20200930; EP 3715583 B1 20210721; AU 2020201411 A1 20200910; DK 3715583 T3 20211004; ES 2894661 T3 20220215; FR 3093126 A1 20200828; FR 3093126 B1 20210219; HR P20211577 T1 20211224; US 10851650 B2 20201201; US 2020318478 A1 20201008
DOCDB simple family (application)
EP 20159846 A 20200227; AU 2020201411 A 20200227; DK 20159846 T 20200227; ES 20159846 T 20200227; FR 1902023 A 20190227; HR P20211577 T 20200227; US 202016802281 A 20200226