EP 3283695 A1 20180221 - SUCTION EXCAVATOR WITH FLOW REVERSAL AND METHOD FOR CONTROLLING SAME
Title (en)
SUCTION EXCAVATOR WITH FLOW REVERSAL AND METHOD FOR CONTROLLING SAME
Title (de)
SAUGBAGGER MIT STRÖMUNGSUMKEHR SOWIE VERFAHREN ZU DESSEN STEUERUNG
Title (fr)
DRAGUE SUCEUSE À INVERSION DU FLUX AINSI QUE PROCÉDÉ DE COMMANDE ASSOCIÉ
Publication
Application
Priority
- DE 102015105836 A 20150416
- EP 2016057710 W 20160408
Abstract (en)
[origin: CA2982509A1] The invention relates to a suction excavator (01) comprising a suction hose (02) with a suction opening (03) for pneumatically receiving solid or liquid suction material (04) by means of a fast flowing air flow. The suction excavator additionally has a separator (07) for separating the suction material (04) from the air flow, a filter unit (08) for cleaning the air flow, a ventilator unit (06) for generating the air flow, and a recirculation channel (13) which is connected to the pressure side (10) of the ventilator unit (06) via a volume-controllable recirculation opening. According to the invention, a volume-controllable auxiliary opening (16) is provided which allows auxiliary air (17) from the surrounding area to be supplied to the suction side (09) of the ventilator unit (06) downstream the filter unit (08) in the flow direction. The recirculation channel (13) can be fluidically coupled to the suction hose (02) in order to generate overpressure in the recirculation channel (13) to blow out recirculation air through the suction hose (02). The invention further relates to a method for controlling such a suction excavator.
IPC 8 full level
E02F 3/88 (2006.01)
CPC (source: EP US)
B08B 5/04 (2013.01 - US); E01H 1/0809 (2013.01 - EP US); E01H 1/0836 (2013.01 - EP US); E02F 3/8816 (2013.01 - EP US); E02F 3/905 (2013.01 - EP US); E02F 3/907 (2013.01 - EP US); E02F 3/94 (2013.01 - EP US); F04D 23/003 (2013.01 - EP)
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DE 102015105836 B3 20160310; CA 2982509 A1 20161020; CA 2982509 C 20230919; CN 107532404 A 20180102; CN 107532404 B 20210504; EP 3283695 A1 20180221; EP 3283695 B1 20190130; US 10640938 B2 20200505; US 2018119375 A1 20180503; WO 2016166021 A1 20161020
DOCDB simple family (application)
DE 102015105836 A 20150416; CA 2982509 A 20160408; CN 201680021436 A 20160408; EP 16717865 A 20160408; EP 2016057710 W 20160408; US 201615565990 A 20160408