EP 2463443 B1 20140521 - Injection head for injecting consolidating pressurized fluid mixtures into the ground
Title (en)
Injection head for injecting consolidating pressurized fluid mixtures into the ground
Title (de)
Einspritzkopf zum Einspritzen konsolidierender unter Druck stehender Flüssiggemische in den Boden
Title (fr)
Tête d'injection pour l'injection de mélanges de fluide pressurisés de consolidation dans le sol
Publication
Application
Priority
IT TO20100988 A 20101213
Abstract (en)
[origin: EP2463443A1] The injection head (10) includes a cylindrical outer body (12) defining a central, longitudinal axis (z) with an upper inlet (13) for receiving fluids from a string of tubular rods. One or more helical ducts (20a, 20b) impart to the fluids a helical motion around the axis (z) towards respective outlet side nozzles (11). Respective gradually downwardly tapered duct sections (17a, 17b) are interposed between the upper inlet (13) and the helical ducts (20a, 20b). The tapered ducts (17a, 17b) have straight geometric axes and are connected to the respective helical ducts at locations (19a, 19b) axially offset from the central axis (z) and near the periphery of the body (12).
IPC 8 full level
CPC (source: 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
DOCDB simple family (publication)
EP 2463443 A1 20120613; EP 2463443 B1 20140521; IT 1403014 B1 20130927; IT TO20100988 A1 20120614
DOCDB simple family (application)
EP 11193013 A 20111212; IT TO20100988 A 20101213