CABECA DE INJECCAO SOB PRESSAO

CABECA DE INJECCAO SOB PRESSAO

The injection head, mounted on the end of a string of rods or pipes delivering a liquid under pressure, comprises a housing (32) with its upper end (40) connected to the rods or pipes, an outer wall (34) and an inner nozzle (50). A curved duct (54) inside the housing is connected at one end to the l...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: JACQUES MOREY, JEAN-CLAUDE GESSAY
Format: Patent
Sprache:por
Schlagworte:
EMBANKMENTS
EXCAVATIONS
FIXED CONSTRUCTIONS
FOUNDATIONS
HYDRAULIC ENGINEERING
SOIL SHIFTING
UNDERGROUND OR UNDERWATER STRUCTURES
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Beschreibung
Zusammenfassung:The injection head, mounted on the end of a string of rods or pipes delivering a liquid under pressure, comprises a housing (32) with its upper end (40) connected to the rods or pipes, an outer wall (34) and an inner nozzle (50). A curved duct (54) inside the housing is connected at one end to the lower end of the liquid feed pipe (48) and at the other tangentially to the nozzle. The curved portion of the duct is of continuously variable radius and has a regularly reducing cross-section towards the nozzle outlet for at least half its length.