EP 0895020 B1 20090218 - Device for introducing air into a hydropneumatic reservoir
Title (en)
Device for introducing air into a hydropneumatic reservoir
Title (de)
Vorrichtung zur Einführung von Luft in einem hydropneumatischen Vorratsbehälter
Title (fr)
Dispositif d'introduction d'air pour un réservoir hydropneumatique
Publication
Application
Priority
FR 9709902 A 19970801
Abstract (en)
[origin: EP0895020A1] The air inlet device (7), for a system comprising a hydropneumatic reservoir (3) mounted on a pipe, is positioned so that the air is let into a zone containing water at an absolute pressure which is below or slightly above atmospheric pressure, and is actuated only when the hydropneumatic reservoir needs re-filling with air. The inlet device comprises an air feed tube (8), mounted on the pipe between the water intake and a pump (2) equipped with an electrically-driven air control valve and a flow limiter. The pipe is equipped with a vacuum generator upstream of the hydropneumatic reservoir, e.g. in the form of a Venturi tube.
IPC 8 full level
F17D 1/20 (2006.01)
CPC (source: EP US)
F17D 1/20 (2013.01 - EP US); Y10T 137/3118 (2015.04 - EP US); Y10T 137/3133 (2015.04 - EP US)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0895020 A1 19990203; EP 0895020 B1 20090218; AT E423292 T1 20090315; DE 69840557 D1 20090402; DK 0895020 T3 20090615; DZ 2577 A1 20030222; ES 2322303 T3 20090618; FR 2766883 A1 19990205; FR 2766883 B1 19991022; MA 24625 A1 19990401; PT 895020 E 20090525; TN SN98147 A1 20001229; US 6047721 A 20000411
DOCDB simple family (application)
EP 98401961 A 19980731; AT 98401961 T 19980731; DE 69840557 T 19980731; DK 98401961 T 19980731; DZ 980187 A 19980801; ES 98401961 T 19980731; FR 9709902 A 19970801; MA 25197 A 19980731; PT 98401961 T 19980731; TN SN98147 A 19980731; US 12497898 A 19980730