EP 0167837 B1 19890315 - SEAL DEVICE FOR INTERPOSITION BETWEEN A PUMP BODY AND PUMP IMPELLER
Title (en)
SEAL DEVICE FOR INTERPOSITION BETWEEN A PUMP BODY AND PUMP IMPELLER
Publication
Application
Priority
IT 4159184 A 19840607
Abstract (en)
[origin: EP0167837A1] The present invention concerns a seal device (1) interposed between an impeller (5) and a pump body (4). That device is composed of a seal ring (15), encircling the forward portion (9) of the impeller (5), which is accommodated in a seat (14) fonned on the pump body (4). The seat (14) has such dimensions as to allow radial movement of the ring (15) on its interior. Furthermore, there is provided a means (11) of allowing a pressure force to act on the sealing element (15) at least at a portion thereof facing the forward portion (9) of the impeller (5).
IPC 1-7
IPC 8 full level
F04D 29/16 (2006.01)
CPC (source: EP)
F04D 29/167 (2013.01)
Designated contracting state (EPC)
AT BE CH DE FR GB LI LU NL SE
DOCDB simple family (publication)
EP 0167837 A1 19860115; EP 0167837 B1 19890315; EP 0167837 B2 19960605; AT E41483 T1 19890415; DE 3568833 D1 19890420; IT 1180991 B 19870923; IT 8441591 A0 19840607; IT 8441591 A1 19851207
DOCDB simple family (application)
EP 85107012 A 19850605; AT 85107012 T 19850605; DE 3568833 T 19850605; IT 4159184 A 19840607