EP 3850219 A1 20210721 - SELF-PRIMING CENTRIFUGAL PUMP
Title (en)
SELF-PRIMING CENTRIFUGAL PUMP
Title (de)
SELBSTENTLÜFTENDE ZENTRIFUGALPUMPE
Title (fr)
POMPE CENTRIFUGE AUTO-AMORÇANTE
Publication
Application
Priority
- IT 201800008547 A 20180912
- IT 2019050168 W 20190718
Abstract (en)
[origin: WO2020053906A1] The self-priming centrifugal pump comprises a pump body (10) having an inner cavity (11 ) having a longitudinal axis (A) arranged in a horizontal position in use configuration which divides said inner cavity (11) into an upper zone (S) and a lower zone (I); a suction opening (12) made on a front surface (13) of said pump body (10) at said upper zone (S); a pumping chamber (20) associated with said pump body (10) and having at a frontal part thereof an axial inlet opening (21); an impeller group (22) arranged inside said pumping chamber (20); an ejector group (30) which extends into said inner cavity (11) of the pump body (10) and comprises an ejection nozzle (31) and an suction conduit (32) shaping a divergent profile, connected, at the wider section thereof to the inlet opening (21) of the pumping chamber (20); an auxiliary suction conduit (34) arranged inside said inner cavity (11 ) of the pump body (10), at said upper zone (S), and adapted to put said suction opening (12) in direct communication with said inlet opening (21) of the pumping chamber (20).
IPC 8 full level
F04D 9/06 (2006.01); F04D 15/00 (2006.01)
CPC (source: EP)
F04D 9/06 (2013.01); F04D 15/0005 (2013.01)
Citation (search report)
See references of WO 2020053906A1
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)
WO 2020053906 A1 20200319; CN 112703320 A 20210423; CN 112703320 B 20230228; EC SP21021418 A 20210730; EP 3850219 A1 20210721; EP 3850219 B1 20220907; MX 2021003000 A 20210527; PH 12021550536 A1 20220214
DOCDB simple family (application)
IT 2019050168 W 20190718; CN 201980059728 A 20190718; EC DI202121418 A 20210326; EP 19765816 A 20190718; MX 2021003000 A 20190718; PH 12021550536 A 20210311