EP 1175563 A1 20020130 - MEMBRANE PUMP COMPRISING AN INLET OPENING THAT IS CONTROLLED BY THE MEMBRANE
Title (en)
MEMBRANE PUMP COMPRISING AN INLET OPENING THAT IS CONTROLLED BY THE MEMBRANE
Title (de)
MEMBRANPUMPE MIT EINER DURCH DIE MEMBRANE GESTEUERTEN EINLASSÖFFNUNG
Title (fr)
POMPE A MEMBRANE COMPORTANT UN ORIFICE D'ADMISSION REGLE PAR LA MEMBRANE
Publication
Application
Priority
- DE 19919908 A 19990430
- EP 0003857 W 20000428
Abstract (en)
[origin: US6776591B1] A membrane pump (1) having a membrane (24) which can be actuated by a crank drive (32), which membrane bounds, together with a concave pump body surface (8), a pump chamber (38), an inlet channel (4) and an outlet channel (17) which open out at an inlet opening (9) and an outlet opening (20) in the pump body surface (8), the membrane (24) having a membrane core (25) and an elastically deformable membrane ring (26) and the membrane core (26) having a convex surface adapted to the pump body surface (8). The inlet opening (9) is arranged in the region of the pump body surface (8) which the membrane (24) first approaches upon an expulsion stroke of the crank drive (32), and the elastically deformable membrane ring (26) closes the inlet opening (9) before the attainment of top dead center of the crank drive (32).
IPC 1-7
IPC 8 full level
F04B 43/00 (2006.01); F04B 43/02 (2006.01); F04B 45/04 (2006.01)
CPC (source: EP US)
F04B 43/028 (2013.01 - EP US)
Citation (search report)
See references of WO 0066891A1
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)
US 6776591 B1 20040817; AT E255682 T1 20031215; DE 19919908 A1 20001123; DE 19919908 B4 20040923; DE 50004653 D1 20040115; EP 1175563 A1 20020130; EP 1175563 B1 20031203; WO 0066891 A1 20001109
DOCDB simple family (application)
US 1859602 A 20020314; AT 00931084 T 20000428; DE 19919908 A 19990430; DE 50004653 T 20000428; EP 0003857 W 20000428; EP 00931084 A 20000428