EP 1106826 A3 20030502 - Flow rate control with a positive displacement liquid pump
Title (en)
Flow rate control with a positive displacement liquid pump
Title (de)
Durchflussregelung mittels einer Flüssigkeitsverdrängerpumpe
Title (fr)
Régulation du débit avec une pompe volumétrique
Publication
Application
Priority
- JP 3439999 A 19990212
- JP 2000217926 A 20000718
Abstract (en)
[origin: EP1106826A2] A positive displacement liquid-delivery apparatus comprising a positive displacement pump 10 and a differential pressure control unit 42. The positive displacement pump 10 includes a liquid-delivery chamber 28 having a housing 22 with one part formed of a flexible diaphragm 24; and a diaphragm driver 36 linked to the diaphragm 24 for deforming the same to discharge fluid from the liquid-delivery chamber 28. The differential pressure control unit 42 uniformly controls the differential pressure inside and outside the diaphragm 24 during the pumping process. <IMAGE>
IPC 1-7
CPC (source: EP KR US)
F04B 13/00 (2013.01 - EP KR US); F04B 43/02 (2013.01 - EP KR US); F04B 2205/07 (2013.01 - EP)
Citation (search report)
- [XY] EP 0860608 A2 19980826 - EBARA CORP [JP]
- [XY] EP 0529334 A2 19930303 - MKS INSTR INC [US]
- [Y] WO 9923494 A1 19990514 - LANG APPARATEBAU GMBH [DE], et al
- [A] WO 9604409 A1 19960215 - HEHMANN FRANZ [DE], et al
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1106826 A2 20010613; EP 1106826 A3 20030502; EP 1106826 B1 20080507; EP 1106826 B9 20081224; DE 60038775 D1 20080619; JP 2001221163 A 20010817; JP 3844418 B2 20061115; KR 100710914 B1 20070427; KR 20010062048 A 20010707; TW 500822 B 20020901
DOCDB simple family (application)
EP 00126636 A 20001204; DE 60038775 T 20001204; JP 2000217926 A 20000718; KR 20000072337 A 20001201; TW 89125285 A 20001129