EP 0212728 A1 19870304 - Pump device.
Title (en)
Pump device.
Title (de)
Pumpeinrichtung.
Title (fr)
Dispositif de pompage.
Publication
Application
Priority
NL 8502193 A 19850806
Abstract (en)
Three cylinder pump (1,2,3) device having displacer members (5,6,7) driven by hydraulic cylinders (22-24) and a control mechanism (31) programmed to ensure constant values for suction as well as delivery of the device, the control mechanism (31) comprising a position recorder (36,38) for the displacer members (8-10).
IPC 1-7
IPC 8 full level
F04B 7/00 (2006.01); F04B 9/10 (2006.01); F04B 9/117 (2006.01); F04B 11/00 (2006.01)
CPC (source: EP)
F04B 7/00 (2013.01); F04B 9/1172 (2013.01); F04B 11/00 (2013.01); F04B 11/005 (2013.01); F04B 11/0058 (2013.01)
Citation (search report)
- [X] US 4527954 A 19850709 - MURALI BEEGAMUDRE N [US], et al
- [A] DE 1500511 B2 19721102
- [X] PATENTS ABSTRACTS OF JAPAN, vol. 8, no. 224, 13th October 1984, page 55 M 331; & JP-A-59 105 977 (HITACHI SEISAKUSHO K.K.) 19-06-1984
- [Y] PATENTS ABSTRACTS OF JAPAN, vol. 8, no. 132, 20th June 1984, page 35 M 303; & JP-A-59 32 681 (HITACHI SEISAKUSHO K.K.) 22-02-1984
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0212728 A1 19870304; EP 0212728 B1 19900808; AT E55450 T1 19900815; DE 3673285 D1 19900913; NL 8502193 A 19870302
DOCDB simple family (application)
EP 86201340 A 19860730; AT 86201340 T 19860730; DE 3673285 T 19860730; NL 8502193 A 19850806