EP 1764504 A1 20070321 - Electro-magnetically driven dosing pump
Title (en)
Electro-magnetically driven dosing pump
Title (de)
Elektromagnetisch betreibbare Dosierpumpe
Title (fr)
Pompe à dosage activé par force electro-magnétique
Publication
Application
Priority
DE 102005044904 A 20050914
Abstract (en)
The pump has a movable differential piston (52) and plate and ball valves (58, 59), where the valve (59) is opened and closed during forward and backward motions of the piston, respectively. A part of the piston pushes the displaced volume of fuel through a discharge opening (61) and another part of the piston sucks the displaced volume of fuel through the suction-sided valve, such that the same volume of fuel is pumped during forward and backward motions of the piston or rotor. The valves are provided with different characteristic frequencies.
IPC 8 full level
F04B 13/00 (2006.01); F04B 17/04 (2006.01); F04B 53/12 (2006.01)
CPC (source: EP)
F04B 17/044 (2013.01)
Citation (search report)
- [X] US 2005047941 A1 20050303 - HUMBURG MICHAEL [DE]
- [X] US 3479959 A 19691125 - CHRISTENSEN WILLIAM N
- [X] DE 2410768 A1 19750918 - DANFOSS AS
- [A] DE 2017680 A1 19711028 - SWF
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK YU
DOCDB simple family (publication)
EP 1764504 A1 20070321; DE 102005044904 A1 20070315; DE 102005044904 B4 20091203
DOCDB simple family (application)
EP 06090168 A 20060913; DE 102005044904 A 20050914