EP 2025937 A1 20090218 - Reciprocating pump
Title (en)
Reciprocating pump
Title (de)
Kolbenpumpe
Title (fr)
Pompe alternative
Publication
Application
Priority
EP 07425514 A 20070807
Abstract (en)
A reciprocating pump (1) comprising a pumping chamber (30) and an intermediate chamber (40), a reciprocating member (50), high pressure seal means (21) between the pumping chamber (30) and the intermediate chamber (40), low pressure seal means (22) between the intermediate chamber (40) and the crankshaft housing (10), a pumping circuit (60) and an auxiliary circuit (70) in fluid separation from the pumping circuit (60). The pump further comprises a recirculating unit (80) whose inlet is connected to the delivery chamber (72) of the auxiliary circuit (70) and whose outlet is connected to the suction chamber (71) of the auxiliary circuit (70). The recirculating unit (80) comprises a recirculating pump (81) which is designed to suck fluid from the delivery chamber (72) and pump such fluid in the suction chamber (71) for fluid recirculating in the auxiliary circuit (70).
IPC 8 full level
F04B 53/08 (2006.01)
CPC (source: EP)
F04B 5/00 (2013.01); F04B 53/08 (2013.01); F04B 53/164 (2013.01); F04B 53/18 (2013.01)
Citation (applicant)
- EP 0976993 A2 20000202 - EMBRACO EUROP SRL [IT]
- US 3379033 A 19680423 - GRANT WHITNEY I
Citation (search report)
- [YD] US 2006140778 A1 20060629 - WARREN LESLIE J [GB]
- [Y] EP 0976993 A2 20000202 - EMBRACO EUROP SRL [IT]
- [Y] US 3379033 A 19680423 - GRANT WHITNEY I
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 MT NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
EP 2025937 A1 20090218; EP 2025937 B1 20100623; AT E472058 T1 20100715; DE 602007007325 D1 20100805
DOCDB simple family (application)
EP 07425514 A 20070807; AT 07425514 T 20070807; DE 602007007325 T 20070807