EP 1130262 A3 20020522 - Gear pump with flow capacity changing sliding unit
Title (en)
Gear pump with flow capacity changing sliding unit
Title (de)
Zahnradpumpe mit einer fördermengenverändernden Vershiebeeinheit
Title (fr)
Pompe à engrenages avec dispositif glissant pour changer le débit
Publication
Application
Priority
- DE 10043842 A 20000906
- DE 10010039 A 20000302
Abstract (en)
[origin: EP1130262A2] The pump has a displacement unit for varying the feed rate arranged between a first chamber (12) and a second chamber (14) with an additional coil spring acting on the displacement unit. The pressure chambers (12,14) interact hydraulically via a pressure line (16) containing a choke (15) and the second chamber (14) is limited to a maximum pressure.
IPC 1-7
IPC 8 full level
F04C 2/08 (2006.01); F04C 2/18 (2006.01); F04C 14/18 (2006.01)
CPC (source: EP)
F04C 2/088 (2013.01); F04C 2/18 (2013.01); F04C 14/185 (2013.01)
Citation (search report)
- [XY] DE 3347015 A1 19850704 - TEVES GMBH ALFRED [DE]
- [YA] DE 3528651 A1 19870219 - ROHS HANS GUENTHER PROF DR ING [DE]
- [Y] FR 1395842 A 19650416
- [A] GB 930913 A 19630710 - SERCK RADIATORS LTD
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 1130262 A2 20010905; EP 1130262 A3 20020522; EP 1130262 B1 20071219; AT E381675 T1 20080115; DE 50113387 D1 20080131
DOCDB simple family (application)
EP 01102128 A 20010201; AT 01102128 T 20010201; DE 50113387 T 20010201