EP 1887222 A1 20080213 - Improvement for radial piston pumps
Title (en)
Improvement for radial piston pumps
Title (de)
Verbesserung von Radialkolbenpumpen
Title (fr)
Perfectionnement aux pompes à barillet
Publication
Application
Priority
FR 0606863 A 20060726
Abstract (en)
The pump has bores (2a, 2b) communicate with a supply duct by ducts emptying into a chamber that is located behind a spring barrel (1). A conveyor collector (9) is equipped with a cup that communicates with a conveyor duct. The collector is eccentric relative to the axis of the spring barrel, such that each of the ducts empties into the chamber during a half-turn. The collector is balanced hydrostatically by pressure, and resting against the rear surface of the spring barrel.
Abstract (fr)
Pompe à barillet caractérisée par le fait que les alésages (2) dans lesquels se déplacent les pistons (4) sont ménagés à travers le barillet (1) diamétralement à son axe (XX).
IPC 8 full level
F04B 1/107 (2006.01); F04B 1/047 (2006.01)
CPC (source: EP US)
F04B 1/0472 (2013.01 - EP US); F04B 1/1072 (2013.01 - EP US)
Citation (search report)
- [A] DE 19504380 A1 19960711 - LINEAR ANSTALT [LI]
- [A] GB 2014648 A 19790830 - LUCAS INDUSTRIES LTD
- [A] FR 2588616 A1 19870417 - POCLAIN HYDRAULICS SA [FR]
- [A] FR 2190172 A5 19740125 - HYDROSTATIC TRANSMISSIONS LTD [GB]
- [A] FR 2365041 A1 19780414 - POCLAIN HYDRAULICS SA [FR]
Designated contracting state (EPC)
CH DE FR IT LI
Designated extension state (EPC)
AL BA HR MK YU
DOCDB simple family (publication)
EP 1887222 A1 20080213; EP 1887222 B1 20091028; DE 602007002954 D1 20091210; FR 2904380 A1 20080201; US 2008025850 A1 20080131
DOCDB simple family (application)
EP 07290798 A 20070627; DE 602007002954 T 20070627; FR 0606863 A 20060726; US 87868807 A 20070726