EP 2510239 A2 20121017 - EXTERNAL GEAR PUMP
Title (en)
EXTERNAL GEAR PUMP
Title (de)
AUßENZAHNRADPUMPE
Title (fr)
POMPE À ENGRENAGES EXTÉRIEURS
Publication
Application
Priority
- DE 102009047610 A 20091208
- EP 2010065181 W 20101011
Abstract (en)
[origin: WO2011069713A2] An external gear pump (14) comprises two rotatable gear wheels (100, 102) that mesh with each other. According to the invention, at least one gear wheel (100) is mounted, in relation to the rotational axis (132) thereof, in the radial direction by the contact of tooth tips (162) directed radially outward with a mounting surface (136) located radially outward. The operating behavior and efficiency of the external gear pump (14) according to the invention are improved by optimized guidance of the liquid to be delivered both on the suction side and on the pressure side by means of openings (170, 174) and channels (172, 176).
IPC 8 full level
F04C 2/08 (2006.01); F04C 2/18 (2006.01); F04C 15/06 (2006.01)
CPC (source: EP)
F01C 21/106 (2013.01); F04C 2/086 (2013.01); F04C 2/18 (2013.01); F04C 15/06 (2013.01); F04C 2240/30 (2013.01); F04C 2240/70 (2013.01); F04C 2270/044 (2013.01)
Citation (search report)
See references of WO 2011069713A2
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
DE 102009047610 A1 20110609; CN 102648350 A 20120822; CN 102648350 B 20150819; EP 2510239 A2 20121017; WO 2011069713 A2 20110616; WO 2011069713 A3 20111013
DOCDB simple family (application)
DE 102009047610 A 20091208; CN 201080055661 A 20101011; EP 10765426 A 20101011; EP 2010065181 W 20101011