EP 1364126 A1 20031126 - INTERNAL GEAR PUMP THAT DOES NOT CONTAIN ANY FILLER ELEMENTS
Title (en)
INTERNAL GEAR PUMP THAT DOES NOT CONTAIN ANY FILLER ELEMENTS
Title (de)
FÜLLSTÜCKLOSE INNENZAHNRADPUMPE
Title (fr)
POMPE A ENGRENAGES INTERIEURS SANS PIECES INTERCALAIRES
Publication
Application
Priority
- DE 0200709 W 20020228
- DE 10109769 A 20010301
Abstract (en)
[origin: WO02070898A1] An internal gear pump that does not contain any filler elements comprises a housing (1) and a bearing ring (5), which is accommodated inside a recess (13) of the housing in a manner that permits it to transversally move in relation to its axis but not to rotate. The internal gear pump also comprises an internal-geared ring gear (3), which is mounted inside the bearing ring in a manner that permits it to revolve, and a pinion (2), which is mounted inside the housing in a manner that permits it to rotate and which meshes with said ring gear. The inner peripheral surface of the housing recess (13) coaxially extends in relation to the pinion (2), and the bearing ring, which is eccentrically arranged with regard to the pinion axis (15), can pivot in relation to the housing recess about a parallel pivotal axis (22, 23) that is parallel to the axis thereof. The bearing ring can pivot without the tight contact between the tooth tips of the pinion (2) and ring gear (3) being lost. The inner peripheral surface of the bearing ring (5) that forms the bearing surface for the ring gear (3) coaxially extends in relation to its outer peripheral surface (20), and the pivotal path of the bearing ring is delimited to a pre-designated measure by a pin (25), which passes therethrough or which is arranged in the sickle-shaped gap (21), or by a projecting step located inside this gap.
IPC 1-7
IPC 8 full level
F04C 2/10 (2006.01); F04C 14/18 (2006.01)
CPC (source: EP KR US)
F04C 2/10 (2013.01 - KR); F04C 2/102 (2013.01 - EP US)
Citation (search report)
See references of WO 02070898A1
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)
WO 02070898 A1 20020912; DE 10109769 A1 20020905; EP 1364126 A1 20031126; JP 2004518866 A 20040624; KR 20030011826 A 20030211; US 2003161748 A1 20030828
DOCDB simple family (application)
DE 0200709 W 20020228; DE 10109769 A 20010301; EP 02714072 A 20020228; JP 2002569585 A 20020228; KR 20027013882 A 20021017; US 27501302 A 20021030