Global Patent Index - EP 2357362 A3

EP 2357362 A3 20161123 - Gear ring pump

Title (en)

Gear ring pump

Title (de)

Zahnringpumpe

Title (fr)

Machine à engrenage d'anneau

Publication

EP 2357362 A3 20161123 (DE)

Application

EP 11000603 A 20110126

Priority

DE 102010008062 A 20100216

Abstract (en)

[origin: EP2357362A2] The annular gear pump has a pump housing formed of multiple housing portions and a wheel set (3) arranged in the housing. The wheel set is driven by a drive shaft. The wheel set consists of an externally-toothed inner rotor (4) and an internally toothed outer rotor (5). The inner rotor is rotatably connected with the drive shaft. A balance piston (13) guided in a balance piston guide (12) of the pump housing in an anti-rotational manner and lying against front wall sided on outer rotor of the wheel set is arranged in the pump housing adjacent to the wheel set in axial direction.

IPC 8 full level

F04C 2/10 (2006.01); F04C 15/06 (2006.01)

CPC (source: EP)

F01C 19/085 (2013.01); F01C 21/108 (2013.01); F04C 2/102 (2013.01); F04C 15/06 (2013.01); F01C 21/003 (2013.01)

Citation (search report)

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

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 2357362 A2 20110817; EP 2357362 A3 20161123; DE 102010008062 B3 20110622

DOCDB simple family (application)

EP 11000603 A 20110126; DE 102010008062 A 20100216