Global Patent Index - EP 2475889 A2

EP 2475889 A2 20120718 - ROTARY PISTON PUMP

Title (en)

ROTARY PISTON PUMP

Title (de)

DREHKOLBENPUMPE

Title (fr)

POMPE À PISTONS ROTATIFS

Publication

EP 2475889 A2 20120718 (DE)

Application

EP 10750126 A 20100908

Priority

  • DE 202009012158 U 20090908
  • EP 2010063179 W 20100908

Abstract (en)

[origin: WO2011029847A2] The invention relates to a rotary piston pump for delivering a fluid medium comprising a solid, having two rotary pistons with rotary piston vanes engaging with each other, each having a rotary axis and an outer circumference, wherein the rotary axes of the two rotary pistons are disposed at a distance from each other and parallel to each other, and the outer circumferences of the two rotary pistons partially overlap each other, and a housing having an inlet opening and an outlet opening and an inner and an outer wall, wherein the inner wall of the housing encloses one segment each of the outer circumferences of the rotary pistons, and wherein the rotary piston pump is designed for delivering the medium in a delivery direction from the inlet to the outlet opening. According to the invention, the rotary piston pump is characterized in that the outlet opening at the inner wall of the housing comprises a maximum discharge opening greater than the distance between the rotary axes in a direction parallel to the plane of the rotary axes and perpendicular to the rotary axes.

IPC 8 full level

F04C 2/08 (2006.01); F04C 2/12 (2006.01); F04C 13/00 (2006.01)

CPC (source: EP US)

F04C 2/086 (2013.01 - EP US); F04C 2/126 (2013.01 - EP US); F04C 13/001 (2013.01 - EP US); F04C 2210/24 (2013.01 - EP US); F04C 2250/102 (2013.01 - EP US)

Citation (search report)

See references of WO 2011029847A2

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 SE SI SK SM TR

Designated extension state (EPC)

BA ME RS

DOCDB simple family (publication)

DE 202009012158 U1 20110203; BR 112012005192 A2 20160308; BR 112012005192 B1 20200818; CN 102625880 A 20120801; CN 102625880 B 20160113; DK 2475889 T3 20170731; EP 2475889 A2 20120718; EP 2475889 B1 20170531; ES 2634691 T3 20170928; JP 2013504010 A 20130204; JP 2015078700 A 20150423; JP 6029696 B2 20161124; PL 2475889 T3 20171031; PT 2475889 T 20170823; SI 2475889 T1 20171030; US 2012207638 A1 20120816; US 9732749 B2 20170815; WO 2011029847 A2 20110317; WO 2011029847 A3 20120315

DOCDB simple family (application)

DE 202009012158 U 20090908; BR 112012005192 A 20100908; CN 201080039875 A 20100908; DK 10750126 T 20100908; EP 10750126 A 20100908; EP 2010063179 W 20100908; ES 10750126 T 20100908; JP 2012528350 A 20100908; JP 2015011736 A 20150123; PL 10750126 T 20100908; PT 10750126 T 20100908; SI 201031527 T 20100908; US 201013391683 A 20100908