EP 2602428 A1 20130612 - Rotary positive displacement pump with fixed shafts and rotating sleeves
Title (en)
Rotary positive displacement pump with fixed shafts and rotating sleeves
Title (de)
Verdrängerpumpe mit festen Bolzen und Drehhülsen
Title (fr)
Pompe rotative à déplacement positif dotée d'arbres fixes et de manchons rotatifs
Publication
Application
Priority
EP 11192568 A 20111208
Abstract (en)
A rotary positive displacement pump comprising a pump housing (2) that has a rotor casing (4) with an inlet (401) and an outlet (402), wherein a first rotor (6) and a second rotor (7) are arranged in the rotor casing (4) for effecting pumping of a liquid. A first shaft (16) is fixedly connected to the pump housing (2), a first shaft sleeve (14) is rotatably arranged on the first shaft (16), a first gear (18) is connected to the first shaft sleeve (14) and the first rotor (6) is connected to the first shaft sleeve (14). The pump has a corresponding second shaft (17), second shaft sleeve (15) and second gear (19). The second rotor (7) is connected to the second shaft sleeve (15) and the second gear (19) is in mesh with the first gear (18), for effecting simultaneous rotation of the rotors (6, 7).
IPC 8 full level
F01C 17/02 (2006.01); F01C 21/02 (2006.01); F04C 2/12 (2006.01); F04C 15/00 (2006.01)
CPC (source: EP)
F01C 17/02 (2013.01); F01C 21/02 (2013.01); F04C 2/12 (2013.01); F04C 15/0061 (2013.01); F04C 15/0038 (2013.01); F04C 15/0073 (2013.01); F04C 2240/60 (2013.01); F04C 2240/605 (2013.01)
Citation (applicant)
US 6095781 A 20000801 - PETERSEN JOHN EDWIN [US], et al
Citation (search report)
- [XYI] EP 0666422 A1 19950809 - GUTEHOFFNUNGSHUETTE MAN [DE] & US 5599176 A 19970204 - REINERSMANN HANS-HERMANN [DE]
- [XYI] US 4490102 A 19841225 - CARRE JEAN-JACQUES [FR], et al
- [Y] US 2880676 A 19590407 - LOUISE SUCCOP ANNA
- [A] US 2868442 A 19590113 - ROBERT NILSSON HANS
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 2602428 A1 20130612; EP 2602428 B1 20180425; DK 2602428 T3 20180730; WO 2013083740 A2 20130613; WO 2013083740 A3 20131121
DOCDB simple family (application)
EP 11192568 A 20111208; DK 11192568 T 20111208; EP 2012074727 W 20121207