EP 3371458 B1 20191204 - DRY VACUUM PUMP
Title (en)
DRY VACUUM PUMP
Title (de)
TROCKENVAKUUMPUMPE
Title (fr)
POMPE À VIDE SÈCHE
Publication
Application
Priority
- DE 202015007606 U 20151103
- EP 2016076223 W 20161031
Abstract (en)
[origin: WO2017076803A1] The invention relates to a dry vacuum pump, comprising a pump housing, which forms a plurality of suction chambers, wherein rotor elements are arranged in the suction chambers, in order to convey a pump medium from a high-vacuum-side inlet to an outlet. At least one rotor element is arranged in each suction chamber. The rotor elements are connected to a rotor shaft. The rotor shaft is supported by bearings, wherein a high-vacuum-side bearing is arranged in a cut-out. A sealing device is arranged between the high-vacuum-side bearing and at least one suction chamber adjacent to the high-vacuum-side bearing. The cut-out is connected, by means of a first channel, to a region of the dry vacuum pump in which there is a higher pressure than in at least one suction chamber adjacent to the high-vacuum-side bearing.
IPC 8 full level
F04C 25/02 (2006.01); F04C 27/00 (2006.01)
CPC (source: EP KR US)
F04C 18/126 (2013.01 - EP); F04C 25/02 (2013.01 - EP KR US); F04C 27/009 (2013.01 - EP KR US); F04C 18/16 (2013.01 - EP); F04C 2220/12 (2013.01 - EP KR US); F04C 2240/50 (2013.01 - EP KR US)
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 202015007606 U1 20170206; CN 108431422 A 20180821; CN 108431422 B 20190723; EP 3371458 A1 20180912; EP 3371458 B1 20191204; JP 2018532943 A 20181108; KR 20180070704 A 20180626; MY 193264 A 20220929; US 10851783 B2 20201201; US 2018340535 A1 20181129; WO 2017076803 A1 20170511
DOCDB simple family (application)
DE 202015007606 U 20151103; CN 201680063046 A 20161031; EP 16790952 A 20161031; EP 2016076223 W 20161031; JP 2018522757 A 20161031; KR 20187015760 A 20161031; MY PI2018701632 A 20161031; US 201615771776 A 20161031