Global Patent Index - EP 2295813 A3

EP 2295813 A3 20150819 - Turbomolecular pump rotor

Title (en)

Turbomolecular pump rotor

Title (de)

Turbomolekularpumpenrotor

Title (fr)

Rotor de pompe turbo-moléculaire

Publication

EP 2295813 A3 20150819 (DE)

Application

EP 10007376 A 20100716

Priority

DE 102009035812 A 20090801

Abstract (en)

[origin: JP2011033027A] <P>PROBLEM TO BE SOLVED: To avoid risks that a rotor body is destroyed and energy accumulated therein is rapidly discharged to a housing, so-called an explosion. <P>SOLUTION: A shaft supports a first rotor structure 101, and the first rotor structure includes a rotor blade ring 119 and a blade 123. Moreover, the first rotor structure 101 supports a rotor sleeve 124 and includes a recess 130. The recess 130 extends in an axial direction and a radial direction to form a hollow space. A size of a fragment is reduced and a destruction process is extended while including the recess extending in the axial direction and existing at a radial direction inside, namely the recess extending in the radial direction from a symmetric rotation axis line so as to from the hollow space. <P>COPYRIGHT: (C)2011,JPO&INPIT

IPC 8 full level

F04D 19/04 (2006.01); F04D 27/00 (2006.01)

CPC (source: EP)

F04D 19/042 (2013.01); F04D 29/321 (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 SE SI SK SM TR

Designated extension state (EPC)

BA ME RS

DOCDB simple family (publication)

DE 102009035812 A1 20110203; EP 2295813 A2 20110316; EP 2295813 A3 20150819; EP 2295813 B1 20190918; JP 2011033027 A 20110217

DOCDB simple family (application)

DE 102009035812 A 20090801; EP 10007376 A 20100716; JP 2010167827 A 20100727