EP 3091235 B1 20200311 - ROTOR DISC
Title (en)
ROTOR DISC
Title (de)
ROTORSCHEIBE
Title (fr)
DISQUE DE ROTOR
Publication
Application
Priority
EP 15166269 A 20150504
Abstract (en)
[origin: JP2016211535A] PROBLEM TO BE SOLVED: To easily manufacture a rotor disc for a rotor of a vacuum pump.SOLUTION: In a rotor disc (12) for a rotor of a vacuum pump, in particular, a turbo molecular pump (10), composed of a plurality of independent rotor discs (12) disposed while overlapped to each other on a rotor shaft (14) or an independent one rotor disc disposed on the rotor shaft (14), the rotor disc (12) has a plurality of blades (16) distributed in a circumferential direction. In the rotor disc (12), these blades respectively have a thickness profile transited from an inner side toward an outer side in a radial direction, and at least one blade (16) has the thickness profile having at least one stage (22) separating two parts (18, 20) of the blade (16).SELECTED DRAWING: Figure 1
IPC 8 full level
F04D 19/04 (2006.01); F04D 29/32 (2006.01)
CPC (source: EP)
F04D 19/042 (2013.01); F04D 29/324 (2013.01)
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)
EP 3091235 A1 20161109; EP 3091235 B1 20200311; JP 2016211535 A 20161215; JP 6148717 B2 20170614
DOCDB simple family (application)
EP 15166269 A 20150504; JP 2015249770 A 20151222