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EP 0979947 A2 20000216 - Turbomolecular pump

Title (en)

Turbomolecular pump

Title (de)

Turbomolekularpumpe

Title (fr)

Pompe turbomoléculair

Publication

EP 0979947 A2 20000216 (EN)

Application

EP 99306359 A 19990811

Priority

JP 22792298 A 19980812

Abstract (en)

A turbomolecular pump is provided in which the structure of a stator blade (20) is improved for cooling rotor blades (2), thereby achieving a higher thermal conduction efficiency. The arrangement provides contact surfaces of the stator blades (20) and stator blade spacers (22) to be engaged/crushed upon assembling the pump. <IMAGE> <IMAGE>

IPC 1-7

F04D 19/04; F04D 29/58

IPC 8 full level

F04D 29/00 (2006.01); F04D 19/04 (2006.01); F04D 29/58 (2006.01)

CPC (source: EP KR)

F04D 19/042 (2013.01 - EP); F04D 29/00 (2013.01 - KR); F04D 29/542 (2013.01 - EP); F04D 29/5853 (2013.01 - EP)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 0979947 A2 20000216; EP 0979947 A3 20010328; JP 2000064986 A 20000303; KR 20000017282 A 20000325

DOCDB simple family (application)

EP 99306359 A 19990811; JP 22792298 A 19980812; KR 19990033123 A 19990812