EP 1138948 A2 20011004 - Cooling apparatus for vacuum pump
Title (en)
Cooling apparatus for vacuum pump
Title (de)
Kühlvorrichtung für eine Vakuumpumpe
Title (fr)
Appareil de refroidissement pour une pompe à vide
Publication
Application
Priority
JP 2000085889 A 20000327
Abstract (en)
A cooling apparatus, for cooling a vacuum pump, in which a cooler 44 is arranged on a rotor housing 12, a cooler 45 is arranged on a rear housing 14 and a drive unit 33, a cooler 46 is arranged on a controller 37, a cooler 47 is arranged on an inverter 38, and a cooler 48 is mounted on the peripheral surface of an electric motor M is disclosed. The coolers 46, 47, 48 are arranged midway in a main supply pipe 49. The coolers 44, 45, on the other hand, are arranged midway in a subsidiary supply pipe 50. The energization and deenergization of an electromagnetic three-way valve 51 arranged at the diverging point of the main supply pipe 49 and the subsidiary supply pipe 50 is controlled by the controller 37. <IMAGE>
IPC 1-7
IPC 8 full level
F04B 39/06 (2006.01); F04C 23/00 (2006.01); F04C 25/02 (2006.01); F04C 29/04 (2006.01)
CPC (source: EP KR US)
F04C 25/02 (2013.01 - KR); F04C 29/04 (2013.01 - EP US); F04C 25/02 (2013.01 - EP US); F04C 2240/403 (2013.01 - EP US); F04C 2270/19 (2013.01 - EP US)
Citation (applicant)
JP H05118290 A 19930514 - EBARA CORP
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1138948 A2 20011004; EP 1138948 A3 20020703; JP 2001271777 A 20011005; KR 20010090710 A 20011019; US 2001024617 A1 20010927
DOCDB simple family (application)
EP 01106165 A 20010313; JP 2000085889 A 20000327; KR 20010001655 A 20010111; US 80562201 A 20010314