EP 1444441 A1 20040811 - TEMPERING METHOD FOR A SCREW-TYPE VACUUM PUMP
Title (en)
TEMPERING METHOD FOR A SCREW-TYPE VACUUM PUMP
Title (de)
TEMPERIERUGSVERFAHREN EINER SCHRAUBENVAKUUMPUMPE
Title (fr)
PROCEDE DE MAINTIEN A LA TEMPERATURE VOULUE D'UNE POMPE A VIDE A VIS
Publication
Application
Priority
- DE 10156179 A 20011115
- EP 0212087 W 20021030
Abstract (en)
[origin: WO03042542A1] The invention relates to a method for tempering a screw-type vacuum pump (1) wherein the characteristics of the pump are not substantially altered when the pump is subjected to thermal stress. In order to achieve said aim, the cooling is adjusted according to the operating state of the screw-type vacuum pump (1), preferably according to a substantially constant pump gap (4).
IPC 1-7
IPC 8 full level
F04C 18/08 (2006.01); F04C 18/16 (2006.01); F04C 23/00 (2006.01); F04C 28/00 (2006.01); F04C 29/04 (2006.01); F04C 25/02 (2006.01)
CPC (source: EP KR US)
F04C 18/086 (2013.01 - EP US); F04C 18/16 (2013.01 - EP KR US); F04C 23/00 (2013.01 - EP US); F04C 25/02 (2013.01 - EP); F04C 28/00 (2013.01 - EP US); F04C 29/04 (2013.01 - EP US); F04C 29/045 (2013.01 - EP US); F04C 2270/19 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR
DOCDB simple family (publication)
WO 03042542 A1 20030522; CA 2463957 A1 20030522; CN 100487249 C 20090513; CN 101532492 A 20090916; CN 101532492 B 20120704; CN 1585859 A 20050223; DE 10156179 A1 20030528; EP 1444441 A1 20040811; HU P0402362 A2 20050228; JP 2005509786 A 20050414; JP 4288169 B2 20090701; KR 100936555 B1 20100112; KR 20050042066 A 20050504; PL 206102 B1 20100730; PL 369534 A1 20050502; TW 200300481 A 20030601; TW I262248 B 20060921; US 2005019169 A1 20050127; US 7232295 B2 20070619
DOCDB simple family (application)
EP 0212087 W 20021030; CA 2463957 A 20021030; CN 02822587 A 20021030; CN 200910129838 A 20021030; DE 10156179 A 20011115; EP 02790311 A 20021030; HU P0402362 A 20021030; JP 2003544340 A 20021030; KR 20047007382 A 20021030; PL 36953402 A 20021030; TW 91133360 A 20021114; US 49583404 A 20040514