Global Patent Index - EP 1833622 B2

EP 1833622 B2 20130821 - METHOD FOR CLEANING A VACUUM SCREW-TYPE PUMP

Title (en)

METHOD FOR CLEANING A VACUUM SCREW-TYPE PUMP

Title (de)

VERFAHREN ZUM REINIGEN EINER VAKUUM-SCHRAUBENPUMPE

Title (fr)

PROCEDE DE NETTOYAGE D'UNE POMPE A VIDE A VIS

Publication

EP 1833622 B2 20130821 (DE)

Application

EP 05815780 A 20051205

Priority

  • EP 2005056489 W 20051205
  • DE 102004063058 A 20041222

Abstract (en)

[origin: WO2006067032A1] The invention relates to a method for cleaning a dry, compressed vacuum screw-type pump comprising an inner compression. The cleaning method consists of the following steps: the screw-type pump (12) is driven at a nominal speed, a cleaning fluid consisting of rinsing fluid and a rinsing gas is mixed in a volume ratio of at least 1:10, and the cleaning fluid is introduced into the gas inlet (16) of the screw-type pump (12). According to the cleaning method, a dry, compressed vacuum-screw-type pump comprising an inner compression can be regularly cleaned in a simple manner.

IPC 8 full level

B08B 9/00 (2006.01); F04C 29/00 (2006.01)

CPC (source: EP KR US)

B08B 9/00 (2013.01 - EP KR US); F04C 18/16 (2013.01 - KR); F04C 29/0092 (2013.01 - EP US)

Citation (opposition)

Opponent :

Designated contracting state (EPC)

CH DE FR GB IT LI

DOCDB simple family (publication)

WO 2006067032 A1 20060629; DE 102004063058 A1 20060713; DE 502005009881 D1 20100819; EP 1833622 A1 20070919; EP 1833622 B1 20100707; EP 1833622 B2 20130821; EP 1833622 B8 20100811; JP 2008524511 A 20080710; JP 4819828 B2 20111124; KR 101280493 B1 20130701; KR 20070086062 A 20070827; US 2008135066 A1 20080612

DOCDB simple family (application)

EP 2005056489 W 20051205; DE 102004063058 A 20041222; DE 502005009881 T 20051205; EP 05815780 A 20051205; JP 2007547437 A 20051205; KR 20077013187 A 20051205; US 79363105 A 20051205