EP 1964645 B1 20090826 - Method and device for treating a duct opening, in particular in a fuel injector
Title (en)
Method and device for treating a duct opening, in particular in a fuel injector
Title (de)
Verfahren und Vorrichtung zum Bearbeiten einer Durchgangsöffnung, insbesondere in einem Kraftstoffinjektor
Title (fr)
Procédé et dispositif destinés au traitement d'une ouverture de passage, en particulier dans un injecteur de carburant
Publication
Application
Priority
EP 07004283 A 20070301
Abstract (en)
[origin: EP1964645A1] A method for producing precision bores, especially for fuel injector jets has the blank with an initial bore subjected to an abrasive fluid to provide a rough bore. This is subsequently worked by a less abrasive fluid with lower viscosity. The initial abrasion process (1) is followed by a washing stage (2) and a measuring stage (3) to determine how much more material needs to be removed by a fine abrasion stage (4), which is followed by a second washing stage (5) and a measuring stage (6). The jets are processed in a sequence on a linear feed.
IPC 8 full level
B24B 31/116 (2006.01)
CPC (source: EP)
B24B 31/116 (2013.01)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 1964645 A1 20080903; EP 1964645 B1 20090826; DE 502007001397 D1 20091008; WO 2008104243 A1 20080904
DOCDB simple family (application)
EP 07004283 A 20070301; DE 502007001397 T 20070301; EP 2008000075 W 20080108