Global Patent Index - EP 1369498 B1

EP 1369498 B1 20041222 - Method and apparatus for high-speed flame spraying

Title (en)

Method and apparatus for high-speed flame spraying

Title (de)

Verfahren und Vorrichtung zum Hochgeschwindigkeits-Flammspritzen

Title (fr)

Procédé et appareil de dépôt par pulvérisation thermique à grand vitesse

Publication

EP 1369498 B1 20041222 (DE)

Application

EP 03011231 A 20030516

Priority

DE 10222660 A 20020522

Abstract (en)

[origin: DE10222660A1] For high speed flame spraying, the spray particles are accelerated in a flame spray of combustion gases. The powder tube (2) and the outer jet body (1) together form a Laval jet (5) to accelerate the flame spray to a speed up to 800 m/second, where the injection of the spray particles is axial and centrally in diverging sections of the jet structure. The Laval jet has a high pressure combustion chamber (3), with feed tubes (4) for the delivery of oxygen and a combustion gas e.g. propane, propylene, hydrogen, ethene and acetylene, or a kerosene.

IPC 1-7

C23C 4/12; B05B 7/20

IPC 8 full level

B05B 7/20 (2006.01); C23C 4/12 (2006.01)

CPC (source: EP US)

B05B 7/205 (2013.01 - EP US); C23C 4/129 (2016.01 - EP US)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

DOCDB simple family (publication)

EP 1369498 A1 20031210; EP 1369498 B1 20041222; AT E285483 T1 20050115; DE 10222660 A1 20031204; DE 50300212 D1 20050127; US 2004018317 A1 20040129; US 6972138 B2 20051206

DOCDB simple family (application)

EP 03011231 A 20030516; AT 03011231 T 20030516; DE 10222660 A 20020522; DE 50300212 T 20030516; US 44218503 A 20030521