EP 0427591 B1 19941130 - Plasma torch with non-cooled plasma gas injection.
Title (en)
Plasma torch with non-cooled plasma gas injection.
Title (de)
Plasmabrenner mit nicht gekühlter Plasmagasinjektion.
Title (fr)
Torche à plasma à injection non refroidie de gaz plasmogène.
Publication
Application
Priority
FR 8914676 A 19891108
Abstract (en)
[origin: EP0427591A1] The present invention relates to a plasma torch of the type comprising: - two tubular and coaxial electrodes (5 and 6), one a continuation of the other, each of them being arranged in a holder (3 and 4) in which there is provision for a cooling circuit (8 and 9) for the corresponding electrode; - means (12) for producing an initiating of an electric arc between the two electrodes, and, - means (16) for injecting a plasma-forming gas between said electrodes, comprising a component of revolution (17) coaxial with the said electrodes and defining with the latter and their holders a chamber (18) in which, by virtue of transverse orifices (17B) made in the component, the plasma-forming gas is injected. According to the invention, the said component of revolution (17) is devoid of internal means of cooling. <IMAGE>
IPC 1-7
IPC 8 full level
B23K 10/00 (2006.01); H05H 1/34 (2006.01); H05H 1/28 (2006.01)
CPC (source: EP KR US)
H05H 1/26 (2013.01 - KR); H05H 1/34 (2013.01 - EP KR US); H05H 1/341 (2013.01 - EP); H05H 1/3421 (2021.05 - EP); H05H 1/3431 (2021.05 - EP); H05H 1/28 (2013.01 - EP)
Designated contracting state (EPC)
AT BE CH DE DK ES GB IT LI NL SE
DOCDB simple family (publication)
EP 0427591 A1 19910515; EP 0427591 B1 19941130; AT E114928 T1 19941215; CA 2029505 A1 19910509; CA 2029505 C 20000815; DE 69014561 D1 19950112; DE 69014561 T2 19950406; DK 0427591 T3 19950227; ES 2067000 T3 19950316; FR 2654293 A1 19910510; FR 2654293 B1 19960524; JP 3006771 B2 20000207; JP H03173099 A 19910726; KR 0146044 B1 19980817; KR 910011093 A 19910629
DOCDB simple family (application)
EP 90403045 A 19901029; AT 90403045 T 19901029; CA 2029505 A 19901107; DE 69014561 T 19901029; DK 90403045 T 19901029; ES 90403045 T 19901029; FR 8914676 A 19891108; JP 30124490 A 19901108; KR 900017994 A 19901107