Patent ID: 8431856

Claim:
An inner burner ( 1 ) for electric arc wire spraying of hollow spaces, particularly cylinder bearing surfaces ( 9 ), with at least two electrodes provided for melting, which electrodes are wires that can be melted in an electric arc, at least two feed channels ( 5 ) for feeding the electrodes to a discharge nozzle ( 6 ) of the inner burner ( 1 ), and at least two sliding contacts ( 4 ) for transmitting electrical energy to the electrodes, wherein the two sliding contacts ( 4 ) are displaceably mounted in the axial direction ( 10 ) and are respectively connected to a guide element ( 7 ) that is also displaceably mounted in the axial direction ( 10 ), the feed channels ( 5 ), the sliding contacts ( 4 ) and the guide elements ( 7 ) are arranged parallel to one another up to the region of the discharge nozzle ( 6 ), and the feed channels ( 5 ) are formed in an angled manner in the region of the discharge nozzle ( 6 ), and each respective guide element ( 7 ) is axially pretensioned via respectively at least one associated spring ( 11 ) and thereby presses the associated sliding contact against the electrode, such that the sliding contacts ( 4 ) press the electrodes against an inner wall of the feed passage in the region of the outlet nozzle ( 6 ).