Global Patent Index - EP 0709621 B1

EP 0709621 B1 2000-04-05 - Air-atomized oil burner

Title (en)

Air-atomized oil burner

Title (de)

Ölbrenner mit Druckluftzerstäuber

Title (fr)

Brûleur à huile avec pulvérisateur à air


EP 0709621 B1 (EN)


EP 95830449 A


IT BO940477 A

Abstract (en)

[origin: EP0709621A2] The air-atomized oil burner comprises three coaxial tubes (2, 3, 5), the innermost one (2) being designed to feed fuel oil, while the middle one (3) and outermost one (5) are fed by the same air supply at low pressure and ambient temperature, and comprises also an atomizing nozzle (7) consisting of a head (8) fitted to the innermost tube (2) and having peripheral grooves (10) extending at an angle with respect to the axis of the head (8) and terminating at a conical section (11) of the head (8) itself, and of a casing (12) which closes the said middle tube (3) and which has an axial hole (13) for housing the said head (8); in the axial hole (13) the head (8) defines a small sized atomization chamber (16) into which the grooves (10) and the fuel oil feed holes (17) lead in perpendicular directions; the atomization chamber (16) feeds the atomized oil along the middle tube (3) where it is mixed with secondary air (6) fed through radial holes (19) made in the middle tube (3) itself. <IMAGE>

IPC 1-7 (main, further and additional classification)

F23D 11/10

IPC 8 full level (invention and additional information)

F23D 11/10 (2006.01)

CPC (invention and additional information)

F23D 11/105 (2013.01)

Designated contracting state (EPC)


DOCDB simple family

EP 0709621 A2 19960501; EP 0709621 A3 19980204; EP 0709621 B1 20000405; DE 69516081 D1 20000511; DE 69516081 T2 20000914; ES 2147277 T3 20000901; IT 1274087 B 19970715; IT BO940477 A1 19960430; IT BO940477 D0 19941031