Abstract A flame retention head assembly for use in the air tube of a fuel burner having a fuel nozzle and ignition means for igniting the burner. The head assembly comprises a cylindrical ring positioned coaxially in the air tube and secured to the fuel nozzle. A spinner plate is secured inside the cylindrical ring adjacent the rear end of the ring and such plate is provided with a central opening facing the fuel nozzle. Vanes are formed in the spinner plate around the opening therein so as to impart a swinging motion to the air stream passing through the cylindrical ring thus causing a turbulence in the air stream to improve combustion of the flame produced by ignition of the fuel emitted by the nozzle. A cone-shaped flange is secured to the front part of the cylindrical ring and has openings therein for creating additional turbulence in the air stream at the outlet of the cylindrical ring to improve fuel combustion. Finally, a gap is provided between the cone-shaped flange and the air tube to permit flow of air at high velocity creating an overlapping air stream permitting to control the flame pattern.
A flame retention head assembly for use in the air tube of a fuel burner having a fuel nozzle and ignition means comprising: a. a cylindrical ring positioned coaxially in said air tube and secured to said fuel nozzle; b. a spinner plate secured inside said cylindrical ring adjacent the rear end of said cylindrical ring and in front of said fuel nozzle, said spinner plate having an opening facing said fuel nozzle; c. vanes formed in said spinner plate around said opening so as to impart a swirling motion to the air exiting from the cylindrical ring thus causing a turbulence in the air stream at the outlet of the cylindrical ring to improve combustion produced by ignition of the fuel emitted by the nozzle; and d. a cone-shaped flange secured to the front part of said cylindrical ring and spaced from said air tube, said coneshaped flange having openings therein arranged to cause additional turbulence in the air stream at the outlet of the cylindrical ring.
Claim 2
Dependent Claim
168 words
A flame retention head assembly for use in the air tube of a fuel burner having a fuel nozzle and ignition means comprising: a. a cylindrical ring positioned coaxially in said air tube and secured to said fuel nozzle; b. a spinner plate secured inside said cylindrical ring adjacent the rear end of said cylindrical ring and in front of said fuel nozzle, said spinner plate having an opening facing said fuel nozzle; c. vanes formed in said spinner plate around said opening so as to impart a swirling motion to the air exiting from the cylindrical ring thus causing a turbulence in the air stream at the outlet of the cylindrical ring to improve combustion produced by ignition of the fuel emitted by the nozzle; and d. a cone-shaped flange secured to the front part of said cylindrical ring and spaced from said air tube, said coneshaped flange having openings therein arranged to cause additional turbulence in the air stream at the outlet of the cylindrical ring.
Claim 3
Dependent Claim
55 words
A flame retention head assembly as defined in claim 1, further comprising a series of arms secured to the edge of said cone-shaped flange for evenly spacing said flange from said air tube so as to permit a flow of high velocity air between the flange and the air tube to control the flame pattern.
Claim 4
Dependent Claim
36 words
A flame retention head assembly as defined in claim 1, further comprising a clamp secured to said nozzle and metal strips interconnecting said clamp to said cylindrical ring for securing said cylindrical ring to said nozzle.
Claim 5
Dependent Claim
28 words
A flame retention head assembly as defined in claim 1, wherein said vanes are bent outwardly of the spinner plate surface toward the outlet of the air tube.
Claim 6
Dependent Claim
35 words
A flame retention head assembly as defined in claim 1, wherein said ignition means comprises a pair of electrodes converging towards the end of said nozzle for igniting the fuel spray exiting from the nozzle.