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US 4,052,141 AGranted
Atmospheric burner for heating furnaces
AssigneeLear Siegler, Inc.
InventorsJay Dudheker, Charles E. Isaacson
Life of this patent
Estimating the term…
Abstract
An inshot, atmospheric burner assembly is provided for hot air furnaces including a frame supporting a venturi assembly, an adjustable secondary air shutter and a circular target or flame spreader. The flame spreader is positioned adjacent the outlet of the venturi assembly. An orifice holder extends through the base of the frame and adjustably carries a primary air shutter.
Claims11
An inshot atmospheric gas burner assembly, comprising:
- an orifice holder;
- an open sided burner frame positioned on said orifice holder;
- a venturi assembly having an inlet and an outlet supported by said burner frame in front of said orifice holder, the centerline of said venturi assembly being coincident with the centerline of said orifice holder;
- a primary air shutter assembly adjustably disposed on said orifice holder for movement towards and away from said venturi assembly inlet to thereby define an adjustable primary air passage;
- an annular collar positioned around and attached to said burner frame and adapted to attach the burner frame to a furnace;
- a secondary air shutter assembly adjustably supported on said burner frame between said venturi assembly inlet and said annular collar and including an annular ring concentrically positioned around said venturi assembly adjacent said annular collar to thereby define an adjustable secondary air passage with said annular collar;
- and
- a target assembly supported by said burner frame in line with and spaced from the outlet of said venturi assembly and adapted to be impinged upon by the flame from the burner assembly.
5 more elements
An inshot atmospheric gas burner assembly, comprising:
- an orifice holder;
- an open sided burner frame positioned on said orifice holder;
- a venturi assembly having an inlet and an outlet supported by said burner frame in front of said orifice holder, the centerline of said venturi assembly being coincident with the centerline of said orifice holder;
- a primary air shutter assembly adjustably disposed on said orifice holder for movement towards and away from said venturi assembly inlet to thereby define an adjustable primary air passage;
- an annular collar positioned around and attached to said burner frame and adapted to attach the burner frame to a furnace;
- a secondary air shutter assembly adjustably supported on said burner frame between said venturi assembly inlet and said annular collar and including an annular ring concentrically positioned around said venturi assembly adjacent said annular collar to thereby define an adjustable secondary air passage with said annular collar;
- a target arm rigidly secured at one end to said burner frame and having a portion angled with respect to the centerline of said venturi assembly at the other end;
- a circular generally planar flame spreader attached to said angled portion of said target arm and positioned spaced from and at an angle to the outlet of said venturi assembly;
- and
- said circular flame spreader having a plurality of perforations formed therein.
7 more elements
An inshot atmospheric burner assembly, comprising:
- an orifice holder;
- a burner frame positioned on said orifice holder;
- a venturi assembly having an inlet and an outlet supported by said burner frame in front of said orifice holder, the centerline of said venturi assembly being coincident with the centerline of said orifice holder;
- a primary air shutter assembly adjustably disposed on said orifice holder for movement towards and away from said venturi assembly inlet to thereby define an adjustable primary air passage;
- an annular collar positioned around and attached to said burner frame and adapted to attach the burner frame to a furnace;
- a secondary air shutter assembly adjustably supported on said burner frame between said venturi assembly inlet and said annular collar and including an annular ring concentrically positioned around said venturi assembly adjacent said annular collar to thereby define an adjustable secondary air passage;
- a target assembly supported by said burner frame in line with and spaced from the outlet of said venturi assembly and adapted to be impinged upon by the flame from the burner assembly and, wherein said burner frame is generally U-shaped and includes a base portion and leg portions, said base portion having an aperture formed therein, said frame adjustably disposed on said orifice holder at said base aperture thereby permitting said burner frame to be adjustably positioned on said orifice holder.
4 more elements
Dependencies are inferred from the claim text.