Gaseous fuel burners
First Claim
1. A mixer device for mixing first and second fluids, the device comprising a hollow vessel having two open ends and a longitudinal axis and comprising in combination first and second tubular members nested together to form the vessel, one of said members having a surface with a plurality of grooves each of which lies in a direction that is both tangential to a cylinder drawn about said axis and inclined towards one end of said vessel, the other of said members having a surface that coacts with said grooved surface to form a plurality of inlets into said cylinder for said first fluid whereby said first fluid is directed into said vessel with a helical motion about said axis and directed towards said one end of said vessel whereby a low pressure zone is created within the helix to draw said second fluid into said vessel via the other end thereof.
2 Assignments
0 Petitions
Accused Products
Abstract
A gaseous fuel mixture burner which includes a mixer device into which gas is injected so as to provide a gaseous vortex formation within the mixer, air being drawn into the device and mixed with the gas by the low pressure region created within the vortex.
25 Citations
19 Claims
- 1. A mixer device for mixing first and second fluids, the device comprising a hollow vessel having two open ends and a longitudinal axis and comprising in combination first and second tubular members nested together to form the vessel, one of said members having a surface with a plurality of grooves each of which lies in a direction that is both tangential to a cylinder drawn about said axis and inclined towards one end of said vessel, the other of said members having a surface that coacts with said grooved surface to form a plurality of inlets into said cylinder for said first fluid whereby said first fluid is directed into said vessel with a helical motion about said axis and directed towards said one end of said vessel whereby a low pressure zone is created within the helix to draw said second fluid into said vessel via the other end thereof.
- 15. A mixer device for mixing first and second fluids comprising an open-ended tubular mixing chamber and means at or adjacent one end of the chamber for inspirating the second fluid into the chamber, the means including a supply header for the first fluid, the header comprising inner and outer members forming a header of generally annular form and having a surface generally coaxial with the longitudinal axis of the chamber, and a series of orifices in the surface formed between cooperating surfaces on the inner and outer members, the orifices being disposed radially inwardly with respect to the inner surface of the chamber to form a passage to allow second fluid to enter the chamber between the orifices and said inner surface, said orifices being orientated in such manner that first fluid entering the chamber via the orifices has imparted to it a helical motion about the longitudinal axis and directed towards the other end of the chamber whereby second fluid is inspirated into the chamber through the supply header and from outside the header into the chamber at points adjacent said orifices.
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17. A mixer device mounted at the inlet of a diffuser of a burner element for mixing first and second fluids comprising an open-ended tubular mixing chamber and means for inspirating the second fluid into the chamber, the means including a supply header for the first fluid, the header being of generally annular form and having a surface coaxial with the longitudinal axis of the chamber and facing one of the open ends thereof, and a series of orifices in the surface and in communication with the interior of the header, the latter being positioned coaxially within the chamber in such manner that there is an annular passageway between the header and the chamber for the entry into the latter of second fluid, the orifices being spaced radially inwardly with respect to the inner surface of the chamber and being orientated in such manner that first fluid entering the chamber from the orifices has imparted to it a helical motion about said longitudinal axis and directed towards said one open end whereby second fluid is inspirated into the chamber through the supply header and through said annular passageway.
Specification