Smokeless flare burner

A burner comprising:

• a housing having a longitudinal axis, a first cylindrical portion, a first tapered portion connected to the first cylindrical portion, a second cylindrical portion connected to the first tapered portion, a second tapered portion connected to the second cylindrical portion, and the first tapered portion, the second cylindrical portion and the second tapered portion form a venturi;
• an orificed gas nozzle aligned with the longitudinal axis and disposed within the housing proximate to the first cylindrical portion and the first tapered portion of the housing;
• a conical diffuser aligned with the longitudinal axis and having a vertex disposed within the second tapered portion of the housing and a base substantially perpendicular to the longitudinal axis;
• two or more support members attached to the second tapered portion of the housing and the conical diffuser that create a gap between the second tapered portion of the housing and the conical diffuser;
• a retention cap attached to the base of the conical diffuser and extending beyond a perimeter of the base of the conical diffuser;
• an expansion chamber disposed around an exterior of the second cylindrical portion and having an exit proximate to the gap between the second tapered portion of the housing and the conical diffuser;
• and
• a low pressure gas nozzle connected to the expansion chamber using a tubing.

A burner comprising:

• a housing having a longitudinal axis, a first cylindrical portion, a first tapered portion connected to the first cylindrical portion, a second cylindrical portion connected to the first tapered portion, a second tapered portion connected to the second cylindrical portion, and the first tapered portion, the second cylindrical portion and the second tapered portion form a venturi;
• two or more air intake openings within the first cylindrical portion of the housing;
• an orificed gas nozzle aligned with the longitudinal axis and disposed within the housing proximate to the first cylindrical portion and the first tapered portion of the housing;
• a conical diffuser aligned with the longitudinal axis, having a vertex disposed within the second tapered portion of the housing, a base substantially perpendicular to the longitudinal axis, and a shape of the conical diffuser is substantially parallel to a shape of the second tapered portion of the housing;
• two or more support members attached to the second tapered portion of the housing and the conical diffuser that create a gap between the second tapered portion of the housing and the conical diffuser;
• and
• a retention cap attached to the base of the conical diffuser, extending beyond a perimeter of the base of the conical diffuser the retention cap, and having a diameter greater than or equal to a maximum diameter of the second tapered portion of the housing.