A fuel-fired furnace incorporates specially designed fuel/air mixing and combustion structures. The fuel/air mixing structure is of a mixing sound-attenuating design and comprises a venturi having a perforated sidewall portion and being surrounded by a noise-damping housing chamber communicating with the interior of the venturi via its sidewall perforations. During use of the mixing structure, air is flowed through the venturi in a swirling pattern while fuel is transversely injected internally against the swirling air. The combustion structure comprises a burner box housing into which the fuel/air mixture is flowed, combusted, and then discharged as hot combustion gas into and through the heat exchanger tubes. The fuel/air mixture entering the burner box housing initially passes through a non-uniformly perforated diffuser plate functioning to substantially alter in a predetermined manner the relative combustion gas flow rates through the heat exchanger tubes.
申请公布号
AU2014328025(A1)
申请公布日期
2016.04.07
申请号
AU20140328025
申请日期
2014.09.12
申请人
RHEEM MANUFACTURING COMPANY
发明人
AKBARIMONFARED, AMIN;SHELLENBERGER, TIMOTHY J.;NEIHOUSE, ROBERT STEVEN;WILLBANKS, SCOTT ALAN;FARLEY, DARRYL;WHALEN, NATHAN TAYLOR;REED, SHAWN ALLEN