| 摘要 |
<p>A pulse combustion space heater (10) and burner (20) are disclosed. The heater (10) has an exterior cabinet (12) enclosing an interior housing (60) having the burner (20) mounted therein. The burner (20) includes a plurality of generally flat elements (22, 24, 26, 28) which cooperate with the interior housing (60) to provide a tortuous path for air circulated through the chamber (24) during heat transfer. A labyrinthine air flow passageway (130) lined with sound attenuating material (134, 136) is provided immediately usptream of the heater air discharge (88). The burner tailpipe (26) comprises a weldment of two identical sheet metal pieces (36, 38) which cooperatively define a tailpipe conduit (42). A fuel gas inlet orifice (114) is mounted in the wall of the mixer head (22) to effect both regulation of the average flow rate and injection of the fuel to enhance its mixture with the air.</p> |
