| 摘要 |
<p>A gas- or oil-fired central heating system has a burner fed by a mixer unit consisting of a jet lance (6) with a distributor and a central fuel jet (3). A flame pipe (10) extends into the burner chamber (2) which has a perforated screen (4) admitting air. The jet lance (6) and perforated screen (4) are separated by a chamber (9) with a fuel supply harmonisation unit (10) with numerous fine apertures.</p> |
