| 摘要 |
<p>The present invention provides a gas burner including: a distributor means having at least one distribution chamber to distribute an air gas mixture around said distributor, said burner including a plurality of flame ports through which said gas mixture can pass and be ignited; at least one injector associated with said distributor, said at least one injector being positioned to inject gas into said at least distribution chamber via a venturi formed of a vertically directed passage and transition port and at least one venturi extension extending away from said transition port. The present invention also provides manifold for a gas burner, said manifold having an upper wall and a lower wall held in spaced apart relationship by a peripheral wall to define a cavity therebetween, said manifold including means to mount at least one injector so as to deliver an air gas supply to a distribution means and an inlet port to allow connection to a supply of gas, which can pressurise said cavity, said upper and said lower wall being formed from relatively thin sections. 2 --- 18</p> |
