燃气灶

Ejector and combustor using same

The ejector comprises an ejector body, the ejector body is divided into a contraction part, a first mixing part and a diffusion part according to the change of the cross section in the airflow direction, and an ejector is arranged at the air inlet end, facing the contraction part, of the ejector body. The ejector is characterized in that the ejector further comprises a sleeve arranged outside the ejector body in a sleeving mode, the sleeve comprises a first end connected with the contraction part of the ejector body and a second end connected with the diffusion part of the ejector body, and a second gas and/or primary air mixing part is formed between the sleeve and the ejector body; the first end of the sleeve is provided with a first injection port for injecting fuel gas and/or primary air, and the second end of the sleeve is provided with a second injection port for injecting the fuel gas and/or the primary air. The combustor is not prone to flame separation in the combustion process ...