air stream

The second form is called the “wick” carburetor because the air stream was passed over or through saturated wicking.

The fuel is reduced to a spray by the suction effect of the entering air stream drawing it through a fine opening.

This would cause the gasoline to spray out of the tube and mix with the entering air stream.

With that she diffidently opened the door and left, but Borgert undid one of the windows and let the pure autumn air stream in.

Tom poked his head out and the air stream hit him like a solid wall.