Spraying nozzle and method for ejecting liquid as fine particles

A spray nozzle for ejecting liquid as fine particles, said spray nozzle comprising:

• an acute angled edge portion defining a first flow surface and a second flow surface, wherein said first and second flow surfaces have a common edge;
• a first liquid outlet formed in said first flow surface;
• a first gas ejection outlet for ejecting pressurized gas in a direction substantially parallel to said first flow surface and towards said common edge so as to cause liquid, delivered to said first flow surface, to flow towards said common edge in the form of a thin film and to be sprayed therefrom;
• and
• a second gas ejection outlet for ejecting high pressurized gas in a direction along said second flow surface towards said common edge, wherein said first and second gas ejection outlets are oriented such that the pressurized gas flows ejected therefrom will collide at a point beyond said common edge.

A spray nozzle for spraying liquid in the form of fine particles, said spray nozzle comprising:

• an inside ring having an annular end portion;
• a high pressure gas passage defined by said inside ring and opening in said annular end portion;
• a middle ring having an annular end portion defining an acute angled edge portion forming liquid flow surfaces on both sides of said acute angled edge portion, wherein said annular end portion of said inside ring and said annular end portion of said middle ring are substantially aligned so as to form a flow surface;
• and
• a liquid outlet defined by an outer peripheral surface of said inside ring and an inner peripheral surface of said middle ring.