Nozzle of a spray gun and method for spraying from spray gun

A nozzle of a spray gun, comprising:

• an outer part connected to a front outlet of the spray gun and including a neck portion formed therein, a neck hole formed through the neck portion, multiple paths defined through the neck portion of the outer part and located around the neck hole, the neck portion dividing an inner space of the outer part into a first room and a second room;
• a tube extending through the neck hole of the outer part, a front end of the tube located in the second room, a rear end of the tube located in the first room;
• a swing member located in the first room of the outer part and connected to the rear end of the tube, and
• an inner part located in the second room and connected to the front end of the tube, wherein when pressurized fluid is introduced into the first room, the swing member swings responsive to a force of the pressurized fluid, and the tube and the inner part swing with the swing member, the pressurized fluid enters into the second room via the multiple paths and sprays out from the outer part.