How does the pressure pump of a perfume nozzle work?

The working principle of the pressure pump in a perfume nozzle is primarily achieved through manual operation. Specifically, when the user presses down on the actuator, the volume in the spring chamber decreases, causing an increase in pressure. This pressure forces the liquid through the valve core's hole into the nozzle chamber, from which it is sprayed out. Upon releasing the actuator, the volume in the spring chamber increases, creating a negative pressure. Under this negative pressure, the ball valve opens, allowing the liquid from the bottle to re-enter the spring chamber, completing a full spray cycle.

The design of this pressure pump significantly impacts the spraying effect. First, by adjusting the size and angle of the nozzle, the flow rate and pressure of the spray can be controlled, enabling precise control over the liquid delivery. Additionally, the nozzle usually contains a narrow passage that allows the fluid to be ejected at high speed, producing a fine and uniform mist. Moreover, by altering the structure and size of the pump and valve (such as enlarging the expansion chamber or increasing the diameter of the swirl chamber), the spray performance can be further optimized, resulting in a finer mist.

The pressure pump of the perfume nozzle enables the rapid expulsion of liquid through manual operation, and its design and structure have a direct impact on the spray effect.