SPRAY PUMP DEVICE USING A MEMORY SHAPE METAL ALLOY AS ACTUATOR

摘要

The invention refers to a spray pump device for spraying a liquid operated by a memory shape element (11). The spraying device is provided with a memory shape alloy wire (11) with electrical resistivity, that is able to generate heat that increases its temperature so that due to memory shape property, the wire shrinks when current is applied. This shrinking permits the wire to activate a pump that atomizes a volatile substance.