Amir Feriani;Christian Tâche;Cèdric Zaugg;Jean-Paul Sandoz
发明人:
Amir Feriani,Christian Tâche,Jean-Paul Sandoz,Cèdric Zaugg
申请号：
US13883702
公开号：
US20130319404A1
申请日:
2011.10.31
申请国别(地区):
US
年份:
2013
代理人:
摘要：
A liquid droplet spray device for ejecting a liquid as a spray of droplets has a cartridge (15) with a nozzle arrangement (13) to eject droplets, which is vibrated by a piezo element (23a) through the agency of an actuating element (23). A resonance chamber is disposed between an inner wall (15a) of the cartridge and the actuating element (23) such that the cartridge inner wall (15a) is separated by a gap having a length B from the actuating element (23), the cartridge inner wall (15a) being cap-shaped and extending along the side surfaces of the actuating element (23) and being frictionally attached to the side surfaces along a distance A. The resonance chamber (10) improves the efficiency of transmission of vibrations to the cartridge.
