AMIR FERIANI,CHRISTIAN TACHE,CÈDRIC ZAUGG,JEAN-PAUL SANDOZ
申请号：
BR112013011411
公开号：
BR112013011411A2
申请日:
2011.10.31
申请国别(地区):
BR
年份:
2019
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.
