Philipp Holzmann;Harald Schulz;Dominique Mutschmann;Michael Hahn
发明人:
Harald Schulz,Philipp Holzmann,Dominique Mutschmann,Michael Hahn
申请号：
US14123634
公开号：
US09975136B2
申请日:
2012.06.04
申请国别(地区):
US
年份:
2018
代理人:
摘要：
An aerosol generator for generating an aerosol from a fluid, comprising: a vibratable membrane (22) having a first side (24) for being in contact with the fluid and an opposite second side (25), the membrane having a plurality of through holes (26) penetrating the membrane in an extension direction (E) from the first side to the second side, whereby the fluid passes the through holes from the first side to the second side when the membrane is vibrated for generating the aerosol at the second side, each through hole (26) having along its extension direction (E) a smallest diameter (Ds), a larger diameter (DL) that is larger than the smallest diameter and defined by that diameter that is closest to triple, preferably twice said smallest diameter, each through hole having a nozzle portion (32) defined by that continuous portion of the through hole in the extension direction comprising the smallest diameter of the through hole and bordered by the larger diameter of the through hole, characterized in that the ratio of the total length of each through hole (26) in the extension direction to the length of a respective one of said nozzle portions (32) in the extension direction is at least (4), preferably at least (4.5) and most preferred equal to or larger than (5).
