MOUTHPIECE ENTRAINMENT AIRFLOW CONTROL FOR AEROSOL GENERATORS

    公开(公告)号:EP1465694B1

    公开(公告)日:2018-11-28

    申请号:EP02787034.4

    申请日:2002-12-17

    IPC分类号: A61M15/00 A61M11/00

    摘要: An aerosol generator includes a housing, a heater and a mouthpiece wherein the heater volatilizes liquid material within a flow passage and forms an aerosol in the mouthpiece. Mixing ambient air with the vaporized liquid material controls a droplet size of the aerosol. The ambient air can be directed into the mouthpiece by at least one air passageway in an airflow entrainment control member. The at least one air passageway provides a desired volume and/or velocity of ambient air entering into the mouthpiece thereby achieving a desired droplet size distribution of an aerosol. In an alternative arrangement, a funnel shaped airflow entrainment control member includes a narrow end proximate the outlet end of the flow passage. A cone angle of the funnel-shaped member can be selected to provide a desired volume of ambient air which mixes with the vaporized liquid material and achieves a desired aerosol droplet size distribution.

    AN AEROSOL GENERATOR
    10.
    发明公开

    公开(公告)号:EP3308865A1

    公开(公告)日:2018-04-18

    申请号:EP17197100.5

    申请日:2011-10-03

    摘要: An aerosol generator (100) has a vibratable plate (1) with apertures therein and an annular piezo (2) which causes movement of the vibratable plate (1). An annular support member (3) supports the piezo (2) and the vibratable plate (1). A first electrical power conducting pin (10) engages directly with a first, top, surface of the piezo (2). A second electrical power conducting pin (11) indirectly conducts electrical power to a second surface of the piezo (2), by contacting an extension tab (103) of the support member (20), also on its top side. There is a film of cured epoxy adhesive on the tab (103), providing excellent gripping force between the pin (11) and the support (3). The aerosol generator (100) avoids need for soldered joints for electrical contact, and the pins are conveniently mounted parallel to each on the on the same lateral and top side of the piezo and support member. The pins may have multipoint tips (50) for particularly effective electrical contact.