KOJIMA HIDEKI,小島 英揮,SETO TAKESHI,瀬戸 毅,HIRABAYASHI ATSUYA,平林 篤哉
申请号：
JP2011041140
公开号：
JP2012176159A
申请日:
2011.02.28
申请国别(地区):
JP
年份:
2012
代理人:
摘要：
PROBLEM TO BE SOLVED: To prevent fluid outflow at the stop of a pulse flow ejection with a simple configuration.SOLUTION: A fluid ejection device 1 ejects fluids from a fluid ejection opening 93 toward an object to be ejected. The fluid ejection device 1 includes a fluid chamber 80 having an outlet channel 82 so as to communicate with the fluid ejection opening 93, and a pulsation generator 20 that generates pulsed flow to the outlet channel 82 by pressurizing or depressurizing the fluid supplied to the fluid chamber 80. The fluid ejection opening 93 includes an inlet opening end 93a on the side of the outlet channel 82 and an outlet opening end 93b of the side to be ejected with respect to the inlet opening end 93a. An opening area of the inlet opening end 93a is larger than that of the outlet opening end 93b. The outlet channel is formed inside a suction tube.COPYRIGHT: (C)2012,JPO&INPIT【課題】パルス流噴射の停止時における流体の流出を、簡単な構成で防止する。【解決手段】噴射対象に向けて流体噴射開口部93から流体を噴射する流体噴射装置1であって、流体噴射開口部93と連通する出口流路82を有する流体室80と、流体室80に供給された流体を加減圧して、出口流路82への脈動流を発生する脈動発生部20とを備え、流体噴射開口部93は、出口流路82側の入口開口端93aと、入口開口端93aとは噴射対象側の出口開口端93bとを備え、入口開口端93aの開口面積より出口開口端93bの開口面積が大きく、前記吸引管の内側に前記出口流路を形成する、流体噴射装置1。【選択図】図2
