PROBLEM TO BE SOLVED: To detect blockage of a flow passage of a fluid and to improve safety and reliability of a fluid injection device.SOLUTION: A fluid injection device comprises: a fluid container having a fluid storage section storing fluid and a fluid outlet formed on the fluid storage section a fluid press section pressing the fluid storage section and causing the fluid to outflow from the fluid outlet connection tubing with one end connected to the fluid outlet a fluid injection section having a fluid intake port connected with the other end of the connection tubing and injecting the fluid taken in from the fluid intake port in a pulsed manner a pressure detection section detecting a pressure when the fluid press section presses the fluid storage section and outputting a detection signal of a level corresponding to the pressure and a press control section causing the fluid press section to stop pressing to the fluid storage section when the pressure indicated by the detection signal is equal to a predetermined determination value or more.COPYRIGHT: (C)2016,JPO&INPIT【課題】流体の流路の閉塞を検知し、流体噴射装置の安全性や信頼性を向上させる【解決手段】流体を収容する流体収容部と、前記流体収容部に形成される流体出口と、を有する流体容器と、前記流体収容部を押圧して、前記流体出口から前記流体を流出させる流体押圧部と、一端が前記流体出口に接続される接続配管と、前記接続配管の他端が接続される流体取入口を有し、前記流体取入口から取り入れた前記流体をパルス状に噴射する流体噴射部と、前記流体押圧部が前記流体収容部を押圧する際の圧力を検知し、前記圧力に応じたレベルの検知信号を出力する圧力検知部と、前記検知信号により示される前記圧力が所定の判定値以上である場合には、前記流体押圧部に前記流体収容部への押圧を停止させる押圧制御部と、を備えることを特徴とする流体噴射装置。【選択図】図6
