| 摘要 |
PROBLEM TO BE SOLVED: To provide a fluid injection device temporarily alleviating injection force due to a high pressure.SOLUTION: A fluid injection device comprises: a fluid injection section injecting pulse-like fluid; a fluid supply section having a fluid storage section storing the fluid having a pressure equal to a predetermined pressure or more and supplying the fluid stored in the fluid storage section to the fluid injection section; a connection flow passage connecting the fluid injection section and the fluid storage section and becoming a flow passage where the fluid flows; an open/close section opening and closing the connection flow passage; and a control section transmitting an opening signal for opening the connection flow passage to the open/close section and transmitting an injection signal for injecting the fluid to the fluid injection section. The control section transmits the injection signal after a predetermined period of time has elapsed since the opening signal was transmitted. |
