| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique to inject a pulsating current of appropriate force immediately after the start of the injection.SOLUTION: A fluid injection device for injecting fluid includes: an injection pipe with an opening to inject fluid; a fluid chamber communicated with the injection pipe that accommodates fluid inside; air bubble generation means for generating air bubbles in the fluid inside the fluid chamber; a supply passage communicated with the fluid chamber; opening/closing means provided in the supply passage for opening/closing the supply passage; a fluid supply part for pressurizing the fluid and supplying the fluid to the fluid chamber through the supply passage; and a drive control part for controlling the drive of the air bubble generation means. The drive control part executes control so that air bubble generation by the air bubble generation means is made after the opening of the supply passage by the opening/closing means. |
