PROBLEM TO BE SOLVED: To provide a fluid injecting apparatus which can be driven by a compact pump.SOLUTION: The fluid injecting apparatus 100 includes: a pulsation generator 30 for changing the volume of a fluid room to inject a pulsation flow a fluid supplier 10 for supplying the pulsation generator 30 with a fluid a drive controller 50 for inputting each of them with a driving signal and a work instruction inputting center 40, wherein both a fluid supply driving signal for driving the fluid supplier 10 to supply the pulsation generator 30 with the fluid and a pulsation flow driving signal for driving a volume changing means to inject the fluid as a pulsation flow are input to interconnect with the input of a work instruction. Briefly, the injection and termination of the fluid, the generation and termination of the pulsation flow, and the supply of water into a pump can be interconnected with each other. Consequently, the fluid supply driving signal and the pulsation flow driving signal can be interconnected with each other to limit continuous injection within a necessary and sufficient extent, allowing to keep so small the volume of the fluid in the fluid supplier that even a compact pump can provide a necessary and sufficient continuous injection.COPYRIGHT: (C)2012,JPO&INPIT【課題】コンパクトなポンプで稼動する流体噴射装置を提供する。【解決手段】流体噴射装置100は、流体室の容積を変化させて脈動流を噴射する脈動発生部30と、脈動発生部30に流体を供給する流体供給部10と、それぞれに駆動信号を入力する駆動制御部50と、作動指令入力部40とを有し、流体を脈動発生部30に供給するために流体供給部10を駆動する流体供給駆動信号と、流体を脈動流として噴射するために容積変更手段を駆動する脈動流駆動信号とが、作動指令の入力に連動して入力される。つまり、流体の噴射および停止と、脈動流生成および停止およびポンプへの給水とを連動させることができる。従って、流体供給駆動信号と脈動流駆動信号とを互いに連動させて連続噴射を必要充分な範囲にしぼることで、流体供給部に確保する流体の量が少なく、コンパクトなポンプでも必要充分な連続噴射が得られる。【選択図】図1
