| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fluid injection device having outer members for sealing a pulsation generation section and being detachably attached to the pulsation generation section. <P>SOLUTION: The fluid injection apparatus 10 includes: a pulsation generation section 30 having a fluid chamber 120 and a diaphragm 70 for changing the volume of the fluid chamber 120, and pulsatingly discharging the fluid; a connecting duct tube 90 having a connecting duct 92 communicated with the fluid chamber 120 and a fluid injection opening 97, transmitting the pulsation of the fluid passed from the pulsation generation section 30 to the fluid injection opening 97 and detachably mounted to the pulsation generation section 30; a fluid feed tube 25 being press-fitted in a part of the pulsation generation section 30 and feeding the fluid to the fluid chamber 120; a drive signal cable for inputting drive signals to the pulsation generation section 30; a first protection tube 27 press-fitted in a part of the pulsation generation section 30 and where the drive signal cable is inserted; and an upper case 35 and a lower case 36, as outer members, for sealing the circumference of the pulsation generation section 30 and being detachably attached to the pulsation generation section 30. <P>COPYRIGHT: (C)2010,JPO&INPIT |
