| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid jetting device capable of quickly exhausting bubbles existing or generated in the liquid to be jetted and of jetting the liquid upon being atomized at the requested timing. SOLUTION: The liquid jetting device 10 is equipped with a jetting device 15 and a solenoid-operated opening/closing jetting valve 14 to discharge the pressurized fuel to the jetting device. The discharge hole of the valve is connected with a sealed space in a cylindrical shape, which is connected with a liquid discharge nozzle through a liquid injection hole in the jetting device, a liquid supply passage, and a chamber. The valve discharges the pressurized fuel at an inclined angle to the axis of the sealed space so as to generate a fuel flow in a wide part of the sealed space, and thereby prevents generation of large bubbles in the sealed space. The jetting device gives the liquid a vibratory energy based upon a change of the chamber capacity due to a piezoelectric/ electrostrictive element and atomize the liquid to be injected. COPYRIGHT: (C)2004,JPO
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