| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid jetting apparatus which can securely atomize droplets to be jetted, and has an extremely long service life even when applied to machinery in which temperature is made high or a cryogenic cycle is severe. SOLUTION: The liquid jetting apparatus 10 comprises: a pressure vibration application part 20 provided with a piezoelectric/electrostrictive element; a pressure pump 31; a liquid feed tube 33; a pressure control valve 34; an electromagnetic opening/closing type discharge valve 35; and a jetting chamber 37. Pressure required for jetting a liquid from the jetting chamber 37 is generated by the pressure pump. Vibration required for atomizing the liquid is generated from the pressure vibration application part. The pressure vibration application part is arranged on a fuel feed tube at a position far from a liquid jetting space by the jetting chamber and the electromagnetic opening/closing type discharge valve 35, and a heat transfer amount from the liquid jetting space and a member composing the liquid jetting space to the pressure vibration application part is reduced. COPYRIGHT: (C)2005,JPO&NCIPI
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