| 摘要 |
A substance-atomizing apparatus ( 30 ) has a pump member ( 9 ) and a generator member ( 12 ). The pump member ( 9 ) has a piston ( 13 ) that is reciprocally moved in a cylinder ( 17 ) by drive device ( 1 ) and pressurizes a raw material fluid. The generator member ( 12 ) makes the raw material fluid pressurized in the pump member ( 9 ) pass through a hole portion ( 26 ) provided inside the generator member, and atomizes a substance included in the raw material fluid in accordance with nozzle characteristics of the hole portion ( 26 ). A pressure chamber ( 14 ) is formed between the piston ( 13 ) and a closed end of the cylinder ( 17 ). An intake ( 15 ) is formed on a cylinder ( 17 ) side surface of the pressure chamber ( 14 ). An outlet ( 16 ) is formed on the closed end ( 18 ) of the cylinder ( 17 ). In the first half of a discharge stroke, the raw material fluid is sent from the pressure chamber ( 14 ) into a charge vessel ( 10 ) through the intake ( 15 ). In the last half of the discharge stroke, the intake ( 15 ) is directly closed by the side surface of the piston ( 13 ), and the raw material fluid is sent from the pressure chamber ( 14 ) into the generator member ( 12 ) through the outlet ( 16 ).
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