IP Library Granted Patent US 12685976
Granted Patent B2
US 12685976 · App. 18/326,718 · Granted Jul 21, 2026

Wet atomizer

Inventors: Yuuya Yamada (Namerikawa City, JP); Keiichi Katayama (Namerikawa City, JP); Masashi Tsunemoto (Namerikawa City, JP)
Assignee: SUGINO MACHINE LIMITED
B01F23/49B01F23/41B01F35/2113B01F35/2213
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Quick Facts
Patent No.
US 12685976
App. No.
18/326,718
Granted
Jul 21, 2026
Kind
B2
Abstract

Provided is a wet atomizer capable of stably increasing a pressure in a pressurizing chamber and performing highly reproducible raw material process. A wet atomizer includes a motor; a power transmission device that converts a rotational motion of the motor into a reciprocating motion; a high-pressure cylinder; a plunger that reciprocates inside the high-pressure cylinder by the power transmission device to pressurize raw materials; a drive controller that controls the reciprocating motion of the plunger; a nozzle that atomizes pressurized raw material; a first check valve disposed downstream of the nozzle; and a first elastic member that presses the first check valve.

Claims (86)

1 . A wet atomizer, comprising:

a motor;

a power transmission device configured to convert a rotational motion of the motor into a reciprocating motion;

a high-pressure cylinder;

a plunger configured to reciprocate inside the high-pressure cylinder by the power transmission device to pressurize raw materials;

a drive controller configured to control the reciprocating motion of the plunger;

a nozzle configured to atomize pressurized raw material;

a first check valve disposed downstream of the nozzle; and

a first elastic member configured to press the first check valve.

2 . The wet atomizer according to claim 1 , wherein

the high-pressure cylinder includes

a suction port configured to suck the raw material, and

a discharge port configured to discharge the raw material,

the wet atomizer further comprising:

a second check valve disposed upstream of the nozzle; and

a second elastic member configured to press the second check valve.

3 . The wet atomizer according to claim 2 , further comprising:

a pressure detector configured to measure a pressure inside the high-pressure cylinder.

4 . The wet atomizer according to claim 2 , further comprising:

a nozzle holder disposed on the high-pressure cylinder to accommodate the nozzle.

5 . The wet atomizer according to claim 2 , further comprising:

a display unit including

a nozzle diameter setting unit configured to set any one of nozzle diameter among plurality of nozzle diameters,

an ejection pressure setting unit configured to set a target ejection pressure, and

a solvent specific gravity setting unit configured to set a solvent for using, and

an advanced-retracted speed calculation unit configured to calculate an advanced-retracted speed of the plunger based on the nozzle diameter, the target ejection pressure, and a solvent specific gravity.

6 . The wet atomizer according to claim 2 , wherein

the nozzle has

a through-hole configured to allow the raw material that has reached a high pressure in the high-pressure cylinder to pass through, and

a nozzle groove communicating with the through-hole, and

the through-hole and the nozzle groove constitute an L-shaped cross section.

7 . The wet atomizer according to claim 1 , further comprising:

a pressure detector configured to measure a pressure inside the high-pressure cylinder.

8 . The wet atomizer according to claim 7 , wherein

the high-pressure cylinder includes a detector connecting portion, and

the pressure detector is coupled to the detector connecting portion via a pressure detection sealing.

9 . The wet atomizer according to claim 8 , further comprising:

a nozzle holder disposed on the high-pressure cylinder to accommodate the nozzle.

10 . The wet atomizer according to claim 8 , further comprising:

a display unit including

a nozzle diameter setting unit configured to set any one of nozzle diameter among plurality of nozzle diameters,

an ejection pressure setting unit configured to set a target ejection pressure, and

a solvent specific gravity setting unit configured to set a solvent for using, and

an advanced-retracted speed calculation unit configured to calculate an advanced-retracted speed of the plunger based on the nozzle diameter, the target ejection pressure, and a solvent specific gravity.

11 . The wet atomizer according to claim 7 , further comprising:

a nozzle holder disposed on the high-pressure cylinder to accommodate the nozzle.

12 . The wet atomizer according to claim 7 , further comprising:

a display unit including

a nozzle diameter setting unit configured to set any one of nozzle diameter among plurality of nozzle diameters,

an ejection pressure setting unit configured to set a target ejection pressure, and

a solvent specific gravity setting unit configured to set a solvent for using, and

an advanced-retracted speed calculation unit configured to calculate an advanced-retracted speed of the plunger based on the nozzle diameter, the target ejection pressure, and a solvent specific gravity.

13 . The wet atomizer according to claim 7 , wherein

the nozzle has

a through-hole configured to allow the raw material that has reached a high pressure in the high-pressure cylinder to pass through, and

a nozzle groove communicating with the through-hole, and

the through-hole and the nozzle groove constitute an L-shaped cross section.

14 . The wet atomizer according to claim 1 , further comprising:

a nozzle holder disposed on the high-pressure cylinder to accommodate the nozzle.

15 . The wet atomizer according to claim 14 , further comprising:

a protect cover disposed outside the nozzle holder.

16 . The wet atomizer according to claim 14 , further comprising:

a display unit including

a nozzle diameter setting unit configured to set any one of nozzle diameter among plurality of nozzle diameters,

an ejection pressure setting unit configured to set a target ejection pressure, and

a solvent specific gravity setting unit configured to set a solvent for using, and

an advanced-retracted speed calculation unit configured to calculate an advanced-retracted speed of the plunger based on the nozzle diameter, the target ejection pressure, and a solvent specific gravity.

17 . The wet atomizer according to claim 15 , further comprising:

a display unit including

a nozzle diameter setting unit configured to set any one of nozzle diameter among plurality of nozzle diameters,

an ejection pressure setting unit configured to set a target ejection pressure, and

a solvent specific gravity setting unit configured to set a solvent for using, and

an advanced-retracted speed calculation unit configured to calculate an advanced-retracted speed of the plunger based on the nozzle diameter, the target ejection pressure, and a solvent specific gravity.

18 . The wet atomizer according to claim 1 , further comprising:

a display unit including

a nozzle diameter setting unit configured to set any one of nozzle diameter among plurality of nozzle diameters,

an ejection pressure setting unit configured to set a target ejection pressure, and

a solvent specific gravity setting unit configured to set a solvent for using, and

an advanced-retracted speed calculation unit configured to calculate an advanced-retracted speed of the plunger based on the nozzle diameter, the target ejection pressure, and a solvent specific gravity.

19 . The wet atomizer according to claim 18 , wherein

the display unit includes a measured pressure display unit configured to display an ejection pressure measured by the pressure detector.

20 . The wet atomizer according to claim 1 , wherein

the nozzle has

a through-hole configured to allow the raw material that has reached a high pressure in the high-pressure cylinder to pass through, and

a nozzle groove communicating with the through-hole, and

the through-hole and the nozzle groove constitute an L-shaped cross section.