# US 10,478,839 B2 · Portable ultrafine nebulizer

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- Number: US 10,478,839 B2
- Document ID: US10478839B2
- Status: Granted
- Kind: B2
- Application number: 15/326,451
- Filed: 2016-02-19
- Published: 2018-07-26
- Granted: 2019-11-19
- Earliest claimed: 2015-08-03
- Assignees: Airofog Machinery Co., Ltd.
- Applicants: Airofog Machinery Co., Ltd.
- Inventors: Choke Hua Phua
- Web page: https://patentgrep.com/patent/US10478839B2

## CPC

- B05B 7/0475: {with means for deflecting the peripheral gas flow towards the central liquid flow (B05B7/0458 takes precedence)}
- A01M 7/0021: {motor-driven}
- A61M 11/002: {by flow deviation causing inertial separation of transported particles}
- A61M 11/006: {operated by applying mechanical pressure to the liquid to be sprayed or atomised}
- B05B 7/0081: {Apparatus supplied with low pressure gas, e.g. "hvlp"-guns; air supplied by a fan}
- B05B 7/066: {with an inner liquid outlet surrounded by at least one annular gas outlet}
- B05B 7/10: producing a swirling discharge
- B05B 17/04: operating with special methods
- A61M 11/06: of the injector type
- A61M 2205/8206: battery-operated
- A61M 2206/16: Rotating swirling helical flow, e.g. by tangential inflows
- B05B 1/3436: {the interface being a plane perpendicular to the outlet axis}
- B05B 7/045: {the gas and liquid flows being parallel just upstream the mixing chamber (B05B7/0458, B05B7/0466 take precedence)}
- B05B: SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES (spray-mixers with nozzles B01F25/72; processes for applying liquids or other fluent materials to surfaces by spraying B05D)
- A01M: CATCHING, TRAPPING OR SCARING OF ANIMALS (appliances for catching swarms or drone-catching A01K57/00; fishing A01K69/00 - {A01K99/00}; biocides, pest repellants or attractants A01N); APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)}

## Abstract

A portable ultrafine nebulizer comprises a housing, an atomizing nozzle located at the front port of the housing, an air turbine deposited inside the housing, an air flow guide device fixed at the front port of the housing, and a water pump for pumping liquid; the air flow guide device is provided with a plurality of air flow guide blades distributed uniformly around the periphery of the atomizing nozzle, and each of the air flow guide blades is provided with a guide surface; in the atomizing nozzle is provided with a spiral channel and a fluid channel communicated with the water pump, the atomizing nozzle is provided with a spray port at the front end, and the spray port is communicated with the fluid channel through the spiral channel; the air turbine, the air flow guide blades and the spray port are distributed successively along the airflow direction.

## Claims

### Claim 1

A portable ultrafine nebulizer comprising:
a housing (1);
an air turbine (3) and a water pump (5) located inside the housing (1);
an atomizing means for atomizing water comprising anatomizing nozzle (2) and an air flow guide device (4);
the atomizing nozzle (2) comprises a nozzle housing (24) with an inner cavity (241), an inner core (25) deposited at a front section of the inner cavity (241), a first block (26) deposited in the inner cavity (241) and located at a rear end of the inner core (25), and a junction (27) inserted in a rear section of the inner cavity (241), the junction (27) is connected with the water pump (5) by a transfusion tube (6), a spray port (23) is placed at a front end of the nozzle housing (24), an outer wall of the first block (26) is bonded to an inner wall of the nozzle housing (24);
a liquid flow space is formed between an outer wall of the inner core (25) and an inner wall of the nozzle housing (24), and between a rear end of the inner core (25) and a front end of the first block (26), respectively; a spiral channel (21) is placed at the outer wall of the inner core (25), the first block (26) is provided with a first through hole (261) penetrated through forwards and backwards, the junction (27) is provided with a second through hole (271) penetrated through forwards and backwards; the first through hole (261), the second through hole (271) and the liquid flow space are communicated to form a fluid channel;
the air flow guide device (4) comprises a connection lid (11) and a fixed disc (42) with a plurality of air flow guide blades (41) distributed uniformly around the atomizing nozzle (2), the air flow guide blades (41) extends forward from the fixed disc (42) into an inner chamber of the connection lid to define an air flow passage;
wherein, the air flow passage comprises an inner chamber of the connection lid (11) having a ring shape entrance between the inner wall of the connection lid (11) and the fixed disc (42) and an air outlet (111) in a center part of bottom of the connection lid (11), a plurality of air flow guide ways created by the plurality of air flow guide blades (41) in the inner chamber;
wherein, the nozzle housing (24) fixedly penetrates in a center of the fixed disc (42); the fixed disc (42) is provided with a plurality of connection parts (421), which are fixedly connected to the housing (1).

### Claim 2 (depends on 1)

The portable ultrafine nebulizer according to claim 1, wherein the nozzle housing (24) has a spray port (23) which comprises an enlarging part (231), a shrinking part (232) and a collecting part (233) distributed successively along a front-rear direction; the enlarging part (231) is a conical shape with a gradually decrease diameter along the front-rear direction, both the shrinking part (232) and the collecting part (233) is cylindrical shapes extended along the front-rear direction; the collecting part (233) has a larger diameter than the shrinking part (232), a top of the inner cavity (241) is a conical shape with a gradually increase diameter along the front-rear direction, a front end of the nozzle housing (24) is provided with an annular groove (242) at a periphery of the enlarging part (231), and the groove (242) has a trapezoid cross section in the radial direction.

### Claim 3 (depends on 1)

The portable ultrafine nebulizer according to claim 1, wherein the nozzle housing (24) of the atomizing nozzle (2) is threaded connected to the fixed disc (42) of the air flow guide device (4), or is integral with the fixed disc (42) of the air flow guide device (4).

### Claim 4 (depends on 1)

The portable ultrafine nebulizer according to claim 1, wherein the nebulizer further comprises a power supply battery (7) connected with the air turbine (3) and the water pump (5), and the power supply battery (7) is placed outside the housing (1).

### Claim 5 (depends on 1)

The portable ultrafine nebulizer according to claim 1, wherein the nozzle housing (24) has a trumpet-shaped external profile.