Airflow-direction adjustment device

Patent metadata

Field	Value
Publication number	US-10155502-B2
Application number	US-201415107669-A
Country	US
Kind code	B2
Filing date	Dec 22, 2014
Priority date	Dec 24, 2013
Publication date	Dec 18, 2018
Grant date	Dec 18, 2018

Abstract

The present invention is a spray nozzle including a nozzle having a supply port receiving liquid and a spray orifice through which liquid is sprayed, wherein the nozzle is made by combining a plurality of nozzle-divided bodies, each of the plurality of nozzle-divided bodies having a vane element integrally formed therein to rotate the liquid provided from the supply port.

First claim

What is claimed is:

1. A spray nozzle comprising:
a nozzle including
a pair of nozzle-divided bodies stacked together;
a supply port formed from the pair of nozzle-divided bodies, for receiving liquid; and
a spray orifice formed from the pair of nozzle-divided bodies and communicating with the supply port, for spraying the liquid,

wherein each of the pair of nozzle-divided bodies has
a flow path element extending from the supply port to the spray orifice for guiding the liquid in a flow direction,
a vane element integrally formed in the flow path element, and including
a blocking portion extending obliquely with respect to a direction of the flow path element and entirely across the flow path element, for blocking the liquid from the supply port to the spray orifice, and
a penetrating portion penetrating the blocking portion, for guiding the liquid from the supply port to the spray orifice,

a spray orifice element forming the spray orifice and arranged downstream of the vane element, the spray orifice element being an opening communicating with the supply port through the flow path element and having a shape of a half of a substantially conical shape with a diameter increasing toward a downstream of the nozzle, and
a flat surface portion arranged downstream of the spray orifice element, for dispersing the liquid, the flat surface portion including a groove and another groove, for guiding the liquid from the spray orifice element, arranged opposite to each other with respect to a center axis of the nozzle and inclined away from each other toward a downstream side of the nozzle,

the vane elements are configured so that the liquid flows along the blocking portions and through the penetrating portions to rotate the liquid provided from the supply port toward the spray orifice, and
in a state in which the pair of nozzle-divided bodies is stacked together, the flat surface portions are arranged parallel to and spaced apart from each other to form a space therebetween for spraying the liquid from the spray orifice along a lateral direction, and the grooves on inner sides of the flat surface portions facing each other and the another grooves on the inner sides of the flat surface portions facing each other guide the liquid from the spray orifice.

2. The spray nozzle according to claim 1 , wherein
one of the nozzle-divided bodies is formed with one of a projection portion and a recessed portion capable of engaging with each other, and
the other of the nozzle-divided bodies is formed with the other of the projection portion and the recessed portion.

3. The spray nozzle according to claim 1 , wherein
the nozzle is attached to a nozzle body,
one of the nozzle body and the nozzle is formed with one of an engagement portion and an engagement receiving portion capable of engaging with each other, and
the other of the nozzle body and the nozzle is formed with the other of the engagement portion and the engagement receiving portion.

4. The spray nozzle according to claim 1 , wherein
the nozzle is attached to a nozzle body,
one of the nozzle body and the nozzle is formed with one of a welding portion and a welding receiving portion capable of being welded with each other, and
the other of the nozzle body and the nozzle is formed with the other of the welding portion and the welding receiving portion.

5. The spray nozzle according to claim 1 , wherein the blocking portions of the pair of nozzle-divided bodies incline opposite to each other in respect to the center axis of the nozzle.

6. The spray nozzle according to claim 1 , wherein the blocking portions of the pair of nozzle-divided bodies intersect each other and form spaces between the pair of nozzle-divided bodies to allow the liquid from the supply port to flow therethrough and form a swirling flow toward the spray orifice.

7. The spray nozzle according to claim 1 , wherein each of the blocking portions inclines with respect to the center axis of the nozzle, and each of the penetrating portions is formed on the blocking portion at a position deviating from the center axis.

8. The spray nozzle according to claim 1 , wherein the groove and the another groove are concaves formed on the inner side of the flat surface portion.

9. The spray nozzle according to claim 8 , further comprising a center groove extending linearly along the direction of the flow path at a center portion of the flat surface portion,
wherein the groove and the another groove extend linearly at sides of the center groove and are inclined with respect to the center groove.

10. The spray nozzle according to claim 9 , wherein the flat surface portion is spread laterally toward the downstream side of the nozzle so that the liquid from the spray orifice is sprayed along the lateral direction.

11. A spray nozzle comprising:
a nozzle including
a pair of nozzle-divided bodies stacked together;
a supply port formed from the pair of nozzle-divided bodies, for receiving liquid; and
a spray orifice formed from the pair of nozzle-divided bodies and communicating with the supply port, for spraying the liquid,

wherein each of the pair of nozzle-divided bodies has
a flow path element extending from the supply port to the spray orifice for guiding the liquid in a flow direction,
a vane element integrally formed in the flow path element, and including
a blocking portion extending obliquely with respect to a direction of the flow path element and entirely across the flow path element, for blocking the liquid from the supply port to the spray orifice, and
a penetrating portion penetrating the blocking portion, for guiding the liquid from the supply port to the spray orifice,

a spray orifice element forming the spray orifice and arranged downstream of the vane element, the spray orifice element being an opening communicating with the supply port through the flow path element and having a shape of a half of a substantially conical shape with a diameter increasing toward a downstream of the nozzle, and
a flat surface portion arranged downstream of the spray orifice element, for dispersing the liquid, the flat surface portion including a groove for guiding the liquid from the spray orifice element,

the vane elements are configured so that the liquid flows along the blocking portions and through the penetrating portions to rotate the liquid provided from the supply port toward the spray orifice,
in a state in which the pair of nozzle-divided bodies is stacked together, the flat surface portions are arranged parallel to and spaced apart from each other to form a space therebetween for spraying the liquid from the spray orifice along a lateral direction and the grooves on inner sides of the flat surface portions facing each other guide the liquid from the spray orifice,
the blocking portions of the pair of nozzle-divided bodies incline opposite to each other in respect to a center axis of the nozzle,
the blocking portions of the pair of nozzle-divided bodies intersect each other and form spaces between the pair of nozzle-divided bodies to allow the liquid from the supply port to flow therethrough and form a swirling flow toward the spray orifice,
each of the blocking portions inclines with respect to the center axis of the nozzle, and each of the penetrating portions is formed on the blocking portion at a position deviating from the center axis
the flat surface portion further comprises another groove for guiding the liquid from the spray orifice element, and
the groove and the another groove of the flat surface portion are arranged opposite to each other with respect to the center axis of the nozzle and inclined away from each other toward a downstream side of th

Assignees

• Nifco Inc

Inventors

• Yuda Shuichi

Classifications

• B05B1/10

  in the form of a fine jet, e.g. for use in wind-screen washers · CPC title

• B05B1/341

  before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet · CPC title

• B60S1/52 Primary

  Arrangement of nozzles; {Liquid spreading means}(nozzles per se B05B) · CPC title

• B05B1/3415

  with swirl imparting inserts upstream of the swirl chamber · CPC title

• B05B1/042

  Outlets having two planes of symmetry perpendicular to each other, one of them defining the plane of the jet (B05B1/044, B05B1/046 take precedence) · CPC title