当前申请(专利权)人地址：
811 4th Street, West Des Moines 50265, Iowa, United States of America
摘要：
A swirler 200 comprising a swirler body defining a longitudinal axis and a stack of swirler plates 210 assembled to the swirler body stacked in a direction along the longitudinal axis, wherein each of the swirl plates defines a vane portion and wherein the swirler plates are mounted rotated circumferentially about the longitudinal axis relative to neighbouring ones of the swirler plates so the vane portions form a swirler vane. Each swirler plate defines a swirl passage 212 therethrough, and wherein the swirl passage of each successive swirler plate has a reduced size relative to that of a preceding one of the swirler plates in the direction along the longitudinal axis to define a converging swirl flow path through the stack of swirler plates.
权利要求：
Claims:
1. A swirler (100) comprising:
a swirler body defining a longitudinal axis; and
a stack of swirler plates (108, 110) assembled to the swirler body stacked in a direction along the longitudinal axis, wherein each of the swirl plates defines a vane portion (114), and wherein the swirler plates are mounted rotated circumferentially about the longitudinal axis relative to neighboring ones of the swirler plates so the vane portions (114) form a swirler vane; wherein each swirler plate defines a swirl passage therethrough, and wherein the swirl passage of each successive swirler plate has a reduced size relative to that of a preceding one of the swirler plates in the direction along the longitudinal axis to define a converging swirl flow path through the stack of swirler plates.
2. The swirler as recited in claim 1, wherein each of the swirler plates includes a plurality of vane portions, and wherein respective vane portions of the swirler plates form a plurality of respective swirler vanes.
3 The swirler as recited in claim 1, wherein each of the swirler plates includes a peripheral ring, wherein the vane portions of the swirler plates extend radially inward from the respective peripheral rings.
4. The swirler as recited in claim 1, wherein each swirler plate includes at least one alignment tongue engaged with an alignment groove defined in the swirler body for registration of the swirler plates to form the swirler vane.
S. The swirler as recited in claim 3, wherein the alignment tongue of each swirler plate is positioned circumferentially relative to the respective vane portion in a circumferential location common to all of the swirler plates, and wherein the alignment grove of the swirler body is profiled to define the swirler vane by registration of the alignment tongues with the alignment groove.
6. The swirler as recited in claim 1, wherein the swirler body defines an annular flow passage therethrough, wherein the stack of swirler plates is mounted within the annular flow passage to impart swirl on fluids flowing through the annular flow passage.
7 A nozzle comprising;
a nozzle body including a swirler as recited in claim 1, wherein the swirler defines an air circuit, and wherein the nozzle body defines a liquid circuit, and wherein the liquid and air circuits are configured for air blast atomization of a spray issued form the liquid circuit.
8. The nozzle as recited in claim 7, wherein the air circuit is an inner air circuit inboard of the liquid circuit.
9. The nozzle as recited in claim 7, wherein the air circuit is an outer air circuit outboard of the liquid circuit.
10. A method of making the swirler of claim 1 comprising;
engaging a stack of swirler plates with a swirler body defining a longitudinal axis with each swirler plate rotated circumferentially about the longitudinal axis relative to neighboring ones of the swirler plates so vane portions of the swirler plates form one or more swirler vanes.
11. The method as recited in claim 10, further comprising forming the stack of swirler plates with the plates stacked using at least one of electrical discharge machining, water jet machining, conventional cutting, sheet metal processing, laser cutting, metal injection molding (MIM), additive manufacturing or regular sintering, and/or etching to form one or more flow passages through the stack.
12. The method as recited in claim 10, wherein engaging the stack of swirler plates includes sliding the stack of swirler plates into engagement with an alignment groove of the swirler body followed by joining of one or more of the swirler plates to the swirler body to secure the stack of swirler plates to the swirler body.