Patent US3692245A successfully refreshed from Google Patents.
US3692245A
Expired / Lapsed
US
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Fluid atomizers
Assignee: Spectus Energy Ltd
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Filing: 1971-01-15
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Granted: 1972-09-19
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Expires: 1991-01-15
Abstract
Abstract The invention comprehends a fluid atomizer comprising an atomizer nozzle having a discharge orifice communicating with a cavity in said nozzle of convergent axial section towards said discharge orifice, and a swirler insert snugly fitted in said cavity and having an axial section complementary thereto, said swirler insert being axially spaced from said discharge orifice to define between the smaller cross sectional end of said swirler insert and said discharge orifice a swirl chamber forming part of said cavity, said swirler insert having a plurality of passages extending in and along its peripheral wall to provide for fluid flow, between the interfitting peripheral surfaces of said atomizer nozzle and said swirler insert, through said passages each of said passages extending at its discharge end adjacent said swirl chamber in a direction generally tangential of said chamber, so that fluid emerging from said discharge end will flow in an axial direction generally following the peripheral surface of said swirl chamber and tangentially thereto.
Inventors
- 👤 Arthur Michael Needham
- 👤 David Tindall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:28
CPC Classifications
B; B05; B05B; B05B1/00; B05B1/34; B05B1/3405; B05B1/341; B05B1/3484; B05B1/3421; B05B1/3431; B05B1/3442
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
220 words
A fluid atomizer, comprising a. an atomizer nozzle having a discharge orifice communicating with a cavity in said nozzle of convergent axial section towards said discharge orifice; b. a swirler insert snugly fitted in said cavity and having an axial section complementary thereto, said swirler insert being axially spaced from said discharge orifice to define between the smaller cross sectional end of said swirler insert and said discharge orifice a swirl chamber forming part of said cavity, said swirler insert having a plurality of passages extending in and along its peripheral wall to provide for fluid flow between the interfitting peripheral surfaces of said atomizer nozzle and said swirler insert, and through said passages, each of said passages extending at its discharge end adjacent said swirl chamber in a direction generally tangential of said chamber, so that fluid emerging from said discharge end will flow in an axial direction generally following the peripheral surface of said swirl chamber and tangentially thereto; c. and means clamping said swirler insert within said atomizer nozzle, said clamping means including 1. flow tube means externally threaded at one end; and 2. a capnut threadably connected with said flow tube means and in engagement with said atomizer nozzle to clamp said atomizer nozzle and said swirler insert against one end of said flow tube means.
Claim 2
Dependent Claim
220 words
A fluid atomizer, comprising a. an atomizer nozzle having a discharge orifice communicating with a cavity in said nozzle of convergent axial section towards said discharge orifice; b. a swirler insert snugly fitted in said cavity and having an axial section complementary thereto, said swirler insert being axially spaced from said discharge orifice to define between the smaller cross sectional end of said swirler insert and said discharge orifice a swirl chamber forming part of said cavity, said swirler insert having a plurality of passages extending in and along its peripheral wall to provide for fluid flow between the interfitting peripheral surfaces of said atomizer nozzle and said swirler insert, and through said passages, each of said passages extending at its discharge end adjacent said swirl chamber in a direction generally tangential of said chamber, so that fluid emerging from said discharge end will flow in an axial direction generally following the peripheral surface of said swirl chamber and tangentially thereto; c. and means clamping said swirler insert within said atomizer nozzle, said clamping means including 1. flow tube means externally threaded at one end; and 2. a capnut threadably connected with said flow tube means and in engagement with said atomizer nozzle to clamp said atomizer nozzle and said swirler insert against one end of said flow tube means.
Claim 3
Dependent Claim
33 words
a capnut threadably connected with said flow tube means and in engagement with said atomizer nozzle to clamp said atomizer nozzle and said swirler insert against one end of said flow tube means.
Claim 4
Dependent Claim
33 words
a capnut threadably connected with said flow tube means and in engagement with said atomizer nozzle to clamp said atomizer nozzle and said swirler insert against one end of said flow tube means.
Claim 5
Dependent Claim
22 words
A fluid atomizer is claimed in claim 1, wherein said cavity is of conical configuration and said swirler insert is also conical.
Claim 6
Dependent Claim
24 words
A fluid atomizer as claimed in claim 2, wherein the cross sectional area of each of said passages decreases towards said discharge end thereof.
Claim 7
Dependent Claim
21 words
A fluid atomizer as claimed in claim 3, wherein each of said passages decreases in width towards said discharge end thereof.
Claim 8
Dependent Claim
21 words
A fluid atomizer as claimed in claim 3, wherein each of said passages decreases in depth towards said discharge end thereof.
Claim 9
Dependent Claim
29 words
A fluid atomizer as claimed in claim 1, wherein each of said passages at its inlet end extends in a direction parallel to the axis of said swirler insert.
Claim 10
Dependent Claim
31 words
A fluid atomizer as claimed in claim 1, wherein each of said passages is curved and the rate of change of curvature thereof is constant through the length of the passage.
Claim 11
Dependent Claim
19 words
A fluid atomizer as claimed in claim 1, wherein each of said passages at its inlet end is radiused.
Claim 12
Dependent Claim
66 words
Apparatus as defined in claim 1, wherein said swirler insert contains a central axial passage, and further wherein said flow tube means includes a pair of concentrically spaced inner and outer flow tubes that define therebetween a flow path to the inlet end of each of said passages, said inner flow tube defining therein a flow path from said swirl chamber via said central axial passage.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-19 | 1976-03-20 | 1976-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-19 | 1980-03-20 | 1980-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-19 | 1984-03-20 | 1984-09-19 | $7700.00 | Window Closed / Lapsed |