US4473185A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and device for producing microdroplets of fluid
Assignee: Individual
•
Filing: 1980-10-24
•
Granted: 1984-09-25
•
Expires: 2000-10-24
Abstract
Abstract To produce microdroplets of fluid a liquid jet is injected centrally into an atomizer chamber with the formation of a spray cone and there it is acted upon by an outer spiral-shaped gas flow. To further reduce the size of the droplets, same are introduced into a transport or reaction chamber of short structural length and carried through same by a further spiral-shaped gas flow. Preferably, the transport or reaction chamber is lined by a pot-shaped container, the fluid droplets entering the transport or reaction chamber at the front side opposite an open end thereof. The method or the arrangement for applying the method is particularly suitable for a practically soot free combustion of combustible fluids, particularly oil.
Inventors
- 👤 Folke K. Peterson
- 👤 Kurt L. Skoog
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:35
CPC Classifications
F; F23; F23C; F23C7/00; F23C7/02; B; B05; B05B; B05B7/00; B05B7/02; B05B7/04; B05B7/0416; B05B7/0441; B05B7/0466; B05B7/0475; B05B7/10; F23C3/00; F23C3/006; F23D; F23D11/00; F23D11/10; F23D11/101; F23D11/105
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
106 words
A method for producing microdroplets of fluid, comprising: injecting a fluid through an opening into an atomizer chamber in a flow pattern including a substantially hollow spray cone, directing said fluid spray cone into a confining transfer chamber, introducing an external gas flow onto said spray cone in a flow path approximately in a concentric and spiral-shaped configuration in relation to the theoretical axis of the spray cone and downstream from the entry opening of the confining transfer chamber and thereby creating a reduced pressure about the spray cone, said gas flow impinging on and breaking up said spray cone for producing microdroplets of said fluid.
Claim 2
Independent Claim
106 words
A method for producing microdroplets of fluid, comprising: injecting a fluid through an opening into an atomizer chamber in a flow pattern including a substantially hollow spray cone, directing said fluid spray cone into a confining transfer chamber, introducing an external gas flow onto said spray cone in a flow path approximately in a concentric and spiral-shaped configuration in relation to the theoretical axis of the spray cone and downstream from the entry opening of the confining transfer chamber and thereby creating a reduced pressure about the spray cone, said gas flow impinging on and breaking up said spray cone for producing microdroplets of said fluid.
Claim 3
Independent Claim
185 words
A device for producing microdroplets of fluid including: an atomizing chamber, a small fluid tube (10) terminating in said atomizer chamber (12), at least one gas inlet passage (16) provided at a radial distance from the small tube opening (14) to establish a gas flow into said atomizing chamber and constructed and arranged to engage and impart a spiral-shaped motion to the gas introduced into the atomizer chamber and to create a spray cone into an outlet opening, a generally tubular transport chamber (20) having an inlet opening connected to said outlet opening of said atomizer chamber for receiving said spray cone from said atomizer chamber, said transport chamber including a plurality of gas entry openings (24) located downstream from said inlet opening and provided at a radial distance from the inlet opening of the transport chamber for said spray cone said opening being constructed and arranged with an oblique angle to the radial line of said spray cone and imparting on the gas of said spray cone introduced into the transport chamber (20) a concentric and spiral-shaped motion in relation to the inlet opening.
Claim 4
Independent Claim
185 words
A device for producing microdroplets of fluid including: an atomizing chamber, a small fluid tube (10) terminating in said atomizer chamber (12), at least one gas inlet passage (16) provided at a radial distance from the small tube opening (14) to establish a gas flow into said atomizing chamber and constructed and arranged to engage and impart a spiral-shaped motion to the gas introduced into the atomizer chamber and to create a spray cone into an outlet opening, a generally tubular transport chamber (20) having an inlet opening connected to said outlet opening of said atomizer chamber for receiving said spray cone from said atomizer chamber, said transport chamber including a plurality of gas entry openings (24) located downstream from said inlet opening and provided at a radial distance from the inlet opening of the transport chamber for said spray cone said opening being constructed and arranged with an oblique angle to the radial line of said spray cone and imparting on the gas of said spray cone introduced into the transport chamber (20) a concentric and spiral-shaped motion in relation to the inlet opening.
Claim 5
Dependent Claim
62 words
The device of claim 2 wherein said transport chamber includes an outer wall (28) having an outer opening (24), a tube (30) inserted into said outer opening (24), said tube projecting inwardly of the outer wall (28) such that the spray cone carried through the transport chamber by the spiral-shaped gas flow is spaced from the inner surface of said lateral wall.
Claim 6
Dependent Claim
21 words
The device of claim 3 wherein said tube (30) is adjustably mounted for controlling the projection into the transport chamber (20).
Claim 7
Dependent Claim
18 words
The device of claim 2 wherein said opening (24) is angularly oriented in the direction of the flow.
Claim 8
Dependent Claim
49 words
The device of claim 2 having a distributing unit (32) mounted in the transport chamber (20) in spaced relation to the inlet opening (22) for establishing a radial dispersion and substantially equal distribution of the droplets introduced into the transport chamber over the cross-sectional flow path within the chamber.
Claim 9
Dependent Claim
17 words
The device of claim 6 wherein said distribution unit (32) is a plate having a convex surface.
Claim 10
Dependent Claim
29 words
The device of claim 2 including dark, heat absorbing radiator units (34) located behind the transport chamber (20) and radiating heat absorbed by the mixture of droplets and gas.
Claim 11
Dependent Claim
51 words
The device according to claim 8 wherein a first tube member is mounted to the transport chamber and extends therefrom to an outer end, and said radiator unit is a tube section located concentrically within said first tube member (42) and located adjacent the outer end of said first tube member.
References Cited (Backward Citations)
US2047570A
Cited
US2254123A
Cited
GB570066A
Cited
US3330267A
Cited
DE1551728A1
Cited
US3758258A
Cited
US3734677A
Cited
US3758259A
Cited
SU525837A1
Cited
GB1497832A
Cited
US4105163A
Cited
US4120640A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-09-25 | 1988-03-26 | 1988-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-09-25 | 1992-03-26 | 1992-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-09-25 | 1996-03-26 | 1996-09-25 | $7700.00 | Window Closed / Lapsed |