US3664360A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid flow control devices
Assignee: United Kingdom Atomic Energy Authority
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Filing: 1970-06-15
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Granted: 1972-05-23
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Expires: 1990-06-15
Abstract
Abstract A vortex amplifier with a chmber having co-axial inlet and outlet ducts. In the chamber is disposed a flow shaper body which confines fluid flow through the chamber to the outer part of the chamber. Flow directing means such as vanes are also disposed in the chamber so as to impart a rotary component of flow to fuild passing through the chamber. Control ports direct a control flow of fluid tangentially into the chamber to interact with fluid flow to which a rotary component has been applied.
Inventors
- 👤 Joseph Kenneth Royle
- 👤 John Grant
- 👤 Jack Alexander Golder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:39
CPC Classifications
F; F15; F15C; F15C1/00; F15C1/16; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/2087; Y10T137/2109; Y10T137/2273
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
102 words
A vortex amplifier comprising a chamber having co-axial inlet and outlet ducts for a main fluid flow, in which chamber is disposed a flow shaper body which confines fluid flow through the chamber to the outer part of said chamber, flow directing means disposed in the chamber for imparting a rotary component of flow to fluid passing through the chamber, and at least one control port for directing a control flow of fluid separate from the main fluid flow tangentially into the chamber to interact with main fluid flow to which a rotary component has been applied by said flow directing means.
Claim 2
Dependent Claim
102 words
A vortex amplifier comprising a chamber having co-axial inlet and outlet ducts for a main fluid flow, in which chamber is disposed a flow shaper body which confines fluid flow through the chamber to the outer part of said chamber, flow directing means disposed in the chamber for imparting a rotary component of flow to fluid passing through the chamber, and at least one control port for directing a control flow of fluid separate from the main fluid flow tangentially into the chamber to interact with main fluid flow to which a rotary component has been applied by said flow directing means.
Claim 3
Dependent Claim
38 words
A vortex amplifier as claimed in claim 1 wherein two sets of control ports are provided, one set for directing control flow in a clockwise direction and the other set for directing control flow in an anti-clockwise direction.
Claim 4
Dependent Claim
31 words
A vortex amplifier as claimed in claim 1 wherein the flow directing means includes vanes mounted above the flow shaper body and inclined relative to the longitudinal axis of the chamber.
Claim 5
Dependent Claim
19 words
A vortex amplifier as claimed in claim 1 wherein the outlet duct forms the throat of a flow diffuser.
Claim 6
Dependent Claim
33 words
A vortex amplifier as claimed in claim 4 wherein the converging section leading to the throat of the flow diffuser is radiused to minimize flow resistance under conditions of low resistance to flow.
Claim 7
Dependent Claim
61 words
A vortex amplifier as claimed in claim 5 wherein the surface of the flow shaper body is shaped to conform with the surface of the converging section leading to the throat of the flow diffuser and thereby to give a cross section to flow over said surfaces which minimizes expansion of flow until after the throat of the diffuser is reached.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-23 | 1975-11-22 | 1976-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-23 | 1979-11-22 | 1980-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-23 | 1983-11-22 | 1984-05-23 | $7700.00 | Window Closed / Lapsed |