US4190078A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for converting of spin flow energy into pressure energy
Assignee: Airbus Defence and Space GmbH
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Filing: 1977-05-27
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Granted: 1980-02-26
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Expires: 1997-05-27
Abstract
Abstract The present apparatus is constructed to convert or reconvert spin flow energy into pressure energy. For this purpose a conduit forms a chamber intermediate the ends of the conduit. The chamber and a flow control member operatively supported in the chamber are of rotational symmetry and so shaped that predetermined flow passage configurations are accomplished which facilitate the conversion of the spin flow into an axial flow.
Inventors
- 👤 Ernst-August Bielefeldt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:00
CPC Classifications
F; F15; F15D; F15D1/00; F15D1/0015; A; A61; A61P; A61P37/00; A61P37/08; B; B04; B04C; B04C3/00; B04C3/06; C; C07; C07C; C07C243/00; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/2087; Y10T137/2093; Y10T137/8593
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
245 words
An apparatus for recovering spin flow energy wherein a spin flow is converted into a parallel flow, comprising conduit means having inlet port means for said spin flow and outlet port means for said parallel flow, chamber means located in said conduit means intermediate said inlet port means and said outlet port means and having a configuration of rotational symmetry, a central member also having a shape of rotational symmetry operatively supported in said chamber means, said central member and said chamber means being dimensioned and shaped relative to each other so as to include the following flow passage components therebetween, a first flow passage component providing a smooth transition from an axial flow direction into a substantially radially outward flow direction, a second flow passage component operatively connected to said first flow passage component and constituting a plate diffuser, a third flow passage component operatively connected to said second flow passage component and constituting an annular deflection zone, a fourth flow passage component operatively connected to said third flow passage component and forming a guide zone to cause a substantially inward flow direction, and a fifth flow passage component operatively connected to said fourth flow passage component and constituting a smooth transition from said inward flow direction into an axial flow direction toward said outlet port means whereby said flow passage components are arranged in the recited sequence as viewed in the flow direction from said inlet port means to said outlet port means.
Claim 2
Independent Claim
245 words
An apparatus for recovering spin flow energy wherein a spin flow is converted into a parallel flow, comprising conduit means having inlet port means for said spin flow and outlet port means for said parallel flow, chamber means located in said conduit means intermediate said inlet port means and said outlet port means and having a configuration of rotational symmetry, a central member also having a shape of rotational symmetry operatively supported in said chamber means, said central member and said chamber means being dimensioned and shaped relative to each other so as to include the following flow passage components therebetween, a first flow passage component providing a smooth transition from an axial flow direction into a substantially radially outward flow direction, a second flow passage component operatively connected to said first flow passage component and constituting a plate diffuser, a third flow passage component operatively connected to said second flow passage component and constituting an annular deflection zone, a fourth flow passage component operatively connected to said third flow passage component and forming a guide zone to cause a substantially inward flow direction, and a fifth flow passage component operatively connected to said fourth flow passage component and constituting a smooth transition from said inward flow direction into an axial flow direction toward said outlet port means whereby said flow passage components are arranged in the recited sequence as viewed in the flow direction from said inlet port means to said outlet port means.
Claim 3
Dependent Claim
15 words
The apparatus of claim 1, further comprising guide means operatively positioned in said guide zone.
Claim 4
Dependent Claim
24 words
The apparatus of claim 2, wherein said guide means include guide vanes having rear edges located in respective meridional planes of said central member.
Claim 5
Dependent Claim
36 words
The apparatus of claim 2, wherein said guide means comprise guide vanes having such a shape that the flow cross sectional area within said guide zone diminishes in the downstream direction toward said outlet port means.
Claim 6
Dependent Claim
41 words
The apparatus of claim 2, wherein said guide means comprise guide vanes having such a shape that the flow cross sectional area within said guide zone remains substantially constant in the downstream direction over a given length of said guide zone.
Claim 7
Dependent Claim
24 words
The apparatus of claim 2, wherein said guide means comprise such a shape that the flow cross sectional area increases in the downstream direction.
Claim 8
Dependent Claim
21 words
The apparatus of claim 1, wherein said guide zone comprises a flow cross sectional area which diminishes in the downstream direction.
Claim 9
Dependent Claim
31 words
The apparatus of claim 1, wherein said guide zone comprises a flow cross sectional area which remains substantially constant in the downstream direction over a given length of said guide zone.
Claim 10
Dependent Claim
21 words
The apparatus of claim 1, wherein said guide zone comprises a flow cross sectional area which increases in the downstream direction.
Claim 11
Dependent Claim
39 words
The apparatus of claim 1, wherein said central member has a substantially conical extension pointing toward said outlet port means, said conical extension and said conduit means forming diffuser means, said guide zone merging directly into said diffuser means.
Claim 12
Dependent Claim
19 words
The apparatus of claim 10, wherein said substantially conical extension of said central member has a curved outer contour.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-02-25 | 1983-08-27 | 1984-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-02-25 | 1987-08-27 | 1988-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-02-25 | 1991-08-27 | 1992-02-26 | $7700.00 | Window Closed / Lapsed |