Patent US3772992A successfully refreshed from Google Patents.
US3772992A
Expired / Lapsed
US
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Turbine alternator utilizing fluid bearings
Assignee: United States Department of the Army
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Filing: 1971-03-31
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Granted: 1973-11-20
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Expires: 1991-03-31
Abstract
Abstract A turbine alternator for use in ordnance projectiles that obviates the need for mechanical bearings as journal means therefor. The moving part of the alternator is maintained in the proper position by a pressure differential created by the ram pressure developed by the projectile as it moves through the fluid medium in accordance with a well-known law of physics known as Bernoulli''s Principle. The electrical output from the alternator can be used as a power source in a conventional bomb, rocket or similar projectile. The elimination of the expensive and fragile mechanical bearings provides an unlimited operational life for the alternator.
Inventors
- 👤 W Moore
- 👤 P Ingersoll
- 👤 A Richter
- 👤 W Kieffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:29
CPC Classifications
F; F42; F42C; F42C11/00; F42C15/00; F42C15/28; F42C15/295
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
104 words
An electrical power source for use in ordnance projectiles which comprises: a. a front housing having an input port formed therein for receiving fluid flow; b. a rear housing fitted with said front housing to form a substantially enclosed volume therebetween; c. a turbine rotator located within said enclosed volume and driven by said fluid flow, the axial support of said rotator within said inclosed volume being adapted for positional control by an air cushion formed within said enclosed volume due to said fluid flow, and d. means located within said enclosed volume for transducing the rotation of said turbine rotator into electrical energy.
Claim 2
Dependent Claim
104 words
An electrical power source for use in ordnance projectiles which comprises: a. a front housing having an input port formed therein for receiving fluid flow; b. a rear housing fitted with said front housing to form a substantially enclosed volume therebetween; c. a turbine rotator located within said enclosed volume and driven by said fluid flow, the axial support of said rotator within said inclosed volume being adapted for positional control by an air cushion formed within said enclosed volume due to said fluid flow, and d. means located within said enclosed volume for transducing the rotation of said turbine rotator into electrical energy.
Claim 3
Dependent Claim
18 words
The device according to claim 1 wherein said rear housing further comprises a stabilizing guide hole formed therein.
Claim 4
Dependent Claim
60 words
The device according to claim 2 wherein said turbine rotator comprises a base plate to which are affixed: a. a plurality of turbine fins located around the peripherey of said base plate; b. a stabilizing shaft adapted to fit within said stabilizing guide hole and free to move axially therein; and c. a permanent magnet from which said shaft extends.
Claim 5
Dependent Claim
17 words
The device according to claim 3 wherein said turbine rotator is circularly symmetrical about said stabilizing shaft.
Claim 6
Dependent Claim
55 words
The device according to claim 4 wherein said transducing means comprises an iron stator ring wound with a coil and having a pair of pole pieces formed thereon, said pole pieces located in close proximity to said magnet whereby upon rotation of said rotator an alternating current is induced in the windings of said coil.
Claim 7
Dependent Claim
92 words
An electrical power source for use in ordnance projectiles which comprises: a. an input duct adapted to receive fluid flow and transmit it to a substantially enclosed volume upon the launching of said projectile; b. a turbine rotator located within said enclosed volume and driven by said fluid flow, the axial support of said rotator within said enclosed volume being adapted for positional control by an air cushion formed within said enclosed volume due to said fluid flow; and c. means for transducing the rotation of said turbine rotator into electrical energy.
Claim 8
Dependent Claim
92 words
An electrical power source for use in ordnance projectiles which comprises: a. an input duct adapted to receive fluid flow and transmit it to a substantially enclosed volume upon the launching of said projectile; b. a turbine rotator located within said enclosed volume and driven by said fluid flow, the axial support of said rotator within said enclosed volume being adapted for positional control by an air cushion formed within said enclosed volume due to said fluid flow; and c. means for transducing the rotation of said turbine rotator into electrical energy.
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) | 1976-11-19 | 1977-05-21 | 1977-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-19 | 1981-05-21 | 1981-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-19 | 1985-05-21 | 1985-11-20 | $7700.00 | Window Closed / Lapsed |