GB1101748A - Thermionic generator - Google Patents
Thermionic generatorInfo
- Publication number
- GB1101748A GB1101748A GB19806/64A GB1980664A GB1101748A GB 1101748 A GB1101748 A GB 1101748A GB 19806/64 A GB19806/64 A GB 19806/64A GB 1980664 A GB1980664 A GB 1980664A GB 1101748 A GB1101748 A GB 1101748A
- Authority
- GB
- United Kingdom
- Prior art keywords
- wires
- anodes
- collector
- metal
- strip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J45/00—Discharge tubes functioning as thermionic generators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N3/00—Generators in which thermal or kinetic energy is converted into electrical energy by ionisation of a fluid and removal of the charge therefrom
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Solid Thermionic Cathode (AREA)
- Electron Sources, Ion Sources (AREA)
Abstract
1,101,748. Thermionic generators. NATIONAL RESEARCH DEVELOPMENT CORPORATION. 12 May, 1965 [12 May, 1964], No. 19806/64. Heading HID. A controllable thermionic generator includes a plurality of auxiliary anodes located within, or at the boundary of, the emitter-collector discharge space, the total area of the auxiliary anodes being less than one-thousandth of the area of the emitter. The anodes are preferably energized with positive pulses, e.g. of 1-5 microsecond duration at a 5 to 10 Kc./s. repetition rate, such that they operate under transient rather than steady state conditions, whereby an improved ratio of collector to auxiliary current may be obtained. The anodes number 1 to 4 per cm.<SP>2</SP> of emitter surface, and preferably have resistors in series to ensure a distribution of the auxiliary discharge over the whole plurality. To prepare an anode assembly a right-angle section metal strip is coated first with insulant-alumina or enamelexcept in regions 8, Fig. 5c, and then over the interior of the angle, with a resistive layer of nickel/chromium alloy 9. Tungsten, molybdenum, or tantalum wires 3, welded to a metal tape 10, are then introduced into the angle, which is closed to clamp them, Fig. 5g, whereafter the tape is cut off and the wires cut to length, and the assembly, except for the wires, resprayed with insulant. The wires 3 are located mid-way between successive conductive portions 8, whereby the lead to each wire is constituted by the angled strip, and two sections of the resistive layer 9 in parallel. If resistors in series with the anodes are not required, tape 10 itself may be clamped within the angled strip, to form the lead for the wires which project outwardly therefrom. A plurality of such linear assemblies may be seated in parallel grooves formed in the collector surface (Fig. 7, not shown), to form an array of wires both projecting and insulated from the collector surface, the assemblies being connected to a common tantalum lead which is insulated with a ceramic cement, or by anodizing. Alternatively, the resistive layer may be applied to only one of the inner faces of the insulantcovered metal strip, the anodes being constituted by patches of refractory metal or by metal plates 13, Fig. 6, exposed beneath perforations 12 formed in the other face of the strip; the completed assembly can be held flat on the collector surface by metal strips welded across it, and may be wound as a helix (Fig. 8, not shown) on the outer surface of a tubular, coolant-carrying collector. In a further arrangement (Figs. 1 and 2, not shown); the wires constituting the anodes pass through enamel beads in the envelope, which forms the collector electrode and is immersed in coolant; the wires may be either ground flush with the collector surface, or project therefrom, and have their ends sharpened by electrolytic etching. The tube contains argon, krypton, or xenon, and possibly a metal vapour, at a pressure of 0À1 to 5 torr, and the emittercollector spacing is about 2 mm.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB19806/64A GB1101748A (en) | 1964-05-12 | 1964-05-12 | Thermionic generator |
US454319A US3402313A (en) | 1964-05-12 | 1965-05-10 | Thermionic generator having auxiliary anodes in the main discharge space |
FR16588A FR1462980A (en) | 1964-05-12 | 1965-05-11 | Controllable thermionic generators |
BE663750A BE663750A (en) | 1964-05-12 | 1965-05-11 | |
NL6505925A NL6505925A (en) | 1964-05-12 | 1965-05-11 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB19806/64A GB1101748A (en) | 1964-05-12 | 1964-05-12 | Thermionic generator |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1101748A true GB1101748A (en) | 1968-01-31 |
Family
ID=10135539
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB19806/64A Expired GB1101748A (en) | 1964-05-12 | 1964-05-12 | Thermionic generator |
Country Status (4)
Country | Link |
---|---|
US (1) | US3402313A (en) |
BE (1) | BE663750A (en) |
GB (1) | GB1101748A (en) |
NL (1) | NL6505925A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA897238A (en) * | 1969-08-29 | 1972-04-04 | Her Majesty The Queen In Right Of Canada As Represented By The Minister Of National Defence Of Her Majesty's Canadian Government | Energization of molecular gas laser for mode and scatter control |
FR2120191A5 (en) * | 1970-03-23 | 1972-08-18 | Comp Generale Electricite | |
US3767968A (en) * | 1971-10-06 | 1973-10-23 | Burroughs Corp | Panel-type display device having display cells and auxiliary cells for operating them |
US5034651A (en) * | 1990-02-23 | 1991-07-23 | Eltex-Electrostatik-Gmbh | High-voltage electrode |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29854C (en) * | PH. KOCH in Neufs | Belt connector | ||
US2239694A (en) * | 1939-02-04 | 1941-04-29 | Electronic Res Corp | Electric discharge electrodes and circuit arrangements therefor |
US2607016A (en) * | 1950-05-19 | 1952-08-12 | Paul A Kennebeck | Electrode structure for vacuum tubes |
US2697800A (en) * | 1951-01-16 | 1954-12-21 | Sylvania Electric Prod | Electric discharge device |
US2959704A (en) * | 1958-10-09 | 1960-11-08 | Gen Electric | Overvoltage protective device |
US3021472A (en) * | 1958-12-15 | 1962-02-13 | Rca Corp | Low temperature thermionic energy converter |
US3112863A (en) * | 1960-10-06 | 1963-12-03 | Cons Vacuum Corp | Ion pump |
US3238395A (en) * | 1962-04-05 | 1966-03-01 | Douglas Aircraft Co Inc | Cathode for thermionic energy converter |
-
1964
- 1964-05-12 GB GB19806/64A patent/GB1101748A/en not_active Expired
-
1965
- 1965-05-10 US US454319A patent/US3402313A/en not_active Expired - Lifetime
- 1965-05-11 BE BE663750A patent/BE663750A/xx unknown
- 1965-05-11 NL NL6505925A patent/NL6505925A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
US3402313A (en) | 1968-09-17 |
BE663750A (en) | 1965-09-01 |
NL6505925A (en) | 1965-11-15 |
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