Nova Patents
US2289984A

Air cooler for power tubes

Abstract

This record has no abstract on file.

US2289984A, drawing sheet 1
Sheet 1 of 12

Term

Term ended

Expired 12 July 1960, 66.2 years ago.

  1. Priority and filed
  2. Granted
  3. Expired
  4. Today

9 claims: 9 independent, 0 dependent

  1. 1
    We claim:1. A cooling device for a discharge device having an exterior anode, comprising a plurality of stacked plates having an opening for said anode, 40 said plates having a portion forming a core body about said anode, said plates having integral fins extending alternately in a lateral direction from said core body.
  2. 2
    A cooling device for a discharge device hav45 ing an exterior anode, comprising a plurality of stacked plates having off-set openings for said anode, each of said plates having an integral portion extending in one direction beyond and contrary to its adjacent plates. r»>
  3. 3
    A cooling device for a curved end cylindrical exterior anode, comprising a plurality of plates having an opening therein for said anode, said plates having projections forming fins, and a bottom plate having a boss with its inner end 55 engaging and fitting the curved end of the exterior anode, said boss projecting into the opening of plates at the end of the anode and cooperating with said plates to conduct heat from the anode. co
  4. 4
    A cooling device for a curved end cylindrical exterior anode, comprising a core body fitting said anode, said core body having fins extending therefrom and a bottom plug having a boss with its inner end engaging and fitting the curved end 65 of the exterior anode, said boss projecting into the opening of plates at the end of the anode and cooperating with said plates to conduct heat from the anode.
  5. 5
    A cooling device for a curved end cylindrical 70 exterior anode, comprising a core body having an opening fitting said anode, said core body having fins extending therefrom and a bottom plug having a boss with its inner end engaging and fitting the curved end of the exterior anode, said 75 boss projecting into the opening at the end of their area. A plug 2 i may be inserted around the curved bottom end of the anode as illustrated in Fig. 1. In Figs. 5 and 6 we have illustrated a very economical and easily assembled type of air cooler. The cast core, such as would be utilized in Fig. 1, sometimes contains a number of blow holes and occasionally there is imperfect contact between the core and the fins attached thereto that causes undesirable high temperature drop. In Fig. 5 we have illustrated an air cooler which is composed of comparatively thin punchings 25 stacked up around the anode i I. These punchings have a top cover plate 23. There is also a bottom plate 21 with a projection 28 extending upwardly to fit closely around the bottom of the exterior anode i i. These punchings have a central circular plate 2S with integral radial fins or pins 30 extending therefrom. The stacked plates 29 form a core body. The diameter of the central plates 29 is approximately one-half the diameter of the punching, including the radial fins 39. These punchings are pressed together, preferably by the bolts 31 illustrated on the drawings. They are then soldered together. The plug 28 prevents the solder from flowing out the bottom. It also helps transfer heat from the curved bottom of the exterior anode outwardly to the fins. Certain particular types of tubes have an unusually long exterior anode. In such a case it might not be desirable to design an air cooler requiring air to travel the length of the tube inasmuch as at a given velocity the air may be too hot at the outlet, thus reducing the efficiency of cooling at the upper end of the tube. Moreover, friction resistance in long narrow ducts of the cooler may reduce the cooling efficiency. Our invention is adapted for such a special tube to provide a cooler with an air blast perpendicular to the axis of the tube. In Figs. 7 and 8 we have disclosed an efficient design for such a special tube. This design is made out of punchings which under the cover plate 32 have a central area 33 and then an extension 34 to the left on one punching, and to the right 35 on the next punching.. The width of the central area 33 of the stacked punchings forming the core body exposed to the air flow may be approximately one-half the distance through the air cooler, including the alternate projections 34 and 35. The punchings may be bound together such as by bolts 36 illustrated in connection with Fig. 5. Each of the plates acts as an individual and independent heat radiator and provides a direct heat flow therethrough from the central opening to the outside without the interposition of any joint. One disadvantage of the air cooler is that it is very heavy and bulky for transportation and handling. In order to eliminate the inconvenience of shipping the air cooler already assembled to the tube to the field, we propose to ship them separately and then assemble them by any one of the methods disclosed in Figs. 9, 10, and 11. In Fig. 9, for example, the exterior anode 11 is disclosed inserted in the opening in the core 16 with its extending fins 18. The core has a bottom plug 37 closely fitting about the bottom portion of the anode and has extending projections 38 making a tight thermal contact with the core. This plug has a depression 39 extend2,289,984 the core body at the end of the anode and cooperating to obtain heat transfer between said anode, core, fins and plug, said plug having a recess in its under side for application of heat to the plug and core body in close proximity to the anode.
  6. 6
    A radiating arrangement for a discharge device having an anode structure which comprises a stack of flat plates, said plates alternately projecting laterally from said stack, a central core formed by the non-projecting ends of said plates, said central core having an opening therein for said anode structure.
  7. 7
    A radiating arrangement for a discharge device having an anode structure which comprises a stack of flat plates, said plates alternately projecting laterally from said stack, a central core formed by the non-projecting ends of said plates, said central core having an opening therein for said anode structure, said plates providing direct heat flow from said opening to the outside without the interposition of any joint.'
  8. 8
    A radiating arrangement comprising a core body having a central opening for the reception 5 of an exterior metal electrode therein, fins projecting from said core body and a heater embedded in said core body whereby said electrode may be soldered to or unsoldered from said core whenever desired.
  9. 9
    10 9. A cooling device for a curved end cylindrical exterior anode, comprising a core body having an opening fitting said anode, said core body having fins extending therefrom and a bottom plug having a boss with its inner end engaging and 15 fitting the curved end of the exterior anode, said boss projecting into the opening at the end of the core body at the end of the anode and cooperating to obtain heat transfer between said anode, core, fins and plug. 20 ILIA E. MOUROMTSEFF. GEORGE M. DINNICK.
Independent claims9