Abstract: A heat pipe, includes; an outer tube including first and second ends, the first end closed air tight; a box connected to the second end, a cross-sectional area of the box perpendicular to the outer tube central axis is larger than a cross-sectional area of the outer tube perpendicular to its axis; an inner tube positioned in the outer tube, a central axis of the inner tube parallel to the outer tube central axis, including third and fourth ends, the third end closer to the first end than the fourth end and open in the outer tube; a partition tube including fifth and sixth ends widening from the fifth end toward the sixth end, the fifth end connected with the fourth end, part of the sixth end connected on an inner surface of the box; and fluid in a space formed by the outer tube and the box.

Abstract: A nuclear device including a plurality of heat pipes; a first fuel configured to surround respective of the plurality of heat pipes coaxially with respect to a central axis of each of the respective heat pipes, the first fuel containing a fissile material at a first enrichment level; a second fuel configured to directly abut the first fuel on the outside of the first fuel and farther than the first fuel from the respective heat pipes surrounded by the first fuel, the second fuel containing the fissile material at a second enrichment level less than the first enrichment level; and a core including the heat pipes arranged in parallel with each other.

Abstract: A heat pipe, includes; an outer tube including a first end and a second end, the first end closed to be air tight; a box connected to the second end of the outer tube, a cross-sectional area of the box perpendicular to the central axis of the outer tube is larger than a cross-sectional area of the outer tube perpendicular to its axis; an inner tube positioned in the outer tube, a central axis of the inner tube parallel to the central axis of the outer tube, including a third end and a fourth end, the third end of the inner tube closer to the first end of the outer tube than the forth end of the inner tube and open in the outer tube; a partition tube including a fifth end and a sixth end and wider from the fifth end toward the sixth end, the fifth end of the partition tube connected with the fourth end, a part of the sixth end connected on an inner surface of the box; and a fluid in a space formed by the outer tube and the box.

Abstract: A nuclear device, including: a heat pipe; a first fuel allocated around a side surface of the heat pipe parallel to a central axis of the heat pipe, the first fuel containing a fissile material at a first concentration; a second fuel allocated on an outer side of the first fuel and containing the fissile material at a second concentration less than the first concentration; and a core including a plurality of the heat pipes arranged in parallel to each of the central axis in the first fuel or in the first fuel and the second fuel.

Abstract: A discharge tube which assures stabilized discharging, is reduced in overall size and easy to manufacture is disclosed. The discharge tube comprises a cylindrical envelope made of an insulating substance, discharge gas enclosed in the envelope, and a pair of discharge electrodes disposed in an opposing relationship to each other at the opposite ends of the envelope. The the discharge electrodes are formed as parallel plate electrodes wherein faces thereof facing the inside of the envelope extend flat and in parallel to each other. A pair of conductive layers formed on the envelope in an opposing relationship to and electrically connected to the discharge electrodes, and one of the conductive layers is opposed at least part thereof with the other conductive layer with a portion of the envelope interposed therebetween.

Abstract: The discharge tube of this invention does not employ special shapes of electrodes that are difficult to manufacture, but can still provide a uniform electric field. The electrodes are disposed in the inwardly drawn portions of the cylindrical body in such a way that the opposing front end surfaces of the electrodes are recessed from the inner surfaces of the inwardly drawn portions in a direction that they move away from each other. The discharge electrodes therefore do not project into the inner space of the cylindrical body but are enclosed by the inwardly drawn portions so that they are protected against influences of external electric fields from outside the discharge tube, thus assuring stable and reliable discharges.

Abstract: A shield connector comprises a connector housing. A plurality of terminal pins having a bent section is supported by the connector housing. A cover is arranged to cover substantially the entirety of the terminal pins so as to shield a noise signal from the outside. The cover has a capacitor accommodating section. A capacitor is arranged within the capacitor accommodating section so as to support one ends of the respective terminal pins. An insulating section is so arranged as to cover an exterior of the capacitor. In a preferred embodiment, the cover has an upper cover element and a lower cover element. The insulating section is made of a resinous material.

Abstract: The object of the present invention is to provide a noise suppressing connector adopting a noise filtering structure which is capable of reducing the manufacturing processes, eliminating the conventional problems (i.e., the occurrence of incomplete connections by soldering the destruction of the aluminum plate, and so on), and thereby improving the quality of the noise filtering structure itself. In order to attain the above object, the noise suppressing connector according to the present invention incorporates a metal casing having one or more terminal insertion holes in the bottom wall thereof and formed with a capacitor section around each of these insertion holes; a pin terminal inserted through the terminal insertion hole and electrically connected to the capacitor section using soldering; and an insulating housing incorporated into to the metal casing, wherein the capacitor section is directly connected to the metal casing.

Abstract: The invention improves assembly efficiency by allowing an increased amount of assembly work to be automated. The noise suppressing connector incorporates a capacitor array having a plurality of individual electrodes arranged on the surface of a dielectric material and an earth electrode at the back; a plurality of lead terminals each having input/output portions and an intermediate portion, the intermediate portions being placed in contact with individual electrodes, said intermediate portions and the capacitor array being molded together within an insulating resin; and a metal housing connected with the earth electrode and adapted to accommodate and hold the molded resin block. An earth plate may be interposed between the earth electrode and the metal housing. Solder loading grooves may be provided to the metal housing at positions facing the earth electrode or earth plate to connect the earth electrode or earth plate with the metal housing by solder.

Abstract: The reduce thermal stress produced at soldering process of a connector with built-in through capacitors having a resin connector housing, connector pins passed through the resin connector housing, a metallic shield casing for covering the resin connector housing, and through capacitors formed between the connector pins and the metallic shield casing, respectively, the metallic shield casing is formed in particular with roughly U-shaped cross section deformable projections.

Abstract: The connector provided with at least one capacitor comprises: a resin connector housing; a metallic shield casing; and at least one connector terminal formed with, in particular a flexible portion to absorb thermal deformation of the resin connector housing relative to the metallic shield casing due to a difference in thermal expansion coefficient between the two, caused when the connector terminal is soldered to the capacitor or a printed circuit board.