Abstract: A coil component includes a drum core including a winding core portion and first and second flange portions, and first and second wires. A portion of the first wire that first comes into contact with an outer peripheral surface of the winding core portion when the first wire is traced from a first wire end to a second wire end is defined as a 1.0 turn portion of the first wire. A portion of the second wire where an angular position thereof about a central axis first coincides with an angular position of the 1.0 turn portion of the first wire, on a side of a second negative direction with respect to the central axis, when the second wire is traced from a first wire end to a second wire end is defined as a 1.0 turn portion of the second wire.

Abstract: A coil component includes a drum core, a first wire, and a second wire. The drum core includes a winding core, a first flange, and a second flange. The first wire includes a first winding portion. The second wire includes a second winding portion. When the second wire is traced from the end at the first flange toward the second flange, a specific position is a position at which the second wire comes into first contact with an outward-facing part of the first wire, and a specific turn is a turn of the second wire that is wound around from the specific position so as to proceed toward the second flange. The second winding portion has, within the specific turn, two intersections at which the second wire intersects the first wire.

Abstract: The present invention provides a multipurpose pump apparatus of high achievement, which can continuously pump and convey liquid even containing a large amount of foams and can make high level defoaming function and degassing function, and pumped liquid sterilizing function, etc. The pump apparatus comprises a gas-liquid separating impeller disposed in a pumped liquid path of a primary pump for pumping liquid, a cavity receiver which receives the tail bottom of a tornado-shaped cavity produced by the rotation of the gas-liquid separating impeller to prevent the tornado-shaped cavity from extending, and vacuum means connected to a part in a vicinity of the center of the tornado-shaped cavity through a degassing path.

Abstract: The present invention relates to a noncontaminative centrifugal pump for pumping a high-purity liquid, such as a high-purity chemical or ultrapure water used in a VLSI circuit manufacturing system, without producing any trace of dust and without allowing foreign matters entering its casing. A noncontact shaft seal assembly provides an accurate gap between the rotating and fixed rings thereof to allow a required leakage from the noncontaminative centrifugal pump, does not produce dust by abrasion, inhibits foreign matters from entering the noncontaminative centrifugal pump and maintains the high-purity liquid in a high-purity condition. While the noncontaminative centrifugal pump is in operation, the impeller produces a hydraulic axial thrust to bias the main shaft in one direction by a distance equal to a play thereof so that the gap is maintained in a set size suitable for preventing generation of dust by abrasion and inhibiting foreign matters from entering the casing.

Abstract: This invention relates to a process for the production of absolute alcohol from aqueous alcohol, whereby saving of energy to a greater extent is rendered possible in a more simple process, as compared with the prior art azeotropic distillation method using benzene or cyclohexane. That is, aqueous alcohol is subjected to extractive distillation in a first distillation column under such a condition that a liquid and gas of a solvent simultaneously coexist using low pressure propane, propylene and butane as the solvent, absolute alcohol substantially free from water is recovered from the bottom of the distillation column and subjected to stripping of hydrocarbons in a second distillation column, during which the gaseous phases of the first and second distillation columns are mixed and compressed, utilized through recompression as a heat source of a reboiler of the first distillation column, subjected to separation of water content and recycled to the upper parts of the first and second distillation columns.

Abstract: A method and an apparatus to condense and rectify alcohol, and more particularly to a method and an apparatus suitable for the energy-saving condensation and rectification of high-purity alcohol from the synthesized alcohol, the used alcohol aqueous solution in food industry and the fermented alcohol.The method makes it possible to extract and recover alcohol of 99 wt % or higher with small quantity of propane solvent, using the propane in supercritical or pseudocritical conditions in the process of condensation and recovery of alcohol from aqueous solution of alcohol. Further, the method makes it possible to condense alcohol to the concentration of 95 wt % or higher by increasing the selectivity of alcohol through the cooling of the propane to liquid state.

Abstract: The present invention relates to a method and an apparatus to condense and rectify alcohol, and more particularly to a method and an apparatus suitable for the energy-saving condensation and rectification of high-purity alcohol from the synthesized alcohol, the used alcohol aqueous solution in food industry and the fermented alcohol.The invention provides a method, which makes it possible to extract and recover alcohol of 99 wt % or higher with small quantity of propane solvent, using the propane in supercritical or pseudocritical conditions in the process of condensation and recovery of alcohol from aqueous solution of alcohol. Further, the method makes it possible to condense alcohol to the concentration of 95 wt % or higher by increasing the selectivity of alcohol through the cooling of the propane to liquid state.