Abstract: A discharge cell for use in an ozone generator is provided which can suppress a time-related reduction in ozone concentration without adding a catalytic gas such as nitrogen gas to oxygen gas as a raw material gas. The discharge cell includes a pair of electrodes disposed in an opposed spaced relation with a discharge space therebetween, and a dielectric layer of a three-layer structure consisting of three ceramic dielectric layers successively stacked on at least one of the electrodes, wherein a first dielectric layer of the dielectric layer contacting the one electrode contains no titanium dioxide, wherein a second dielectric layer of the dielectric layer exposed to the discharge space contains titanium dioxide in a metal element ratio of not lower than 10 wt %.

Abstract: A method of reducing metallic impurities in an ozone gas piping means, which entails producing ozone gas in an ozone-generating means and piping the produced ozone gas to stainless steel piping means, wherein the ozone gas is produced from a raw material oxygen gas containing at least one additional gas selected from the group consisting of nitrogen, helium, carbon dioxide, carbon monoxide and ozone; the additional gas being used in an amount of 0.025% by volume or more in total, with the proviso that nitrogen is not used as or in said additional gas in an amount of more than 1.0% by volume.

Abstract: A heat sink fin assembly of the corrugated type for cooling an LSI package comprises a flat base plate and a heat dissipating member made of a thin metal sheet having convex and concave portions which are comprised of a repeated series of side wall portions, top portions, and bottom portions. The base plate and the heat dissipating member are integrated with each other by bonding.

Abstract: In a control device for a hydraulic actuator used in steering for controlling a hydraulic actuator comprising an angle sensor for detecting an angle of rotation given to a steering wheel, and an angle sensor for detecting an angle of an angular displacement of a vehicle wheel disposed to a steering mechanism for controlling the directional movement of the vehicle wheel with the hydraulic actuator, in which the given angle of an angular displacement of a vehicle wheel to a control device is outputted as an aimed positional signal, an actual angle of an angular displacement of a vehicle wheel of the vehicle wheel is outputted to the control device as a feedback signal, the desired positional signal is compared with the feedback signal to and the aimed positional signal is calculated and outputted to the actuator to control the hydraulic actuator,a memory table for previously storing steering control characteristics is used in a circuit for comparative calculation of an output in accordance with inputs.

Abstract: According to this invention, wheels are pivotally supported by a fork arm comprising a lever-type supporting component, an expandable lifting actuator having damper serially arranged to buffer and support thereof at other end end of arm of said supporting component. With this structure, a complete retraction of wheels can be achieved. Hence the supporting component can be used both as the supporting leg apparatus to vertically support the magnetically levitated vehicle and the guide leg apparatus to mechanically guide the vehicle along the guideway side wall. It is, therefore, characterized with the simple structure, light weight, small storage space, and easy to perform maintenance.

Abstract: A plate-type ozonizer capable of suppressing the deformation of plate discharging cells and securing a high ozone-generating efficiency where a high-concentration and high-pressure ozone gas is to be generated. An ozonizer body 10, in which a plurality of discharging; cells 11 are stacked one above the other, is housed in a pressure vessel 20. The pressure vessel 20 is supplied with a pressurized gas having a pressure equal to or almost equal to that of the raw material gases which are supplied to said discharging cells 11. Thus there is little or no differential pressure between the inside and the outside of the discharging cells 11 and therefore the discharging cells 11 are not subject to being deformed by unequal inner and outer pressure forces. A dried gas is used as the pressurized gas to prevent also a poor insulation due to a dewing.

Abstract: An activated species-generating apparatus using a gaseous phase discharge used as an ozonizer and the like is provided. Wire electrodes 21a, 21b, which are obtained by coating surfaces of electrically conductive wires with a dielectric, are entangled and the resulting crowded electrodes 20a, 20b are combined to form a three-dimensional discharge range.

Abstract: An automatic brake control apparatus includes a pressure intensifying solenoid valve in a hydraulic brake line connecting a source of hydraulic pressure with a brake, as well as a pressure reducing solenoid valve in a relief line branched from the brake line and connected to a low pressure reservoir. A pressure sensor is positioned to sense a hydraulic pressure in the brake line at a position downstream of a point where the relief line branches from the brake line. A controller receives a signal from the pressure sensor and determines desired brake pressure for producing a desired speed reduction rate. The controller outputs control signals to the pressure intensifying solenoid valve and the pressure reducing solenoid valve such that the detected brake pressure corresponds to the desired brake pressure. The apparatus may be incorporated into a brake pressure control valve having first and second stages.

Abstract: A system and method for generating high concentration ozone by introducing a high purity oxygen (99.995% or greater purity) into a silent discharge type ozone generator. Another high purity gas (99.99% or greater), is mixed with the oxygen before the gas is introduced into the ozone generator. By this process, high concentration ozone is generated such that the ozone concentration does not decrease with time. The highest ozone concentrations are maintained when the non-oxygen gas makes up between 1% and 10% of the volume content of the gas mixture introduced in the ozone generator.

Abstract: A high strength, high toughness stainless steel consisting, by weight, of C more than 0.16% but less than 0.25%, Si not more than 2.0%, Mn not more than 1.0%, Ni not more than 2.0%, Cr from 11 to 15%, Mo not less than 0.5% but less than 3.0%, Co from 12 to 21%, at least one kind selected from the group consisting of V from 0.1 to 0.5% and Nb less than 0.1% which at least one kind is added as occasion demands, and the balance Fe and incidental impurities. This steel is produced by a method comprising the steps of: preparing a stainless steel having the composition of any one of the claims 1 to 4; subjecting the stainless steel to a solution heat treatment at a temperature of 950 to 1150.degree. C.; quenching the steel; subjecting the steel to a sub zero treatment at a temperature of -50.degree. to -100.degree. C.; and subjecting the steel to a tempering at a temperature of 120.degree. to 450.degree. C.

Abstract: This sealing mechanism is provided with a cap in an overall sectional configuration of a cramp iron which is made from a synthetic resin, and a resilient sealing body in an overall sectional configuration of a cramp iron. An inner surface of the cap is formed with an inserting groove in which the resilient sealing body is fitted. When the resilient sealing body is fitted in the inserting groove in the cap, this sealing body is partially protruded from inner surface of the cap. The cap is also formed with longitudinal lubricating slots on the outer surface thereof. Moreover, both side surfaces of the cap are provided with a plurality of notches at predetermined regular intervals of place which extend from the outer surface of the cap to the inner surface thereof.

Abstract: This invention concerns a SiO.sub.2, SiN.sub.x protection film formed by a CVD or PVD gas phase glowing method capable of preventing melting of the matrix ingredients at the surface of a dielectric material in electric discharge of an ozone generator and it relates to a dielectric material used for an ozone generator capable of overcoming the problems for the abrasion of electrode and dielectric material or melting of ions or molecules of during electric discharge, as well as a method of forming a protection film therefor based on the finding that an SiO.sub.2 film or SiN.sub.x film can be formed easily on a surface of a predetermined electric material or, further, on a surface of electrode by processing a specific reaction gas, for example, comprising a crude gas such as SiH.sub.4, SiCl.sub.4, N.sub.2, NH.sub.

Abstract: A high strength, high toughness stainless steel consisting, by weight, of C more than 0.16% but less than 0.25%, Si not more than 2.0%, Mn not more than 1.0%, Ni not more than 2.0%, Cr from 11 to 15%, Mo not less than 0.5% but less than 3.0%, Co from 12 to 21%, at least one kind selected from the group consisting of V from 0.1 to 0.5% and Nb less than 0.1% which at least one kind is added as occasion demands, and the balance Fe and incidental impurities. This steel is produced by a method comprising the steps of: preparing a stainless steel having the composition of any one of the claims 1 to 4; subjecting the stainless steel to a solution heat treatment at a temperature of 950.degree. to 1150.degree. C.; quenching the steel; subjecting the steel to a sub zero treatment at a temperature of -50 to -100.degree. C.; and subjecting the steel to a tempering at a temperature of 120.degree. to 450.degree. C.

Abstract: A vacuum boiler evaporator includes a sealed vacuum boiler vessel, a sealed vacuum condenser vessel which contains a partition that divides it into a first chamber and a second chamber that functions as a noncondensible gas collector, a conduit which connects the vacuum boiler vessel with the first chamber of the vacuum condenser vessel, a plurality of heat transfer tubes which extend through the first chamber and into the second chamber, and a return pipe which extends from the second chamber to the vacuum boiler vessel.

Abstract: A double-walled tube type open rack evaporating device comprising a plurality of heat-exchanging pipes each of a double-walled tube structure having an inner tube and an outer tube in communication with the inner pipe at one end to constitute a heat-exchanging panel, a liquefied gas inlet header tank connected to one end of the inner tube, an exit header tank connected to one end of the outer tube, and a heating means for gradually evaporating a liquefied gas that flows from the liquefied gas inlet header tank into the inner tube and then delivering the gas as a gas at a normal temperature to the exit header tank. Deposition of ice can be avoided and the amount of sea water used as a heat medium can be reduced to save electric power consumption in a sea water pump. Flow rate and calorie hunting can be prevented to make LNG and NG flows stable.

Abstract: The rotor damping and control power value can be made arbitrary by controlling a cyclic pitch control mechanism with a signal proportional to the angular acceleration of the attitude angle .theta., a signal proportional to the angular velocity of the attitude angle .theta., and a correction signal based upon the difference between the attitude angle .theta. and assumed attitude angle .theta..sub.0, plus the cyclic pitch control input .PSI. applied to a cyclic pitch lever of a pilot. Thus, the rotor damping and control power are brought to their optimum values in response to the actual flight conditions of a helicopter for ideal operability, resulting in both high stability and operability, and, for example, fully automatically controlled hovering can be accomplished without producing any vibration in the attitude angle control response.

Abstract: Aluminum brazing alloys for assembling aluminum heat exchangers by brazing which consist essentially of 4.5 to 13.5% of Si, from 0.005% to less than 0.1% of Sr and the balance essentially Al and, further, optionally may contain at least one element selected from the group consisting of 0.3 to 3.0% of Mg, 2.3 t0 4.7% of Cu and 9.3 to 10.7% of Zn. The aluminum brazing alloys provide high strength brazed joints with highly refined microstructure and brazing operation can be performed in a good condition without causing any detrimental cavity. Such excellent properties make the brazing alloys especially suited for the fabrication of superhigh pressure heat exchangers.

Abstract: Aluminum brazing alloys for assembling aluminum heat exchangers by brazing which consist essentially of 4.5 to 13.5% of Si, 0.05 to 0.5% of Ca and the balance essentially Al and, additionally may contain Mg in the range of 0.3 to 3.0% or at least Cu component of 2.3 to 4.7% of Cu and 9.3 to 10.7% of Zn. The aluminum brazing alloys have an excellent brazability and provide high strength brazed joints with highly refined microstructure. Such superior properties make the brazing alloys especially suited for the fabrication of superhigh pressure heat exchangers.

Abstract: A boiling refrigerant-type cooling system for cooling an electric apparatus includes a refrigerant containing chamber in which the electric apparatus is disposed, a condensing chamber, and a vapor reservoir all in flow communication with each other. A cooling chamber open to the atmosphere adjoins the condensing chamber. A laminated partition separates the cooling chamber from the condensing chamber. The electric apparatus is electrically connected through a sealed opening in the refrigerant containing chamber.

Abstract: Fin stock materials adapted for use in superhigh pressure service heat exchanger fabricated by brazing are made of aluminum alloys consisting essentially of, in weight percentages, 0.6 to 1.5% of Mn, 0.1 to 1.0% of Cu, 0.1 to 0.75% of Mg, and 0.05 to less than 0.30% of Si, and the balance being aluminum and incidental impurities, the Fe in said impurities being controlled up to 0.8%. The aluminum alloy fin stock materials contain optionally at least one component selected from the group consisting of 0.05 to 0.25% of Zr, 0.01 to 0.25% of Ti, 0.05 to 0.25% of Cr and 0.01 to 0.25% of V. The fin stock materials have a combination of advantageous properties, particularly a high prevention effect of excessive silicon diffusion of brazing materials into the fins, good strength and formability, whereby give good utility particularly in plate fin heat exchangers for use in superhigh pressure applications.