Abstract: In an exhaust gas control device-equipped internal combustion engine, particulate matter produced in conjunction with combustion of gasoline in a combustion chamber is oxidized by an exhaust gas control device provided in an exhaust passage. The engine includes air-fuel ratio control changer that changes between a feedback control toward a stoichiometric air-fuel ratio whereby an amount of oxygen in exhaust gas is reduced and a feedback control toward a lean-burn combustion side whereby the amount of oxygen in exhaust gas is increased, if the oxidation speed of particulate matter in the exhaust gas control device provided in the exhaust passage is slow, or if the amount of deposit of particulate matter is great.

Abstract: An exhaust arrangement for a multi-cylinder internal combustion engine of a vehicle which has a row of cylinders. The arrangement includes an exhaust manifold including a branch portion having a plurality of branch pipes corresponding to the cylinders, a catalyst disposed downstream of the exhaust manifold, and an exhaust pipe connecting the exhaust manifold to the catalyst. The exhaust pipe defines an exhaust path having a bend. The bend includes a plane dividing an interior of the bend into equal halves. A partition divides the exhaust path into first and second exhaust passages coextending in a longitudinal direction of the exhaust pipe. The partition extends in the bend in alignment with the plane. An oxygen sensor is disposed at the bend of the exhaust pipe in alignment with the partition and projects into both of the first and second exhaust passages through a periphery of the partition.

Abstract: A drive device which does not cause breakage of a pump chamber or a seal due to thermal expansion of operation fluid is provided.

Abstract: An exhaust-gas turbocharger for an internal combustion engine includes an exhaust-gas turbine in the exhaust section and a compressor in the intake tract. The compressor includes a compressor impeller in an inflow passage in the compressor housing. Furthermore, there is an auxiliary-air feed device, which is assigned to the compressor region and has an auxiliary-air passage, in the compressor housing for supplying auxiliary air, which can be introduced via an injection opening in the wall of the inflow passage of the compressor into the flow-facing region of the compressor impeller.

Abstract: The present patent introduces an alternative construction to my concept of an Ocean Thermal Gradient Hydraulic Power Plant (OTGHPP), U.S. Pat. No. 6,202,417 of Mar. 20, 2001, in the form of an intake pump furnishing sea water to the intake nozzle of the Steam Lift Pump (SLP) under sufficient volume and pressure to achieve an optimum flow and working head on the OTGHPP's hydraulic turbine without deep immersion of the nozzle, as normally would be useful for plants sited in deep water.

Abstract: A combustion system for a gas turbine engine includes a Catalyst (CAT) combustion sub-system for generating combustion products under a lean premixed fuel/air condition in the presence of a Catalyst and a Dry-Low-Emissions (DLE) combustion sub-system, for generating combustion products under a lean premixed fuel/air condition. Gaseous and liquid fuels are used for the DLE combustion sub-system while only gaseous fuel is used for the CAT combustion system. The engine operates at start-up and under low load conditions with the DLE combustion system and switches over the combustion process to the CAT combustion sub-system under high load conditions. Thus the combustion system according to the invention combines the advantages of DLE and CAT combustion processes so that the gas turbine engine operates over an entire operating range thereof at high engine efficiency while minimizing emissions of nitrogen oxides and carbon monoxide from the engine.

Abstract: A power generation plant with a compressed air energy storage system comprises a means to reduce the pressure of air extracted from a compressed air storage cavern for the use in a combustion turbine. The means to reduce the air pressure comprises at least one expansion turbine and means to control the size of pressure reduction. Furthermore, the expansion turbine is arranged on a rotor shaft that drives a generator. The means for pressure redact, according to the invention, avoid power losses and provide an increased overall efficiency of the power generation plant.

Abstract: A system for injecting an air/fuel mixture into a combustion chamber of a turbomachine, the system having an injector comprising: an axial internal volume opening out at one end via an axial outlet for the air/fuel mixture; a first fuel feed stage having a plurality of first fuel feed orifices which open out into the internal volume, which are distributed around an axis of the injector, and which are connected by fuel feed channels to an inlet for admitting fuel into the injector; and at least one air feed channel which opens out into the internal volume and which is connected to an inlet for admitting air into the injector. The injector further comprises at least one second fuel feed stage with a plurality of second fuel feed orifices which open out into the internal volume, which are distributed around the axis of the injector, and which are connected to said inlet for admitting fuel into the injector via fuel feed channels which coincide at least in part with the fuel feed channels of said first stage.

Abstract: The present invention is a combined cycle power plant design increasing output and efficiency of heavily-fired combined cycle plants operating below the maximum output point by allowing the steam temperature to increase as the amount of duct firing is reduced. The cycle design also reduces the installed cost of the overall plant. Making steam temperature a variable in operating the power plant meets the problem of actual operation distancing itself from Carnot efficiency in reduced load or part load conditions.

Abstract: An axially loaded floating brush seal useful in a stationary gas turbine engine having a first rotary compressor component having a rotor having a radial surface, a second non-rotary component having an end ending near the radial surface with the floating brush seal being positioned between the first and the second components to substantially reduce the flow of air between the first and second components. A method for controlling the flow of cooling air into a chamber in the second component using the rotary brush seal is also disclosed.

Abstract: A combustion case for a gas turbine engine. A typical combustion case is generally cylindrical or conical. Apertures penetrate the case, from the outer surface, through the case, to the inner surface. The apertures act as concentration points for stress. To dissipate the stress, bosses buttress the apertures, with each aperture having two bosses: one on the outer surface of the case, and another on the inner surface of the case. The invention eliminates the latter bosses. The invention dissipates stress by providing an array of T-slots on the inner surface.

Abstract: A system and method is provided that employs schedules and gains in an electronic control unit for a gas turbine engine which are independent of fuel type used to run the engine. According to one embodiment, the method comprises the steps of determining engine requirements and calculating a desired energy flow for at least one engine, maintaining desired engine conditions according to the desired energy flow; converting the desired energy flow into expected fuel flow according to the specific fuel being utilized, calculating a fuel flow command, and communicating the fuel flow command to at least one fuel valve.

Abstract: Disclosed is an engine surge avoidance system and method which adapts the acceleration schedules (i.e., P2.5 bleed valve and NDOT) to prevent engine surge events from occurring while minimizing reductions in engine response time. The surge avoidance system and method disclosed herein achieves this goal by adapting both the NDOT and the P2.5 bleed schedules in an optimum fashion.

Abstract: The present invention contemplates a gas turbine engine compressor including a plurality of effervescent atomizers to inject a mixture of water and methanol into the compressor inlet. A plurality of droplets, preferably less than ten microns in size, travels through the inlet duct to the compressor. In one embodiment the plurality of effervescent atomizers are located around the circumference of the inlet duct and upstream of the compressor inlet and the injection occurs into a gas having a substantially ambient pressure.

Abstract: A gas turbine jet engine having a channel in a turbine casing through which a quantity of compressed air from a pressurized air source is introduced to start the gas turbine jet engine. The compressed air is expanded and accelerated by a series of diffusers and then impinges upon at least one impulse-type turbine bucket member located on the tip of a turbine blade to drive the turbine, which drives a compressor to start engine. Alternatively, the channel in the casing is located close to an axial compressor in a gas turbine engine's forward section and drives at least one turbine bucket member on a shrouded integrated compressor/turbine blade to drive the compressor to start the gas jet turbine engine.

Abstract: In a turbine engine with an annular recuperator surrounding the turbine, exhaust gas is directed from the turbine to the recuperator by a generally curved exhaust dome. A vortex disrupter structure extends from the exhaust dome to a point distal of the turbine to evenly distribute the exhaust gas entering the recuperator and sustain diffusion of the exhaust gas to increase the expansion ratio across the turbine.

Abstract: A cascade thermoelectric cooler designed to cool to cryogenic temperatures of 30 to 120 K integrates high performance\high-ZT BixSb2−xTe3 and Bi2Te3−xSe3-based super-lattice-structure thin-film thermoelectric devices with a bulk-material based thermoelectric cooler including plural cascaded cold stages with each successive cascaded cold stage able to cool to a progressively lower temperature. Each cold stage in the bulk-material thermoelectric cooler includes a heat source plate, a heat sink plate, a p-type thermoelectric, and a n-type thermoelectric. Moreover, the thin-film thermoelectric cooler can have multiple stages in which each stage contains a heat source plate, a heat sink plate, a p-type super-latticed thermoelectric element, and a n type super-latticed thermoelectric element.

Abstract: A super cooler device including a thermo electric cooler on a digital micro mirror device.

Abstract: An air conditioner with an ejector includes first and second interior heat exchangers for performing heat-exchange between refrigerant and air to be blown into a compartment. The second interior heat exchanger is disposed at a downstream air side of the first interior heat exchanger, and a decompression valve for decompressing refrigerant in a dehumidifying-heating operation is disposed in a refrigerant passage connecting the first and second interior heat exchangers. In a cooling operation, the first and second interior heat exchanger are used as evaporators. On the other hand, in the dehumidifying-heating operation, refrigerant decompressed in the decompression valve is evaporated in the first interior heat exchanger while bypassing a nozzle of the ejector, and refrigerant is radiated in the second interior heat exchanger.

Abstract: A method of control for preventing warm air from being exhausted during a fuel cut when driving an air-conditioning system by a vehicle engine comprising, when it is judged that the fuel has been cut when the engine is decelerating and the engine speed has fallen to a first judgement value, causing the amount of discharge and torque of the refrigerant compressor to fall once to for example zero or a value close to zero, then causing them to gradually rise in a pattern of torque control of the refrigerant compressor and, when it is judged that the engine speed has fallen to a second judgement value, causing the fuel cut of the engine to end so as to secure the minimum necessary cooling capacity and extend the fuel cut time simultaneously.

Abstract: Method and apparatus for providing an automatic defroster function for a surface in a vehicle including a sensor for detecting the presence of mist or ice on such a surface, means for generating control signals, on the basis of the sensor data, for a number of functions in the car for an optimum defroster function on said surface, means for receiving these control signals, and means for receiving control signals from a temperature regulator in the car for a number of functions in the car. A number of the control signals from the temperature regulator are intended to control the same functions as the control signals for the optimum defroster function, and the same means are used for receiving control signals for optimum defroster function and for receiving some of the control signals from the temperature regulator. The means for receiving control signals are intended, in the event of conflict, to select those control signals that are designed to give the best defroster function.

Abstract: A refrigerator which uses a microcomputer having a common input port for a plurality of temperature sensing devices, and a method of controlling the same. In the refrigerator, inexpensive bimetals are used as one or more of the temperature sensing devices to sense a defrost temperature of the refrigerator. Accordingly, the manufacturing cost of the refrigerator is reduced. Furthermore, because the refrigerator is provided with the common input port for the temperature sensing devices, a circuit construction thereof is simplified.

Abstract: Adaptive defrost control and method for a household refrigerator wherein a defrost heater is prevented from being powered as long as a compressor is running. The adaptive defrost control also provides a vacation mode in which the defrost interval is set to an artificially long interval if a door of refrigerator has not been opened for some predetermined period of time.

Abstract: The present invention provides low temperature zone forming equipment having a storage function capable of controlling temperature and humidity and a method and equipment for maintaining the quality of hauled fishes in an auction market of marine products such as fishes shellfishes, which constitute a low temperature distribution system closely linked with a purchase and sale system in consideration of the characteristics of the market.

Abstract: A cooling appliance is provided with a refrigeration compartment, a cold storage compartment and a freezer compartment, which are separated from one another by partition walls and by at least one door or flap. A cooling air passage is associated with the refrigeration compartment and in its run-in region a cooling fan is arranged which sucks cooling air from the refrigeration compartment and its run-out opens into the cold storage compartment. Sections of a single evaporate are associated with the freezer compartment and the cooling air passage. Openings and/or gaps are provided in and/or between the partition wall and/or door which separate the refrigeration compartment from the cold storage compartment. A control or regulating device controls the running time and/or the speed of the compressor and/or the switched-on time and/or the speed of the cooling fan.

Abstract: A refrigerator has a refrigerant circuit that is comprised of; a power-variable two-stage compressor, a variable throttler, which are computer controlled; and a first evaporator for fresh food compartments and a second evaporator for freezer compartments. Temperatures in the first and second evaporators are controlled independently from each other, by controlling throttling extent of the variable throttler. Temperature in the first evaporator is kept in a range not causing frost formation on surface of the first evaporator, for example in a range from −2° C. to 2° C., by controlling the throttling extent as well as the power of the compressor. In a preferred embodiment, the variable throttler is a pulse motor valve at downstream of a condenser and at upstream of the first evaporator.

Abstract: A method and system for controlling the cooling of small milk quantities in a cooling tank (2) having a bottom wall portion (12) with a milk cooling surface (12′) within the tank being part of a cooling circuit, an agitator means (19) within the tank for stirring the milk therein. The gist of the invention is: a) providing a means (10) for measuring the milk quantity in the tank, and a temperature transducer (11) for monitoring the milk temperature in the tank, b) providing, in the cooling circuit, an evaporator (4) connected to the bottom wall portion of the tank, a compressor (5), and a condenser (7), c) controlling the temperature of the refrigerant in the evaporator by regulating the vaporizing pressure, so that the temperature of the milk cooling surface (12′) is always higher than 0° C., whereas the refrigerant temperature in the evaporator (4) is below O° C.

Abstract: The present invention relates to a control device for a household electrical appliance. The control device has an interface configured to enable a user to set or modify parameters of one or more operational members of the appliance by a command and control circuit in communication with the appliance. The interface has a one or more selectors arranged to enable setting or modifying of the parameters of the appliance. The selectors are connected to a resonant electrical circuit arranged to generate or to respond to a radio-frequency signal in a modifiable manner representative of the setting or modification effected by the user. The signal also being sensed by a sensor associated with the command and control circuit, which enables the command and control circuit to set or modify in an appropriate manner the parameters of the operational members for controlled operation of the household electrical appliance.

Abstract: In the air-conditioning system, a primary side to generate heat includes a heat storage and a heat source and produces cool or warm water using an inexpensive commercial power source such as a nighttime power source. A system collaboration unit is disposed between a motor to drive a water pump and a power source. The unit is connected to the motor via a cable. An output from the inverter is connected to the motor via a cable.

Abstract: A manifold for charging a system which when in use cycles a refrigerant between liquid and gaseous states is disclosed. The manifold includes a housing defining a flow passage extending from an inlet to an outlet. Structure is within the housing to define a capillary in parallel communication with a section of the passage. A refrigerant state control valve is connected to the housing. The valve, when in the open position, enables concurrent refrigerant flow through both the section of the passage and the capillary to charge such a system with refrigerant in a liquid state. The valve when in the closed position sufficiently blocks the section of the passage to cause all refrigerant flow to be through the capillary thereby to enable charging such a system with refrigerant in a gaseous state.

Abstract: The present invention is directed toward compositions of phase change materials derived from fats and oils, and the utilization of such phase change materials in heating, venting, and air conditioning (HVAC) systems. More particularly, the utilization of such phase change materials in a heat pump or air conditioner to significantly increase the efficiency of heat exchange with the surrounding environment. Various embodiments are disclosed including energy storage devices having phase change materials encapsulated between sheets of material to reduce stresses associated with freezing and thawing of the phase change material. A preferred heat pump apparatus utilizes the phase change material in the evaporator, and a smart fan mode of operation to circulate outside air through the evaporator based on approach temperature rather than compressor operation.

Abstract: A plant for continuous flow freezing of edible ice products is built up in a freezing section (100) with a tray conveyor (8), the drive chain of which leads trays carrying the items to be frozen from an entrance to the freezing section (100) and around a conveyor support frame (10), and where by means of at least one fan or blower (26), a flow of freezing air from at least one freezing aggregate (24) is brought to pass across the items to be frozen during passage along the conveyor support frame (10). With the view to achieving a maximum speed of the flow of freezing air in relation tot he average speed of the air flow across the items, and compact construction while still providing easy access for maintenance and cleaning, there is disclosed an embodiment comprising at least two conveyor support frames (10) placed at the side of each other, and where the frames (10) in all comprise at least one freezing aggregate (24) and at least one fan or blower (26) for driving the flow of freezing air.

Abstract: An air separation unit including an air intake, a high pressure cryogenic distillation column receiving air from the air intake and producing an oxygen rich liquid reflux, and a low-pressure cryogenic distillation column. An adaptive controller controls the flow rate of the oxygen-rich liquid from the first distillation column into the second distillation column, wherein during plant upsets, the adaptive controller maintains the level of oxygen-rich liquid in the first distillation column at a substantially constant level by adjusting a flow rate of the oxygen rich liquid into the second distillation column, and wherein the argon content of the argon-rich output stream from the second distillation column remains substantially constant.

Abstract: For improving the refractive index homogeneity of quartz glass bodies, at least one burner is disposed movably in a melting device with respect to the quartz glass object which is to be produced. The burner has three essentially concentrically disposed groups of nozzles for metering the raw material, supplying the hydrogen and supplying the oxygen. Corresponding to the changes in the distribution of OH and H2 between the center and the edge of the quartz glass object, the volumes of hydrogen and/or oxygen of the burner gases flowing change as a function of the burner position with respect to the quartz glass object in order to bury the mixing ratio in the burner gas.

Abstract: A method for producing ultra-high purity, optical quality, glass articles is disclosed which involves:

Abstract: A process for stably and efficiently producing quality glass articles such as preforms at high yields, and a process for producing an optical device from the preform obtained by the above process.

Abstract: A method for bonding an electrically conductive silicon carbide structure to an electrically conductive siliconized silicon carbide structure by temporarily securing the siliconized silicon carbide structure to the silicon carbide structure; placing the silicon carbide structure with secured siliconized silicon carbide structure into an induction heating furnace having an induction coil which heats electrically conductive material in the furnace when sufficient electrical power at a frequency of from about 300 to about 1000 KC is passed through the coil; and causing sufficient electrical power at a frequency of from about 300 to about 1000 KC to be passed through the coil to raise the temperature of the siliconized silicon carbide structure and silicon carbide structure to a temperature above about 1500° C.

Abstract: A lens is fitted into a metal ring that covers the outer peripheral surface of the lens and can be soldered to a fixture member. The side cylindrical part of the metal ring is expanded toward the outer peripheral direction thereof by the pressure of the optical material put inside it, and, thus expanded, it defines the final dimension of the metal ring. One of the two openings formed on both sides of the side cylindrical part of the metal ring is so designed as to have a curving cylindrical part that extends from the side cylindrical part, and this curving cylindrical part is folded toward the optical functional face of the optical device to construct a metal ring-fitted optical device.

Abstract: An object of the present invention is to overcome the problems of the prior art technique, and to provide a heat treatment method as well as a heat treatment apparatus capable of heat treating, with higher efficiency, a synthetic quartz glass for optical use having higher homogeneity and higher purity. Another object of the present invention is to provide and a synthetic quartz glass for optical use.

Abstract: A nonwoven fabric is constructed of a highly flat glass fiber which is a glass fiber whose section is flat and has a flatness ratio of 2.0 to 10 and which has such a section that the packing fraction is at least 85%, preferably at least 90%. In this nonwoven fabric, the glass fiber section has a shape near rectangle, and hence, the glass fibers can be arranged very densely to form a thin nonwoven fabric having a high bulk density, and when it is used as a laminate material, the glass fiber content can be increased and the surface smoothness can simultaneously be enhanced and can be used appropriately as a reinforcing material for a printed wiring board. Moreover, the above flat glass fiber can be produced by use of, for example, a nozzle having such a shape that one side of the major axis walls of a nozzle chip having a flat nozzle hole is partly notched.

Abstract: Disclosed is a spinning device for low polarization mode dispersion. The spinning device for minimizing PMD(Polarization Mode Dispersion) of the drawn optical fiber in the optical fiber drawing process includes: a base plate arranged at a lower end of a drawing tower; a tilting spinning wheel mounted on the base plate for rotating along a first rotational shaft, for transferring a drawn optical fiber to a capstan, for periodically rotating along a second rotational shaft within a predetermined angle range at a perpendicular relation to the first rotational shaft, for applying a periodic twisting on the optical fiber using the tension of the drawn optical fiber with its outer periphery touched with the drawn optical fiber; and, a speed reducing unit connected to the second rotational shaft of the tilting spinning wheel for reducing the rotational speed of the wheel.

Abstract: The invention relates to tubular knitwear items provided with suitable openings or holes (H) automatically obtained for shoulder straps (SS, SD), neck portions (GC), belts, strings, stripes, knots (K), loops and the like, i.e. for various applications and purposes, such as anatomic support, and for aesthetic and functional connections and weavings also with other manufactured items. The invention coordinates the suitable needle (A) selection according to the jacquard design and to the work cycle of the knitting machine and enable, for definite fabric areas and needles (A), the temporary stop of the knitting process and the subsequent stitch discharge, followed by the production of new fabric stitches, also with needle discard and floating yarns (FF) so as to obtain transparent effects and the production of fringes.

Abstract: A knitted sock has an inner layer 2 comprising a toe end 4 and an outer layer 3 comprising a toe end 7. The inner and outer toe ends are aligned and joined wale stitch to wale stitch to form a composite toe end, which is closed to provide a flat toe seam 10. The layered sock is manufactured complete in a single process being knit continuously from the inner toe end to the outer toe end. It comprises reciprocated heel and toe portions. The foot portion of the inner layer is knit from a yarn with properties such as a low coefficient of friction and/or antifungal/antibacterial properties. The low friction fiber is a fluoropolymer such as polytetrafluroethylene. The outer layer may comprise a cushion structure.

Abstract: Disclosed is a direct-drive washing machine enabling to revolve a pulsator only or both of the pulsator and inner tub in accordance with a load condition such as a laundry quantity, a washing water quantity, etc, a fabric condition, and the like so as to realize an optimal washing condition as well as improve a washing efficiency. The present invention includes a first rotating shaft connected directly between the drive motor and pulsator so as to transfer a drive power of the drive motor to the pulsator directly, a second rotating shaft installed between the drive motor and inner tub separately so as to transfer the drive power of the drive motor to the inner tub selectively, a clutch installed between the second rotating shaft and drive motor so as to connect or cut off the drive power transferred from the drive motor to the inner tub, and a clutch operating device actuating the clutch.

Abstract: An inner tub for a washing machine, which is able to increase a dried degree of laundries and to increase a reliability of the washing machine by improving a structure of an inner tub hub and reinforcing the inner tub to make a spin-drying of high speed possible, comprises an inner tub body; an inner tub base formed on a lower part of the inner tub body; and an inner tub hub coupled on a lower surface of the inner tub base, including a rotating shaft coupling portion to which a rotating shaft for transmitting a rotating force of a driving motor is coupled, a radial supporting portion extended in an outer boundary direction of the rotating shaft coupling portion with a predetermined gap therebetween, and a ring type supporting portion having a predetermined width in an outer circumferential direction of the radial supporting portion formed integrally.

Abstract: A compact disk casing includes a base and a cover which is pivotally connected to the base. A locking plate is inserted from a side of the casing and is retained by a bridge member on the base so as to limit the cover from being opened. A locking member is located on a top surface of the base and the locking plate has two flexible matching members which are engaged with two engaging members of the locking member. A key can be inserted from an underside of the base to shift the two matching members to allow the locking plate to be pulled from the casing.

Abstract: An emergency release system for door lock is disclosed, which includes a lock unit having handles and a lock, one of the handles being associated with the lock and the other not associated therewith, a latch unit having a latching bolt, wherein the lock, when set, prevents retraction of the latching bolt by rotation of the handle associated with the lock, but does not prevent the retraction by rotation of the other handle, a linking unit having latch retraction means and holding means, and a sensor door unit having sensor door means. The sensor door means is openable by means of a pressure difference across the door, and is connected to the holding means so that the holding means actuates the latch retraction means when the sensor door means is opened, for retracting the bolt independently from the lock unit.

Abstract: A lock mechanism for use with lever handles includes a lock core and a latch mechanism that is rigidly connected to the lock core to prevent the lock core from rotating in the door. Through-bolts are not needed, allowing a small diameter rose to be used. Stops and a spring return mechanism are entirely located within the lock core, allowing the rose to be thin. The lock core defines the rest position for the lever handles at an angle slightly above horizontal. To avoid the necessity for producing different locks in left and right-hand configurations, the lock core is made substantially symmetrical about a vertical plane, instead of a horizontal plane, and the inner and outer sides of the lock mechanism can be interchanged. A heavy-duty locking piece, including a pair of locking lugs that directly engage the lock core near its inner perimeter, allow the lock to withstand abusive forces applied through the lever handle.

Abstract: The humic-mineral concentrate is prepared from an aqueous suspension comprising humic acid salts and finely divided humic-mineral particles and complexes the content of which ranges from 1.5 to 20 wt. % of a total weight of the salts. Electrolysis of the salts and electrophoresis of the particles and complexes are carried out in two baths in the course of which processes humic acids and humic-mineral substances making up the concentrate are isolated on the anodes. The direction of electrolyte flow in each bath is opposite to the sense of anode rotation. Interposed between the baths is a collector communicating therewith via overflow holes for feeding the aqueous suspension. Each of the bath is provided a discharge container positioned under the end product extractor.

Abstract: The present invention relates to a process for the production of potassium octoborate hydrate which comprises the dissolution of boric acid and caustic potash in an aqueous solution brought to a temperature of 95° C., the drying of the product obtained and its grinding into an amorphous powder. Potassium octoborate and its polyhydrate forms obtained are specifically suitable for use in the agronomic field.