Abstract: In the magnet rotor 1 in which the outer peripheral shape of the back yoke 3 composed of an electromagnetic steel plate or by laminating ordinary thin plates 3a having magnetism is formed in polygon and a permanent magnet 5 is adhered and attached to a fitting plane 4 of the back yoke 3, the permanent magnet 5 does not cause any rotation gap to the back yoke 3. Also, since the back yoke 3 is formed in polygon, only the permanent magnet 5 can be made thicker in a center part without changing a contact width and leak magnetic fluxes between N and S poles, the magnetic flux density is increased and the output is increased. Further, since a sleeve 10 is press-set into a step part 12 of an outer peripheral face of the permanent magnet 5, when the magnet rotor 1 is integrated in a stator 11, a clearance of the permanent magnet 5 and the stator 11 can be reduced and the output can be increased dynamically.

Abstract: A rocker arm for rocking on a rocker arm shaft is constructed to include two arms: a first rocker arm rocked positively by the rotating motion of a cam; and a second rocker arm for actuating the opening/closing actions of an intake/exhaust valve. At a running time of an engine at a high speed/under a high load, an electromagnet of an electromagnetic drive device is excited to move a movable pin forward thereby connect the first and second rocker arms to each other. At a running time of the engine at a low speed/under a low load, on the other hand, the electromagnet of the electromagnetic drive device for a selected cylinder is unexcited so that the movable pin is returned to an initial position by the force of a return spring to disconnect the first and second rocker arms.

Abstract: In a diesel particulate filter unit 1 having a mat type filter member 15 which is laminated with inorganic fibers, a passing area altering means 30 is provided to alter the area of the exhaust gas G passing through the filter member 15 and the diesel particulate filter unit is so provided that a rise time of the trap efficiency can be shortened by speeding up it at the time of trap and after a high trap efficiency is obtained, PM trap can be continued with a high trap efficiency for a long time in preventing the filter from an increase of the pressurized damage.

Abstract: A thermocouple used to measure a temperature of molten metal having a melting point of not more than 1200° C. is such constructed that a pair of alloy stock wires (5) and (6) capable of being used In a temperature region not exceeding 1200° C. is embedded in a protective pipe 3 made of ceramic. A measuring contact (2) formed by the extreme ends of a pair of alloy stock wires (5) and (6) connected to each other is secured to the protective pipe (3) by a filler (4) of an inorganic compound such as heat resistant ceramic powder or dehydrated condensation glass.

Abstract: [0081] A thermocouple lance for measuring temperatures in molten metals has a protective sheath of multi-layered structure that makes it possible to improve the life expectancy of repetitive measuring devices. The thermocouple lance has a protective sheath with one closed end and one opened end wherein porous heat-resisting ceramic filler is compacted. Embedded in the filler is a pair of W—Re alloy wires dissimilar in their composition from each other. The protective sheath has a layered structure made from cermet layers each having a molybdenum matrix and other layers of at least one boundary layer selected from the class consisting of C, MgO, CaO, Al2O3 and ZrO2, the cermet layers and boundary layers overlapping each other in alternate layers. At least the outermost shell layer of the protective sheath is made of a cermet layer composed of any one of Mo—ZrN, Mo—ZrB2, Mo—ZrO2, Mo—ZrC and composite thereof.

Abstract: A thermocouple lance for measuring temperatures in molten metals has a protective sheath of multi-layered structure that makes it possible to improve the life expectancy of repetitive measuring devices. The thermocouple lance comprises a protective sheath with one closed end and one opened end wherein porous heat-resisting ceramic filler is compacted. Embedded in the filler is a pair of W-Re alloy wires dissimilar in their composition from each other. The protective sheath has the layered structure made from the cermet layers each having a molybdenum matrix and other layers of at least one selected from the class consisting of C, MgO, CaO, Al2O3 and ZrO2, both of which layers overlap each other in alternate layers. At least the outermost shell layer of the protective sheath is made of a cermet layer composed of any one of Mo—ZrN, Mo—ZrB2, Mo—ZrO2, Mo—ZrC and composite thereof.

Abstract: An exhaust gas purifying apparatus provides a reflux pipe for connecting an intake pipe to an exhaust pipe and an EGR valve disposed in the reflux pipe for adjusting a flow rate of the exhaust gas flowing through the reflux pipe. A nitrogen oxide purifying catalyst section is formed by a brown miralite type composite oxide. A pair of electrodes are provided on the vicinity of the opposite ends of the purifying catalyst section. A conductivity measuring section measures conductivity of a nitrogen oxide catalyst of the nitrogen oxide purifying catalyst section through the electrodes. A control section controls an opening degree of the EGR valve on the basis of engine rpm, engine load and the conductivity measured in the conductivity measuring section.

Abstract: A thermocouple lance for measuring temperatures in molten metals has a protective sheath of multi-layered structure that makes it possible to improve the life expectancy of repetitive measuring services. The thermocouple lance comprises a protective sheath with one closed end and one open end wherein porous heat-resisting ceramic filler is compacted. Embedded in the filler is a pair of W—Re alloy wires dissimilar in their composition from each other. The protective sheath has the layered structure made from the cermet layers each having a molybdenum matrix and other layers of at least one selected from the class consisting of C, MgO, CaO, Al2O3 and ZrO2, both of which layers are overlapped each other in alternate layer. At least the outermost shell layer of the protective sheath is made of a cermet layer composed of any one of Mo—ZrN, Mo—ZrB2, Mo—ZrO2, Mo—ZrC and composite thereof.

Abstract: An exhaust gas purifying catalyst for use in an oxygen surplus atmosphere, includes a brown millerite composite oxide for directly decomposing and absorbing nitrogen oxide (NOx), and a noble metal-series reducing catalyst disposed on the surface of said brown millerite composite oxide. The brown millerite composite oxide is represented by one of the following formulae: A3-aBaC4-bDbO9, A2-aBaC2-bDbO5, and A1-aBaC2-bDbO4 where A and B are elements selected from the group consisting of Ba, Ca, Sr, Mg and Ce, C and D are elements selected from the group consisting of Y, Dy, Zn, Ti, Mn, Fe, Co, Ni, Cu, Sn, Zr and Nd, a is within the range 0≦a<1, and b is within the range 0≦b<2.

Abstract: The present invention provides a structure of a rotor for a generator in which a rotor capable of being ground very easily with a high accuracy is incorporated. This structure of a rotor comprises a rotor mounted fixedly on a rotary shaft supported rotatably on housings. The rotor comprises cylindrically arranged members in which segmental members of permanent magnets are assembled together cylindrically, and an outer cylinder provided on an outer circumference of the cylindrically arranged members and comprising windings or woven cloths of fibers. A resin material capable of being ground is packed in clearances between the cylindrically arranged members and outer cylinder and in the clearances in the outer cylinder.

Abstract: This ceramic heater is increased in bulk density and decreased in production cost by using an unsintered composite as an unsintered filling member filled in a protective pipe without application thereto of a filling pressure while preventing a heating element from deteriorating. In this ceramic heater, the heating element capable of heating by flowing electricity therethrough is disposed in the protective pipe, which is filled with the unsintered composite. In the unsintered composite, inorganic compound particles are disposed between insulating ceramic particles. In this ceramic heater, the heating element is fixed to the inner wall surface of the protective pipe with a heat-resistant glass layer. The heat-resistant glass layer is partially penetrated into the unsintered composite. The open end portion of the protective pipe is hermetically sealed with a heat-resistant sealing member while allowing extension of lead wires from the end portion of the protective pipe.

Abstract: A heat exchange apparatus has heat exchangers comprising porous material of improved heat exchange efficiency provided in an exhaust passage, and a ceramic engine provided with a supercharger comparing a steam turbine driven by the steam generated in the heat exchanger apparatus. The heat exchange apparatus comprises a high temperature heat exchanger having a steam passage provided in an exhaust gas passage through which an exhaust gas passes whereby steam is heated, and a low temperature heat exchanger provided in the portion of the exhaust gas passage on the downstream side of the high temperature heat exchanger which has a water passage for heating water by the exhaust gas. The ceramic engine has a steam turbine type supercharger provided with a steam turbine driven by the steam from the high temperature heat exchanges, a compressor, and a condenser which separates a fluid discharged from the steam turbine into water and low temperature steam.

Abstract: This invention provides a cogeneration system formed compactly and provided with a plurality of generators, wherein a plurality of miniaturized generators are coupled to a flywheel provided in an engine. In this cogeneration system, a toothed endless belt is meshed with a toothed portion formed on an outer circumference of the flywheel provided in an engine, and electric power is generated by driving a plurality of generators by the toothed endless belt via speedup gears. The electric power generated by the generators is synthesized and then transformed by a transformer, and the resultant electric power is consumed by a load via a rectifying diode and an inverter.

Abstract: This ceramic sheath type thermocouple has a long service life, an improved temperature measuring responsibility and an improved temperature measuring precision, and enables repetitive use. The ceramic sheath type thermocouple has its protective tube 1 formed of a heat resisting ceramics selected from silicon nitride, sialon and silicon carbide. In the protective tube 1 are installed a pair of W--Re wires that are connected to form a joint portion constituting a temperature measuring point 5. A filler made of Si.sub.3 N.sub.4 reaction-sintered ceramics is loaded into the front end portion of the protective tube to enclose the W--Re wires. Another filler made of SiC whisker with a heat conductivity smaller than that of the filler of the front end portion is loaded into the rear portion of the protective tube. An inert gas is sealed in the protective tube.

Abstract: Disclosed a thermal- and sound-insulating container having a chamber, which is defined by multilayer wall structure including vacuum layers therein. The chamber is made as small as possible the surface area thereof to achieve the high insulating effectiveness. The thermal- and sound-insulating container is comprised of the multilayer wall structure with vacuum layers therein, which constitutes the chamber defined in a hollow cylinder partially having a flat secant face, the hollow cylinder having a cross section of a circle or an ellipse that closely resembles the circle. The multilayer wall structure is composed of a pair of confronting frames arranged spaced away from each other, surface panels attached to the frames to define an empty space between the confronting frames, and sealing members arranged between the frames and the peripheries of the surface panels so as to keep the space at vacuum.

Abstract: This hybrid powered automobile has generators driven by the engine and a battery, and also includes a controller that selects the motive power in compliance with regulations on noise and NOx. The controller of the hybrid powered automobile selects whether the vehicle is to be driven by the electricity of the generators driven by the engine or by the electricity of the battery. When the battery charge level is lower than a specified level, the engine is operated in a range where the engine produces a minimum amount of NOx and the mileage does not deteriorate. When the vehicle is traveling in areas where release of exhaust emissions is permitted, the engine is operated to generate electricity to recharge the battery. The control of switching the motive power between the engine and the battery is performed by receiving a signal transmitted from a traffic light equipment elected on the road.

Abstract: This heat recovering apparatus for a cogeneration system with an engine comprises a turbocharger driven by an exhaust gas, an energy recovering turbine provided on the downstream side of the turbocharger, and a heat exchanger provided on the downstream side of the energy recovering turbine. The energy recovering turbine comprises a gas turbine driven by an exhaust gas, and a steam turbine driven by steam occurring in the heat exchanger. The heat exchanger comprises a casing joined to an exhaust gas passage, oxidation resisting ceramic pipes, in which the water and steam flow, provided in the casing, and oxidation resisting ceramic porous members, through which an exhaust gas can pass, provided in the portions of the interior of the casing which are on the outer sides of the ceramic pipes.

Abstract: The gas engine with a gas fuel reforming device thermally decomposes CH.sub.4, a major component of natural gas, into a reformed fuel of CO and H.sub.2 to increase the heat produced and thereby reduce the CO.sub.2 content in the exhaust gas and prevent the formation of NO.sub.x. The gas engine mixes CH.sub.4 with CO.sub.2 and sends the gas mixture to the catalyst reactor installed in the exhaust passage where the gas mixture is thermally decomposed into a reformed fuel by using the thermal energy of the exhaust gas. CO.sub.2 is extracted from the exhaust gas by the CO.sub.2 supply device which in turn sends the CO.sub.2 to the catalyst reactor. The CO.sub.2 supply device comprises a CO.sub.2 dissolving device that accommodates a solution to dissolve CO.sub.2 of low-temperature exhaust gas and a CO.sub.2 delivery device installed in the exhaust passage through which high-temperature exhaust gas flows and adapted to release CO.sub.2 from the solution supplied from the CO.sub.2 dissolving device. The CO.sub.

Abstract: In the combustion chamber structure of the gas engine the combustion chamber members are formed with the sub-communication holes allowing communication between the main combustion chambers and the pre-combustion chambers and also with throat holes in which throat hole valves are installed. This structure avoids excessively high compressed air pressure in the main combustion chambers during the compression stroke and reduces the compression work to improve performance. The sub-communication holes open at the wall surfaces situated in the main combustion chambers and also at the upper wall surfaces of the pre-combustion chambers. The axes of the ports of the sub-communication holes opening to the main combustion chambers extend toward the center axes of the throat holes. The axes of the ports of the sub-communication holes opening to the pre-combustion chambers extend offset from the center axes of the pre-combustion chambers.

Abstract: A synchronous generator which is driven by an engine whose rotation variation is large and which can easily incorporate an output voltage stabilization circuit. In this synchronous generator, magnetism shorting paths for a magnetic field produced by the armature coil is formed without changing the armature specifications. Magnetic fluxes produced by currents flowing in the armature coils can easily pass through the magnetism shorting paths, thereby increasing the equivalent inductance value and improving the frequency characteristic of the inductance. This in turn improves the voltage step-up chopper characteristic during generation to stabilize the generated voltage of the synchronous generator driven by, for example, an automobile engine that widely varies in revolution speed.