Abstract: Provided is a fuel cell system including a fuel cell module that includes a fuel cell and a reformer. The fuel cell system includes: a housing including a high temperature chamber in which the fuel cell module is disposed, and a low temperature chamber in which a gas supply system configured to supply a fuel and an oxidant to the fuel cell module is disposed; and a heat insulating partition wall that partitions a section of the housing to define the high temperature chamber and the low temperature chamber and that is formed with supply passages configured to allow supply of the fuel and the oxidant to the fuel cell module by the gas supply system.

Abstract: Provided is a fuel cell system including a fuel cell module that includes a fuel cell and a reformer. The fuel cell system includes: a housing including a high temperature chamber in which the fuel cell module is disposed, and a low temperature chamber in which a gas supply system configured to supply a fuel and an oxidant to the fuel cell module is disposed; and a heat insulating partition wall that partitions a section of the housing to define the high temperature chamber and the low temperature chamber and that is formed with supply passages configured to allow supply of the fuel and the oxidant to the fuel cell module by the gas supply system.

Abstract: A sliding seal seals an annular gap between a first member and a second member to separate a high-pressure side and a low-pressure side from each other, the first member being movable relative to the second member. The sliding seal is provided at an annular attaching groove provided at the second member. The sliding seal includes: a pressure fluid seal configured to slidingly contact a sliding surface of the first member; and a lubricant holding piece provided at the high-pressure side of the pressure fluid seal, a lubricant storage space being formed between the lubricant holding piece and the pressure fluid seal.

Abstract: A sliding seal seals an annular gap between a first member and a second member to separate a high-pressure side and a low-pressure side from each other, the first member being movable relative to the second member. The sliding seal is provided at an annular attaching groove provided at the second member. The sliding seal includes: a pressure fluid seal configured to slidingly contact a sliding surface of the first member; and a lubricant holding piece provided at the high-pressure side of the pressure fluid seal, a lubricant storage space being formed between the lubricant holding piece and the pressure fluid seal.

Abstract: A hydrogen gas supply device supplies hydrogen gas to a fuel cell stack and includes an electromagnetic pressure regulating valve that regulates the pressure of the hydrogen gas to low pressure. The electromagnetic pressure regulating valve includes a housing, and a valve passage connecting a primary port and a secondary port is formed in the housing. A valve body controls an opening degree of the valve passage and is provided in the housing. A high-pressure sealing member and low-pressure sealing member are provided on an outer periphery of the valve body. The high-pressure sealing member and the low-pressure sealing member are provided in this order from one end side of the valve body to the other end side thereof. The electromagnetic pressure regulating valve further includes a housing pressure equalizing passage connecting the secondary port and a buffer chamber formed between the high-pressure sealing member and the low-pressure sealing member.

Abstract: A sliding seal seals an annular gap between a first member and a second member to separate a high-pressure side and a low-pressure side from each other, the first member being movable relative to the second member. The sliding seal is provided at an annular attaching groove provided at the second member. The sliding seal includes: a pressure fluid seal configured to slidingly contact a sliding surface of the first member; and a lubricant holding piece provided at the high-pressure side of the pressure fluid seal, a lubricant storage space being formed between the lubricant holding piece and the pressure fluid seal.

Abstract: A hydrogen gas supply device supplies hydrogen gas to a fuel cell stack and includes an electromagnetic pressure regulating valve that regulates the pressure of the hydrogen gas to low pressure. The electromagnetic pressure regulating valve includes a housing, and a valve passage connecting a primary port and a secondary port is formed in the housing. A valve body controls an opening degree of the valve passage and is provided in the housing. A high-pressure sealing member and low-pressure sealing member are provided on an outer periphery of the valve body. The high-pressure sealing member and the low-pressure sealing member are provided in this order from one end side of the valve body to the other end side thereof. The electromagnetic pressure regulating valve further includes a housing pressure equalizing passage connecting the secondary port and a buffer chamber formed between the high-pressure sealing member and the low-pressure sealing member.

Abstract: In a reforming reactor (31), a partial oxidation reaction is performed between a hydrocarbon fuel and air, and in a mixer (32), water is injected into hot gas heated by the partial oxidation reaction to vaporize the water, and the vaporized water is mixed with the hot gas. In a shift reactor (33), the vaporized water is made to undergo a shift reaction with the hot gas. In this way, a device for promoting vaporization of the water or a complex fuel injection device is not required.

Abstract: A piezoelectric material includes a polycrystalline piezoelectric compound having a component composition defined as Sr2-xCaxNaNb5O15, where x=0.05 to 0.35, and at least one rare earth oxide compound selected from the group consisting of Y2O3, La2O3, Dy2O3, Nd2O3, Yb2O3, Sm2O3, Er2O3, Gd2O3 and Pr6O11 to be added to the piezoelectric compound by 0.5 to 3.0 wt %. Moreover, a method of manufacturing the piezoelectric material includes blending ceramic materials, synthesizing, milling, pressing and sintering processes. In the synthesizing process, calcining is conducted at a temperature in a range from 1,050° C. to 1,150° C. for 2 to 12 hours in the atmosphere. And the sintering process includes first firing at temperature in a range from 1,180° C. to 1,270° C. for 4 to 8 hours in the atmosphere, and second firing at a temperature in a range from 1,370° C. to 1,400° C. for 10 to 75 hours in the atmosphere.

Abstract: In a reforming reactor (31), a partial oxidation reaction is performed between a hydrocarbon fuel and air, and in a mixer (32), water is injected into hot gas heated by the partial oxidation reaction to vaporize the water, and the vaporized water is mixed with the hot gas. In a shift reactor (33), the vaporized water is made to undergo a shift reaction with the hot gas. In this way, a device for promoting vaporization of the water or a complex fuel injection device is not required.

Abstract: A reformer (5) which generates hydrogen-rich reformate gas by causing a catalytic reaction of fuel and air comprises a premixing chamber (12) for premixing the fuel with the air. High temperature air is supplied to the premixing chamber (12) from an air intake tube (13) via an orifice (14). A fuel injector (16) injects the fuel into the flow of the high temperature air in the premixing chamber (12) to generate fuel-air mixture. A homogenizing filter (17) homogenizes the composition of the fuel-air mixture in the premixing chamber (12) and supplies a uniform fuel-air mixture to a reforming catalyst (11).

Abstract: A piezoelectric material includes a polycrystalline piezoelectric compound having a component composition defined as Sr2-xCaxNaNb5O15, where x=0.05 to 0.35, and at least one rare earth oxide compound selected from the group consisting of Y2O3, La2O3, Dy2O3, Nd2O3, Yb2O3, Sm2O3, Er2O3, Gd2O3 and Pr6O11 to be added to the piezoelectric compound by 0.5 to 3.0 wt %. Moreover, a method of manufacturing the piezoelectric material includes blending ceramic materials, synthesizing, milling, pressing and sintering processes. In the synthesizing process, calcining is conducted at a temperature in a range from 1,050° C. to 1,150° C. for 2 to 12 hours in the atmosphere. And the sintering process includes first firing at temperature in a range from 1,180° C. to 1,270° C. for 4 to 8 hours in the atmosphere, and second firing at a temperature in a range from 1,370° C. to 1,400° C. for 10 to 75 hours in the atmosphere.

Abstract: An acrylic resin composition comprises an organic silicon based compound that can be copolymerised with or mixed with acryl monomer or methacryl monomer in the acrylic resin. The acrylic resin composition may contain inorganic fine grains of which the hydroxyl group or the methyl group is bonded to their surface. A painted-film molded resin plate and a coating member for a solar cell panel use the above acrylic resin composition.

Abstract: A solid electrolyte used in a cell and represented by the following formula: La(1−x−y)LnxAyGa(1−z)BzO3−0.5(x+y+z) where Ln is at least one element selected from the group consisting of Gd, Sm and Nd; A is Ba; B is Mg; x is 0.1; y is 0.1; and z is 0.2, wherein the solid electrolyte is formed of particles whose means diameter is within a range of from 4 to 10 &mgr;m, the solid electrolyte being produced by a method comprising: (a) mixing lanthanum oxide, gallium oxide, oxide of at least one rate earth element selected from the group consisting of Gd, Sm and Nd, barium oxide and magnesium oxide to form a mixture; (b) firing the mixture in air at a temperature ranging from 1100 to 1200° C. for a time ranging from 2 to 8 hours to accomplish synthesizing a compound material; (c) pulverizing the compound material; (d) compacting the pulverized compound material; (e) adjusting mean diameter of the pulverized compound material within a range of from 0.5 to 0.

Abstract: An acrylic resin composition comprises an organic silicon based compound that can be copolymerised with or mixed with acryl monomer or methacryl monomer in the acrylic resin. The acrylic resin composition may contain inorganic fine grains of which the hydroxyl group or the methyl group is bonded to their surface. A painted-film molded resin plate and a coating member for a solar cell panel use the above acrylic resin composition.

Abstract: To obtain stable linear torque-output characteristics over a wide torque range in a magnetostrictive torque detecting apparatus having a shaft to be measured, an exciting coil for magnetically exciting the shaft, and a detecting coil for detecting magnetostrictive components generated in the shaft distorted by a torque, the shaft is particularly composed of a substrate shaft portion made of a high yield point material and a shape anisotropic layer portion made of a high magnetostrictive material metallographically welded on an outer surface of the substrate shaft. The welded shape anisotropic layer portion is formed with two symmetrical groups of concave/convex portions each arranged at regular angular intervals on the outer circumferential surface thereof at an inclination angle with respect to the axial direction of the shaft.