Abstract: A machining apparatus includes an apparatus body and a setting jig. The setting jig has a frame body including openings to expose molding regions, which are to be molded by the apparatus body, of the sheet material, and a restraining portion to restrain a periphery of the molding regions. The apparatus body includes a support member that supports the setting jig at a position where the molding regions are disposed between an upper die and a lower die, and a first urging member to urge the support member toward the upper die so as to separate the molded body from the lower die, with the upper die disengaged from the lower die.

Abstract: A fuel cell separator capable of surely discharging produced water, and a method and apparatus for producing the same. The fuel cell separator is formed in a wave shape with recesses and projections alternately arranged in a first direction, the recesses forming reactant gas channels together with a membrane electrode assembly and the projections abutting the membrane electrode assembly, in which on a surface of the fuel cell separator that is adapted to face the membrane electrode assembly, a plurality of first grooves extending in the first direction along the corrugation of the recesses and projections is disposed at intervals from each other in a second direction orthogonal to the first direction, and a second groove extending in the second direction and communicating with the plurality of first grooves is disposed in the bottom portion of each recess.

Abstract: A manufacturing method for a fuel cell separator includes preparing a separator member in which an uncured thermosetting resin layer is provided on a surface of a core member, as a preparation step; and pressing the separator member while heating the separator member so that a gas flow passage is formed in the separator member while the uncured thermosetting resin layer is cured, as a hot-press step.

Abstract: There are included a preparing step of preparing a separator base member having a core member of which surfaces are coated with a coating material having a higher radioparency than that of the core member; a press-forming step of press-forming the separator base member in a predetermined shape; and an examining step of examining the separator base member after the press-forming step using an X-ray having an output at which the X-ray passes through the coating material.

Abstract: Provided is a method for manufacturing a lighter separator for fuel cell that suppresses problems during the forming. The method forms a separator for fuel cell, and the separator includes a flow-channel part that defines a flow channel of fluid, and a seal part that surrounds the flow-channel part and seals the fluid. The method includes: an embedding step of embedding wire members in uncured thermosetting resin containing conductive particles; and a forming step of curing the thermosetting resin having the wire members embedded therein in a die to form the separator.

Abstract: A fuel cell separator capable of surely discharging produced water, and a method and apparatus for producing the same. The fuel cell separator is formed in a wave shape with recesses and projections alternately arranged in a first direction, the recesses forming reactant gas channels together with a membrane electrode assembly and the projections abutting the membrane electrode assembly, in which on a surface of the fuel cell separator that is adapted to face the membrane electrode assembly, a plurality of first grooves extending in the first direction along the corrugation of the recesses and projections is disposed at intervals from each other in a second direction orthogonal to the first direction, and a second groove extending in the second direction and communicating with the plurality of first grooves is disposed in the bottom portion of each recess.

Abstract: A manufacturing method for a fuel cell separator includes preparing a separator member in which an uncured thermosetting resin layer is provided on a surface of a core member, as a preparation step; and pressing the separator member while heating the separator member so that a gas flow passage is formed in the separator member while the uncured thermosetting resin layer is cured, as a hot-press step.

Abstract: There are included a preparing step of preparing a separator base member having a core member of which surfaces are coated with a coating material having a higher radioparency than that of the core member; a press-forming step of press-forming the separator base member in a predetermined shape; and an examining step of examining the separator base member after the press-forming step using an X-ray having an output at which the X-ray passes through the coating material.

Abstract: An exhaust gas control apparatus for an engine and a method for producing the same are provided. The exhaust gas control apparatus includes a valve portion, an absorption portion, and a catalyst portion. The valve portion includes a valve that opens/closes a main exhaust passage. The absorption portion includes a hydrocarbon-absorbent that absorbs hydrocarbons. The catalyst portion includes a three-way catalyst that purifies exhaust gas. The valve portion, absorption portion, and the catalyst portion are independent of each other. The valve portion, the absorption portion, and the catalyst portion are connected to each other in series. With this configuration, any individual component can be replaced with another corresponding component that achieves a required level of performance while minimizing the number of other components.

Abstract: A hydroforming machine characterized by a die 2 having an opening on the upper surface and a fluid tank 2a filled with fluid, a holder 3 being able to hold a periphery part between the die 2 and itself, a punch 4 being movable in a direction into or out for the fluid tank 2a, and a pressure controller 5 controlling the fluid pressure in the fluid tank 2a according to the position of the punch 4.

Abstract: A concentric double exhaust pipe for an internal combustion engine includes an outer pipe 10 and an inner pipe 20. The outer pipe 10 and inner pipe 20 have basal ends fixed to each other. A seal member 30 arranged between the two pipes 10 and 20 enable sliding of distal ends of the outer pipe 10 and the inner pipe 20 during thermal expansion. When manufacturing the concentric double exhaust pipe, the outer pipe 10 is compressed after attaching the seal member 30 between an inner surface of the outer pipe 10 and an outer surface of the inner pipe 20 so as to compress the seal member 30 to a predetermined outer diameter.

Abstract: The present invention suggests a pipe manufacturing method by new plastic bonding with high bonding power and adopted to a thin pipe. With regard to the pipe manufacturing method that bonding fins 3a and 3b are provided at edges 2a and 2b of plural split pipes 2A and 2B split along longer direction and the split pipes 2A and 2B are united by caulking the bonding fins 3a and 3b of the split pipes 2A and 2B, the bonding fin 3a is wound around the other bonding fin 3b for caulking them so as to form creases 35 circularly centering on an axis of the roll form.

Abstract: A hydroforming machine characterized by a die 2 having an opening on the upper surface and a fluid tank 2a filled with fluid, a holder 3 being able to hold a periphery part between the die 2 and itself, a punch 4 being movable in a direction into or out for the fluid tank 2a, and a pressure controller 5 controlling the fluid pressure in the fluid tank 2a according to the position of the punch 4.

Abstract: An exhaust gas control apparatus for an engine and a method for producing the same are provided. The exhaust gas control apparatus includes a valve portion, an absorption portion, and a catalyst portion. The valve portion includes a valve that opens/closes a main exhaust passage. The absorption portion includes a hydrocarbon-absorbent that absorbs hydrocarbons. The catalyst portion includes a three-way catalyst that purifies exhaust gas. The valve portion, absorption portion, and the catalyst portion are independent of each other. The valve portion, the absorption portion, and the catalyst portion are connected to each other in series. With this configuration, any individual component can be replaced with another corresponding component that achieves a required level of performance while minimizing the number of other components.

Abstract: A catalyst container of a catalytic converter is of a double-pipe structure wherein an outer periphery of an inner pipe and an inner periphery of an outer pipe are fittingly superposed on each other. The catalyst container has a catalyst installing portion, tapered cone portions extending from the catalyst installing portion with a gradually decreasing diameter, and straight connecting portions extending from smallest-diameter regions of the cone portions to the ends to be connected with connecting pipes upstream and downstream of the catalytic converter. Holes maybe formed in the cone portions of one of the inner or outer pipes to permit fluids to be displaced from the space therebetween. Such a catalyst container has sufficient rigidity and radiated noise suppression properties and thus can be reduced in weight by being thinned.

Abstract: A catalyst container of a catalytic converter is of a double-pipe structure wherein an outer periphery of an inner pipe and an inner periphery of an outer pipe are fittingly superposed on each other. The catalyst container has a catalyst installing portion, tapered cone portions extending from the catalyst installing portion with a gradually decreasing diameter, and straight connecting portions extending from smallest-diameter regions of the cone portions to the ends to be connected with connecting pipes upstream and downstream of the catalytic converter. Holes maybe formed in the cone portions of one of the inner or outer pipes to permit fluids to be displaced from the space therebetween. Such a catalyst container has sufficient rigidity and radiated noise suppression properties and thus can be reduced in weight by being thinned.

Abstract: A fuel reformer suited for mounting on a vehicle is provided. A raw material gas containing methanol and water is vaporized at a vaporization section 30. The vaporized gas flows horizontally to a reforming section 60 with monolithic catalyst 70. The reforming section is divided into two sides, a front side 62 and a rear side 64, with an interconnecting pipe 66 bent at 180 degrees, for connecting the front and rear sides. By making the material gas flow horizontally, even when the reformer is mounted to a vehicle which has a larger space in its horizontal direction than in its vertical direction, especially a small passenger car, the contact time period between gas and catalyst can be extended. By bending the reforming section by 180 degrees, the size of the reformer can be reduced so that the reformer is suited for mounting on a vehicle having limited space.