Abstract: A wheel drive device that drives a wheel includes an output member, and a wheel member that is connected to the output member, in which the output member and the wheel member include a spigot fitting portion in which an outer peripheral spigot surface and an inner peripheral spigot surface are spigot-fitted, an anti-fretting agent is applied to the spigot fitting portion, and a seal member that prevents leakage of the anti-fretting agent is disposed between the output member and the wheel member.

Abstract: A rotary electrical machine structure support that can have strength high enough to endure vibration and strain while suffering less defects, deformation, peeling, and breakage is manufactured. A method of manufacturing a rotary electrical machine structure support includes: an arranging step of arranging a first joining object member and a second joining object member composed of stacked and integrated plate materials and thicker than the first joining object member, with their end parts in contact with each other; and a joining step of making a rotary driven tool penetrate into a boundary part between the first and second joining object members whose end parts are in contact with each other, from a first outer surface side of the boundary part, and sliding the tool along an interface of the boundary part, whereby a rotary electrical machine structure support composed of the joined first and second joining object members is obtained.

Abstract: A method of manufacturing a rotor coil of to an embodiment includes preparing a wire strand bundling a plurality of wires and a reinforcing member configured to reinforce the wire strand; arranging the wire strand and the reinforcing member to bring an end of the wire strand and an end of the reinforcing member into contact with each other, the wire strand being arranged to have a longitudinal direction perpendicular to a boundary between the wire strand and the reinforcing member and to include the plurality of wires with an inclined longitudinal direction thereof on a first outer surface inclining with respect to the longitudinal direction of the wire strand; rotary driving a tool at the boundary on the first outer surface so as to enter the boundary; and moving the rotary driven tool on the boundary along the first outer surface.

Abstract: According to one embodiment, configured to be charged by a charger, an electronic apparatus comprises a first housing, a display device, a power reception unit and a second housing. Arranged in the first housing, the display device comprises a display screen. The power reception unit is arranged at the first housing in a position overlapping the display device on a side opposite to the display screen and in a position eccentric from a center of the display device, and configured to receive an electricity transmitted from a power transmission unit of the charger with the first housing standing on an exterior setting surface. The second housing is configured to support the first housing with standing on the exterior setting surface, and an input device on the second housing.

Abstract: According to one embodiment, a method of driving a fuel cell device includes calculating a fuel shortage based on a difference between the fuel concentration detected by a concentration sensor element and a predetermined desired fuel concentration, and obtaining an efficiency of electricity generation of an electromotive section based on the temperature of the electromotive section detected by a temperature sensor element and the load current measured by a control section. The method includes calculating a fuel consumption by the electromotive section for electricity generation based on the output of the electromotive section and the obtained electricity generation efficiency, and replenishing by a supply section a mixing tank with an amount of fuel equivalent to the sum of the calculated fuel shortage and the calculated fuel consumption, thereby controlling the concentration of the fuel supplied to the electromotive section.

Abstract: According to one embodiment, a charger includes a fuel cell configured to generate electricity, an intake/exhaust unit configured to supply air to the fuel cell and discharge an emission from the fuel cell, a fuel tank configured to supply fuel to the fuel cell, and a power transmission unit configured to transmit the electricity generated in the fuel cell in a non-contact manner. The power transmission unit and the intake/exhaust unit are oriented in different directions.

Abstract: According to one embodiment, a power supply device includes a fuel cell, a pipe passage, a fuel pump, a component, a tilt sensor, a pressure regulator, a pressure calculator, and a pressure controller. The fuel cell generates electric power using liquid fuel. The pipe passage supplies the liquid fuel to the fuel cell. The fuel pump sends the liquid fuel to the pipe passage. The component is located in the pipe passage. The tilt sensor detects a tilt angle of the component. The pressure regulator regulates the pressure of the liquid fuel applied to the component. The pressure calculator calculates a variation in the pressure of the liquid fuel applied to the component based on the distance between the component and the pressure regulator and the tilt angle. The pressure controller controls the pressure regulator to maintain the pressure applied to the component within an allowable pressure range.

Abstract: According to one embodiment, a fuel cell apparatus includes a cell stack of an active direct methanol type, and a DC-DC converter configure to receive output voltage of the cell stack and to control an output current of the cell stack so that the output voltage of the cell stack becomes greater than a lower-limit threshold Vt and the output current of the cell stack lies in a range of I1 to I2 (<I1).

Abstract: According to one embodiment, a cell stack of a fuel cell device comprises a positive electrode including a anode separator, and a pair of anode plates laminated opposite first and second contact surfaces of the anode separator, a pair of negative electrodes laminated individually on the opposite sides of the positive electrode, and electrolyte layers. The negative electrode includes a cathode plate opposed to each corresponding anode plate with a gap therebetween and a cathode separator provided with a contact surface opposed to the cathode plate. The anode separator includes first fuel channels formed in the first contact surface, second fuel channels formed in the second contact surface, and cooling channels formed between the first and second contact surfaces and through which a coolant is circulated. The cathode separator includes a plurality of air channels formed in the contact surface and through which air is supplied to the cathode plate.

Abstract: According to one embodiment, a fuel cell device comprises an electromotive section which is provided with a cell including an anode and a cathode opposed to each other and configured to generate electricity in consequence of a chemical reaction, a fuel tank configured to store a fuel, a fuel channel in which the fuel flows through the anode, an air channel in which air flows through the cathode, a cooling channel which diverges from the fuel channel and extends through the electromotive section, and a fuel supply section configured to supply the fuel from the fuel tank to the anode through the fuel channel and configured to flow some of the fuel from the cooling channel through the electromotive section to cool the electromotive section.

Abstract: According to an embodiment, a fuel cell apparatus comprises an electromotive section including a cell including an anode and a cathode, and configured to generate electricity by a chemical reaction, a fuel tank configured to store fuel, a fuel channel configured to flow fuel through the anode, and an air channel configured to flow air through the cathode, a fuel supply device configured to supply fuel supplied from the fuel tank to the anode through the fuel channel, and a cell controller configured to control a generated electricity drawn out from the electromotive section and execute a refresh process for drawing out a current of a current value which is generated when an amount of air larger than the amount of air supplied to the cathode is consumed.

Abstract: According to one embodiment, a fuel cell apparatus includes a cell stack of an active direct methanol type, and a DC-DC converter configure to receive output voltage of the cell stack and to control an output current of the cell stack so that the output voltage of the cell stack becomes greater than a lower-limit threshold Vt and the output current of the cell stack lies in a range of I1 to I2 (<I1).

Abstract: A method for operating a fuel cell system includes: disconnecting a connection between a cell and an electrical load, driving a fan and a circulation pump so as to circulate the fuel in a route from a buffer unit to the buffer unit through an anode electrode of the cell with a secondary battery when a detected amount of the fuel stored in a buffer unit is larger than a an upper-limit threshold value and a detected temperature of the cell or fuel is lower than or equal to a temperature threshold value.

Abstract: According to one embodiment, a method of driving a fuel cell device includes calculating a fuel shortage based on a difference between the fuel concentration detected by a concentration sensor element and a predetermined desired fuel concentration, and obtaining an efficiency of electricity generation of an electromotive section based on the temperature of the electromotive section detected by a temperature sensor element and the load current measured by a control section. The method includes calculating a fuel consumption by the electromotive section for electricity generation based on the output of the electromotive section and the obtained electricity generation efficiency, and replenishing by a supply section a mixing tank with an amount of fuel equivalent to the sum of the calculated fuel shortage and the calculated fuel consumption, thereby controlling the concentration of the fuel supplied to the electromotive section.

Abstract: According to an embodiment, a fuel cell device includes an electromotive section which has an anode and a cathode and generates electricity, a tank, a fuel channel through which fuel supplied from the tank is run via the anode side of the electromotive section, a flow regulator section which adjusts a flow rate of the fuel supplied to the anode, a sensor which detects an amount of the fuel in the tank, and a cell control section. The cell control section causes the flow regulator section to adjust the fuel flow rate to an upper limit value of an adjustable range when an increase in the amount of fuel in the tank is detected by the sensor and to adjust the fuel flow rate to a minimum necessary flow rate for an electricity generation operation when a reduction of the amount of fuel in the tank is detected.

Abstract: A fuel cell unit is attachable to a main unit of an electronic appliance having an air-inhaling inlet for inhaling open air for cooling internal components and an area where no air-inhaling inlet is formed, and includes: a fuel cell that generates water upon power generation and supplies power to the electronic appliance; and a vapor exhaust outlet for exhausting vapor containing the generated water at a position lower, in a posture in general use, to the area of the main unit where no air-inhaling inlet is formed.

Abstract: A fuel cell system includes an information processor and a fuel cell unit connected to the information processor. The fuel cell unit has a cell stack which includes a plurality of single cells stacked in layers on one another, a fuel passage, and an air passage, and generates electric power based on a chemical reaction, a fuel supply section which supplies a fuel to the anode through the fuel passage, and an air supply section which supplies air to the cathode through the air passage. The information processor has a power controller which manages an operation of the fuel cell unit. The power controller stops power generation in the cell stack and executes maintenance processing such that air from the air supply section is caused to flow through the air passage of the cell stack, when generated power output of the cell stack is lower than a predetermined output.

Abstract: A fuel cell system includes an anode electrode to which fuel is to be supplied; a cathode electrode to which an oxidant containing air or oxygen is to be supplied; an electrolyte membrane disposed between the anode electrode and the cathode electrode; a catalyst section configured to accelerate a chemical reaction of at least a portion of a material discharged from the cathode electrode and a material discharged from the anode electrode; an oxidant supply unit configured to supply the oxidant to the cathode electrode; and a control unit configured to control an amount of the oxidant to be supplied to the cathode electrode. The control unit controls the oxidant supply unit to increase the amount of the oxidant to be supplied to the cathode electrode when the oxidant supply unit starts to operate.

Abstract: According to one embodiment, a fuel cell unit has a fuel cell, a fuel supply path, a suction port, and an exhaust port. The fuel cell has a fuel pole and an air pole. The fuel supply path supplies fuel to the fuel pole of the fuel cell. The suction port takes in air for generation of electric power. The exhaust port exhausts gaseous matter after generation of electric power discharged from the air pole of the fuel cell. The suction port and exhaust port are opened in the directions different from each other.

Abstract: According to one embodiment, a fuel cell comprises an electromotive section, a fuel tank, a mixing tank in which the fuel supplied from the fuel tank is mixed with water from the electromotive section and an aqueous fuel solution is formed, a first line through which the fuel is circulated between the electromotive section and the mixing tank, a cooler which cools a product from the electromotive section, and a second line through which the aqueous fuel solution is refluxed to the mixing tank through a branch on the first line. A concentration sensor is arranged in the second line and detects a fuel concentration of the aqueous fuel solution in the second line. A fuel cooling section is arranged in the second line, formed integrally with the cooler and cools the aqueous fuel solution delivered to the concentration sensor.