Abstract: A moving body, such as a vehicle, having one or more fuel cells mounted thereon. The fuel cells, which power the moving body, generate electricity and release water as a by-product. Accordingly, the moving body includes a water discharge module that releases water produced by the fuel cells to the atmosphere using a water outlet. The water outlet may be located in a front section of the moving body. The moving body may further include a water tank that temporarily stores water before releasing the water to the atmosphere.

Abstract: There is provided a hybrid stepping motor including a rotor including a plurality of rotor small teeth arranged on an outer circumferential surface thereof, and a stator including a plurality of salient poles, each including a plurality of stator small teeth. The stator small teeth have a predetermined stator tooth thickness and are arranged at a predetermined stator tooth pitch, the rotor small teeth have a predetermined rotor tooth thickness and are arranged at a predetermined rotor tooth pitch, and a facing area which is a difference between an area of attraction poles of the stator small teeth and the rotor small teeth and an area of repulsion poles thereof ranges between a maximum value in a parameter space of a dimensional ratio of the stator and/or the rotor and a threshold value of the maximum value.

Abstract: There is provided a hybrid stepping motor including a rotor including a plurality of rotor small teeth arranged at an equal pitch on an outer circumferential surface thereof, and a stator including a plurality of salient poles, each including a plurality of stator small teeth arranged to face the outer circumferential surface of the rotor via a gap. The stator small teeth have a predetermined stator tooth thickness and are arranged at a predetermined stator tooth pitch. The rotor small teeth have a predetermined rotor tooth thickness and are arranged at a predetermined rotor tooth pitch. A repulsion area ratio which is a ratio of an area of repulsion poles to a total area of all stator small teeth facing the rotor ranges from 0% to a predetermined threshold value.

Abstract: A railcar according to the present invention includes: an underframe including an end beam at its railcar-longitudinal-direction end portion; side bodyshells; a roof bodyshell; side outside plates respectively arranged at both railcar-width-direction end portions of the railcar and constituting the side bodyshells; corner posts extending from the end beam toward the roof bodyshell; and intermediate coupling members each configured to couple the side outside plate and the corner post, the stiffness of the intermediate coupling member in a railcar longitudinal direction being lower than the stiffness of the intermediate coupling member in a vertical direction.

Abstract: A railcar includes a side sliding door and entrance peripheral-member surrounding the side entrance. The entrance peripheral-member includes a door pocket post in which outer and inner portions are inwardly of the outer portion in car-width direction coupled to each other. The side sliding door peripheral portion is pressed against an edge portion, extending along the side entrance of the entrance peripheral-member via a rubber seal at the side entrance closed state. In the side entrance open state, the side sliding door is pulled into a door pocket space facing the door pocket post inner portion. A portion projecting inwardly in car-width direction beyond the inner portion and including a tip end contacting the rubber seal provided at at least part of region constituted by portions of upper and lower edges of the side entrance peripheral-member and lateral edge at the edge portion door pocket post side of the entrance peripheral-member.

Abstract: Water contained in exhaust gas discharged from a fuel cell stack is separated by a gas-liquid separator and is accumulated in a recovery tank. The procedure of the invention sets a release amount of water and selects one or multiple positions for water release, based on the driving conditions including the vehicle speed and the acceleration, the turning state, activation or non-activation of skid reduction control, the distance from any object detected by clearance sonars, a distance from a subsequent vehicle measured by an extremely high frequency radar, and the presence of raindrops detected by a raindrop detection sensor, and releases the water accumulated in the recovery tank from water outlets at the selected one or multiple positions among water outlets at multiple different locations. This arrangement ensures adequate release of the water produced by the fuel cell stack to the atmosphere.

Abstract: Water contained in exhaust gas discharged from a fuel cell stack is separated by a gas-liquid separator and is accumulated in a recovery tank. The procedure of the invention sets a release amount of water and selects one or multiple positions for water release, based on the driving conditions including the vehicle speed and the acceleration, the turning state, activation or non-activation of skid reduction control, the distance from any object detected by clearance sonars, a distance from a subsequent vehicle measured by an extremely high frequency radar, and the presence of raindrops detected by a raindrop detection sensor, and releases the water accumulated in the recovery tank from water outlets at the selected one or multiple positions among water outlets at multiple different locations. This arrangement ensures adequate release of the water produced by the fuel cell stack to the atmosphere.

Abstract: A moving body, such as a vehicle, having one or more fuel cells mounted thereon. The fuel cells, which power the moving body, generate electricity and release water as a by-product. Accordingly, the moving body includes a water discharge module that releases water produced by the fuel cells to the atmosphere using a water outlet. The water outlet may be located in a front section of the moving body. The moving body may further include a water tank that temporarily stores water before releasing the water to the atmosphere.

Abstract: The present invention provides a fuel cell system that controls a pressure for a fuel gas supplied to a fuel cell so that the anode-cathode differential pressure between an anode and a cathode of a fuel cell is maintained within a predetermined range, in order to provide a desired generation amount while reducing the amount of fuel gas discharged to the exterior of the system even if it is difficult to provide an appropriate fuel gas supply amount for a fuel cell load (the generation requirement on the cell). If the system determines that the amount of fuel gas supplied to the fuel cell is less than an appropriate required gas amount for the load (generation requirement) (step S9: NO), for example, if the concentration of nitrogen in the fuel gas reaches a predetermined value or greater, the open and close state of shut-off valves H3, H3A is switched to increase the pressure for the fuel gas supplied to the fuel cell 20 (step S11).

Abstract: The present invention provides a fuel cell system capable of accurately controlling the pressure of fuel gas supplied to the fuel cell, the fuel cell system comprising: a fuel gas supply line (SL) which supplies the fuel gas from a fuel gas supply source (11) to the fuel cell (10); pressure-regulating means (RG) provided on the fuel gas supply line (SL) and for regulating the pressure of the fuel gas supplied from the fuel gas supply source (11); and a circulation route (R) which returns the fuel gas discharged from the fuel cell (10) to the fuel gas supply line (SL), wherein the circulation route (R) is connected to the fuel gas supply line (SL) such that the fuel gas is returned thereto in the upstream of the pressure-regulating means (RG).

Abstract: A car includes a car equipment protection structure, The car equipment protection structure includes an underframe, couplers and guide members. Each of the guide members is provided on a railcar inner side of an attached flange portion of the underframe to which the couplers are attached. Moreover, the guide members respectively include inclined surfaces, each of which is opposed to at least a part of the coupler. Each of the inclined surfaces is inclined toward the railcar inner side as it extends downward.

Abstract: A moving body, such as a vehicle, having one or more fuel cells mounted thereon. The fuel cells, which power the moving body, generate electricity and release water as a by-product. Accordingly, the moving body includes a water discharge module that releases water produced by the fuel cells to the atmosphere using a water outlet. The water outlet may be located in a front section of the moving body. The moving body may further include a water tank that temporarily stores water before releasing the water to the atmosphere.

Abstract: A moving body, such as a vehicle, having one or more fuel cells mounted thereon. The fuel cells, which power the moving body, generate electricity and release water as a by-product. Accordingly, the moving body includes a water discharge module that releases water produced by the fuel cells to the atmosphere using a water outlet. The water outlet may be located in a front section of the moving body. The moving body may further include a water tank that temporarily stores water before releasing the water to the atmosphere.

Abstract: There is provided a hybrid stepping motor including a rotor including a plurality of rotor small teeth arranged at an equal pitch on an outer circumferential surface thereof, and a stator including a plurality of salient poles, each including a plurality of stator small teeth arranged to face the outer circumferential surface of the rotor via a gap. The stator small teeth have a predetermined stator tooth thickness and are arranged at a predetermined stator tooth pitch. The rotor small teeth have a predetermined rotor tooth thickness and are arranged at a predetermined rotor tooth pitch. A repulsion area ratio which is a ratio of an area of repulsion poles to a total area of all stator small teeth facing the rotor ranges from 0% to a predetermined threshold value.

Abstract: There is provided a hybrid stepping motor including a rotor including a plurality of rotor small teeth arranged on an outer circumferential surface thereof, and a stator including a plurality of salient poles, each including a plurality of stator small teeth. The stator small teeth have a predetermined stator tooth thickness and are arranged at a predetermined stator tooth pitch, the rotor small teeth have a predetermined rotor tooth thickness and are arranged at a predetermined rotor tooth pitch, and a facing area which is a difference between an area of attraction poles of the stator small teeth and the rotor small teeth and an area of repulsion poles thereof ranges between a maximum value in a parameter space of a dimensional ratio of the stator and/or the rotor and a threshold value of the maximum value.

Abstract: A moving body, such as a vehicle, having one or more fuel cells mounted thereon. The fuel cells, which power the moving body, generate electricity and release water as a by-product. Accordingly, the moving body includes a water discharge module that releases water produced by the fuel cells to the atmosphere using a water outlet. The water outlet may be located in a front section of the moving body. The moving body may further include a water tank that temporarily stores water before releasing the water to the atmosphere.

Abstract: A rolling device in which rust development or damage on a raceway surface or rolling surface is hard to occur even if water and the like intrude is provided. A self-aligning roller bearing comprises an inner ring 1, an outer ring 2, and a plurality of rolling elements 3 disposed rotatably between a raceway surface 1a of the inner ring 1 and a raceway surface 2a of the outer ring 2. At least any one of the inner ring 1, the outer ring 2, and the rolling elements 3 is provided with a metal coating formed by shot peening of a powder of metal less noble than iron at least on a part of its surface.

Abstract: A fuel cell system is provided with a judgment unit which makes a gas leak judgment based on a pressure drop of fuel gas in a gas leak detection portion by consuming the fuel gas in the gas leak detection portion of the fuel gas supply system by electric power generation of a fuel cell and causing auxiliary devices to consume the electric power generated by the fuel cell, and comprises a control unit which increases consumption of the fuel gas in the gas leak detection portion by increasing the electric power consumption of the auxiliary devices. With this arrangement, where the electric power generation of the fuel cell and the electric power consumption of the auxiliary devices result in an insufficient consumption of the fuel gas, the consumption of the fuel gas can be accelerated by increasing the electric power consumption of the auxiliary devices. Thereby, a rapid gas leak judgment can be achieved.

Abstract: A car includes a car equipment protection structure, The car equipment protection structure includes an underframe, couplers and guide members. Each of the guide members is provided on a railcar inner side of an attached flange portion of the underframe to which the couplers are attached. Moreover, the guide members respectively include inclined surfaces, each of which is opposed to at least a part of the coupler. Each of the inclined surfaces is inclined toward the railcar inner side as it extends downward.

Abstract: A fuel cell system (10) of the present invention comprises determination means (50) for consuming a fuel gas present at a gas leak detection portion of a fuel gas supply system (31, 32) through the power generation of a fuel cell (20), and performing a gas leak determination on the basis of a pressure decrease margin of the fuel gas present at the gas leak detection portion, and comprises discharge means (H51) for reducing the pressure at the gas leak detection portion by purging the fuel gas present at the gas leak detection portion to the outside of the fuel gas supply system (31, 32). By not only consuming the fuel gas present at the gas leak detection portion through power generation, but also purging the fuel gas to the outside of the fuel gas supply system, the pressure at the gas leak detection portion can be brought close to a target pressure within a short time period, and the gas leak determination can be performed in a short period of time and with a high level of precision.