Abstract: A bearing device for a turbocharger according to one embodiment of the present invention includes: a rotational shaft; a journal bearing device including a compressor-side journal bearing and a turbine-side journal bearing; a bearing housing including a compressor-side bearing supporting portion, a turbine-side bearing supporting portion, and a bearing housing main body; and a lubricant oil guide member extending along a circumference direction of the rotational shaft, at an outer circumference side of at least one of the compressor-side bearing supporting portion and the turbine-side bearing supporting portion.

Abstract: A fire extinguishing system of an aircraft including: a fire extinguishing nozzle that is provided on an installation member forming a compartment of the aircraft; and a fire extinguishing pipe that is provided on a support structure supporting the installation member from a back side, and supplies a fire extinguishing agent to the fire extinguishing nozzle, wherein the fire extinguishing pipe includes a first pipe that is supported by a first support member constituting the support structure, a second pipe that is supported by a second support member constituting the support structure and crossing the first support member, and a tube having flexibility that connects the first pipe and the second pipe.

Abstract: A rotary machine is provided with: a flange section protruding in the radial direction of a rotating shaft which rotates about an axis and rotating together with the rotating shaft; a stationary bush disposed at a distance in the direction of the axis from the flange section, surrounding the outer peripheral surface of the rotating shaft, and provided in a housing supporting the rotating shaft so as to be immovable in the direction of the axis relative to the rotating shaft; and a rotation bush which is disposed between the flange section and the stationary bush so as to be sandwiched there between in the direction of the axis, covers the outer peripheral surface of the rotating shaft, and is rotatable relative to the rotating shaft and the housing while floating in fluid. The rotation bush has, on the surface thereof which faces the direction of the axis, a land surface and a tapered surface which is continuous with the land surface.

Abstract: A turbocharger according to an embodiment of the present invention includes a rotating shaft, a compressor, a turbine, a compressor-side floating bearing and a turbine-side floating bearing that rotatably support the rotating shaft, and a bearing housing that houses the compressor-side floating bearing and the turbine-side floating bearing, the bearing housing being internally provided with a turbine-side oil feeding passage through which oil to be fed to the turbine-side floating bearing flows and a compressor-side oil feeding passage through which oil to be fed to the compressor-side floating bearing flows. A ratio of an oil feeding pressure for oil at an outlet of the compressor-side oil feeding passage to an oil feeding pressure for oil at an outlet of the turbine-side oil feeding passage is configured to be higher than 1.0 and lower than 1.5.

Abstract: A bearing device for a turbocharger according to one embodiment of the present invention includes: a rotational shaft; a journal bearing device including a compressor-side journal bearing and a turbine-side journal bearing; a bearing housing including a compressor-side bearing supporting portion, a turbine-side bearing supporting portion, and a bearing housing main body; and a lubricant oil guide member extending along a circumference direction of the rotational shaft, at an outer circumference side of at least one of the compressor-side bearing supporting portion and the turbine-side bearing supporting portion.

Abstract: An oil-drain device for a thrust bearing includes: a rotor shaft; a collar member mounted to an outer periphery of the rotor shaft; a thrust bearing supporting the rotor shaft in an axial direction; and an oil-drain space forming member defining an oil-drain space through which lubricant oil leaking from a sliding portion of the thrust bearing flows, between the thrust bearing and the oil-drain space forming member. The oil-drain space includes: an oil-drain channel defined between a first end surface of the thrust bearing and a first end surface of the oil-drain space forming member, surrounding the flange portion of the collar member; and an oil-drain port formed below the oil-drain channel, for discharging the lubricant oil flowing through the oil-drain channel outside the oil-drain space.

Abstract: A rotary machine is provided with: a flange section protruding in the radial direction of a rotating shaft which rotates about an axis and rotating together with the rotating shaft; a stationary bush disposed at a distance in the direction of the axis from the flange section, surrounding the outer peripheral surface of the rotating shaft, and provided in a housing supporting the rotating shaft so as to be immovable in the direction of the axis relative to the rotating shaft; and a rotation bush which is disposed between the flange section and the stationary bush so as to be sandwiched there between in the direction of the axis, covers the outer peripheral surface of the rotating shaft, and is rotatable relative to the rotating shaft and the housing while floating in fluid. The rotation bush has, on the surface thereof which faces the direction of the axis, a land surface and a tapered surface which is continuous with the land surface.

Abstract: The apparatus includes a CPU which executes, based on a detection result of a BD sensor, start-up control for controlling driving of a scanner motor, so that a rotation number of the scanner motor reaches a predetermined rotation number, and executes determination control for determining a voltage to be applied to a primary transfer unit based on a detection result of a transfer current detection circuit by a transfer voltage output circuit upon execution of image formation, and when an image forming station K which executes image formation is different from an image forming station Y including the BD sensor, the CPU parallelly executes the start-up control and determination control.

Abstract: A fire extinguishing system of an aircraft including: a fire extinguishing nozzle that is provided on an installation member forming a compartment of the aircraft; and a fire extinguishing pipe that is provided on a support structure supporting the installation member from a back side, and supplies a fire extinguishing agent to the fire extinguishing nozzle, wherein the fire extinguishing pipe includes a first pipe that is supported by a first support member constituting the support structure, a second pipe that is supported by a second support member constituting the support structure and crossing the first support member, and a tube having flexibility that connects the first pipe and the second pipe.

Abstract: An image forming apparatus has an intermediate transfer member onto which an image is transferred, a transfer part transferring the image formed on the intermediate transfer member onto a transfer, a detection part detecting a transfer which is conveyed, a both-surface conveying part reversing the transfer with an image being formed on a first surface, and conveying the transfer to the transfer part again, and a control wherein a timing when forming an image on a second surface of the transfer by the image forming part is set based on a time necessary to reverse the transfer material and a size in a conveying direction of a transfer material.

Abstract: An image forming apparatus, which is configured to form an image on a sheet, includes an image forming unit configured to form an unfixed toner image on the sheet, and a fixing unit configured to fix the unfixed toner image to the sheet by heating the sheet bearing the unfixed toner image while conveying the sheet by a fixing nip portion. The image forming apparatus can perform a cleaning mode for cleaning the fixing unit by conveying a sheet with an unfixed toner image for cleaning formed thereon by the fixing nip portion. At a time of the cleaning mode, the image forming unit forms the unfixed toner image for cleaning on a sheet surface opposite from a sheet surface where the unfixed toner image is formed at a time of image formation.

Abstract: The apparatus includes a CPU which executes, based on a detection result of a BD sensor, start-up control for controlling driving of a scanner motor, so that a rotation number of the scanner motor reaches a predetermined rotation number, and executes determination control for determining a voltage to be applied to a primary transfer unit based on a detection result of a transfer current detection circuit by a transfer voltage output circuit upon execution of image formation, and when an image forming station K which executes image formation is different from an image forming station Y including the BD sensor, the CPU parallelly executes the start-up control and determination control.

Abstract: An image forming apparatus, which is configured to form an image on a sheet, includes an image forming unit configured to form an unfixed toner image on the sheet, and a fixing unit configured to fix the unfixed toner image to the sheet by heating the sheet bearing the unfixed toner image while conveying the sheet by a fixing nip portion. The image forming apparatus can perform a cleaning mode for cleaning the fixing unit by conveying a sheet with an unfixed toner image for cleaning formed thereon by the fixing nip portion. At a time of the cleaning mode, the image forming unit forms the unfixed toner image for cleaning on a sheet surface opposite from a sheet surface where the unfixed toner image is formed at a time of image formation.

Abstract: The image forming apparatus includes an intermediate transfer member onto which an image is transferred, a transfer part transferring the image formed on the intermediate transfer member onto a transfer, a detection part detecting a transfer which is conveyed, and a both-surface conveying part reversing the transfer with an image being formed on a first surface, and conveying the transfer to the transfer part again, wherein a timing when forming an image on a second surface of the transfer by the image forming part is switched based on a size in a conveying direction of a transfer which is designated and a size of the conveyed transfer.

Abstract: An image forming apparatus includes a storage unit configured to store a recording medium, an image forming unit configured to form an image on the recording medium, a paper feed unit configured to supply the recording medium from the storage unit, a conveying unit configured to convey the recording medium supplied by the paper feed unit to the image forming unit, and a control unit configured to control the paper feed unit and the conveying unit in conveying the recording medium. In accordance with a conveyance state in which the recording medium supplied from the storage unit by the paper feed unit is conveyed to the conveying unit, the control unit controls the conveying speed of the next recording medium supplied by the paper feed unit.