Abstract: A thermoelectric power generation device including a thermoelectric element having a first side provided to a heating unit and a second side provided to a cooling unit, and a heat transfer pipe arranged in a passage in which a high temperature fluid flows. The heating unit and the heat transfer pipe have internal spaces communicating with each other. The internal space of the heating unit and the internal space of the heat transfer pipe form a circulation path in which a heat medium is circulated. An outlet of the heat transfer pipe from which the heat medium is discharged is provided in a position higher than an inlet of the heat transfer pipe into which the heat medium flows. The heat transfer pipe vaporizes the heat medium flowing in the circulation path by using heat of the high temperature fluid. The heating unit condenses the heat medium vaporized.

Abstract: A GNSS antenna and an inertial measurement unit are placed at a longitudinal center of a unit base mountable onto a work vehicle. A wireless communication unit is placed at the longitudinal one end side of the unit base. A wireless communication antenna of the wireless communication unit is placed in a front part of the unit base, which is located on the front side of a vehicle body when the unit base is mounted on the work vehicle. The GNSS antenna is provided above the inertial measurement unit.

Abstract: A GNSS antenna 26 and an inertial measurement unit 25 are placed at a longitudinal center of a unit base 55 mountable onto a work vehicle. A wireless communication unit 27 is placed at the longitudinal one end side of the unit base 55. A wireless communication antenna 28 of the wireless communication unit 27 is placed in a front part of the unit base 55, which is located on the front side of a vehicle body when the unit base 55 is mounted on the work vehicle. The GNSS antenna 26 is provided above the inertial measurement unit 25.

Abstract: Provided is a fuel injection device for engines, configured using a technique which can extend service life while good responsiveness is maintained. This fuel injection device for engines is provided with: a control rack supported so as to be slidable in an axial direction and configured so that the amount of fuel delivered under pressure by a fuel pumping mechanism can be adjusted by changing the sliding position of the control rack in the axial direction; an actuator which can move forward and backward an operation section; and a link lever which is supported in a rockable manner by a support shaft and which rocks as the operation section of the actuator moves forward and backward, thereby sliding the control rack. The fuel injection device for engines is further provided with an actuator-side connection section for connecting the operation section of the actuator to the link lever. The actuator-side connection section is disposed coaxially with the operation section of the actuator.

Abstract: A reducer includes a fixed housing, a rotation housing, and multi-stage planetary gear mechanisms. The fixed housing contains a motor in the fixed housing. The rotation housing is rotatably supported by the fixed housing via a bearing at an outer surface of a one-end wall of the fixed housing. The multi-stage planetary gear mechanisms are configured to decelerate a rotation of the motor and transmit the rotation that has been decelerated to the rotation housing. The multi-stage planetary gear mechanisms include a final-stage planetary gear mechanism located at a downstream position in a direction in which motive power is transmitted. The final-stage planetary gear mechanism include a planetary gear rotatably supported by a planetary gear shaft that is supported at one end of the planetary gear shaft by the one-end wall of the fixed housing.

Abstract: An engine (21) including a cylinder internal pressure sensor (63), a torque sensor (64), and an engine control device (73). The cylinder internal pressure sensor (63) detects a cylinder internal pressure. The torque sensor (64) detects an engine load. The engine control device (73) receives a detection result of the cylinder internal pressure sensor (63) and a detection result of the torque sensor (64). If the load detected by the torque sensor (64) is zero (no load) and the cylinder internal pressure obtained from the detection result of the cylinder internal pressure sensor (63) is greater than or equal to a threshold, the engine control device (73) determines that an abnormality occurs in detection by the torque sensor (64).

Abstract: Provided is a fuel injection device for engines, configured using a technique which can extend service life while good responsiveness is maintained. This fuel injection device for engines is provided with: a control rack supported so as to be slidable in an axial direction and configured so that the amount of fuel delivered under pressure by a fuel pumping mechanism can be adjusted by changing the sliding position of the control rack in the axial direction; an actuator which can move forward and backward an operation section; and a link lever which is supported in a rockable manner by a support shaft and which rocks as the operation section of the actuator moves forward and backward, thereby sliding the control rack . The fuel injection device for engines is further provided with an actuator-side connection section for connecting the operation section of the actuator to the link lever. The actuator-side connection section is disposed coaxially with the operation section of the actuator.

Abstract: A control device for a hydraulic machine such as a revolving excavator work machine in which a load-sensing pump control system is adopted. The control device prevents variation in pump control characteristics among a plurality of hydraulic machines and also prevents variation in the operating speed of individual drive units in the hydraulic machines. The control device; and it is configured to perform, by using a storage unit and a calculation unit outside the hydraulic machine, a process of causing an engine rotation state and a hydraulic actuator operation state to be specific states and calculating a correction rate for a control output value of an electromagnetic proportional valve for generating a control pressure, based on detection of an error in the flow rate of a hydraulic pump or its substitute numerical value such as the rotational speed and the like of a traveling motor which is easily detectable from outside.

Abstract: An engine device including a common rail configured to store, at a high pressure, a fuel supplied by a fuel feed pump. The common rail includes a pressure reducing valve configured to discharge the fuel in the common rail to a fuel return pipe. The fuel return pipe extends from the pressure reducing valve to a position higher than the pressure reducing valve, and then extends to a position lower than the pressure reducing valve.

Abstract: An engine system including: an engine configured to output shaft power by burning fuel, and a system main portion configured to operate using the shaft power of the engine. The engine system further includes: an operation controlling unit, and a power source unit configured to convert commercial power to operating power and supply the operating power to the operation controlling unit. The power source unit includes: a system main portion-side power source unit configured to supply operating power for controlling the operation of the system main portion, and an engine-side power source unit configured to supply operating power for controlling the operation of the engine. The system main portion-side power source unit and the engine-side power source unit are provided individually and separately from each other.

Abstract: A wireless communication terminal device for operating a work vehicle that autonomously travels including: a device main body having a display that is capable of accepting a touch panel operation; and an emergency-stop remote controller having an emergency stop button that is used to stop autonomous travel of the work vehicle. The device main body and the emergency-stop remote controller perform a wireless communication with the work vehicle via different wireless communication networks having different communication schemes, respectively.

Abstract: A thermoelectric power generation device including a thermoelectric element having a first side provided to a heating unit and a second side provided to a cooling unit, and a heat transfer pipe arranged in a passage in which a high temperature fluid flows. The heating unit and the heat transfer pipe have internal spaces communicating with each other. The internal space of the heating unit and the internal space of the heat transfer pipe form a circulation path in which a heat medium is circulated. An outlet of the heat transfer pipe from which the heat medium is discharged is provided in a position higher than an inlet of the heat transfer pipe into which the heat medium flows. The heat transfer pipe vaporizes the heat medium flowing in the circulation path by using heat of the high temperature fluid. The heating unit condenses the heat medium vaporized.

Abstract: A catalytic reactor including: a first opening located in a side surface of a catalytic reactor; a plurality of catalytic cassettes charged into the catalytic reactor through the first opening toward a side surface opposed to the first opening so that the plurality of catalytic cassettes is arranged adjacent to each other; and a fixing member configured to be urged by a first lid member closing the first opening and to press upper surfaces of the plurality of catalytic cassettes. The fixing member is disposed to extend along a direction from the first opening to the side surface opposed to the first opening.

Abstract: A thermoelectric power generation device that can improve power generation efficiency. The thermoelectric power generation device (1A) includes thermoelectric elements (2) having their first sides provided on heating units (3) and their second sides provided on cooling units (4). The thermoelectric elements (2) are provided on both sides of the heating unit (3). The cooling units (4) are provided on both sides of the heating unit (3) so as to face each other across the thermoelectric elements (2).

Abstract: An engine device having a flywheel housing (7) in which a flywheel that is rotated integrally with a crankshaft (5) is accommodated on one side portion (303) of a cylinder block (6), in which the cylinder block (6) is integrally formed with housing bracket portions (304) each protruding in a direction away from the crankshaft (5) from each of opposite side portions (301) of the cylinder block (6) extending along a crankshaft axial direction (300), the housing bracket portions (304) protruding from end portions of the opposite side portions (301) close to the one side portion (303). A space surrounded by the one side portion (301), the housing bracket portions (304), and the flywheel housing (7) constitutes a gear case (330) for accommodating therein a gear train.

Abstract: A ship handling device capable of executing dynamic positioning control. While the dynamic positioning control is being active, if a distance deviation from a target position exceeds a predetermined value and a first condition that a state where a moving amount of the ship per unit time is not more than a predetermined amount has continued for a predetermined period is satisfied, or if an orientation deviation from a target orientation exceeds a predetermined value and a second condition that a state where a turning amount of the ship per unit time is not more than a predetermined amount has continued for a predetermined period is satisfied, a thrust setting value resulting from the dynamic positioning control at a determination on the first or second condition is stored as a reference value, and the reference value is added to a thrust setting value subsequently resulting from the dynamic positioning control.

Abstract: A terminal device used in a software rewriting system for rewriting a software package of a control device thereof. At a time of storing a software package in a first memory space, the control device sets first read information to a setting memory space. When the updating software package is written in a third memory space, the updating software package is stored in a second memory space, and second read information is set to the setting memory space. At a time of storing the software package in the second memory space, the second read information is set to the setting memory space. When the updating software package is written in the third memory space, the updating software package is stored in the first memory space, and the first read information is set in the setting memory space. The terminal device writes the updating software package in the third memory space.

Abstract: A technology that can extend the life of a fuel injection device of an engine while maintaining its good responsiveness is provided. A fuel injection device 100 for an engine includes: a control rack 55 supported to be slidable in an axial direction and capable of adjusting of a fuel pressure-feed amount of a fuel pressure-feed mechanism unit 51, based on its slide-position relative to the axial direction; an actuator 40 capable of reciprocating its operating unit 41; and a link lever 20 swingably supported by a pivot shaft member 25 and configured to swing in association with reciprocation of the operating unit 41 of the actuator 40 thereby causing the control rack 55 to slide, wherein the fuel injection device includes an actuator-side connecting part 20A connecting an operating unit 41 of the actuator 40 to the link lever 20, and the actuator-side connecting part 20A is positioned on the same axis as the operating unit 41 of the actuator 40.