Abstract: An engine device including an exhaust manifold provided on an exhaust side surface of a cylinder head, and an exhaust pressure sensor configured to detect an exhaust gas pressure in the exhaust manifold. The exhaust pressure sensor is attached to the cylinder head. The exhaust pressure sensor is connected to the exhaust manifold through an exhaust pressure bypass path provided in the cylinder head and an exhaust pressure detection pipe connecting the exhaust pressure bypass path to the exhaust manifold. A cooling water passage is provided nearby the exhaust pressure bypass path, in the cylinder head.

Abstract: A heat pump includes a control device configured to control conduction and shutting-off of electric power to a first compressor heater, and to control whether or not an alarm unit notifies an alarm. The control device causes the alarm unit to notify the alarm when the control device determines that duration of electric conduction to the first compressor heater is a predetermined period or longer. With this, it is possible to provide a heat pump that can control electric conduction to the heater to enable saving of electricity, and that can detect a problem in the controlling of the electric conduction to the heater.

Abstract: A gas-side stop valve on the gas refrigerant side and a liquid-side stop valve on the liquid refrigerant side are provided in a package of an outdoor unit. A gas-side filter on the gas refrigerant side is mounted on the indoor unit side relative to the gas-side stop valve and inside the package of the outdoor unit. A liquid-side filter 9 on the liquid refrigerant side is mounted on the indoor unit side relative to the liquid-side stop valve and inside the package of the outdoor unit. As a result, it is not necessary to ensure a place for mounting the gas-side filter and the liquid-side filter at the time of installation on site and the workability can be improved.

Abstract: A tractor in which a basic shape of a hot-wind blocking plate disposed between a motor unit and an operation unit is commonalized as a sharable element, and cutting of an outer edge portion of the hot-wind blocking plate enables application to various specifications including different sizes of motors and operation units, thus achieving convenience in assembling the tractor, enabling mass production by using the sharable element, enabling an efficient inventory storage, and providing an advantage in costs. The tractor includes: a hot-wind blocking plate disposed between a motor unit and an operation unit, the dimension of the hot-wind blocking plate being adjustable by cutting an outer edge portion of the blocking plate; and an operation unit component mounted in the outer edge portion of the hot-wind blocking plate, a position where the operation unit component is mounted is changeable depending on a specification of the operation unit.

Abstract: An exhaust gas purification device for a ship including: a main path communicated with outside and a bypass path branching off from a midway portion of the main path, each of the paths serving as an exhaust gas path of an engine to be mounted in the ship. A partition plate, by which the main and bypass paths are partitioned from the upstream side to the downstream side in an exhaust gas traveling direction, extends along the exhaust gas traveling direction. The partition plate has a downstream end extended through between an exhaust gas outflow port of the purification casing and an exhaust gas outlet of the main path, and the downstream end is formed with an opening to serve as a reverse-flow prevention plate.

Abstract: An engine device including an exhaust manifold provided on an exhaust side surface which is a first side surface of a cylinder head and a two-stage turbocharger that is driven by exhaust gas discharged from the exhaust manifold. The two-stage turbocharger includes a high-pressure turbocharger coupled to the exhaust manifold and a low-pressure turbocharger coupled to the high-pressure turbocharger. The high-pressure turbocharger is arranged on a side of the exhaust manifold. The low-pressure turbocharger is arranged above the exhaust manifold. An exhaust gas outlet of the high-pressure turbocharger and an exhaust gas inlet of the low-pressure turbocharger are coupled with each other through a flexible high-pressure exhaust gas pipe.

Abstract: An engine device including, a cylinder block having one side portion to which a flywheel that is rotated integrally with a crankshaft is disposed. The engine device is provided with a starter that transmits a rotational force to the flywheel at a time of engine start. A flywheel housing, which accommodates the flywheel and includes a starter attachment pedestal for attaching the starter, is attached to the one side portion of the cylinder block. The starter is disposed inner side of the engine than a portion of the flywheel housing , the portion being located outermost in the engine with respect to a direction that is perpendicular to a direction along a crankshaft center and that is parallel to the cylinder head joining surface of the cylinder block.

Abstract: A gas concentration measuring device including a light emitter and a light receiver which are disposed so as to be opposed to each other with a hollow tube-like measurement pipe interposed therebetween. The device is configured to measure concentration of target gas passing through the measurement pipe using light applied from the light emitter, transmitted through the inside of the measurement pipe, and received by the light receiver. Purge gas guide pipes through which purge gas is introduced into optical systems of the light emitter and the light receiver are connected to a side wall of the measurement pipe. The measurement pipe includes a gas entrance portion having a tapered shape widening from a gas supply port toward a downstream side thereof.

Abstract: A ship including: an out-drive unit that exerts a propulsion force on a ship hull by power from an engine; a detection device for detecting a current position, a bow direction, and a moving speed of the ship hull; a shift lever that changes magnitude and direction of an output from the out-drive unit; a lever sensor that detects a manipulation position of the shift lever; and a ship steering control device that is connected to the out-drive unit, the detection device, and the lever sensor. The ship steering control device acquires the operating status of the out-drive unit and the detection results obtained by the detection device and the lever sensor and controls the out-drive unit based on the detection results. The ship steering control device performs a dynamic positioning control when the shift lever is in the positioning position.

Abstract: A thermoelectric power generation device including: a heating unit having a heat medium passage in which a heat medium flows; a cooling unit having a cooling liquid passage in which a cooling liquid flows; a thermoelectric element having the heating unit and the cooling unit so as to generate power by utilizing a temperature difference between a condensation temperature of the heat medium and a temperature of the cooling liquid; a power generation output detection unit configured to detect a power generation output of the thermoelectric element; a heat medium pressure detection unit configured to detect a pressure of the heat medium; a storage unit for storing, in advance, a relationship between a power generation output of the thermoelectric element and the pressure of the heat medium; and an abnormality detection unit configured to detect an abnormality taking place in the thermoelectric power generation device.

Abstract: A work vehicle allows an operator to easily check the vertical position and the angle of bucket. The work vehicle includes a front loader with a bucket, and freely raises/lowers and rotates the bucket. The work vehicle comprises a display disposed near an operator seat. The display is configured to display vertical position information and angle information of the bucket.

Abstract: A subcooler is made up of a plate type heat exchanger. The accumulator is located between a compressor and the subcooler in a width direction of an outdoor unit in a planar view. The subcooler overlaps with the accumulator in the width direction in the planar view. As a result, a compact heat pump can be provided when the subcooler is a plate type heat exchanger.

Abstract: The purpose of the present invention is to provide a rotation speed detection device which achieves improved detection accuracy regardless of a compressor and the operating state of the compressor, and enables the prevention of the breakage of a detection unit. A rotation speed detection device for a compressor, wherein a detection unit for detecting full blades and splitter blades that are blades approaching a compressor casing of the compressor in response to a change in the inductance of a magnetic field is provided. The detection unit is provided in an overlap region in which the full blades and the splitter blades that are all blades can be detected and the exposure pressure is in the range of a gauge pressure of one atmosphere or less.

Abstract: An engine device including an exhaust gas purification device above a cylinder head through a support pedestal. The support pedestal has a flat portion on which the exhaust gas purification device is mounted, and a plurality of legs which protrude downward from the flat portion and are fixed to the cylinder head. The flat portion and the leg portions are formed integrally. Portions between the legs are each formed in an arch-shape.

Abstract: A multicopter having a plurality of propellers is configured to be electrically operated. The multicopter is provided with electric motors, at least one main battery, a generator, an engine, and a battery condition detecting section. The electric motors drive the propellers. The main battery is a first electric power source that supplies the electric power to the electric motors. The generator is a second electric power source that supplies the electric power to the electric motors. The engine drives the generator. The battery condition detecting section detects abnormality of the main battery. When the battery condition detecting section detects the abnormality of the main battery, the generator supplies the electric power that has been converted from motive power from the engine directly to the electric motors.

Abstract: A work vehicle equipped with: a straight-traveling system transmission path including a first stepless transmission device, a turning system transmission path including a second stepless transmission device, left and right traveling units that receive a driving force from an engine and move the work vehicle in forward and in reverse, and a brake operation tool that actuates a brake mechanism. The output of the straight-traveling system transmission path and the output of the turning system transmission path are combined to drive the traveling units. When the operation amount to the brake operation tool exceeds a first predetermined amount, a control section blocks the driving force output from the first stepless transmission device, and at the same time, sets a swash plate of the second stepless transmission device in a neutral state.

Abstract: An engine device including an engine and a carburetor that vaporizes a liquefied fuel gas from a fuel gas source for storing a liquefied fuel gas, in which a part of coolant in the engine is distributed to the carburetor. The engine device further includes a water-cooled exhaust manifold having a coolant passage for cooling an exhaust gas passage and a path switching mechanism for connecting a coolant inlet of the carburetor to a carburetor coolant outlet of the engine or to a coolant outlet of the water-cooled exhaust manifold.

Abstract: A diagnosis device for a multi-cylinder internal combustion engine having an exhaust turbocharger, the device configured to diagnose a fuel combustion state in each one of cylinders in the internal combustion engine. The diagnosis device includes: a rotational speed detector configured to output a signal corresponding to a rotational speed of the exhaust turbocharger or a signal correlated to fluctuation in the rotational speed of the exhaust turbocharger, and a fuel combustion state diagnosis unit configured to diagnose unevenness in the fuel combustion states of the cylinders through a frequency analysis involving a fast Fourier transformation of a frequency characteristic of a signal output from the rotational speed detector.

Abstract: A tractor including an engine hood, engine frames, a lock unit, an operation wire, and a cover member. The lock unit deters the engine hood from being opened. The operation wire is coupled to the lock unit, and is configured to allow unlocking of the lock unit through a release operation of its operable part. The operable part is arranged outward of the engine frames relative to a right-left direction and exposed to the exterior. The cover member covers the operation wire so as to disable manual operation of the operation wire, while allowing operation of the operation wire at least by using a predetermined release tool, the cover member having an opening portion shaped along a movement locus of the operable part of the operation wire.

Abstract: A hydraulic machine, such as a revolving excavator work machine, including a travel-purpose hydraulic motor whose capacity is switchable, in which a work accuracy is obtained by avoiding that a hydraulic motor mainly used for work travel in a large-capacity setting state is affected by an increased traveling speed resulting from a small-capacity setting state of a hydraulic motor. A control device for the hydraulic machine, in driving each of a plurality of hydraulic actuators, corrects a target value for a ratio of a supply flow rate to a required flow rate for each hydraulic actuator in accordance with a change in the engine rotation number and further corrects the target value for the ratio of the supply flow rate to the required flow rate for each hydraulic actuator in accordance with switching of the capacity of the travel-purpose hydraulic motor included in the plurality of hydraulic actuators.