Abstract: A hydrogen supplying device includes a liquid hydrogen pump, an evaporator, a pressure chamber configured to be filled with hydrogen gas flowing therein from the evaporator and to supply the filled hydrogen gas to a hydrogen engine, and a pump control unit configured to adjust a discharge flow rate of the liquid hydrogen pump based on both a flow rate of hydrogen to be supplied to the hydrogen engine and an actual pressure in the pressure chamber.

Abstract: A thermostat device ensures a coolant amount from a bypass passage sufficiently and excellent temperature sensitivity to the coolant temperature. The thermo-operating unit is provided with a control valve for controlling an introduced coolant amount from a first flow inlet via a radiator, corresponding to the temperature of the coolant from a second flow inlet via a bypass passage. Within the housing are provided multiple guides, which are formed extending from the second flow inlet side toward a thermo-element, are arranged intermittently around the thermo-element, and support the thermo-element slidably movable in an axial direction and coolant rectifying protrusions arranged spaced apart from the thermo-element between the guides, wherein a detoured passage for the coolant, directed from the second flow inlet side toward an outflow port, is formed by forming gaps between the guides and the coolant rectifying protrusions.

Abstract: Embodiments for balancing a pulser plate are provided. In one embodiment, a pulser plate includes a plurality of teeth, an indexing gap, and a mass modifier. The teeth of the plurality of teeth define a sensed behavior of the pulser plate. The indexing gap separates a first tooth and a second tooth of the plurality of the teeth. The indexing gap is symmetrical about a first axis on a face of the pulser plate. A second axis defines a proximate side of the pulser plate having the indexing gap and a distal side of the pulser plate. The first axis and the second axes are orthogonal to a pulser plate axis and intersect at a center. The mass modifier includes a first mass modifier on the proximate side of the pulser plate to balance the mass of the pulser plate about the center and does not change the sensed behavior.

Abstract: A cover structure of an upper unit in which a power source of an outboard motor is provided, the cover structure includes a main body cover including a pair of divided covers connected to each otter, the pair of the divided covers being configured to be divided into each other in a left-right direction with respect to a traveling direction of a boat, an attachable and detachable cover that is attachable to and detachable from a part of an outer surface of at least one of the pair of divided covers and that includes a light transmitting portion in at least a part of the attachable and detachable cover, the light transmitting portion configured to transmit light, and a light emitter that is provided at a mounting position of the attachable and detachable cover and that includes a light source.

Abstract: The invention relates to an internal combustion engine, comprising an intake path, a crankcase, an exhaust gas path and a crankcase ventilation means, wherein the crankcase ventilation means is open, closed or separate. The internal combustion engine according to the invention comprises an intake path, a crankcase, an exhaust gas path and an open crankcase ventilation means, wherein the open crankcase ventilation means comprises a first line and a second line, wherein the first line is designed to connect the exhaust gas path to the crankcase in order to guide exhaust gas out of the exhaust gas path to the crankcase, and wherein the second line is designed to connect the crankcase to the exhaust gas path in order to discharge exhaust gas and leakage gases located in the crankcase from the crankcase and to feed them to the exhaust gas path.

Abstract: Described is a power system having an engine, a generator, a belt-driven component, a first pulley, a second pulley, a third pulley, and a fourth pulley. The engine outputs a rotational force at a first rotational speed to rotate the first pulley. The generator converts mechanical power driving the generator shaft to electric power. The second pulley is drivingly coupled to the first pulley via a first belt and configured to rotate the generator shaft at a second rotational speed based on the first rotational speed. The fourth pulley coupled to the generator shaft having a first diameter that is greater than a second diameter of the second pulley.

Abstract: Disclosed herein are embodiments of method for detecting degradation of a connecting rod big end bearing within an internal combustion engine including a crankshaft and an exhaust manifold included on a vehicle. A method includes providing an electronic control unit connected with the engine, a first set of sensors for detecting crankshaft acceleration connected located adjacent the crankshaft, a second set of sensors for detecting engine exhaust manifold pressure located adjacent the engine exhaust manifold, and a display component and an auditory component connected with the electronic control unit. The display component and/or the auditory component is activated when the first set of sensors detects diminished crankshaft acceleration during a power stroke compared to prior acceleration of the crankshaft during a power stroke and the second set of sensors detects exhaust manifold pressure that does not vary statistically significantly from expected exhaust manifold pressure.

Abstract: The electronic control unit performs a retarding process of retarding the ignition timing when the fuel pressure decreases, and lowers the peak of the combustion pressure in the cylinder, thereby suppressing the inflow of the combustion gas to the injector. Further, the electronic control unit performs an increasing process of increasing the injection amount of the hydrogen gas together with the retarding process, thereby suppressing the torque decrease of the engine due to the retard of the ignition timing.

Abstract: A method for operating a fuel injection system is provided. The method includes injecting fuel from a first direct fuel injection device arranged in a cylinder liner in a cylinder block into a combustion chamber and injecting fuel from a second direct fuel injection device arranged in a cylinder head into the combustion chamber, the first and second direct fuel injection devices arranged at an obtuse angle with regard to an intersection of central axes of the first and second direct fuel injection devices.

Abstract: A vehicle includes: an internal combustion engine; a rotary electric machine; a connection-disconnection device; a hydraulic pressure supply device; a hydraulic pressure control device; and a control device. The hydraulic pressure supply device includes a mechanical hydraulic pressure supply device and a pressure accumulator. The control device executes fuel cut-off control to stop fuel supply to the internal combustion engine and rotation speed maintaining control to maintain a rotation speed of the internal combustion engine at a predetermined rotation speed by rotationally driving the internal combustion engine by the rotary electric machine or supplying fuel to the internal combustion engine.

Abstract: A rotary engine, has: an outer body defining a rotor cavity; a rotor rotatable within the rotor cavity and in sealing engagement with walls of the outer body and defining at least one chamber of variable volume in the rotor cavity; a pilot subchamber defined by the outer body, the pilot subchamber having an outlet in fluid flow communication with the rotor cavity; and a fuel injector having a tip in communication with the rotor cavity at a location spaced apart from the outlet of the pilot subchamber, the tip of the fuel injector having: a first outlet in fluid communication with the rotor cavity independently of the pilot subchamber; and a second outlet in fluid communication with the rotor cavity through the pilot subchamber.

Abstract: A two-stroke cycle uniflow-scavenged opposed-piston engine is configured to use hydrogen fuel. The opposed-piston engine has at least one cylinder and a pair of pistons disposed for opposed motion in a bore of the cylinder. Hydrogen fuel is injected into the cylinder early in a compression stroke of the opposed-piston engine, and is ignited in a combustion chamber formed between the pistons late in the compression stroke.

Abstract: A fuel-feeding device may include a fuel tank storing fuel therein, a fuel pump configured to feed the fuel in the fuel tank to an engine through a fuel-feeding conduit, an aspirator configured to generate a negative pressure therein using a flow of the fuel flowing through a branched conduit branched from the fuel-feeding conduit, a negative pressure sensor configured to detect the negative pressure generated by the aspirator, and a control device configured to control a revolution speed of the fuel pump. The control device is configured to determine a sign of vapor generation in the fuel stored in the fuel tank based on detection information of the negative pressure sensor.

Abstract: In at least some implementations, a charge forming device includes multiple throttle bores, an inlet chamber in which fuel is received, at least one fuel passage communicating the inlet chamber with the throttle bores, and a valve having an inlet in communication with the inlet chamber, an outlet and a valve head that is movable and allows flow from the inlet chamber through the outlet when the pressure in the inlet chamber is greater than a threshold pressure.

Abstract: An internal combustion engine, including a piston, a cylinder, and an output shaft, wherein the piston is arranged for reciprocating motion within the cylinder, driven by combustion, and the piston is coupled to the output shaft by a coupling such that said reciprocating motion of the piston drives rotation of the output shaft, wherein the coupling includes a connecting rod coupled to the piston, a slider bearing located for reciprocating movement relative to the connecting rod, the coupling further including a crankshaft rotatably mounted within a slider bearing, the engine having a camshaft and a balance shaft wherein the balance shaft is housed in a hollow of the camshaft such that the camshaft and the balance shaft rotate about a common axis.

Abstract: A two-stroke engine (1) is disclosed comprising a cylinder (2), a piston (3) arranged to reciprocate in the cylinder (2), a crankcase (5), a fuel injector (7) configured to inject fuel into the crankcase (5), an air inlet (9) connected to the crankcase (5), and a stratified scavenging intake (11) connected to the cylinder (2). The engine (1) comprises a throttle (13) configured to control the amount of air supplied to the air inlet (9) and to the stratified scavenging intake (11). The present disclosure further relates to handheld power tool (50) comprising an engine (1).

Abstract: A hybrid all-terrain vehicle includes a vehicle frame; a front wheel coupled to a front part of the vehicle frame; a rear wheel coupled to a rear part of the vehicle frame; a drive motor arranged on the vehicle frame; an engine assembly arranged on the vehicle frame and providing electric energy to the drive motor, the engine assembly including a crankshaft, and an axis of the crankshaft being perpendicular to a longitudinal centrosymmetric plane of the hybrid all-terrain vehicle; and a drive shaft extending along a front-rear direction of the vehicle frame and drivingly coupled to the drive motor to transmit a driving force of the drive motor to the front wheel or the rear wheel.

Abstract: A cooling circuit includes vehicle components and a jet manifold. The vehicle components are configured to receive coolant and include a first vehicle component and a second vehicle component. The jet manifold includes a first input, a second input and a nozzle. The first input is configured to receive coolant from the first vehicle component. The second input is configured to receive coolant from the second vehicle component. The nozzle is configured to increase pressure of the coolant received at the first input to generate a jet stream and a low-pressure zone in a cavity of a body of the jet manifold, the low-pressure zone created by the jet stream drawing coolant from the second input.

Abstract: A method of detecting a percentage of ethanol in fuel used by an engine is provided. The method includes obtaining the heater temperature at a first time t1 at which a slope of the heater temperature as a function of time reaches a predetermined threshold value indicative of fuel boiling; obtaining the heater temperature at a subsequent time t2 at which the slope of the heater temperature approaches a value of the slope prior to the time t1 and which is greater than the predetermined threshold value; and determining the percentage of ethanol in the fuel as a function of the first time t1 and a calculated temperature difference ?T between the heater temperature at time t2 and the heater temperature at the first time t1. A fuel delivery system that detects a percentage of ethanol in fuel by the method, and a flexible fuel vehicle including the fuel delivery system, are also provided.

Abstract: The disclosure relates to a cylinder head for covering a combustion chamber of an internal combustion engine. The cylinder head comprises at least one material recess for heat isolation, which is formed in a main body of the cylinder head and is arranged between a fluid-guide channel and a cooling channel. The material recess can be produced e.g. directly during the shaping (e.g. casting or pressing) of the cylinder head and/or thereafter. For example, in the event that exhaust gas is guided through the fluid-guide channel, a significantly lower heat input occurs from the hot exhaust gas into the cooling fluid. In addition, the thermal decoupling via the material recess leads to the hot exhaust gas cooling to a lesser degree in the fluid-guide channel.