Abstract: An off-road vehicle has: a frame including a rollover protection structure; two front wheels operatively connected to the frame; two rear wheels operatively connected to the frame; at least one seat supported by the frame; an internal combustion engine supported by the frame, being disposed rearward of the at least one seat, and being operatively connected at least one of: the two rear wheels, and the two front wheels; an engine air intake system fluidly connected to the engine for supplying air to the engine; and an air intake conduit having a conduit inlet and a conduit outlet, the conduit outlet being fluidly connected to the engine air intake system for supplying air to the engine air intake system, the conduit inlet being disposed at least in part vertically higher than the rollover protection structure.

Abstract: An engine includes a cylinder block with a fixed trunnion and a cylinder head pivotably attached to the trunnion. The engine has a charge piston and power piston operating in cylinders attached to the cylinder head. Cylinder head valving controls an airflow from the trunnion interior into a charge piston volume during a charge piston intake stroke and restricts an opposite airflow during a charge piston compression stroke. Chamber valving allows an airflow into a chamber within the charge piston during a compression stroke and captures the air in the chamber during an intake stroke. At Bottom Dead Center (BDC), passages in the charge piston, power piston, and their cylinders form a flow path between the chamber and power piston volume. A throttle body controls air intake into the trunnion, and an ignition device in the cylinder head ignites fuel and air in the power piston cylinder.

Abstract: A supercooling release device according to one aspect of the present disclosure releases a supercooled state of a heat storage material. The supercooling release device includes a first member and a second member capable of being brought into contact with each other. The first member and the second member each include a metal. While a load is continuously applied to at least one of the first member and the second member to bring at least a portion of a surface of the first member and at least a portion of a surface of the second member into close contact with each other, the supercooled state is maintained. When the supercooled state is to be released, the supercooling release device reduces the above load.

Abstract: A system for collecting lube oil in an internal combustion engine with a rotating cranktrain which reduces lube oil aeration. The system includes a first side wall and a second side wall opposite the first side wall. An oil accumulation ramp extends downwards from the second side wall to the first side wall, and separates the oil sump from the crankcase. An oil entrance aperture is arranged in the ramp near the first side wall for directing oil accumulating on the ramp into the oil sump. A plurality of air return ports extend through the oil accumulation ramp from the oil sump to the crankcase. The shape and aim of the air return ports are tuned to optimize the pressure of air and oil level in the sump.

Abstract: Intake manifolds for an internal combustion engine include a first insert configured as a port cap that has a bottom surface defining a first perimeter recess configured to receive a first sealing member, a second insert configured as a port cap that has a bottom surface defining a second perimeter recess configured to receive a second sealing member, and a main body having a first set of runners extending in a first direction therefrom and a second set of runners extending in an opposite direction therefrom. Both the first set of runners and the second set of runners each terminate at a back end with a flange that defines a socket configured to receive one of the first and second inserts, respectively. The first insert and the second insert are seated in their respective socket, and each are made of a material that is chemically resistant to coolant fluid.

Abstract: A high-pressure fuel pump has an inlet valve and a pressure-limiting valve which fluidically connects a high-pressure region to an inlet valve region located, in terms of geometry, between the inlet valve and an electromagnetic actuator of the high-pressure fuel pump, which acts upon the inlet valve via a tappet.

Abstract: An oiling device includes a passage system that circulates and feeds oil to an oiling object. A control unit includes a storage unit that has stored therein a first abnormality pressure set value that differs according to oiling temperature; the first abnormality pressure set value is set to a lower pressure as the oiling temperature is higher. The control unit executes an abnormal stop of the oiling object when an oiling pressure detected by an oiling pressure detecting unit is equal to or lower than the first abnormality pressure set value corresponding to an oiling temperature detected by an oiling temperature detecting unit.

Abstract: High-pressure fuel pumps and systems incorporating the same are disclosed. The fuel pump includes a housing with at least one fluid feed port, a barrel with at least one fluid receiving port, and a clamp to secure the barrel to the housing. The barrel has a first surface configured to contact a second surface of the housing to form a groove. The groove provides fluid communication between the at least one fluid feed port of the housing and the at least one fluid receiving port of the barrel.

Abstract: An air-fuel mixer includes a body having an inlet, an outlet, and an air passage therebetween. One or more fuel injectors are mounted to the body and positioned to inject fuel into the air passage with little or no space between the injector nozzles and the air passage. The fuel injectors may be inclined in an air-fuel mixer outlet direction whereby they inject fuel into the air passage with momentum in a direction of the outlet. Swirl guides are provided within the air passage. The air-fuel mixer may be installed between an intake manifold and an intercooler. The air-fuel mixer provides good mixing, low resistance to air flow, reduced fuel slip, and crisp responses to throttle up and throttle down commands.

Abstract: The present disclosure provides an air intake system for a power machine that can use a hollow section of a frame of the power machine to form part of an air intake path. The air intake system can include an air inlet coupled to an exterior panel of the power machine, a filter assembly including a filter enclosure and a filter element, a first air conduit coupled between the inlet and an enclosed compartment of a frame of the power machine, and a second air conduit coupled between the enclosed compartment and the filter enclosure. To reach the filter enclosure, the air entering the filter enclosure can travel along an air intake path that includes the air inlet, the first air conduit, the enclosed compartment, and the second air conduit.

Abstract: An off-road vehicle includes a frame, a vehicle cover, a prime mover assembly, an intake manifold, and an electrical control unit. An intake seat for the intake manifold is positioned above one of the rear side plates of the vehicle cover. An air filter for the intake manifold is positioned behind a rear baffle of the vehicle cover, which in turn is positioned behind the seat(s). The rear baffle defines an air filter access port, allowing the filter element in the air filter to be accessed and changed from within the cabin. Covers of the air filter access port and the air filter allow changing of the filter element without requiring any tools.

Abstract: The present disclosure relates to an integrated housing capable of integrally connecting several components of a water supply module, and the water supply module including same. According to the present disclosure, hoses or pipes are removed or a pipe length is reduced through the integration of components constituting a cooling system, and thus a reduction in size and weight can be promoted.

Abstract: An engine includes: an engine block including a cylinder block and a head block, a cool liquid cooler that cools a first cool liquid that cools the engine block, a lubricant oil cooler that cools a lubricant oil using the first cool liquid or a second cool liquid, an exhaust manifold mounted to the engine block, a turbocharger driven by exhaust gas from the exhaust manifold, an exhaust communication pipe that communicates the exhaust manifold with the turbocharger, and a cool liquid flow channel through which a cool liquid discharged from the engine block flows in an order of the exhaust communication pipe and the exhaust manifold. The cool liquid cooler and the lubricant oil cooler are so placed as to be arranged side by side on one end side in a crankshaft direction.

Abstract: A V-type engine, an outboard motor, and a ship capable of restricting exposure of a catalyst to water. The engine includes cylinders where pistons operate are arranged in a V-shape, a crankshaft driven by driving of the pistons is disposed vertically, and exhaust pipes communicating with exhaust openings in the respective banks of a cylinder head and a catalyst holder that holds a catalyst in a merge portion where the exhaust pipes are merged in a site located on an upper side of the banks are included.

Abstract: Systems, methods and apparatus for controlling operation of dual fuel engines are disclosed that regulate the fuelling amounts provided by a first fuel and a second fuel during operation of the engine. The first fuel can be a liquid fuel and the second fuel can be a gaseous fuel. The fuelling amounts are controlled to improve operational outcomes of the duel fuel engine.

Abstract: A cylinder head includes a cylinder head casting having a top deck and a bottom deck, and a coolant cavity. The cylinder head also includes an igniter column including an upper section, and a necked-down lower section extending upwardly from the bottom deck. The igniter column includes an inner surface forming an igniter bore such as for a sparkplug, and an outer heat-dissipation surface. The outer heat-dissipation surface is exposed in circumferential uniformity to the coolant cavity and extends radially inwardly of the inner surface at locations axially between an igniter seat and a bottom deck cavity surface. In some embodiments, a cylinder head includes an enclosed as-cast cooling channel axially between an igniter seat and a bottom deck combustion surface.

Abstract: An off-road vehicle has: a frame including a rollover protection structure (ROPS); four wheels; at least one seat; an internal combustion engine operatively connected at least two of the wheels; a windshield movably connected to the ROPS, the windshield being movable between lowered and raised positions. The windshield defines at least one of: a windshield recess in a top edge of the windshield, and a windshield aperture near the top edge. An air intake conduit has a conduit inlet and a conduit outlet fluidly connected to an engine air intake system. The conduit inlet faces generally forward and is disposed at least in part vertically higher than the windshield in the lowered position. In the raised position of the windshield, air flows through the at least one of the windshield recess and the windshield aperture to be supplied to the conduit inlet of the air intake conduit.

Abstract: A fuel gas valve applicable to natural gas and liquefied petroleum gas including a valve body having a flow channel having a valve opening, an inlet opening, and an outlet opening; a top cover mounted to the valve body and having a mounting hole, a small flame limiting portion, and a large flame limiting portion; a sealing gasket interposed between the valve body and the top cover and having a deformable portion; a regulation device disposed in the mounting hole and including an intermediary member, a pin axle, a spring, a fine adjustment knob, a plug axle unit, and a dual-spring unit; a drive interface including a limiting projection and connected to the intermediary member for driving the regulation device to change a gap between the plug axle unit and the valve opening to regulate the flow rate of fuel gas passing through the valve opening for adjusting a flame.

Abstract: A thermal management system is disclosed configured to regulate the temperature of a number of vehicle components. The system comprises one expansion tank and two or more coolant circuits each configured to regulate the temperature of a vehicle component of the number of vehicle components. Each coolant circuit of the two or more coolant circuits comprises a heat exchanger configured to regulate the temperature of coolant in the coolant circuit, a coolant pump comprising a pump inlet, and a static line fluidly connecting the pump inlet to the expansion tank. The present disclosure further relates to a vehicle comprising a thermal management system.

Abstract: A fluid system includes a housing having a valve bore, a fluid supply conduit, and a valve positioned in the valve bore and defining a valve axis. The valve has a first outer sealing surface, a second outer sealing surface, and an inner surface forming a fluid passage extending between a fluid inlet fluidly connected to the fluid supply conduit, and at least one fluid outlet spaced axially from the first outer sealing surface and the second outer sealing surface. A thermoactuator is coupled to the valve and exposed to a flow of fluid from the fluid supply conduit. The working fluid in the fluid system may include engine oil.