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.

A recreational off-highway vehicle includes a vehicle frame, a plurality of wheels, a drive source, a vehicle body and a pair of headlights. The vehicle frame includes a front frame, a rear frame and an intermediate frame defining an open passenger compartment between the front and rear frames. The wheels support the vehicle frame. At least one of the wheels is a drive wheel. The drive source supported by the vehicle frame. The vehicle body is provided to the vehicle frame. The vehicle body includes a front grille panel that has an air intake area defined by a plurality of intake air openings. The headlights are located primarily at a middle point of the front grille panel with respect to a vertical direction of the recreational off-highway vehicle.

A cylinder head with integrated exhaust manifold includes a cylinder head housing, an exhaust manifold, and first, second and third water jackets. The cylinder head housing has a combustion chamber formed in a bottom surface thereof and an internal receiving space. The exhaust manifold is received in the space of the cylinder head housing and is connected to exhaust ports of the cylinder head housing. The first water jacket is received in the space of the cylinder head housing and disposed adjacent to the combustion chamber. The second water jacket is received in the space of the cylinder head housing and disposed to contact a bottom of the exhaust manifold. The third water jacket is received in the space of the cylinder head housing and disposed to contact a top of the exhaust manifold.

An assembly includes a valve integration unit attached to a transmission oil heater. The valve integration unit includes a valve mechanism and a housing having first to sixth fluid ports for oil input and output. The interior space of the housing has three portions, including a second portion defining a valve chamber and a third portion defining a bypass flow passage between the first and second portions. The valve mechanism has a temperature responsive actuator and first, second and third valve members. The movement of the first and second valve members is actuated by the temperature responsive actuator. The third valve member and the third valve opening are located in the second portion of the interior space. The third valve member is actuatable in response to a pressure differential between the first and second portions of the interior space.

An oil supply system for a vehicle includes a plurality of oil pumps, suction oil passages, and a communication passage. The oil pumps are independently operational. The suction oil passages each connect an associated one of suction portions of the plurality of oil pumps and a common oil strainer. The communication passage connects the suction oil passages.

A lubricant system for supplying lubrication to a component in a turbine engine includes a lubricant reservoir, a supply line fluidly coupling the lubricant reservoir to the component in the turbine engine, a scavenge line fluidly coupling the component to the lubricant reservoir, and a bypass line fluidly coupling the supply line to the scavenge line and bypassing the component.

A system for collecting lube oil in an internal combustion engine with a rotating crankshaft assembly reduces lube oil aeration. The system includes a primary separation chamber arranged above an oil sump; an air interchange zone arranged above the primary separation chamber; an entrance aperture fluidly coupling the air interchange zone to the primary separation chamber; an exit aperture laterally spaced from the entrance aperture and fluidly coupling the primary separation chamber to the air interchange zone and for guiding air arising from the motion of the rotating crankshaft assembly from the primary separation chamber to the air interchange zone; and a main oil accumulation plate extending from the entrance aperture to the exit aperture and separating the primary separation chamber and the air interchange zone. The system further features a primary oil accumulation plate located above the exit aperture, extending towards the main oil accumulation plate at a first angle, and defining an airflow control aperture between the main oil accumulation plate and the primary oil accumulation plate through which fluids from the exit aperture are directed.

An oil temperature control assembly mounts on a vehicle's operating group fluidically connected to an oil circulation system and a cooling system. A heat exchanger has plate-shaped exchanger elements defining reciprocally alternate ducts through which oil and refrigerant fluid flow, and a support and oil control device. The support and oil control device has a plate-shaped base element including the oil inlet and outlet ducts having a first surface in contact and engageable by the heat exchanger and a second opposite surface. The support and oil control device includes a control group having a housing body projecting from the first surface next to the heat exchanger having a housing cavity fluidically connected to the inlet and outlet ducts and an exchanger duct and a valve member in the housing cavity including an obturator element and a control element which moves the obturator element according to oil operating conditions.

This oil pressure control device is provided with: an oil cooler which cools engine oil circulating through a hydraulic circuit of an engine; a bypass oil passage which bypasses the oil cooler; an oil cooler bypass valve by means of which an engine oil flow passage is switched between the oil cooler and the bypass oil passage; an oil pressure sensor which measures a first oil pressure, which is the oil pressure of engine oil; and a valve control unit which controls opening and closing of the oil cooler bypass valve to reduce the magnitude of a difference between the first oil pressure and a second oil pressure, which is a target oil pressure determined on the basis of the rotational speed of the engine and a fuel injection quantity.

A marine engine has a cylinder block comprising first and second banks of cylinders disposed along a longitudinal axis and extending transversely with respect to each other in a V-shape so as to define a valley there between; and a lubricant cooler located in the valley and extending parallel to the longitudinal axis. The lubricant cooler has a lubricant conduit that conveys engine lubricant parallel to the longitudinal axis and then transversely to the longitudinal axis to the cylinder block. The lubricant cooler further has a cooling conduit that conveys cooling fluid alongside the lubricant conduit to thereby cool the lubricant conduit and the engine lubricant therein.