Abstract: An engine includes an engine body assembly and an air intake system including an air plenum. The air plenum is positioned above the engine body assembly. The engine includes an air plenum support bracket having an upper arm coupled to the air plenum and a lower arm coupled to the engine body assembly. The engine also includes a vibration isolator coupled to the air plenum support bracket and interposed between the air plenum and the engine body assembly, thereby inhibiting engine vibrations from transferring to the air plenum.

Abstract: A fuel system for a snowmobile having a chassis defining an engine bay and an engine positioned within the engine bay. The fuel system includes a fuel tank that is coupled to the chassis and is positioned aft of the engine. The fuel tank has a forward face that includes a lower contour and an upper contour. A fuel rail is in fluid communication with the fuel tank and the engine. The fuel rail is positioned between the engine and the lower contour of the forward face of the fuel tank.

Abstract: The present disclosure relates to an engine assembly for a vehicle. The engine assembly comprises an engine that includes a cylinder head housing a valve train assembly and a valve cover covering a top of the cylinder head. The engine may be used in different models of the vehicle having different characteristics by configuring the valve train assembly to position camshafts such that either the intake or exhaust ports may be positioned to front or rear side of the cylinder head, while keeping one or more other engine components, such as camshaft positioning, camshaft drive and/or the valve cover the same. In the valve train assembly, finger followers are arranged on the same side of each camshaft and the hydraulic compensators are arranged opposite side of the finger followers. The engine of the present disclosure may also enable alignment and ease of installation and removal of the valve cover.

Abstract: The present disclosure relates to an engine assembly for a vehicle. The engine assembly includes an oil reservoir to receive oil from a crankcase. The oil reservoir is external to the crankcase and positioned rearward of the crankcase. The engine assembly also includes at least one scavenge pump configured to pump the oil from an oil collection pan. The scavenge pump is positioned within the crankcase forward of the crankshaft and includes a suction tube extending rearwardly to a low point in the oil collection pan. The engine assembly further includes a drive mechanism to drive a feed pump and the at least one scavenge pump with the crankshaft. The drive mechanism includes an oil pump shaft to drive the feed pump and includes a gear train coupled to the oil pump shaft to drive the at least one scavenge pump.

Abstract: The present disclosure relates to an engine assembly for a vehicle. The engine assembly comprises an engine including an extended crankshaft with additional main bearings, an alternator or a generator, a drive chain assembly, and a starter motor assembly. The engine may be used in different models of the vehicle having different characteristics, which enables to interchange or replace an internal generator with an external alternator, and vice versa in addition enable to use a common starter motor assembly, crankshaft, crankcase, and drive chain assembly for both engine configuration without modifying a basic design of the engine. Further, placement of the starter motor assembly provides a compact arrangement. In addition, the extended crankshaft with the additional main bearings enables low noise level operation, avoids additional shafts and roller bearings to be attached, and cost effective. Similarly, the drive chain assembly produces less vibration and noise.

Abstract: The present disclosure relates to an engine assembly for a vehicle. The engine assembly comprises an engine including a cylinder head and an engine block. The engine block comprises a cylinder block and a crankcase having a crankshaft. The engine may be used in different models of the vehicle having different characteristics by interchanging or replacing the cylinder head from a plurality of cylinder heads and/or a cylinder block from a plurality of cylinder blocks, while keeping one or more engine components such as the crankcase, a timing chain, or a valve cover the same. Accordingly, the engine is adaptable to different vehicles.

Abstract: The present disclosure relates to a coolant system to cool an engine assembly. The coolant system includes a coolant pump impeller with multiple concentric ribs extending axially on a first side of the coolant pump impeller and multiple vanes extending axially on a second side of the coolant pump impeller. The coolant system also includes a coolant rail to collect coolant from a water jacket that surrounds portions of cylinders and a cylinder head of the engine assembly. The coolant system further includes bleed fittings to remove trapped air as the coolant system circulates coolant through the engine assembly. First and second bleed fittings are provided on opposite corners of the engine assembly such that either the first or the second bleed fitting is at a highest point of the coolant system based on an engine orientation of the engine assembly.

Abstract: The present invention relates to a V-engine (1) having at least one turbocharger (2) and at least two cylinders (4), which is constructed as a diesel engine and as an outboard motor for aquatic vehicles and wherein an exhaust gas system (6) leading from the minimum of two cylinders (4) to the minimum of one turbocharger (2) is arranged in the interior (8) of a V formed by the cylinders (4). A vertically arranged crankshaft (11), cylinder heads (19) which are designed to fold over, and coolant circuits supplied with sea water may also be provided in the V-engine (1).

Abstract: The invention relates to a pump (2) which is constructed to convey coolant in an engine and wherein a tensioning element (4) designed for tensioning a drive member of the engine is integrated. Also integrated in this pump (2) is a closed pump wheel.

Abstract: The present invention relates to a V-engine (1) having at least one turbocharger (2) and at least two cylinders (4), which is constructed as a diesel engine and as an outboard motor for aquatic vehicles and wherein an exhaust gas system (6) leading from the minimum of two cylinders (4) to the minimum of one turbocharger (2) is arranged in the interior (8) of a V formed by the cylinders (4). A vertically arranged crankshaft (11), cylinder heads (19) which are designed to fold over, and coolant circuits supplied with sea water may also be provided in the V-engine (1).

Abstract: Disclosed is a valve arrangement for selectively holding engine oil from leaking into an oil tank vent line. The valve arrangement includes an oil tank and a valve. The oil tank supplies engine oil to the engine lubrication circuit of a vehicle's internal combustion engine. The oil tank includes a vent opening that vents the oil tank. The valve closes the vent opening as a function of the oil pressure in the engine lubrication circuit.