Systems, devices, and methods are disclosed that during cylinder deactivation, including skipfire, at low engines speeds and low engine loads maintain adequate oil pressure of valvetrain components or hardware required for CDA and/or skipfire operation.

A marine engine comprises a powerhead having an engine block, a cylinder head and a crankcase containing a crankshaft. Operation of the marine engine causes rotation of the crankshaft. A crankcase cover encloses the crankshaft in the crankcase. A supercharger is on the crankcase cover, the supercharger being configured to provide charge air for combustion in the powerhead. The supercharger comprises a charge air outlet for conveying charge air from the supercharger for combustion in the powerhead, the charge air outlet being oriented so as to discharge the charge air towards the powerhead.

A lubricating device of a power transmitting system having a structural member. The lubricating device includes an oil piping assembly fixed to the structural member at a plurality of positions and having an oil passage through which a lubricant oil flows. The oil piping assembly is a resin piping assembly including a plurality of divisional components which cooperate to define a circumference of the oil passage along a length of the oil passage and which are formed of a resin material. The divisional components have respective interfacial surfaces and are bonded together with interfacial surfaces thereof being held in contact with each other. The divisional components of the resin piping assembly include a base divisional component provided with a plurality of fixing portions, and the resin piping assembly is fixed to the structural member at the plurality of positions through only the fixing portions.

A lubricating device of a power transmitting system having a structural member. The lubricating device includes an oil piping assembly fixed to the structural member at a plurality of positions and having an oil passage through which a lubricant oil flows. The oil piping assembly is a resin piping assembly including a plurality of divisional components which cooperate to define a circumference of the oil passage along a length of the oil passage and which are formed of a resin material. The divisional components have respective interfacial surfaces and are bonded together with interfacial surfaces thereof being held in contact with each other. The divisional components of the resin piping assembly include a base divisional component provided with a plurality of fixing portions, and the resin piping assembly is fixed to the structural member at the plurality of positions through only the fixing portions.

A lubricant manifold includes a lubricant filter head, a pump inlet channel, an inlet transfer channel, and a lubricant cooler. The lubricant filter head is configured to be coupled to a lubricant filter. The pump inlet channel is fluidly coupled to the lubricant filter head and integrally formed with the lubricant filter head. The pump inlet channel is configured to receive a lubricant and provide the lubricant to the lubricant filter head. The inlet transfer channel is fluidly coupled to the lubricant filter head and integrally formed with the lubricant filter head and the pump inlet channel. The inlet transfer channel is configured to receive the lubricant from the pump inlet channel. The lubricant cooler is fluidly coupled to the inlet transfer channel and integrally formed with the lubricant filter head, the pump inlet channel, and the inlet transfer channel.

A lubricant manifold includes a lubricant filter head, a pump inlet channel, an inlet transfer channel, and a lubricant cooler. The lubricant filter head is configured to be coupled to a lubricant filter. The pump inlet channel is fluidly coupled to the lubricant filter head and integrally formed with the lubricant filter head. The pump inlet channel is configured to receive a lubricant and provide the lubricant to the lubricant filter head. The inlet transfer channel is fluidly coupled to the lubricant filter head and integrally formed with the lubricant filter head and the pump inlet channel. The inlet transfer channel is configured to receive the lubricant from the pump inlet channel. The lubricant cooler is fluidly coupled to the inlet transfer channel and integrally formed with the lubricant filter head, the pump inlet channel, and the inlet transfer channel.

A funnel or drain back seal and systems, assemblies, components, kits, and methods thereof can comprise a body defining an opening that extends from a top of the body to a bottom of the body; a head portion that extends outward from the top of the body; and a flap or lip that extends outward from the bottom of the body. The opening can be adapted to pass draining oil from the top of the body to the bottom of the body for supply into an engine block.

A funnel or drain back seal and systems, assemblies, components, kits, and methods thereof can comprise a body defining an opening that extends from a top of the body to a bottom of the body; a head portion that extends outward from the top of the body; and a flap or lip that extends outward from the bottom of the body. The opening can be adapted to pass draining oil from the top of the body to the bottom of the body for supply into an engine block.

The present disclosure relates to a device for lubricating an internal combustion engine having a crankshaft, which is connected to at least one connecting rod. The device has at least one first flow limiter, in particular a restrictor, for reducing a lubricating fluid flow of a lubricating fluid stream passed to the at least one first flow limiter. The device has a plurality of crankshaft bearings for the rotatable support of the crankshaft, wherein the plurality of crankshaft bearings is provided in fluid communication downstream of the at least one first flow limiter. The device has at least one big end bearing for the rotatable support of the at least one connecting rod, wherein the at least one big end bearing is provided in fluid communication downstream of at least one crankshaft bearing of the plurality of crankshaft bearings.

The present disclosure relates to a device for lubricating an internal combustion engine having a crankshaft, which is connected to at least one connecting rod. The device has at least one first flow limiter, in particular a restrictor, for reducing a lubricating fluid flow of a lubricating fluid stream passed to the at least one first flow limiter. The device has a plurality of crankshaft bearings for the rotatable support of the crankshaft, wherein the plurality of crankshaft bearings is provided in fluid communication downstream of the at least one first flow limiter. The device has at least one big end bearing for the rotatable support of the at least one connecting rod, wherein the at least one big end bearing is provided in fluid communication downstream of at least one crankshaft bearing of the plurality of crankshaft bearings.