An internal combustion engine includes a centrifuge, a centrifuge pump, and a controller. The centrifuge is configured to separate foreign particles from a lubricant, wherein the centrifuge is so designed that a lubricant volumetric flow directed into the centrifuge produces and/or maintains a rotational movement of the centrifuge. The centrifuge pump is configured to produce and/or increase the lubricant volumetric flow directed into the centrifuge. A controller is configured to provide control of the centrifuge pump according to a setpoint value for a kinematic operating parameter and/or for a setting parameter of the centrifuge pump. The controller is configured to gradually change the setpoint value for control of the centrifuge pump upon shutdown or starting of the centrifuge pump.

An oil filter and an oil cooler of a motorcycle combustion engine are disposed on an outer surface of an engine body side by side in a right-left direction. A first engine lubrication passage extending in the right-left direction is connected to an outflow passage for the oil cooler. A second engine lubrication passage is connected to the first engine lubrication passage, to extend frontward, and is disposed parallel to an inflow passage and an outflow passage for the oil filter. A third engine lubrication passage is connected to the second engine lubrication passage and extends upward from the second engine lubrication passage in front of the first engine lubrication passage.

An oil filter housing system comprising a housing body. The housing body defines an integral coolant supply passage in fluid supplying communication with a coolant pump. The housing body further defines an integral coolant volute in fluid receiving communication with the coolant pump. The housing body defines an oil cooler cavity configured to house an oil cooler, a first integral oil flow passage in fluid supplying communication with the oil cooler, and a second integral oil flow passage in fluid receiving communication with the oil cooler. A third integral oil flow passage is in fluid supplying communication with a turbocharger. An angled oil filter interface is coupled to the housing body and is configured to receive an oil filter, the oil filter in fluid supplying communication with the third integral oil flow passage.

A filtration system includes a filter housing having a cavity and a base, a drain defined in the base, a channel defined in the base and in fluid communication with the drain, and a filter cartridge having a longitudinal axis and being movable between an installed position within the cavity of the filter housing and an uninstalled position outside the cavity of the filter housing. The channel defines an outer diameter. The filter cartridge includes a bottom endplate defining an outer diameter that is greater than the outer diameter of the channel so that, in the installed position, the bottom endplate covers the channel and prevents fluid flow from the cavity to the drain, and a filter media extending axially outwardly from the bottom endplate.

An internal combustion engine includes a blower housing and a filtration system positioned in a path of cooling air from the blower housing. The filtration system includes a filter housing comprising a base that defines a series of radially extending fins extending circumferentially around the base, and a filter cartridge defining a longitudinal axis and being removably arranged within the filter housing. The base includes a drain and a channel formed radially between a first raised surface and a second raised surface, and the drain is in fluid communication with the channel. The filter cartridge includes a bottom endplate in engagement with both the first raised surface and the second raised surface so that fluid flow is inhibited through the channel and to the drain, and a filter media extending axially from the bottom endplate.

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.