An exchangeable filter element of a liquid filter has a filter medium surrounding circumferentially a virtual axis of the filter element. A discharge closure element is arranged eccentrically at an axial end face of the filter element. The discharge closure element closes off a discharge opening of a discharge channel of the filter housing when the filter element is installed in the filter housing. The discharge channel serves to empty liquid from the filter when the filter element is removed. The discharge closure element has a limited circumferential expansion with respect to the virtual axis. The discharge closure element has a closure surface arranged at an axial end face of the discharge closure element. The closure surface is at least partially axially oriented. The closure surface rests so as to seal axially at a sealing section of the filter housing that surrounds the discharge opening of the filter housing.

A filtration system includes a filter housing and a filter cartridge. The filter housing includes a base and a cover removably coupled to the base. The cover includes a retainer. The filter cartridge has a longitudinal axis and is movable between an installed position within the filter housing and an uninstalled position outside the filter housing. The filter cartridge includes a top endplate including at least one protrusion extending upwardly away from the top endplate. The protrusion includes a tab extending radially outward from the protrusion that is structured to interact with the retainer to removably couple the filter cartridge to the cover. The filter cartridge further includes a bottom endplate and a filter media extending axially between the top endplate and the bottom endplate.

A filtration system includes a filter housing and a filter cartridge. The filter housing includes a base and a cover removably coupled to the base. The cover includes a retainer. The filter cartridge has a longitudinal axis and is movable between an installed position within the filter housing and an uninstalled position outside the filter housing. The filter cartridge includes a top endplate including at least one protrusion extending upwardly away from the top endplate. The protrusion includes a tab extending radially outward from the protrusion that is structured to interact with the retainer to removably couple the filter cartridge to the cover. The filter cartridge further includes a bottom endplate and a filter media extending axially between the top endplate and the bottom endplate.

An oil treatment system for an internal combustion engine in one implementation includes an elongated dipstick tube defining a tube axis and a first flow passageway, a housing arranged on the dipstick tube and defining an internal cavity, an oil treatment apparatus disposed in the internal cavity, and a retainer coupled to the housing. The retainer may have a cylindrical body comprising an elongated first flow protuberance insertably received through the oil treatment apparatus to establish fluid communication between the oil treatment apparatus and the first flow passageway of the dipstick tube. The retainer comprises a cavity through which oil may be added directly to the first flow passageway of the dipstick which may be fluidly coupled to an oil sump of the engine. The oil treatment apparatus may be an oil filter. An oil treatment additive may optionally be added to the housing.

An oil treatment system for an internal combustion engine in one implementation includes an elongated dipstick tube defining a tube axis and a first flow passageway, a housing arranged on the dipstick tube and defining an internal cavity, an oil treatment apparatus disposed in the internal cavity, and a retainer coupled to the housing. The retainer may have a cylindrical body comprising an elongated first flow protuberance insertably received through the oil treatment apparatus to establish fluid communication between the oil treatment apparatus and the first flow passageway of the dipstick tube. The retainer comprises a cavity through which oil may be added directly to the first flow passageway of the dipstick which may be fluidly coupled to an oil sump of the engine. The oil treatment apparatus may be an oil filter. An oil treatment additive may optionally be added to the housing.

An agricultural machine, comprising is disclosed, wherein the machine comprises a body frame; a cutting system mounted on the body frame; a drive system mounted on the body frame; a power unit, mounted on the body frame, adapted to provide power to the drive system and/or the cutting system; and a fluid distribution system adapted to provide fluid to the power unit. The fluid distribution system further comprises a dock and a replaceable fluid container adapted to contain fluid to be supplied to the power unit the dock being adapted to retain the replaceable fluid container in fluid communication with the fluid distribution system so as to supply fluid from the replaceable fluid container via the fluid distribution system to the power unit. A method of facilitating an oil change in an agricultural machine is also disclosed.

An agricultural machine, comprising is disclosed, wherein the machine comprises a body frame; a cutting system mounted on the body frame; a drive system mounted on the body frame; a power unit, mounted on the body frame, adapted to provide power to the drive system and/or the cutting system; and a fluid distribution system adapted to provide fluid to the power unit. The fluid distribution system further comprises a dock and a replaceable fluid container adapted to contain fluid to be supplied to the power unit the dock being adapted to retain the replaceable fluid container in fluid communication with the fluid distribution system so as to supply fluid from the replaceable fluid container via the fluid distribution system to the power unit. A method of facilitating an oil change in an agricultural machine is also disclosed.

A disposable oil filter containment sheath is provided for use during oil changes for combustion engines. The sheath has a closed bottom, a cylindrical sidewall, and an open top. The resilient sheath is rolled to an initial collapsed position for placement on the bottom of an oil filter mounted on the engine, and it is partially unrolled along the filter. The filter can then be loosened to allow oil to drain into the sheath for capturing a reservoir. After the filter is removed from the engine, the sheath is completely unrolled and tied at the top so as to fully enclose and contain the oil filter and oil. The sheath and its contents are then ready for disposal.

A disposable oil filter containment sheath is provided for use during oil changes for combustion engines. The sheath has a closed bottom, a cylindrical sidewall, and an open top. The resilient sheath is rolled to an initial collapsed position for placement on the bottom of an oil filter mounted on the engine, and it is partially unrolled along the filter. The filter can then be loosened to allow oil to drain into the sheath for capturing a reservoir. After the filter is removed from the engine, the sheath is completely unrolled and tied at the top so as to fully enclose and contain the oil filter and oil. The sheath and its contents are then ready for disposal.

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.