Oil supply system for an internal combustion engine, whereby an internal oil pan is arranged in the internal combustion engine, whereby the oil supply system has an additional external oil reservoir which is arranged outside the internal combustion engine compared to the internal oil pan of the internal combustion engine, whereby a supply line to be connected to the internal combustion engine is provided, which leads to a filling opening of the oil reservoir, and whereby a return line to be connected to the internal combustion engine is provided, through which oil can be returned from the oil reservoir to the internal combustion engine, whereby the return line is connected to the oil reservoir and whereby the oil reservoir has at least one oil tank, whereby a removal opening of the return line is arranged near or in the base of the at least one oil tank.

The present invention encompasses a system and method for automatically replacing vehicle fluid, such as engine oil, with a robotic serving unit or robotic machine. The robotic machine comprises a motorized, autonomously maneuverable unit that has on its top a drainage arm to connect with an oil drain plug of a vehicle. In a preferred embodiment, the oil drain plug comprises a hollow interior for the drainage arm to connect with and drain the oil, and can also comprise a sealable element to retain the oil.

A power unit replaceable fluid container, the power unit being in fluid connection with a fluid distribution system, is disclosed. The container comprises a generally cuboid housing adapted to contain a fluid, the housing having a continuous outer wall, a base portion closing one end of the outer wall and a lid portion situated opposite the base portion and closing a second end of the outer wall to form a container. An indent is provided in the base portion and a fluid inlet and a fluid outlet situated within the indent. The indent in the base portion is sized to receive and accommodate a removable manifold.

A system. The system includes a control module of a fluid system of a machine, a battery, a fluid component and an electrical circuit. The electrical circuit is configured to electrically couple the battery to the control module via the fluid component, and to activate the control module when the machine is powered down.

A gas turbine engine for an aircraft comprises: an engine core comprising a turbine, a compressor, and a core shaft connecting the turbine to the compressor. The gas turbine engine further comprises a core casing surrounding the engine core. The gas turbine engine further comprises a core cowl surrounding the engine core and the core casing. The gas turbine engine further comprises an engine accessory gearbox driven by a take-off from the core shaft. The gas turbine engine further comprises an oil system having one or more oil pumps powered by the engine accessory gearbox for circulating lubricating oil around components of the engine including the engine accessory gearbox, and having an oil tank for receiving and storing oil scavenged from the engine components before recirculation thereto. The gas turbine engine further comprises an oil fill line which extends from the engine accessory gearbox to an inlet port accessible from the core cowl, the oil tank being fillable from the inlet port via the fill line and the engine accessory gearbox.

A gas turbine engine in a shutdown mode comprises one or more rotatable shafts, a first oil sump, a second oil sump, and an oil drainage conduit fluidically connecting the first oil sump and the second oil sump. The one or more rotatable shafts are oriented with an axis of rotation less than 90 degrees from vertical. The first oil sump has a selected critical vertical level. The second oil sump is positioned at an elevation lower than the elevation of the first oil sump. The oil drainage conduit effects oil drainage by gravity from the first oil sump to the second oil sump to prevent the level of oil collected in the first oil sump from exceeding the selected critical vertical level.

Various embodiments of fluid monitoring systems are provided for use in connection with the fluid systems of machines such as engine-powered machines. The fluid monitoring systems may be configured for collecting and processing data associated with fluid refill operations, fluid evacuation operations, fluid purge operations, and other types of fluid operations in connection with different fluid components.

Oil supply system for an internal combustion engine (1), whereby an internal oil pan (2) is arranged in the internal combustion engine (1), whereby the oil supply system has an additional external oil reservoir (3) which is arranged outside the internal combustion engine compared to the internal oil pan (2) of the internal combustion engine (1), whereby a supply line (4) to be connected to the internal combustion engine (1) is provided, which leads to a filling opening (5) of the oil reservoir (3), and whereby a return line (6) to be connected to the internal combustion engine (1) is provided, through which oil (0) can be returned from the oil reservoir (3) to the internal combustion engine (1), whereby the return line (6) is connected to the oil reservoir (3) and whereby the oil reservoir (3) has at least one oil tank (7), whereby a removal opening (8) of the return line (6) is arranged near or in the base of the at least one oil tank (7).

A process for production of cylinder oil comprises providing used oil, providing fresh cylinder oil, and blending the used oil with the fresh cylinder oil. The used oil has a lower TBN value than the fresh cylinder oil. A process for the operation of an internal combustion engine comprises preparing cylinder oil as described and using the cylinder oil in the internal combustion engine. An apparatus for the preparation of a cylinder oil comprises a blending means for blending used oil and fresh cylinder oil. The blending means is in flow communication with at least one compartment of an internal combustion engine that comprises used oil or at least one storage compartment comprising used oil, at least one storage compartment for fresh cylinder oil, and at least one cylinder of an internal combustion engine. Used oil and fresh cylinder oil are used for the preparation of cylinder oil.

A process for production of cylinder oil comprises providing used oil, providing fresh cylinder oil, and blending the used oil with the fresh cylinder oil. The used oil has a lower TBN value than the fresh cylinder oil. A process for the operation of an internal combustion engine comprises preparing cylinder oil as described and using the cylinder oil in the internal combustion engine. An apparatus for the preparation of a cylinder oil comprises a blending means for blending used oil and fresh cylinder oil. The blending means is in flow communication with at least one compartment of an internal combustion engine that comprises used oil or at least one storage compartment comprising used oil, at least one storage compartment for fresh cylinder oil, and at least one cylinder of an internal combustion engine. Used oil and fresh cylinder oil are used for the preparation of cylinder oil.