An internal combustion engine is provided with oil intake pipes defining oil inlets on both sides of a tunnel type sump. Each oil intake pipe includes a valve which is operable to close the respective flowpath when the respective sump portion is tilted upwardly about the length axis of the engine. The inlets may be arranged to remain submerged in a minimum quantity of oil which is retained in each sump portion while the engine is tilted through its maximum angular range about both length and width axes.

An aircraft engine having an oil circuit and a transmission that can be supplied with oil via the oil circuit. Oil fed to the transmission can be directed out of the transmission into an oil reservoir, from which oil can be introduced directly back into the transmission via a hydraulic line path. According to the invention, the oil fed to the oil reservoir can only be fed to the hydraulic line path below a defined filling level of the oil reservoir. When the defined filling level of the oil reservoir is reached, oil can also be introduced into a further hydraulic line path.

An oil recirculation system includes an engine lubricated by a flow of oil through the engine, a supplemental oil tank arranged to contain a quantity of oil, an oil inlet conduit arranged to fluidly connect the supplemental oil tank and the engine, an oil outlet conduit arranged to fluidly connect the supplemental oil tank and the engine, a first pump operable to pump oil from the supplemental oil tank to the engine through the oil outlet conduit; and a second pump operable to pump oil from the engine to the supplemental oil tank through the oil inlet conduit. wherein the oil inlet conduit is coupled to the supplemental oil tank at a location above where the oil outlet conduit is coupled to the supplemental oil tank.

An apparatus for transporting a turbine engine with a transportation fixture including a turbine engine jig having mounts for securing the turbine engine, a rotor with a drive shaft rotationally supported by a bearing, the method includes supplying a lubricant to the bearing and rotating the drive shaft while the turbine engine is in transport.

An oil container of a combustion engine. Oil collected in the oil container can be, conveyed to the combustion engine and back into the oil container, having a central oil chamber out of which oil can be suctioned and lateral oil chambers positioned either obliquely above or obliquely below the central oil chamber depending on an oblique position of the oil container. Oil is directed to the lateral oil chambers from the combustion engine, and, depending on the oblique position of the oil container, the central oil chamber can be coupled to a first lateral oil chamber that is adjacent to the central oil chamber on a first side of the central oil chamber, or to a second lateral oil chamber that is adjacent to the central oil chamber on a second side of the central oil chamber, via a respective passively controlled check valve.

Transmission arrangement for a motor vehicle, comprising at least one clutch unit and at least one actuator unit that allows the clutch unit to be actuated; the actuator unit additionally allows a pump to be actuated such that lubricant is pumped from a lubricant sump into a lubricant reservoir.

An engine includes a spool including a turbine, a second spool including a second turbine, a fan, and a fan drive gear system. A tower shaft is engaged to the spool. A second tower shaft is engaged to the second spool. A superposition gear system includes a plurality of intermediate gears engaged to the sun gear and supported in a carrier and a ring gear circumscribing the intermediate gears. The tower shaft drives the sun gear. An oil pump is driven by the carrier and supplies oil to the fan drive gear system from an oil tank through a first pickup at a first end of the oil tank and a second pickup at a second, opposite end of the oil tank. A shuttle valve at a suction side of the oil pump selectively allows oil to be supplied by one of the first and second pickup.

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.

Systems and apparatuses include a generator set including an alternator, a transmission coupled to the alternator and structured to receive power from an engine, and an oil heating system including an oil pan structured to provide lubricating oil to the engine and including an oil outlet and an oil inlet, a plurality of immersion heaters positioned at least partially within the oil pan, a return line positioned within the oil pan, coupled to the oil inlet, and including a plurality of apertures for providing oil into the oil pan, each aperture aligned with a corresponding one of the plurality of immersion heaters, and a pump receiving oil from the oil outlet, and providing oil to the oil inlet.

An assembly includes a rotor housing, a first rotor, a lubrication system, a first vibration sensor, and an engine control system. The rotor housing forms a first rotor cavity. The first rotor is configured for rotation within the first rotor cavity. The first rotor includes the plurality of apex seals. The lubrication system is configured to supply a lubrication flow for lubrication of the plurality of apex seals. The first vibration sensor is on the rotor housing. The first vibration sensor is configured to generate a vibration measurement signal. The engine control system includes a processor in communication with a non-transitory memory storing instructions, which instructions when executed by the processor, cause the processor to: identify that the vibration measurement signal exceeds a first vibration threshold, and increase a flow rate of the lubrication flow based on an identification of the vibration measurement signal exceeding the first vibration threshold.