A device (1) for cooling and lubricating components of a vehicle (2) may include a housing (3), a coolant sump (4), a coolant pump (5) for pumping coolant (6) from the coolant sump (4), a heat exchanger (7) for cooling coolant (6) from the coolant pump (5), and a coolant line system (8) including a coolant reservoir (9) having a single coolant inlet (10) and multiple coolant outlets (11.1, 11.2, 11.3, 11.4, 11.5). The coolant line system (8) fluidically connects the coolant pump (5) to the heat exchanger (7), and the heat exchanger (7) to the single coolant inlet (10) of the coolant reservoir (9). The coolant reservoir (9) receives coolant (6) from the heat exchanger (7) via the single coolant inlet (10) and directs coolant (6) via the multiple coolant outlets (11.1, 11.2, 11.3, 11.4, 11.5) onto components in the housing (3) requiring cooling and lubrication.

A device (1) for cooling and lubricating components of a vehicle (2) includes at least one housing (3), a coolant sump (4), a first coolant pump (5.1) configured for delivering coolant (6) from a first housing section (A) for accommodating a transmission (12) into the coolant sump (4), a second coolant pump (5.2) configured for delivering coolant (6) from the coolant sump (4) into a coolant line system (8), and a heat exchanger (7) configured for cooling the coolant (6) delivered by the second coolant pump (5.2). The coolant line system (8) fluidically connects at least the second coolant pump (5.2) to the heat exchanger (7) and, at least indirectly, fluidically connects the heat exchanger (7) to multiple coolant outlets (11.1, 11.2, 11.3, 11.4, 11.5) for spraying coolant (6) onto components in the housing (3) that require cooling and lubrication.

An example transmission comprising a lubricant feed passageway to receive lubricant; an input shaft having a cavity that defines a shaft collection trough to receive the lubricant from the lubricant feed passageway, the input shaft defining a radial passageway to enable the lubricant to flow from the shaft collection trough to an exterior surface of the input shaft; and a carrier to receive at least a portion of the input shaft, the carrier defining a carrier collection trough and channels formed in the carrier to distribute the lubricant to at least one of rotating components or non-rotating components in the carrier, the carrier collection trough to receive the lubricant from the shaft collection trough via the radial passageway in response to the input shaft rotating.

A gear reduction includes a sun gear that engages a plurality of planet gears mounted on a carrier. The planet gears are engaged with a ring gear. The ring gear is fixed against rotation such that rotation of the sun gear causes rotation of the planet gears to cause rotation of the carrier. There are spray bars positioned circumferentially between adjacent ones of the planet gears. The spray bars have jet openings, such that lubricant can be passed directly onto teeth on the sun gear. One of the side faces has a plurality of windows such that oil can be scavenged. There are side surfaces between plurality of windows that do not have an opening. A gas turbine engine and a spray bar are also disclosed.

A planetary gearbox includes a planet carrier, with a planetary gear rotatably disposed on the planet carrier, and a gear that meshes with the planetary gear, as well as a gas turbine engine having such a planetary gearbox. The planet carrier has an oil supply installation including a supply line for oil to an opening. The oil is directed out of the opening in the direction of the planetary gear and/or the gear. The oil supply installation in relation to a primary rotating direction of the planetary gear and/or the gear in front of the opening includes a shielding region which protrudes from an external side of the oil supply installation and which by way of the external side of the oil supply installation on a side that faces the primary rotating direction of the planetary gear and/or the gear, delimits an oil collection groove.

Example illustrations are directed to a differential, e.g., a disconnecting differential, and associated methods. A disconnecting differential may include two side gears configured to deliver torque from an output gear or differential casing to respective vehicle wheels when the differential is in a connected state. Each of the side gears may be configured to receive the torque from the output gear while permitting a differential speed between the side gears. The disconnecting differential may also include a disconnect device configured to disconnect the output gear from the two side gears such that the differential is in a disconnected state. The disconnecting differential may also include a position sensor configured to determine a rotational position of the output gear.

A gear assembly for use with a turbomachine comprises a sun gear, a plurality of planet gear layshafts that each support a first stage planet gear and a second stage planet gear, and a ring gear. The sun gear is configured to rotate about a longitudinal centerline of the gear assembly, and the plurality of planet gear layshafts comprise an interior passage that receives one or more lubrication supply lines.

A planet-carrier cage is provided for a turbomachine speed reducer having a planetary gear set. The cage contains a central sun gear and an annular row of planet gears arranged around the sun gear axis and engaging both the sun gear and an internal gear that surrounds the cage. A periphery of the cage has axial receiving elements configured to receive axial fingers secured to a cage carrier of the speed reducer. Each receiving element is penetrated by a radial spindle that guides the rotation of a connection means, such as a swivel joint or a bearing, which is supported by the fingers. The spindles include means for projecting lubricating oil into regions in which the planet gears mesh with the internal gear.

An impeller (230) for a planet carrier of a planetary gear speed reducer of a turbomachine, is configured intended to be rotatably secured to the planet carrier and to be rotated about an axis A of the speed reducer. The impeller has an annular shape about the axis and includes lubrication means (43, 45, 238), in particular for lubricating bearings of planet gears of the speed reducer. The lubrication means include an annular cavity (238) situated at the inner periphery of the impeller. The impeller includes an inner peripheral wall (246) closing the cavity (238) in the radial direction, and the impeller includes an annular port (248) that extends around the axis and that opens in the axial direction into the cavity in order to supply it with lubricating oil.

In some examples, an aircraft gearbox comprises a plurality of gears and a hybrid lubrication system to lubricate the plurality of gears. The plurality of gears comprises a first gear and a second gear. The plurality of gears operable to rotate based on torque received from a driveshaft. The hybrid lubrication system comprises a pressurized lubrication system and a non-pressurized lubrication system. The pressurized lubrication system comprises a nozzle to spray a lubricant onto the first gear. The non-pressurized lubrication system comprises a reservoir to catch a portion of the lubricant from the pressurized lubrication system. The second gear is operable to disperse the lubricant across others of the plurality of gears based on the second gear rotating through the portion of the lubricant. The non-pressurized lubrication system further comprises a shroud configured to confine the portion of the lubricant within the non-pressurized lubrication system and to return overspray of the lubricant sprayed onto the first gear and lubricant dispersed by the second gear to the reservoir.