Provided is a toroidal continuously variable transmission that can achieve suitable oil feed both for lubrication at contact interfaces between a power roller and discs and for cooling of the power roller; and a drive mechanism-integrated electricity generation apparatus for an aircraft, the electricity generation apparatus including the toroidal continuously variable transmission. The toroidal continuously variable transmission includes at least one lubrication outlet that discharges an oil toward at least one contact interface between an input or output disc and the power roller; and at least one cooling outlet that discharges the oil toward the power roller. The cooling outlet and the lubrication outlet are arranged such that a distance between the cooling outlet and a point at which the oil discharged from the cooling outlet contacts the power roller is smaller than a distance between the lubrication outlet and the contact interface.

The present invention relates to a mechanical reducer (6) for a turbomachine, in particular an aircraft, this reducer (6) including: a sun gear extending around an axis (61) of rotation, a crown which extends around the sun gear and which is configured to be fixed in rotation around said axis (61), planet gears which are meshed with the sun gear and the crown and which are held by a planet carrier (62) which is configured to be movable in rotation about said axis (61), In addition, the oil distributor (65) comprises a plurality of oil distribution modules (67) assembled together, each module (67) comprising at least one lubrication pipe (68) having an inlet intended to receive oil and an outlet (69) adapted to lead the oil into an opening (63) of the planet carrier (62), the opening (63) being intended for lubricating the reducer.

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.

A gas turbine engine according to an example of the present disclosure includes, among other things, a propulsor section including a propulsor supported on a propulsor shaft, a turbine section including a turbine shaft, and an epicyclic gear train interconnecting the propulsor shaft and the turbine shaft. The epicyclic gear train includes a sun gear coupled to the turbine shaft, intermediary gears arranged circumferentially about and meshing with the sun gear, a carrier supporting the intermediary gears, and a ring gear including first and second portions each having an inner periphery with teeth intermeshing with the intermediate gears. The first and second portions have axially opposed faces abutting one another at a radial interface and respective flanges extending along the radial interface radially outward from the teeth. The first and second portions define a trough axially between and separating the teeth of the first portion from the teeth of the second portion. The first and second portions include facing recesses that form an internal annular cavity along the radial interface.

A vehicle stalactite passive lubrication system includes a drive unit having an electric motor and a gear. A sump has a sump extension. A lubricant is collected in the sump for gravity flow into the sump extension. A stalactite member is fixed to the drive unit and is positioned above an element to be filled with a fluid, lubricated or cooled. The stalactite member is directed downwardly toward the sump with the lubricant splashed by gear rotation collected on neighboring walls and the stalactite member and directed downwardly by gravity into the sump or target element. The stalactite member includes: a drip edge oriented at an angle to a horizontal plane; and a tip defining an end of the drip edge. The angle is selected to direct the lubricant to discharge off the stalactite member at the tip as a lubricant stream into the sump or target element.

The invention relates to a planetary gear box having at least one seal system, which has at least one rectangular-section sealing ring, which is arranged in a groove device, wherein the at least one rectangular-section sealing ring rests at least partially against a groove flank of the groove device, and the groove flank has profiling between the groove flank and the rectangular-section sealing ring for the purpose of distributing fluid, in particular oil, applied to the seal system, wherein the at least one seal system is part of an oil supply of a planet carrier and the seal system has at least two rectangular-section sealing rings, which are spaced apart axially from one another and are arranged radially between a drive shaft of the planetary gear box and the planet carrier. The invention also relates to a gas turbine engine.

A bypass apparatus for lubricant in an unregulated pressurized gearbox including: a block including a lubricant inlet in fluid communication with a pressure relief valve, wherein the pressure relief valve diverts lubricant into the gearbox or into an oil filter, wherein lubricant is returned to the gearbox when the lubricant is cold and/or pressure at the pressure relief valve is high to reduce damage to the gearbox caused by high pressure during a cold start, and when the lubricant temperature increases and the pressure is reduced the pressure relief valve closes and lubricant enters the oil filter.

A strain wave gear system (10) includes first and second sets of ball bearings (80, 82) located intermediate a flange (84) and a retainer plate (88) rotatable with an output (54) and a radially oriented flat disc (74) of the input including strain relief (76). Strain relief (76) is a helical slot in a coupling (70) located radially within the wave generator (94) and the ring gear (22). The ring gear (22) is sealed by a sealing system including sealant (42) forced by a protrusion (34) of the cap (24) entering into a cavity (36) through a channel (40) into a relief volume (38) of the housing (12). The bearing (48) rotatably mounting the housing (12) to the output (54) is lubricated by a lubricating system including plungers (110) threadably received in axial bores (102) intersecting with radial bores (104) in communication with radial holes (47) of the bearing (48).

A vehicle axle housing having a lower bowl portion with a bottom portion connected to a bottom portion of an axle half shaft housing at a first connection portion. A second connection portion connects a first wall of the lower bowl to a first wall of the axle half shaft housing and a third connection portion connects a second wall of the lower bowl to a second wall of the axle half shaft housing. Disposed in the second and third connection portions is one or more first and second attachment holes. A lubrication fluid baffle including a first end portion having a first bent portion, a middle portion having a second bent portion and a second end portion having a third bent portion. Extending from each side of the second bent portion is a first tab and a second tab that are disposed within the first and second attachment holes.

A device for providing a transmission with a lubricant or for oil-cooling a piston in the engine of a motor vehicle, comprising a lubricant- or oil-distribution pipe having at least one injection pipe branching off therefrom for delivering the lubricant or the oil to the respective components of the transmission or the engine, and a method for producing same.