Patent classifications
F16H57/0427
Planetary gear and gas turbine engine
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.
Lubricating liquid manifold for a crankpin of an epicyclic gear train, gearbox and aircraft
A lubricating liquid manifold for a crankpin of an epicyclic gear train. The epicyclic gear train is lubricated by a lubrication system conveying a first flow of a lubricating liquid towards the manifold and a second flow of the lubricating liquid towards a member to be lubricated. The manifold comprises a hollow body provided with an inlet port intended to receive the first flow and an outlet port designed such that the first flow is conveyed towards a guide device connected to the crankpin. The manifold comprises a barrier comprising a shoulder connected to the body and a deflector protruding radially outwards from the body so as to form, with the shoulder, a diversion space for diverting the second flow and preventing it from penetrating into the manifold.
Gear box with an oil stirring box
Provided is a gear box including a lubricating oil pool arranged at a bottom of the gear box, and at least one oil stirring box that includes an oil storage chamber, the oil storage chamber being provided with an oil scooping port and at least one oil outlet. The at least one oil stirring box is arranged on a rotary component in the gear box and rotatable along with the rotary component. A lubricating oil in the lubricating oil pool is allowed to flow through the oil scooping port into the oil storage chamber when the at least one oil stirring box rotates to the lubricating oil pool. The lubricating oil in the oil storage chamber is further allowed to flow out of the at least one oil outlet to a lubrication point when the oil stirring box rotates to the vicinity of the lubrication point.
Arrangement of a rotor position sensor
An arrangement of at least one sensor track-scanning rotor position sensor (1, 1 A) of an electric machine (EM) in a hybrid transmission housing (2) that includes a torque converter (3) and a housing-affixed oil supply plate arrangement is provided. The rotor position sensor (1, 1 A) is attached on an oil-supply-plate side, and a sensor ring (8), as a sensor track, is attached on a converter side. A hybrid transmission housing (2) including the arrangement is also provided.
TURBOMACHINES AND EPICYCLIC GEAR ASSEMBLIES WITH LUBRICATION CHANNELS
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.
GEARBOX AND GAS TURBINE PROPULSION UNIT
The invention describes a transmission (30) having a rotatably mounted component (34) that is designed with at least two approximately rotationally symmetrical channels (41, 141) into which oil from a respective oil supply (44, 144) fixed to the housing can be introduced proceeding from the respective radially inner region (42, 142) of said channels. In at least one radially outer region (45, 145), the channels (41, 141) each have at least one outlet opening (46, 146) for the oil. Furthermore, the oil can be conveyed from the outlet openings (46, 146) to at least one hydraulic consumer via at least one line region (47, 147) in each case. A gas turbine engine having the transmission (30) is also proposed.
IMPELLER FOR A PLANET CARRIER OF A PLANETARY GEAR SPEED REDUCER OF A TURBOMACHINE
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.
LUBRICATION DEVICE FOR TURBOMACHINE REDUCTION GEAR
Lubrication device for a turbomachine reduction gear, the device comprising an annular lubricating oil collecting cup delimited by a first wall and a second wall, said cup being divided by internal walls extending between the first wall and the second wall so as to define a plurality of angular sectors forming oil collection basins, the basins being circumferentially adjacent around the axis and comprising lubricating oil outlets, characterized in that one or more of said internal walls have openings allowing oil to pass between the circumferentially adjacent basins, characterized in that said openings (58) are formed in one or more of said internal walls so as to define one or more rows of openings in said one or more internal walls.
Gear wheel and a vehicle transmission arrangement
A gear wheel is connectable to a transmission shaft of a vehicle gear transmission arranged in a gearbox housing. The gear wheel being configured to be lubricated by a lubricant in a lubricant reservoir of the gearbox housing, wherein the gear wheel comprises a first axial end surface; a second axial end surface arranged on an opposite side of the gear wheel relative to the first axial end surface; and a plurality of gear teeth arranged circumferentially on the gear wheel and positioned between the first and second axial end surfaces; wherein the first axial end surface comprises a plurality of angularly spaced protrusions extending axially from the first axial end surface in a direction of a surface normal of the first axial end surface.
Lubrication Distribution System
A lubrication distribution system is provided for mechanical systems, including gearboxes, to evenly and precisely apply lubricant to system structures during operation. The system includes a rotating lubrication distribution component that functions both to pump and to precisely direct lubricant. Machined locator elements enable accurate positioning of the rotating lubrication distribution component within the system. A plurality of lateral ports and surface features in the rotating lubrication distribution component receive and distribute lubricant transferred during rotation from one or more lubricant collection components with profiled lubricant transfer elements that enables collection of lubricant from eddies produced by profiles of the lubricant transfer elements during rotation of the rotating lubrication distribution component. Collected lubricant is directed into the rotating lubrication distribution component ports and distributed evenly and precisely to mechanical system or gearbox structures requiring lubrication. An existing gearbox thrust bearing may be modified to receive and precisely distribute lubricant.