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公开(公告)号：US12110963B2
公开(公告)日：2024-10-08
申请号：US18450050
申请日：2023-08-15
发明人： Leonardo Orlando , Juraj Hrubec
CPC分类号： F16H57/08 , F16C19/38 , F16H1/28 , F16C2240/40 , F16C2240/70 , F16C2240/80 , F16C2240/82 , F16C2240/84 , F16C2361/65 , F16H3/44 , F16H3/66 , F16H3/663 , F16H3/666 , F16H2057/085
摘要： A gearbox assembly includes a plurality of planet gears. At least one planet gear of the plurality of planet gears includes a layshaft. The gearbox assembly includes one or more roller bearings disposed within the layshaft and includes a plurality of rolling elements. The gearbox assembly also includes a bearing radial envelope in a range of 1.2 to 4.325. The gearbox assembly can also include a layshaft axial envelope in a range of 3.8 to 12.5.
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公开(公告)号：US12110962B2
公开(公告)日：2024-10-08
申请号：US18013920
申请日：2022-11-10
发明人： Hongjian Li , Aimin He , Xiaofei Guo , Rongjun Chen
CPC分类号： F16H57/0486 , F16H57/0427 , F16H57/043 , F16H57/045 , F16H57/0471 , F16H57/082 , F16H2057/085
摘要： A transmission mechanism includes a planet carrier, a planet gear, a pin, a sliding bearing, and thrust bearings. The planet gear is rotatably disposed on the planet carrier through the pin. The thrust bearings are disposed between one end of the planet gear and the planet carrier, and between another end of the planet gear and the planet carrier, respectively. A first lubrication gap is formed between each thrust bearing and an end surface the planet gear. The sliding bearing is sleeved on the pin and is disposed between the planet gear and the pin. A second lubrication gap is formed between an inner circumference of the sliding bearing and the pin or between an outer circumference of the sliding bearing and the planet gear. Oil channels are disposed on the pin. Lubricating oil enters the first lubrication gap and the second lubrication gap through the oil channels respectively.
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公开(公告)号：US12084978B2
公开(公告)日：2024-09-10
申请号：US18196048
申请日：2023-05-11
IPC分类号： F16H57/04 , F01D1/02 , F01D5/02 , F01D15/12 , F01D25/16 , F01D25/18 , F02C7/32 , F02C7/36 , F02K3/06 , F16H57/08
CPC分类号： F01D15/12 , F01D1/02 , F01D5/02 , F01D5/027 , F01D25/16 , F01D25/18 , F02C7/32 , F16H57/04 , F02C7/36 , F02K3/06 , F05D2220/32 , F05D2220/36 , F05D2240/70 , F05D2260/34 , F05D2260/40311 , F16H57/0423 , F16H57/0479 , F16H57/0486 , F16H2057/085
摘要： 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, a compressor section having a plurality of compressor hubs with blades driven by the turbine shaft about an engine axis, 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 and a ring gear including first and second portions. The first and second portions have axially opposed faces abutting one another at a radial interface.
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公开(公告)号：US20240280164A1
公开(公告)日：2024-08-22
申请号：US18647737
申请日：2024-04-26
CPC分类号： F16H1/28 , F02C7/36 , F16H57/08 , F05D2260/40311 , F16H2057/02039 , F16H2057/085
摘要： A gearbox assembly includes a plurality of planet gears. At least one planet gear of the plurality of planet gears includes a layshaft that supports a first stage planet gear and a second stage planet gear. The at least one planet gear is characterized by a Radial Stage Distance greater than or equal to 30 millimeters and less than or equal to 100 millimeters. The Radial Stage Distance is Rrm1−Rrt2. Rrm1 is a first stage rim inner radius of the first stage planet gear and Rrt2 is a second stage root radius of the second stage planet gear.
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公开(公告)号：US12031622B2
公开(公告)日：2024-07-09
申请号：US18068332
申请日：2022-12-19
发明人： Stephan Uhkötter , Rens Douma
CPC分类号： F16H57/0479 , F02C7/06 , F02C7/36 , F16H57/043 , F05D2260/40311 , F05D2260/98 , F16H2057/085
摘要： A planetary gearbox for a gas turbine engine has a planet gear rotatably mounted on a carrier element, which is connected in a rotationally fixed manner to a planet carrier. An oil feed pocket is in a region of an external side of the carrier element, via which oil is passed into a bearing gap between the carrier element and the planet gear. The carrier element has a duct carrying oil. The duct in is provided radially within an external side of the carrier element, having a cross section which is closed in relation to the bearing gap. The duct in the flow direction of the oil has at least two sequential duct portions. The flow cross section of the duct in a transition region between an upstream duct portion and a next downstream duct portion decreases in an at least approximately step-shaped manner.
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公开(公告)号：US20240209933A1
公开(公告)日：2024-06-27
申请号：US18517110
申请日：2023-11-22
申请人： CIMA S.p.A.
发明人： Riccardo GILENO
CPC分类号： F16H57/082 , F16H1/32 , F16H57/02 , F16H2057/02073 , F16H2057/085
摘要： A reduction group for a vehicle and a reduction assembly including the reduction group are provided. The reduction group has a ring gear, a central sun gear, a planetary gear holder and at least one planetary gear on the planetary gear holder. The at least one planetary gear has a gear meshed externally with the ring gear and internally with the central sun gear, a planetary gear shaft fixed to the planetary gear holder and a pair of bearings supporting the gear on the planetary gear shaft. The planetary gear shaft and the planetary gear holder are engaged so that the planetary gear shaft is axially adjustable on the planetary gear holder in an operational configuration in which the planetary gear shaft performs an axial tightening action on the pair of bearings exhibiting an axial clearance adapted to allow rotation of the pair of bearings.
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公开(公告)号：US12013014B2
公开(公告)日：2024-06-18
申请号：US17931115
申请日：2022-09-09
发明人： Toshiya Nagumo
CPC分类号： F16H13/08 , F16H57/08 , F16H15/50 , F16H2057/085
摘要： Provided is a friction transmission device including an input raceway ring, a planetary rolling element that is disposed around a rotation axis of the input raceway ring and comes into contact with the input raceway ring; an output raceway ring that comes into contact with the planetary rolling element and is connected to an output shaft, and a first support raceway ring and a second support raceway ring that come into contact with the planetary rolling element. A quadrangle is formed by extension lines of normal vectors at contact points between the planetary rolling element and the respective raceway rings.
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公开(公告)号：US20240151303A1
公开(公告)日：2024-05-09
申请号：US18177988
申请日：2023-03-03
CPC分类号： F16H57/0479 , F16H57/043 , F16H2057/085
摘要： A mechanical reducer for a turbomachine, in particular for an aircraft, this reducer including a sun gear, a ring gear, planet gears which are meshed with the sun gear and the ring gear, hydrodynamic bearings for guiding the planet gears in rotation, these hydrodynamic bearings being carried by a planet carrier and including cylindrical bodies which include an internal oil circulation cavity and first pipelines for conveying oil from this cavity to at least one external cylindrical surface of the body, wherein each of the cylindrical bodies further includes second oil evacuation pipelines, which are different from the first pipelines, and which extend from said at least one external cylindrical surface to at least one of the longitudinal ends of that body.
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公开(公告)号：US11976786B2
公开(公告)日：2024-05-07
申请号：US17642169
申请日：2020-09-16
CPC分类号： F16N27/005 , F01D25/18 , F02C7/06 , F02C7/36 , F16H57/042 , F16H57/0479 , F16N29/02 , F05D2220/32 , F05D2260/98 , F16H57/0469 , F16H57/082 , F16H2057/085
摘要： An oil restrictor for emergency lubrication of a component for an aircraft turbine engine includes a metal cylindrical body having a longitudinal axis and configured to be housed in and shrink-fitted into a cylindrical bore of a part of the turbine engine. The restrictor further includes an integrated oil circuit enabling oil to pass through the restrictor along the axial extent thereof. The body is a one-piece body, and the circuit has at least two oil channels recessed on an outer cylindrical surface of the body and extending around and/or along the axis.
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公开(公告)号：US20240133107A1
公开(公告)日：2024-04-25
申请号：US18242883
申请日：2023-09-05
申请人： LG Electronics Inc.
发明人： Joohang KANG , Youngchan AHN , Junggu LEE
CPC分类号： D06F37/36 , D06F37/262 , F16H3/44 , F16H2003/442 , F16H2057/085
摘要： A drum washing machine includes an inner tub and a drive system coupled to the inner tub. The drive system includes a housing, a motor disposed on one side of the housing, a rotor shaft coupled to the motor and bearing-coupled to the housing, an output shaft bearing-coupled to the housing, and wherein at least part of the output shaft is disposed in the rotor shaft, a planetary gear set that a part of the planetary gear set is spline-coupled to the rotor shaft, and other part of the planetary gear set is spline-coupled to the output shaft, and an actuator moving the planetary gear set in a horizontal direction, wherein, the housing is integrally formed with the inner tub.
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