JPH09317833A - Planetary gear - Google Patents
Planetary gearInfo
- Publication number
- JPH09317833A JPH09317833A JP13460096A JP13460096A JPH09317833A JP H09317833 A JPH09317833 A JP H09317833A JP 13460096 A JP13460096 A JP 13460096A JP 13460096 A JP13460096 A JP 13460096A JP H09317833 A JPH09317833 A JP H09317833A
- Authority
- JP
- Japan
- Prior art keywords
- gear
- internal gear
- planetary
- internal
- planetary gear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000033001 locomotion Effects 0.000 description 6
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 235000000621 Bidens tripartita Nutrition 0.000 description 1
- 240000004082 Bidens tripartita Species 0.000 description 1
- 208000006637 fused teeth Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/2809—Toothed gearings for conveying rotary motion with gears having orbital motion with means for equalising the distribution of load on the planet gears
- F16H1/2818—Toothed gearings for conveying rotary motion with gears having orbital motion with means for equalising the distribution of load on the planet gears by allowing limited movement of the ring gear relative to the casing or shaft
Landscapes
- Retarders (AREA)
Abstract
(57)【要約】
【課題】 内歯歯車を半径方向に撓むことができるよう
にして、遊星歯車を弾性支持できるようにし、各遊星歯
車に均等にトルクを配分する。
【解決手段】 中心に設けられた太陽歯車１と、この太
陽歯車１の外周と噛合する複数の遊星歯車２と、この複
数の遊星歯車２と内歯車で噛合する内歯歯車３と、この
内歯歯車３を円周方向に固定し半径方向に弾性支持する
内歯歯車支持部７とを備え、内歯歯車３の半径方向の剛
性は複数の遊星歯車２の外周に沿って撓むようになって
いる。
(57) Abstract: An internal gear can be bent in a radial direction to elastically support a planetary gear, and torque is evenly distributed to each planetary gear. SOLUTION: A sun gear 1 provided at the center, a plurality of planetary gears 2 meshing with the outer periphery of the sun gear 1, an internal gear 3 meshing with the plurality of planetary gears 2 by an internal gear, and The toothed gear 3 is provided with an inner toothed gear support portion 7 that fixes the toothed gear 3 in the circumferential direction and elastically supports the toothed gear 3 in a radial direction. There is.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、各遊星歯車へのト
ルクの配分を均一になるようにした遊星歯車装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a planetary gear device in which torque is evenly distributed to each planetary gear.
【０００２】[0002]
【従来の技術】ターボプロップエンジンやギアードファ
ンエンジンなどにおいて、エンジンの回転数を大幅に減
少してプロペラまたはファンに動力を伝達するため、遊
星歯車装置が減速機として用いられている。遊星歯車装
置は複数の遊星歯車を介して動力を伝達するが、各遊星
歯車に太陽歯車からの伝達トルクが均等に配分される
と、遊星歯車装置の小型化、軽量化に有効である。この
ため従来、伝達トルクを均等に配分する装置が提案され
ている。2. Description of the Related Art In a turboprop engine, a geared fan engine, etc., a planetary gear device is used as a speed reducer in order to significantly reduce the engine speed and transmit power to a propeller or a fan. The planetary gear device transmits power via a plurality of planetary gears, but if the transmission torque from the sun gear is evenly distributed to each planetary gear, it is effective for downsizing and weight reduction of the planetary gear device. For this reason, conventionally, a device that evenly distributes the transmission torque has been proposed.
【０００３】図５は内歯歯車をスプライン・カップリン
グにより支持する遊星歯車装置を示す。中心の太陽歯車
１の回りには通常３個以上の遊星歯車２が配置され、こ
の遊星歯車２を囲んでリング状の内歯歯車３が噛み合う
ように配置される。内歯歯車３の外周にはリング状の支
持装置４を設け、内歯歯車３をスプライン・カップリン
グ５により円周方向の移動を拘束する。内歯歯車３の半
径方向の移動はスプライン・カップリング５の間隙の範
囲内で行われる。内歯歯車３の半径方向の移動により各
遊星歯車２に均等にトルクが配分されるようになる。FIG. 5 shows a planetary gear device in which an internal gear is supported by a spline coupling. Usually, three or more planetary gears 2 are arranged around the central sun gear 1, and a ring-shaped internal gear 3 is arranged so as to surround the planetary gears 2 and mesh with each other. A ring-shaped support device 4 is provided on the outer periphery of the internal gear 3, and the internal gear 3 is restrained from moving in the circumferential direction by a spline coupling 5. The radial movement of the internal gear 3 is carried out within the gap of the spline coupling 5. Due to the radial movement of the internal gear 3, torque is evenly distributed to each planetary gear 2.
【０００４】図６は内歯歯車を弾性支持する遊星歯車装
置を示す。本装置は内歯歯車３の外周にリング状の支持
装置４を設け、内歯歯車３を半径方向には弾性支持し、
円周方向の移動は拘束する。弾性支持方法として弾性リ
ングやスリーブバネパケットが用いられる。内歯歯車３
の半径方向の移動により各遊星歯車２に均等にトルクが
配分されるよう自動調整される。FIG. 6 shows a planetary gear device that elastically supports an internal gear. This device is provided with a ring-shaped support device 4 on the outer periphery of the internal gear 3, and elastically supports the internal gear 3 in the radial direction.
Movement in the circumferential direction is restricted. An elastic ring or a sleeve spring packet is used as the elastic support method. Internal gear 3
Is automatically adjusted so that the torque is evenly distributed to each planetary gear 2 by the movement in the radial direction.
【０００５】[0005]
【発明が解決しようとする課題】図５に示したスプライ
ン・カップリングにより支持する遊星歯車装置の場合、
スプライン歯面のフレッティング摩耗不具合が発生しや
すい。また、図６に示した内歯歯車３を弾性支持する遊
星歯車装置の場合、遊星歯車２が４個以上になると各遊
星歯車２にトルクを均等に配分するように内歯歯車３の
位置を調整する機能が低下する。これは図５の装置の場
合も同様である。また、図６の装置の場合構造が複雑と
なり、減速機として重くなる。In the case of the planetary gear device supported by the spline coupling shown in FIG. 5,
Fretting wear failure of spline tooth surface is likely to occur. Further, in the case of the planetary gear device that elastically supports the internal gear 3 shown in FIG. 6, when the number of the planet gears 2 is four or more, the position of the internal gear 3 is adjusted so that the torque is evenly distributed to each planet gear 2. The ability to make adjustments declines. This is also the case with the device of FIG. Further, in the case of the device of FIG. 6, the structure becomes complicated, and the reduction gear becomes heavy.
【０００６】本発明はかかる問題点に鑑みてなされたも
ので、内歯歯車を半径方向に撓むことができるようにし
て、遊星歯車を弾性支持できるようにし、各遊星歯車に
均等にトルクを配分する遊星歯車装置を提供することを
目的とする。The present invention has been made in view of the above problems, and it is possible to elastically support the planetary gears by allowing the internal gears to bend in the radial direction, and evenly applying torque to each planetary gear. It is an object to provide a planetary gear device for distribution.
【０００７】[0007]
【課題を解決するための手段】上記目的を達成するた
め、請求項１の発明では、中心に設けられた太陽歯車
と、該太陽歯車の外周と噛合する複数の遊星歯車と、該
複数の遊星歯車と内歯車で噛合する内歯歯車と、該内歯
歯車を円周方向に固定し半径方向に弾性支持する内歯歯
車支持部とを備え、前記内歯歯車の半径方向の剛性は前
記複数の遊星歯車の外周に沿って撓むようになってい
る。In order to achieve the above-mentioned object, in the invention of claim 1, the sun gear provided at the center, a plurality of planet gears meshing with the outer periphery of the sun gear, and the plurality of planets. An internal gear that meshes with a gear and an internal gear; and an internal gear support portion that fixes the internal gear in the circumferential direction and elastically supports it in the radial direction. It is designed to bend along the outer circumference of the planet gears.
【０００８】内歯歯車の半径方向の剛性は太陽歯車の回
りを回る全ての遊星歯車の外周に沿って撓むようになっ
ているので、各遊星歯車は太陽歯車および内歯歯車と確
実に噛み合い、太陽歯車との間でトルクは均等に配分さ
れる。The radial rigidity of the internal gear is such that it flexes along the outer circumference of all the planetary gears that orbit the sun gear, so that each planetary gear meshes reliably with the sun gear and the internal gear, and The torque is evenly distributed between the gears.
【０００９】請求項２の発明では、前記内歯歯車支持部
の半径方向の剛性は前記内歯歯車の半径方向の剛性より
小さい。According to the invention of claim 2, the radial rigidity of the internal gear supporting portion is smaller than the radial rigidity of the internal gear.
【００１０】内歯歯車は歯の付け根部などに応力集中が
発生するため、発生応力に応じた強度を保持するために
は、ある程度の厚みが必要である。しかし、この厚みは
遊星歯車の外周に沿って内歯歯車が撓むことができるよ
うにするため、可能な限り小さくして半径方向の剛性を
低くしてある。また内歯歯車支持部が内歯歯車の変形を
拘束することを防ぐため、内歯歯車支持部の半径方向の
剛性は内歯歯車の半径方向の剛性より小さくし、内歯歯
車を弾性支持している。Since the internal gear has stress concentration at the roots of the teeth and the like, a certain thickness is necessary to maintain the strength according to the generated stress. However, this thickness is made as small as possible in order to allow the internal gear to bend along the outer periphery of the planetary gear, and the rigidity in the radial direction is lowered. In addition, in order to prevent the internal gear support from restraining the deformation of the internal gear, the radial rigidity of the internal gear support should be smaller than the radial rigidity of the internal gear so that the internal gear is elastically supported. ing.
【００１１】[0011]
【発明の実施の形態】以下、本発明の好ましい実施形態
を図面を参照して説明する。なお、各図において、共通
する部分には同一の符号を付して使用する。図１は、本
発明による遊星歯車装置の断面図である。図２は図１に
示す歯車の軸系図である。本遊星歯車装置は図２に示す
ように、中心に設けられた太陽歯車１と、この周囲に配
置された遊星歯車２と、この周囲に配置さた内歯歯車３
と、遊星歯車２の回転軸と結合し、遊星歯車２の公転運
動を取り出すキャリア８から構成されている。BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention will be described below with reference to the drawings. In the drawings, common parts are designated by the same reference numerals and used. FIG. 1 is a sectional view of a planetary gear device according to the present invention. FIG. 2 is a shaft system diagram of the gear shown in FIG. As shown in FIG. 2, the present planetary gear device has a sun gear 1 provided at the center, a planetary gear 2 arranged around the sun gear 1, and an internal gear 3 arranged around the sun gear 1.
And a carrier 8 which is connected to the rotation shaft of the planetary gear 2 and takes out the revolution movement of the planetary gear 2.
【００１２】図１において、太陽歯車１は太陽歯車軸１
ａに設けられ、太陽歯車軸１ａに接続される図示しない
エンジンにより回転される。太陽歯車１の周囲には複数
（本実施の形態では４個）の遊星歯車２が太陽歯車１と
噛み合って配置されている。各遊星歯車２はそれぞれ中
心に軸受２ｂを介して遊星歯車軸２ａを有し、この遊星
歯車軸２ａの回りを回転する。各遊星歯車２の周囲には
それぞれと噛み合う内歯歯車３が設けられ、内歯歯車支
持部７によって半径方向に弾性支持され、円周方向には
拘束されている。内歯歯車支持部７はケーシング９に固
定されている。In FIG. 1, a sun gear 1 is a sun gear shaft 1
It is rotated by an engine (not shown) that is provided at a and is connected to the sun gear shaft 1a. A plurality of (four in the present embodiment) planetary gears 2 are arranged around the sun gear 1 so as to mesh with the sun gear 1. Each planetary gear 2 has a planetary gear shaft 2a in the center through a bearing 2b, and rotates around the planetary gear shaft 2a. An internal gear 3 that meshes with each planet gear 2 is provided around the planet gears 2. The internal gear 3 is elastically supported in the radial direction by an internal gear support 7 and is constrained in the circumferential direction. The internal gear support 7 is fixed to the casing 9.
【００１３】太陽歯車１、遊星歯車２、内歯歯車３は軸
方向に２個の歯列からなり、両歯列は軸方向で両者の中
心に対して下方に傾斜している。このように２重の歯列
とすることにより高速回転大馬力の減速を可能にしてい
る。The sun gear 1, the planetary gear 2 and the internal gear 3 are composed of two tooth rows in the axial direction, and both tooth rows are inclined downward in the axial direction with respect to the center of both. In this way, the double tooth row enables deceleration of high-speed rotating large horsepower.
【００１４】各遊星歯車軸２ａには太陽歯車軸１ａと同
一軸心を回転するキャリア８に接続され、遊星歯車２の
公転運動を取り出す。キャリア８はケーシング９に設け
られた軸受９ａにより回転可能に支持され、太陽歯車軸
１ａはキャリア８の内面に設けられた軸受８ａにより回
転可能に支持される。Each planetary gear shaft 2a is connected to a carrier 8 which rotates about the same axis as the sun gear shaft 1a, and takes out the revolution motion of the planetary gear 2. The carrier 8 is rotatably supported by a bearing 9a provided in the casing 9, and the sun gear shaft 1a is rotatably supported by a bearing 8a provided on the inner surface of the carrier 8.
【００１５】図３は内歯歯車とその支持装置を示す。内
歯歯車３は円筒形であり内面に内歯３ａが設けられてい
る。内歯歯車支持部７は内歯歯車３に接続する円筒部７
ａと、この円筒部７ａの端部に鍔状に設けられたつば部
７ｂと、このつば部７ｂを背中合わせに重ねてケーシン
グ９に固定するねじ７ｃからなる。内歯歯車３は遊星歯
車２と噛み合うとき撓み、遊星歯車２の外周に沿って曲
がる様な剛性とするが、内歯３ａの付け根部は応力集中
が生じ易いので、曲がっても大きな応力の発生しない程
度の厚みとする。内歯歯車支持部７の円筒部７ａは内歯
歯車３の厚みよりかなり薄くする。またつば部７ｂの中
央部は円筒部７ａより更に薄くしている。これにより内
歯歯車支持部７は内歯歯車３を弾性支持し、しかも内歯
歯車３の撓みにたいして追従して弾性支持することがで
きる。FIG. 3 shows an internal gear and its supporting device. The internal gear 3 is cylindrical and has internal teeth 3a on its inner surface. The internal gear supporting portion 7 is a cylindrical portion 7 connected to the internal gear 3.
a, a flange portion 7b provided in a flange shape at the end of the cylindrical portion 7a, and a screw 7c for fixing the flange portion 7b to the casing 9 by stacking them back to back. The internal gear 3 has a rigidity such that it flexes when meshed with the planetary gear 2 and bends along the outer periphery of the planetary gear 2, but since stress concentration is likely to occur at the root of the internal gear 3a, large stress is generated even if it bends. The thickness should not be applied. The cylindrical portion 7a of the internal gear support 7 is made considerably thinner than the thickness of the internal gear 3. The central portion of the brim portion 7b is thinner than the cylindrical portion 7a. As a result, the internal gear support portion 7 can elastically support the internal gear 3 and can follow the flexure of the internal gear 3 to elastically support it.
【００１６】図４は内歯歯車３の動作を示す。内歯歯車
３は各遊星歯車２の外周に沿った形状に撓んだ形状とな
る。（Ａ）の状態から（Ｂ）の状態に遊星歯車２が変化
するとすると内歯歯車３も対応して変化する。これによ
り歯車の製造誤差などにより生じた各遊星歯車２への伝
達トルクの不均一を解消する。各遊星歯車２に加わるト
ルクが均一になれば、各遊星歯車２、太陽歯車１、内歯
歯車３及びキャリア８もこの均一な負荷に対応すればよ
いので小型化が可能となる。とくに遊星歯車２の数が多
くなっても各遊星歯車２には均一な荷重が加わるので、
高荷重の減速機として適している。FIG. 4 shows the operation of the internal gear 3. The internal gear 3 has a bent shape along the outer circumference of each planetary gear 2. When the planetary gear 2 changes from the state (A) to the state (B), the internal gear 3 also changes correspondingly. As a result, the non-uniformity of the torque transmitted to each planetary gear 2 caused by the manufacturing error of the gear is eliminated. If the torque applied to each planetary gear 2 becomes uniform, each planetary gear 2, the sun gear 1, the internal gear 3, and the carrier 8 only have to deal with this uniform load, so that the size can be reduced. In particular, even if the number of planet gears 2 increases, a uniform load is applied to each planet gear 2,
Suitable as a high load reducer.
【００１７】なお、本発明は上述した実施形態に限定さ
れず、本発明の要旨を逸脱しない範囲で種々変更できる
ことは勿論である。It should be noted that the present invention is not limited to the above-described embodiments, and it goes without saying that various modifications can be made without departing from the gist of the present invention.
【００１８】[0018]
【発明の効果】上述したように、本発明の構成により、
内歯歯車を遊星歯車の外周に沿って撓むようにしたの
で、各遊星歯車には荷重が均一に加わるようになり、遊
星歯車装置を小型化し軽量化することができ、さらに大
きなトルクを伝達することができる。As described above, according to the configuration of the present invention,
Since the internal gear is designed to bend along the outer circumference of the planetary gears, the load is evenly applied to each planetary gear, and the planetary gear device can be made smaller and lighter, and a larger torque can be transmitted. You can
【図１】本発明の実施の形態を示す断面図である。FIG. 1 is a sectional view showing an embodiment of the present invention.
【図２】本実施の形態の軸系を示す図である。FIG. 2 is a diagram showing a shaft system of the present embodiment.
【図３】内歯歯車とその支持部の詳細図である。FIG. 3 is a detailed view of an internal gear and its supporting portion.
【図４】本実施の形態の動作を示す図である。FIG. 4 is a diagram showing the operation of the present embodiment.
【図５】内歯歯車をスプライン・カップリングで支持す
る装置を示す図である。FIG. 5 is a view showing a device for supporting an internal gear by a spline coupling.
【図６】内歯歯車を弾性支持する装置を示す図である。FIG. 6 is a diagram showing a device for elastically supporting an internal gear.
１ 太陽歯車 １ａ 太陽歯車軸 ２ 遊星歯車 ２ａ 遊星歯車軸 ２ｂ 軸受 ３ 内歯歯車 ３ａ 内歯 ７ 内歯歯車支持部 ７ａ 円筒部 ７ｂ つば部 ７ｃ ねじ ８ キャリア ８ａ 軸受 ９ ケーシング ９ａ 軸受 1 sun gear 1a sun gear shaft 2 planetary gear 2a planetary gear shaft 2b bearing 3 internal gear 3a internal tooth 7 internal gear support 7a cylinder 7b flange 7c screw 8 carrier 8a bearing 9 casing 9a bearing
Claims (2)
車の外周と噛合する複数の遊星歯車と、該複数の遊星歯
車と内歯車で噛合する内歯歯車と、該内歯歯車を円周方
向に固定し半径方向に弾性支持する内歯歯車支持部とを
備え、前記内歯歯車の半径方向の剛性は前記複数の遊星
歯車の外周に沿って撓むようになっていることを特徴と
する遊星歯車装置。1. A sun gear provided at the center, a plurality of planet gears meshing with the outer periphery of the sun gear, an internal gear meshing with the plurality of planet gears with an internal gear, and an internal gear An internal gear supporting portion that is fixed in the circumferential direction and elastically supported in the radial direction, and the radial rigidity of the internal gear is such that it flexes along the outer circumference of the plurality of planetary gears. Planetary gear unit.
前記内歯歯車の半径方向の剛性より小さいことを特徴と
する請求項１に記載の遊星歯車装置。2. The planetary gear device according to claim 1, wherein the radial rigidity of the internal gear supporting portion is smaller than the radial rigidity of the internal gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13460096A JPH09317833A (en) | 1996-05-29 | 1996-05-29 | Planetary gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13460096A JPH09317833A (en) | 1996-05-29 | 1996-05-29 | Planetary gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09317833A true JPH09317833A (en) | 1997-12-12 |
Family
ID=15132197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13460096A Pending JPH09317833A (en) | 1996-05-29 | 1996-05-29 | Planetary gear |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09317833A (en) |
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|---|---|---|---|---|
| DE10032626A1 (en) * | 2000-07-07 | 2003-04-03 | Flender A F & Co | Planetary gear with additional gear |
| JP2008045742A (en) * | 2006-08-15 | 2008-02-28 | United Technol Corp <Utc> | Epicyclic gear mechanism of turbine engine, turbine engine, and method of assembling epicyclic gear mechanism |
| JP2012086625A (en) * | 2010-10-18 | 2012-05-10 | Ntn Corp | Power-assisted bicycle |
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| US9976437B2 (en) | 2006-08-15 | 2018-05-22 | United Technologies Corporation | Epicyclic gear train |
| US10082105B2 (en) | 2006-08-15 | 2018-09-25 | United Technologies Corporation | Gas turbine engine with geared architecture |
| US10495182B2 (en) | 2017-05-09 | 2019-12-03 | Unison Industries, Llc | Planetary gear system and air turbine starter |
| US10519866B2 (en) | 2017-05-15 | 2019-12-31 | Unison Industries, Llc | Decoupler assemblies for engine starter |
| WO2023104409A1 (en) * | 2021-12-07 | 2023-06-15 | Zf Friedrichshafen Ag | Tiltably mounted planet carrier |
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-
1996
- 1996-05-29 JP JP13460096A patent/JPH09317833A/en active Pending
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|---|---|---|---|---|
| DE10032626A1 (en) * | 2000-07-07 | 2003-04-03 | Flender A F & Co | Planetary gear with additional gear |
| US11319831B2 (en) | 2006-08-15 | 2022-05-03 | Raytheon Technologies Corporation | Epicyclic gear train |
| US11221066B2 (en) | 2006-08-15 | 2022-01-11 | Raytheon Technologies Corporation | Ring gear mounting arrangement with oil scavenge scheme |
| US8708863B2 (en) | 2006-08-15 | 2014-04-29 | United Technologies Corporation | Epicyclic gear train |
| US12385409B2 (en) | 2006-08-15 | 2025-08-12 | Rtx Corporation | Epicyclic gear train |
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| US8858388B2 (en) | 2006-08-15 | 2014-10-14 | United Technologies Corporation | Gas turbine engine gear train |
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| US10082105B2 (en) | 2006-08-15 | 2018-09-25 | United Technologies Corporation | Gas turbine engine with geared architecture |
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| US10125858B2 (en) | 2006-08-15 | 2018-11-13 | United Technologies Corporation | Ring gear mounting arrangement with oil scavenge scheme |
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| JP2008045742A (en) * | 2006-08-15 | 2008-02-28 | United Technol Corp <Utc> | Epicyclic gear mechanism of turbine engine, turbine engine, and method of assembling epicyclic gear mechanism |
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| US10591047B2 (en) | 2006-08-15 | 2020-03-17 | United Technologies Corporation | Ring gear mounting arrangement with oil scavenge scheme |
| US10196989B2 (en) | 2006-08-15 | 2019-02-05 | United Technologies Corporation | Gas turbine engine gear train |
| US10830334B2 (en) | 2006-08-15 | 2020-11-10 | Raytheon Technologies Corporation | Ring gear mounting arrangement with oil scavenge scheme |
| US10890245B2 (en) | 2006-08-15 | 2021-01-12 | Raytheon Technologies Corporation | Epicyclic gear train |
| US10907579B2 (en) | 2006-08-15 | 2021-02-02 | Raytheon Technologies Corporation | Gas turbine engine with geared architecture |
| JP2012086625A (en) * | 2010-10-18 | 2012-05-10 | Ntn Corp | Power-assisted bicycle |
| US8720306B2 (en) | 2012-01-31 | 2014-05-13 | United Technologies Corporation | Turbine engine gearbox |
| US9222416B2 (en) | 2012-01-31 | 2015-12-29 | United Technologies Corporation | Turbine engine gearbox |
| US11525406B2 (en) | 2012-01-31 | 2022-12-13 | Raytheon Technologies Corporation | Turbine engine gearbox |
| US10781755B2 (en) | 2012-01-31 | 2020-09-22 | Raytheon Technologies Corporation | Turbine engine gearbox |
| US11970982B2 (en) | 2012-01-31 | 2024-04-30 | Rtx Corporation | Turbine engine gearbox |
| US9169781B2 (en) | 2012-01-31 | 2015-10-27 | United Technologies Corporation | Turbine engine gearbox |
| US10495182B2 (en) | 2017-05-09 | 2019-12-03 | Unison Industries, Llc | Planetary gear system and air turbine starter |
| US11378011B2 (en) | 2017-05-15 | 2022-07-05 | Unison Industries, Llc | Decoupler assemblies for engine starter |
| US10519866B2 (en) | 2017-05-15 | 2019-12-31 | Unison Industries, Llc | Decoupler assemblies for engine starter |
| US11753951B2 (en) | 2018-10-18 | 2023-09-12 | Rtx Corporation | Rotor assembly for gas turbine engines |
| WO2023104409A1 (en) * | 2021-12-07 | 2023-06-15 | Zf Friedrichshafen Ag | Tiltably mounted planet carrier |
| US12553496B2 (en) | 2021-12-07 | 2026-02-17 | Zf Friedrichshafen Ag | Tiltably mounted planet carrier |
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