• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to an oil recovery device ejected by centrifugal effect in a turbomachine, comprising a ring (17) substantially circular about an axis (X), the ring (17) comprising a first portion forming a bowl (19). ) surrounding the axis (X) and having an opening (22) rotated radially inwardly so as to recover oil ejected radially opposite said opening, and a second portion forming a substantially toroidal chamber (20) , open radially outwardly at a low point, so as to escape oil, a passage (23) being arranged between the bowl (19) and the chamber (20) substantially around the circumference around the axis (X) so as to pass the oil recovered by the bowl (19) in the chamber (20), characterized in that a flange (30) is arranged between a radially inner bottom (26) of the chamber ( 20) and said passage (23) so as to contain oil e accumulating in the radially inner bottom (26) of the chamber (20), in particular at a high point.
    公开号:FR3052522A1
    申请号:FR1655332
    申请日:2016-06-10
    公开日:2017-12-15
    发明作者:Jeremy Phorla Lao；Olivier Belmonte；Clementine Charlotte Marie Mouton
    申请人:SNECMA SAS；
    IPC主号:
    专利说明:

    1
    The field of the present invention is that of aeronautical propulsion and more particularly that of turbomachines comprising a rotating component, by> an epicyclic reduction gear, requiring significant lubrication, e turbomachine driving a doublet of contra-rotating propellers, for example, a reduction gear with epicyclic gear train whose outer ring toothed around the satellite carrier meshing on the satellites. Lubricating a piece of equipment in which all the elements are in rotation is a primordial aspect of its origin. If the gearbox is not sufficiently lubricated, friction between the gears or at the bearings causes premature wear and one of its performance. In order to avoid this problem, the lubrication system is designed for a large oil flow rate, typically of the order of 5,000 liters per hour for the gearbox. The reducer is contained in one or more casings forming an oil comprising evacuation means such as pipes which enter the oil into the lubrication system. Nevertheless, if oil is accumulating in the gearbox, a so-called churning phenomenon occurs which reduces the weight. It is therefore necessary that the oil discharge device is sioned to evacuate this flow from the enclosure of the gearbox. Moreover, the problem of the mass being important on an aircraft, it is necessary to avoid that the itif of recovery around the gearbox has accumulation areas, which can cause significant useless masses because of the oil flow: uer.
    For this, in particular, it is necessary an efficient oil recovery device to quickly reroute the oil in the lubrication circuit and thus avoid having an oil on this level, which would increase the amount of oil present in the circuit c would increase its mass. Generally, as is described for example in FR-A1-2 987> n place a circular groove for receiving the oil around the orifices by ejecting oil out of a rotating component. The walls of these walls generally prevent lateral projections in the enclosure. However, they do not usually prevent some of the oil from gravity on the gearbox. This oil can cause a surplus of oil in the caster or be thrown into the enclosure.
    To avoid this, solutions are known, for example described in the application -3020658, to force recovery and avoid projections that create lulation of oil in the chamber before being recovered. We take advantage of the rotation laquer the oil against the wall of the gutter.
    However, rotating makes it more difficult to recover oil down the itif as it tends to rise. It creates an oil pocket in the island and there is a buildup of oil detrimental to the mass of the system.
    There is therefore a need to improve the existing devices so that the oil-up device around a rotating component, such as a planetary epicyclic reducer, contains as little oil as possible and effectively redirects a large flow to the circuit. lubrication. The invention relates to a device for recovering oil ejected by the effect uge in a turbomachine, comprising a substantially circular ring of an axis, the ring comprising a first portion forming a trough ant the shaft and having an opening turned radially inward so as to eject oil ejected radially opposite said opening, and a second forming a substantially toroidal chamber, open radially outwardly angular sector surrounding a low point in a direction perpendicular to so as to escape oil, a passage being arranged between the 3 and the chamber substantially over the entire circumference of the ring, so as to sow the oil recovered by the bowl in the chamber , a rim being arranged in a radially inner bottom of the chamber and said passage, so as to contain 3 iile accumulating in this bottom radially in dull of the room, especially at the top opposite the low point. If the device is placed so that oil is projected by ugation into the bowl, for example by a cover of a reducer, this oil is! towards the toroidal chamber through the passage formed between the two, by its kinetic energy. The walls of the toroidal chamber hold the oil lions that can be formed in the different directions by meeting the bowl and then the chamber. It thus avoids splashing in the recovery zone and contains the oil for directing it to means and returning it to the lubrication circuit. The oil meeting the chamber internals condenses on and descends by gravity to the point where it is sent to the evacuation ports of the enclosure, xistence of the rim allows in particular, to prevent the oil that flows from the side of the chamber to the high point, accumulating on the bottom radially ur flows through the passage and falls on the gearbox. Thus, all the oil ichappe by centrifugation in front of the bowl being sensed by the device to cyens evacuation, it is avoided that the oil falling in reducer is iulule or is dispersed by its rotating elements in where it can accumulate. Preferably, within the angular sector surrounding the low point, the chamber has a radially external opening open to let the oil flow, a device having filled its office in the upper part, an important oil flow to and out of the chamber at the level of the angular sector. The closing of the ge and the opening of the radially outer wall of the chamber makes it possible to evacuate arriving in the chamber at the level of the low angular sector without there being any oil coming from the chamber. the cage does not have a fin in the angular sector of the low point. Their presence would be rather an embarrassment since they would guide the oil not closed wall. The arrangement of the bowl and of the chamber is arranged so as to transfer the oil as far as possible directly to the chamber while at the same time making it a well-circumscribed volume capable of containing the projections and / or the oil mist. which is formed at the time of oil recovery with high kinetics. According to variants of the invention which can be taken together> element: the passage opens in a side wall of the chamber which is substantially transverse to the axis, the passage is formed by an opening in a common part to the bowl and the side wall chamber substantially transverse to the axis, and the bowl has a plurality of fins distributed circumferentially and arranged to direct the oil to the passage, preferably the passage opens on a wall of the bowl Laterally in the direction the fins have a surface which rests on a side edge of the bowl opposite the passage and which joins the passageway with an orientation parallel to the axis at the latter. In this way, the fins, in addition to participating in directing the oil to the passage, strongly slow the rotational movement acquired by the oil expelled from the component ition. In this way, it promotes the tranquilization of the oil in the room and jente descent by gravity. In particular, it limits the rise of the chamber oil after the low point by driving the rotational movement and thus the amount of oil accumulated in the device. The walls of the chamber extend radially outwardly from the passage. This increases the volume of the chamber and allows the ard oil to condense on the larger walls to optimize the leads. Preferably, the chamber has lights on a part of its walls which lialeement external passage. Indeed, the flow of oil entering the chamber can compress the air therein a part of the oil which is pushed back to the bowl and then falls on the eur. Given the geometry of the device, and the fact that the oil comes from inside, the strongest pressure zone is usually outside, so it is in this area that the lights are the most effective for dropping the overpressure, the lights are on a sidewall part located on the side> wise. In fact, the escapement by the lights of the incoming oil is minimized by wise, since these lights are not in the direct path of the oil passing the passage. In this case, it will be rather oiled air that will cause a part of the oil in the room. Preferably, an auxiliary gutter communicates with said lumens and is designed to guide oil escaping through the lumens to the low point. Thus, the amount of residual oil escaping through the lumens is also accumulated and avoided accumulates in the enclosure. the device advantageously comprises a circular casing surrounding the ring and holding a flange holding the ring, and it is characterized in that the gutter is formed between the flange and radially outer walls of the ring, the invention also relates to a turbomachine comprising an iration device as described above, the device being installed such that the ture of the bowl is placed in front of the means for discharging oil from a> body rotating by centrifugation in a transverse plane, for example a eur with epicyclic gear train. DESCRIPTION OF THE FIGURES: The present invention will be better understood and other details, characteristics and aspects of the present invention will emerge more clearly on reading the following nonlimiting example, with reference to the accompanying drawings on: 1 schematically shows an axial section of a turbomachine it the invention; FIG. 2 shows an axially cut perspective of an epicyclic gear train gearbox concerned by the invention; 6 to 3 schematically in cross section the principle of (nnement reducer of Figure 2 with an oil recovery device according to the invention; Figure 4 shows schematically an axial section of a device according to tion around FIG. 3 shows an enlargement of FIG. 4 at the level of the device 5 of FIG. 3; FIG. 6 schematically shows an axial sectional view along a plane it of a line D of FIG. FIG. 3 shows a device according to the invention; FIG. 7 shows an external perspective cut-out view of a lubricating oil lubrication device according to the invention at point B of FIG. 3; FIG. 8 schematically shows an axial section of a variant of an itif according to the invention at point B of FIG. 3, and FIG. 9 schematically shows an axial sectional view along a plane it through the line D of FIG. , of the v Figure 8 illustrates an example of a turbomachine using tion. In this example, the turbomachine comprises from upstream to downstream according to the direction: main oulements, a thruster formed of a pair of counter-rotating propellers jne gas generator part 3 and a power turbine 4. The nce turbine 4, powered by the gas generator 3, drives through a speed reduction gear or gearbox with epicyclic gear train 5 and contrarotative, the concentric and coaxial shafts 6 and 7 of the two upstream propellers val 2, aligned according to an axis X. In this example, the gas generator 3 and the * 4 are downstream and slightly off-center with respect to the axis X of the doublet of rotating propellers, so that the shaft 8 entering the reducer n It is not directly from the power turbine but is driven by the latter by gears, in order to be in the X axis of the propellers. In other examples, the counter-rotating doublet 1, 2 may be downstream of the turbine 4 and their shafts 6,7 nt be aligned with that 9 of the turbine 4. The gearbox 5 is moreover, 7 ilement contained in one or more housings connected to the fixed structure of the lachine which form a chamber 12 for recovering lubricating oil from eur 5. reducer 5 is intended to transform the so-called rapid rotation speed of the shaft I 8 connected to the power turbine 4 in two distinct slow speeds said contrarotating lélices 1.2. For this, with reference to FIGS. 2 and 3, the ntiel gear unit with epicyclic gear train comprises, with respect to the longitudinal axis, a sun gear 11 in the form of a toothed wheel which is mounted by a splined connection on the incoming shaft 8, a satellite support 12 secured to the shaft 6 of the upstream propeller 1 of the doublet, on which satellites 13, here five in number arranged at 72 ° from each other around the axis X, are mounted by bearings 14, so as to rotate about Y axes connected to the satellite support 12, the satellites 13 being formed by toothed wheels meshing around the sun gear 11; and an outer ring 15 toothed, which meshes with the satellites 13 and which is integral with the shaft 7 of the downstream propeller 2 of the doublet, reference to Figure 3, where the elements of the gear 5 are schematically inserted, when the operation of the turbomachine, the sun gear 11 is driven rotational determined ω · by the shaft 8 entering. By meshing both on the rotating area 11 and on the outer ring 15, the satellites 13 are set in n at a speed ω2 around the Y axis of their bearing 14 and drive the supports 12 in a rotation at a speed Par3 around the X axis. On the other hand, in the case of the satellites 13, the outer ring 15 connected to the shaft 7 of the downstream propeller 2 rotates in a direction opposite to that of the planet carrier 12 at a distance of speed device distributes the torque provided by the input shaft 8 between the shafts 6, 7 of the lelices 1, 2 of the doublet in a given ratio. The value of the speed of η ω3 of the carrier-satellites 12 and the value of the rotation speed ω4 of the external me 15, in opposite directions, depend on the speed of the machine. In known manner, for example, in FR-A1-2,955,085 and in applications FR-A1-2,962,109 and FR-A1-2,940,247, the various gears and bearings of eur are generally lubricated by a system. , not shown, which transfers to the rotating reference frame of the satellite support 12. As indicated by the 3 referenced F in FIG. 3, the oil is injected into the rotating parts 1 of the gearing of the satellites 13 with the sun gear 11 and with the ring e 15, and at the level of the bearings 14; the oil is then ejected at the periphery of the outer ring 15 by centrifugation, generally over the entire circumference of the eur 5 around the X axis. The oil is thus projected towards the walls of the chamber 10 which generally has a section substantially circular around the eur 5 and which generally comprises a discharge port 16 at a) A of this section, relative to a vertical axis Z of nominal operation î according to the direction of gravity, so as to return the oil having lubricated the eur 5 to the lubrication circuit, not shown. In order to facilitate the evacuation of the oil leaving the gearbox 5, an induction device 17 connected to the enclosure 10 surrounds the gearbox 5 over most of the erence, with an opening at the low point A to guide the gearbox. oil to evacuation. Referring to Figure 4, schematically showing the high point B of Figure 3 positive in axial section, the reducer 5 is here arranged so that the oil having lubricated various elements is guided to orifices 18 formed in a median plane P ersal of the outer ring 15 and regularly distributed on: erence. In this way, the lubricating oil is expelled through the orifices 18 in radial velocity corresponding to the centrifugation exerted by the passage in outer ring 15 and a tangential velocity corresponding to the drive at n at the speed ω4 in the direction of rotation. The recovery device 17 concerned by the invention is attached to the enclosure 10 in i P, opposite the outlet of the orifices 18 for ejection of the oil from the outer ring js particularly, with reference in FIGS. 5 and 6, it can be seen that this device: uperation 17 comprises a substantially circular ring composed in two! 19, 20. FIG. 5 shows a cross-section of the recovery device 17 at point B of FIG. 3, the shape of which is substantially constant over the entire spectrum, with the exception of the sector surrounding the low point A, lying between > D and G of FIG. 3. FIG. 6 shows a transverse curve of the generating device 17 at the entrance of this angular sector, at the level of the radius D. The way in which the recovery device 17 is located in the angular sector is indicated having described its shape outside, on the rest of the circumference, e first part comprises a circular bowl 19 all around the eur 5. Its bottom 21 is turned radially outwardly and its opening 22, e radially to the inside. The circular bowl 19 is axially centered on the plane P of ejection of the oil around the outer ring 15. In fact, one can I the bowl 19 is also open at one of its lateral ends in the axial Dn to form an annular lateral passage 23 allowing the oil entering an opening 22 turned towards the orifices 18 (see FIG. 4) of the outer ring 15 to vacate laterally. Advantageously, the axial sections of the side wall placed in the passage 23, and the axial sections of the bottom 21 of the bowl are jite. They form a curve whose radial distance increases continuously t of the opening 22 of the bowl 19 to the side passage 23, so as to the oil to said lateral passage 23, without forming a threshold at the latter. However, the part of the side wall formed between the passage 23 and the edge of the 19 is here substantially transverse to the axis X, to avoid returning oil! Furthermore, with reference to FIG. 7, the bowl 19 advantageously comprises a circumferential sseion of fins 25, preferably regularly spaced apart over the circumference. These fins 25 extend radially substantially on the corrugator of the bowl 19, starting from the opening 22 and joining the bottom 21, possibly in a radial direction. Their axial sections thus form, e for the axial sections of the side wall and the bottom of the bowl 19, a dont whose radial distance increases continuously starting from the inner radial edge of fin 25 towards the lateral passage 23. The fins 25 thus contribute to the axial plane of the oil towards the passage 23. In addition, in the circumferential direction, the fins 25 substantially start from the side wall 24 opposite the passage 23 to r. They then take a direction substantially parallel to the X axis of rotation end at the side passage 23. In this way, the oil coming out of the 3 18 with a high speed of rotation, is effectively directed towards the age, as indicated by the arrows F in the figures, in particular FIGS. 4 to 7, is strongly depressed in rotation by the fins 25.
    In FIGS. 5 and 6, the second part of the recovery device 17 is formed by a toroidal chamber 20, axially adjacent to the bowl 19 at the lateral> wise level 23. The radially inner and radially outer bottoms 27 of the toroidal ire 20 here are curved and connected by side walls 28, 29 and flat plane transverse. The side wall 28 contiguous to the bowl 19 is e at the lateral passage 23. Note that the inner radius of the annular side passage 23 is greater than the minimum radius of the radially inner bottom 26 of the chamber 20. This nce can not not be large but it is significant, for example of the order of e the radial extension of the chamber 20. In this way, particularly with reference to the 5 showing the section of the device 17 at the high point B, this forms a rim 30 which line a volume located radially above the radially inner bottom 26 in oil can accumulate without falling through the opening 22 of the bowl 19. r elsewhere, the chamber 20 extends radially substantially beyond 23. The difference between its maximum radius and the radially outer edge of the side ge 23 is here substantially the same as the radial extension of the ge 23. The shape of the chamber 20 can contain and tranquilize the oil. Indeed, coming out of the lateral passage 23 largely forms a mist which nests in droplets against the walls 29, 27 of the chamber 20. These droplets then run off against the side walls 28, 29 of the chamber 20 in the chamber. angular surrounding the point B to the radii D and G of Figure 3, and, under gravity they descend under the effect of gravity to the low point A of the ire 20. As the chamber 20 is shifted axially by With respect to the bowl 19, 11 water of the high point B, the oil flowing along the side walls 28, 29 is llie by the inner radial bottom 26 before flowing to the low point A of the ire 20. Also , the radially inner flange 30 formed in the chamber 20 at i of the lateral passage 23 blocks this oil and prevents it from falling on the eur 5 through the opening 22 of the bowl 19. Moreover, the fins 25, having idle oil in the circumferential direction, promotes this movement In the vertical direction of the oil towards the low point A, in particular by limiting the upward drive in the direction of rotation ω4 of the outer ring 15 after the point reference to FIG. 6, it will be noted that input of the angular sector surrounding the Das A, at the radii D and G, the chamber 20 is open on the side of the 19 19, radially outside the latter. Preferably, the portions of the 29, 27 opposite to the lateral passage 23 are open, so as to direct the oil t of the passage 23 downwards towards the orifice 16 for evacuating the enclosure ns the low angular sector between the spokes D and G, the bowl 19 does not have fins. In a first configuration, it comprises the outer radial bottom and the lateral ge is open. The absence of the vanes makes it possible not to direct oil from the bowl towards the chamber in a direction opposite to the oil coming from the upper part of the chamber and towards the outlet orifice 16 of outlet 10. In a second configuration, the bowl 19 has no external bottom and its side walls close the lateral passage 23. The island chamber 20 may be absent or, at least, its radially outer wall 27 is slow open to let the water flow. 'oil. In this configuration, the absence in the angular sector allows the oil from the bottom of the reducer freely at the low point of the enclosure. Moreover, in this sector, the oil arriving gutter 19 can also escape directly to the low point A by the uvert of the latter, without being diverted by fins. In addition, the lateral closure 23 avoids a reflux of the oil coming from the toroidal chamber 20 towards the ire 19, if a large quantity of oil arrives at this level, or vice versa. The configurations allow the oil collected in the upper part of the island to fall freely at the low point A through the opening of the chamber at the angular sector surrounding this low point. falling from the gutter 19 and the toroidal chamber at the low point collected from the bottom of the chamber 10 and guided by gravity towards the orifice uation 16. s Figures 8 and 9 show, in the same places respectively that the figures 6 and further details for an alternative embodiment in which the general itrie of the device is identical. Note in these figures that the ring attached to the inner wall of the enclosure 10 by a circular flange 31 at 21 of the bowl 19. On this installation, the radially outer bottom 27 of the toroidal ire 20 is placed so that close to the wall of the enclosure 10. tte arrangement forms an auxiliary channel 32 circular between the enclosure 10, an ateral flange 31, the bottom 21 of the bowl 19 and the side wall 28 of the ire 20. This gutter auxiliary 32 may be open laterally at the level of the nte between the outer radial bottom 21 of the chamber 20 and the wall of the enclosure 10. tera however that, since the chamber 20 extends radially beyond the 1 of the 19, the auxiliary channel 32 has a radially inner bottom, substantially by a wall of the outer radial bottom 21 of the bowl 19, surrounded 5te by a first transverse wall, formed by the flange 31, and on the other hand the second wall transvers ale, formed by the side wall 28 of the chamber 20. The flange 31 is absent in the low angular sector between the spokes D and r do not disturb the flow of oil along the bottom wall of the enclosure 10. the auxiliary channel 32 disappears in the angular sector surrounding the low point 3 the spokes D and G, since there is no chamber 20 or bottom 21 of the bowl 'antageusement at this level, the auxiliary channel 32 communicates directly orifice 16 of the enclosure, by continuity with the walls of the latter, reference to Figures 8 and 9, in an alternative embodiment, the side wall 28 toroidal chamber 20 on the auxiliary gutter 32 has one or more circular rows of lights 33 regularly spread over the erence. Of course, as can be seen in FIG. 9, there are no lights 13 at the low point A because they are located at the outlet opening formed in the walls 28, 27 of the Chamber 20. The lights 33 make it possible to avoid a jamming of the toroidal chamber 20 due to a compression of the air by the oil. The oil, which can ppe with air through these lights, remains trapped in the auxiliary channel 32 by three lateral and the chamber 10 which is radially opposite. Then, by the gravitational deposition phenomenon in the plenum chamber 20, it downwards to be collected in the evacuation orifice 16 of the enclosure 10.
    The solution has been presented in the case of a gearbox where the oil is ejected by ugation of a rotating cover, formed here by the outer ring 15, which surrounds the eur but it is obvious that the solution applies to Any component where it is ejected peripherally by centrifugal effect. It can, for example, adapt; presented in the FR1251656 application, a gear whose outer ring e but is arranged to pass through circumferential slots, an oil driven by a rotating element, the satellite door, and ejected by effect uge.
    权利要求:
    Claims (1)
    [1" id="c-fr-0001]
    An oil recovery device ejected by centrifugal effect in a turbomachine, comprising a ring (17) substantially circular about an axis (X), the ring (17) comprising a first portion forming a bowl (19) surrounding the axis (X) and having an opening (22) rotated radially inwards, so as to recover oil ejected radially opposite said opening, and a second portion forming a substantially toroidal chamber (20) radially open outwardly in an angular sector surrounding a low point (A) in a direction (Z) perpendicular to the axis (X), so as to escape oil, a passage (23) being arranged between the bowl (19) and the chamber (20) substantially over the entire circumference of the ring (17), so as to pass the oil recovered by the bowl (19) in the chamber (20), characterized in that a rim (30) is arranged between a radially internal (26) of the chamber (20) and said passage (23), so as to contain oil accumulating in the radially inner bottom (26) of the chamber (20), in particular around a high point (B) opposite to the low point. Oil recovery device according to the preceding claim, wherein, within the angular sector surrounding the low point (A), the chamber (20) has a radially outer wall (27) open to let flow the oil. An oil recovery device according to any one of the preceding claims, wherein the passage (23) is formed by an opening in a portion common to the bowl (19) and the sidewall chamber (20) substantially transverse to the to the axis (X). An oil recovery device according to any one of the preceding claims, wherein the bowl (19) has a plurality of circumferentially distributed fins (25) and arranged to direct the oil toward the passage (23). Oil recovery device according to the preceding claim, wherein the passage (23) opens on a side wall of the bowl (19) in the axial direction, and the fins (25) have a surface which is supported on a side edge (24) of the bowl (19) axially opposite the passage (23) and which joins the passage (23) having an orientation substantially parallel to the axis (X) at the latter. An oil recovery device according to any one of the preceding claims, wherein walls (28, 29, 27) of the chamber (20) extend radially outward of said passage (23). An oil recovery device according to any one of the preceding claims, wherein the chamber (20) has lumens (33) on a portion (28) of its walls which is radially external to the passage (23). Oil recovery device according to the preceding claim, comprising an auxiliary gutter (32) communicating with said slots (33) and arranged to guide oil escaping through the lights to the low point (A). Oil recovery device according to the preceding claim, comprising a housing (10) circular surrounding the ring (17) and having a flange (31) holding the ring (17), the auxiliary channel being formed between the flange and walls radially external of the ring (17). Turbomachine comprising an oil recovery device according to any one of the preceding claims, the device being installed so that the opening (22) of the bowl (19) is placed in front of the means (18) of evacuation of oil of a component rotating by centrifugation in a transverse plane.
    类似技术:
    公开号 | 公开日 | 专利标题
    FR3052522A1|2017-12-15|DEVICE FOR RECOVERING LUBRICATING OIL EJECTED BY CENTRIFUGAL EFFECT IN A TURBOMACHINE
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    CA2864975C|2019-03-12|Device for recovering lubricating oil from an epicyclic reduction gear
    EP2893221B1|2019-08-14|Speed-reducing unit having an epicyclic gear train, in particular for a turbine engine
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    EP3408504B1|2020-04-22|Spinning oil distributor with axial partitioning and planetary reduction gear with such a distributor
    EP3575562B1|2021-06-30|Power transmission system comprising a device for recovering lubricating oil and turbine engine equipped with such a power transmission system
    CA2882383A1|2014-03-13|Epicyclic reduction gear, notably for turbomachine
    EP3137755B1|2019-07-03|Turbine engine module comprising a casing around a device with a cover for recovering lubricating oil
    FR2987417A1|2013-08-30|Epicyclic gear reducer for blower module of turbojet i.e. double-flow turbojet, has set of planetary carriers comprising positioned radial extension, and oil guided or ejected towards radial end of reducer by centrifugal force
    FR2987402A1|2013-08-30|Fan module for double-flow turbojet, has reducer carried by support casing that is able to be fixed on support of turbojet such that reducer is able to be mounted on fan module beforehand or during simultaneous assembly of fan module
    EP3669964B1|2021-01-06|Device for separating a mix of air/oil
    WO2018029413A1|2018-02-15|Meshing device for turbomachine, and associated turbomachine
    EP3212898B1|2018-12-12|Lubricating-oil collection cap for turbomachine equipment
    EP3822515A1|2021-05-19|Impeller for a planet carrier of a speed reducer with epicyclic gearset of a turbomachine
    FR3103240A1|2021-05-21|WHEEL FOR A TURBOMACHINE EPICYCLOIDAL GEAR REDUCER SATELLITE CARRIER
    FR3084407A1|2020-01-31|LUBRICATION OIL GUTTER FOR AN AIRCRAFT TURBOMACHINE
    FR3095243A1|2020-10-23|TURBOMACHINE SPEED REDUCER
    同族专利:
    公开号 | 公开日
    US10280795B2|2019-05-07|
    FR3052522B1|2018-06-01|
    US20170356306A1|2017-12-14|
    GB201709060D0|2017-07-19|
    GB2552883B|2022-02-23|
    GB2552883A|2018-02-14|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US6223616B1|1999-12-22|2001-05-01|United Technologies Corporation|Star gear system with lubrication circuit and lubrication method therefor|
    WO2013124590A1|2012-02-23|2013-08-29|Snecma|Device for recovering lubricating oil from an epicyclic reduction gear|
    FR2987402A1|2012-02-23|2013-08-30|Snecma|Fan module for double-flow turbojet, has reducer carried by support casing that is able to be fixed on support of turbojet such that reducer is able to be mounted on fan module beforehand or during simultaneous assembly of fan module|FR3084407A1|2018-07-26|2020-01-31|Safran Aircraft Engines|LUBRICATION OIL GUTTER FOR AN AIRCRAFT TURBOMACHINE|
    WO2020245529A1|2019-06-06|2020-12-10|Safran Aircraft Engines|Planetary reduction gear for an aircraft turbine engine|GB369875A|1930-11-17|1932-03-31|Avions H M D Farman|Improvements in and relating to the lubrication of internal combustion engines|
    DE3819519C2|1988-06-08|1993-01-14|Siemens Ag, 1000 Berlin Und 8000 Muenchen, De|EP3473893B1|2017-10-19|2020-06-17|Ge Avio S.r.l.|Lubrication fluid collection in a gearbox of a gas turbine engine|
    FR3081513B1|2018-05-28|2021-06-18|Safran Aircraft Engines|POWER TRANSMISSION SYSTEM INCLUDING A LUBRICATING OIL RECOVERY AND TURBOMACHINE EQUIPPED WITH SUCH A POWER TRANSMISSION SYSTEM|
    US10989073B2|2019-03-05|2021-04-27|Rolls-Royce Corporation|Power gearbox with embedded oil reservoir for use in a gas turbine engine|
    CN111878237B|2020-07-29|2021-11-16|中国航发湖南动力机械研究所|Oil collecting ring and oil supply lubricating device under ring|
    法律状态:
    2017-04-28| PLFP| Fee payment|Year of fee payment: 2 |
    2017-12-15| PLSC| Publication of the preliminary search report|Effective date: 20171215 |
    2018-06-05| PLFP| Fee payment|Year of fee payment: 3 |
    2018-09-14| CD| Change of name or company name|Owner name: SAFRAN AIRCRAFT ENGINES, FR Effective date: 20180809 |
    2019-05-22| PLFP| Fee payment|Year of fee payment: 4 |
    2020-05-20| PLFP| Fee payment|Year of fee payment: 5 |
    2021-05-19| PLFP| Fee payment|Year of fee payment: 6 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1655332A|FR3052522B1|2016-06-10|2016-06-10|DEVICE FOR RECOVERING LUBRICATING OIL EJECTED BY CENTRIFUGAL EFFECT IN A TURBOMACHINE|
    FR1655332|2016-06-10|FR1655332A| FR3052522B1|2016-06-10|2016-06-10|DEVICE FOR RECOVERING LUBRICATING OIL EJECTED BY CENTRIFUGAL EFFECT IN A TURBOMACHINE|
    GB1709060.6A| GB2552883B|2016-06-10|2017-06-07|Device for recovering lubrication oil ejected by centrifugal effect in a turbine engine|
    US15/618,915| US10280795B2|2016-06-10|2017-06-09|Device for recovering lubrication oil ejected by centrifugal effect in a turbine engine|
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