WO2022214133A1 - Radialfolienlager mit überlastsicherung und wellenverlagerungsbegrenzung - Google Patents
Radialfolienlager mit überlastsicherung und wellenverlagerungsbegrenzung Download PDFInfo
- Publication number
- WO2022214133A1 WO2022214133A1 PCT/DE2022/100243 DE2022100243W WO2022214133A1 WO 2022214133 A1 WO2022214133 A1 WO 2022214133A1 DE 2022100243 W DE2022100243 W DE 2022100243W WO 2022214133 A1 WO2022214133 A1 WO 2022214133A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- foil
- radial
- stop
- shaft
- bearing
- Prior art date
Links
- 239000011888 foil Substances 0.000 title claims abstract description 215
- 238000006073 displacement reaction Methods 0.000 title abstract description 35
- 230000002093 peripheral effect Effects 0.000 claims description 25
- 239000010408 film Substances 0.000 description 23
- 239000013039 cover film Substances 0.000 description 15
- 239000007787 solid Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
- F16C17/02—Sliding-contact bearings for exclusively rotary movement for radial load only
- F16C17/024—Sliding-contact bearings for exclusively rotary movement for radial load only with flexible leaves to create hydrodynamic wedge, e.g. radial foil bearings
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
- F16C32/0603—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a gas cushion, e.g. an air cushion
- F16C32/0607—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a gas cushion, e.g. an air cushion the gas being retained in a gap, e.g. squeeze film bearings
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C39/00—Relieving load on bearings
- F16C39/02—Relieving load on bearings using mechanical means
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2360/00—Engines or pumps
- F16C2360/23—Gas turbine engines
- F16C2360/24—Turbochargers
Definitions
- Radial foil bearings are provided for the aerodynamic mounting of shafts, with a load-bearing gas/air cushion being formed between the shaft and the radial foil bearing.
- the functionality is similar to that of a hydrodynamic plain bearing, with the difference that the shaft is supported by the radial foil bearing via an air cushion and not by a liquid cushion of a hydrodynamic plain bearing. What both functional forms have in common is that only the rotary movement of the shaft leads to the formation of the supporting cushion.
- Foil bearings differ from conventional aerodynamic bearings by having a compliant, resilient structure between the rotating shaft and the stationary housing member. Because of this feature, they are less rigid than conventional air bearings, but they can be adapted to geometrical changes in the air gap, e.g ability.
- the radial foil bearing usually has a cover foil that is in contact with the stationary shaft and a corrugated foil that is arranged radially between the cover foil and the outer ring of the bearing and can deflect elastically in the radial direction.
- the radial foil bearing has two foils in contact with one another and the foils carry the outer ring so that the radial foil bearing can be accommodated in a housing.
- the outer ring can also be formed in one piece from the housing into which the foils of the radial foil bearing are inserted.
- the shaft If the shaft is rotated relative to the radial foil bearing, the air present in the air gap defined by standstill is displaced. Above a certain shaft speed, an air cushion forms between the cover film and the shaft. le on which the shaft can slide.
- the foil package with its corrugated foil and its radial spring effect ensures that fluctuations in air pressure or vibrations of the shaft in the radial direction do not affect the bearing and thus keep the air cushion stable.
- EP 2942537 A1 shows a radial foil bearing with three corrugated foils and an almost circumferential cover foil, the corrugated foils each having a hook-shaped end hooked into its own slot in the outer ring and the cover foil being inserted into one of the slots with the ends lying against one another.
- EP 3387275 A1 shows a radial foil bearing with three packs of cover foil and corrugated foil, each pack being plugged into a slot in the outer ring at each end of the foil.
- the CN 209990776 U shows a radial film bearing in which both the corrugated film and the cover film are formed almost completely circumferentially, each having an angled end with which both films are inserted into a common slot. This connection is then secured by clamping with a screw.
- the solution according to the invention comprises a radial foil bearing with an integrated fixed stop as an overload protection device and limiter of shaft displacement, against which the shaft to be supported can run and as a result the radial foil bearing is protected from failure or damage. Furthermore, the solution according to the invention also protects the compressor, in which the radial foil bearing according to the invention is used, from failure by maintaining freedom of movement between the compressor wheel and the housing wall surrounding it.
- the solution according to the invention provides a radial foil bearing with an outer ring, a corrugated foil and a cover foil, with the corrugated foil being arranged radially between the outer ring and the cover foil, and at least three foil packs consisting of exactly one corrugated foil and exactly one cover foil, which are formed on and are arranged in succession along the inner peripheral surface of the outer ring, with each foil pack being provided with a radially inwardly directed stop for the shaft to be supported, which is formed by the inner peripheral surface of the outer ring, with the first radial gap between a stop and the opposite one the shaft to be carried is smaller than a second radial gap between a non-rotatably connected component to the shaft to be carried and a housing wall opposite this component.
- the solution according to the invention reduces impermissibly high component stresses when the corrugated foil deflects too much, and breakage of the corrugated foil or plastic deformation of the spring structure of the corrugated foil is avoided.
- damage in the radial foil bearing or in the compressor wheel connected to the shaft to be supported can be prevented.
- corrugated spring foil which meets both the requirements in terms of the foil bearing function and the absorption of impact loads, is significantly simplified by the solution according to the invention.
- the radial spring constant of the corrugated foil can now be selected to suit the absorption of the shock loads, so that the force of the air pressure built up in the bearing gap by the shaft rotation is sufficient to form a large and stable bearing surface with a constant bearing gap between the cover foil and the rotor shaft.
- the dimensioning of the first radial gap against the stop increases the efficiency of the compressor, since this first radial gap limits the displacement of the compressor wheel with the second radial gap and also determines the second radial gap in terms of its magnitude.
- This gap limits the displacement of the compressor wheel with the second radial gap and also determines the second radial gap in terms of its magnitude.
- the smaller this gap the higher the efficiency of the compressor.
- the definition of the maximum permissible radial shaft displacement thus prevents solid contact between the compressor terrad and the surrounding compressor housing.
- the invention proposes a radial foil bearing that allows optimization of the support structure made of cover foil and corrugated foil and at the same time limits the radial deflection without exceeding the permissible material stresses of the corrugated foil.
- At least one of the contact partners or both are provided with a coating that reduces friction and/or protects against wear.
- the radial foil bearings have a foil pack consisting of at least one cover foil and at least one corrugated foil, but preferably exactly one cover foil and exactly one corrugated foil, with the foil pack having an elastic sheet steel foil structure which, during operation, allows a radial displacement of the shaft relative to the housing in allows certain limits.
- the shaft displacement that occurs during operation essentially depends on the rigidity of the bearing and on the static and dynamic forces that occur.
- the resilience of the foil bearing is a defined property in order to be able to withstand a rapidly rotating shaft the air cushion that builds up in the contact between shaft and bearing to create a large and therefore load-bearing bearing surface and thus enable stable operation.
- the radial displacement of the shaft must not exceed a certain limit value, as otherwise undesirable solid contact can occur between the rotating and stationary components of the compressor (eg contact between the compressor wheel and the housing).
- shock loads introduced from the outside during operation in vehicles can generate high forces and result in a correspondingly large radial deflection of the shaft.
- the maximum elastic, radial deflection of the foil package is preferably limited by a number of stops in the bearing. Should the shaft to be carried experience a radial displacement from the side of one stop, the shaft to be carried will find its radial limit at two stops, between which the shaft to be carried may compress the film package to a permissible value. Between the two stops, the radial displacement will reach its maximum value exactly in the middle between the two stops that follow one another in the circumferential direction. The smallest radial displacement of the shaft to be carried is achieved when the shaft to be carried hits a stop exactly.
- the stop is formed radially in the direction of the shaft to be worn and from the inner lateral surface of the outer ring emphasizing fastening supply surface for the film package or one of the films of the film package.
- a fastening surface for the foil pack or one of the foils of the foil pack that protrudes radially in the direction of the shaft to be carried and from the inner surface of the outer ring serves as a stop to limit the radial displacement of the shaft to be carried.
- the stop or stops in such a way that they have a rigidity that is at least a factor of three higher than that of the film packs.
- each film package is at one En de each other and at the same time with the outer ring in the area of the stop with the The outer ring is firmly connected, with the other end of the foil package contacting each other and the outer ring, so that the foils can move relative to one another and to the outer ring.
- a preferred embodiment provides that the film package of cover film and corrugated film lie flat against one another in the area of the stop, so that the jointly formed front surface points in the circumferential direction and the contact surfaces are formed by sections of the circumferential surfaces.
- the stop of the outer ring has an extent in the axial direction that corresponds to the axial extent of the front contact surface of the foil pack to the stop.
- the cover film at least partially covers the stop and the radial gap is formed between the shaft to be supported and the cover film.
- the stop is advantageously set back in the radial direction relative to an enveloping circle in the bearing bore, ie the radial distance from the enveloping circle center to the enveloping circle jacket (enveloping circle radius) is smaller than the radial distance from the enveloping circle center to the stop.
- bearing bore is to be understood as a component-free hole concentric to the bearing center, into which the shaft to be supported is inserted.
- the stop protrudes inward in the radial direction from the enveloping circle of at least one of the cover foils.
- the enveloping circle of the arcuate cover film is formed by its radius and defines a component-free interior space, apart from the shaft to be carried.
- the stop has a stop edge for peripheral stops at least one film of a film pack.
- a radial foil bearing arrangement according to the invention with a radial foil bearing also solves the problem in that a compressor wheel is connected in a rotationally fixed manner to the shaft to be carried by the radial foil bearing, which closes the second radial gap has its housing wall.
- This radial gap between the compressor wheel and its enclosing housing wall is larger than the radial gap between the shaft to be supported and the stop of the radial foil bearing, so that in the event of vibrations that lead to radial displacement of the shaft in the radial foil bearing, the shaft to be supported is against the stop or the stops in the radial foil bearing can start and thereby also the radial displacement of the compressor wheel be limited so that the compressor wheel has sufficient radial distance to its housing wall and does not contact it.
- the shaft to be supported and/or the stops can be provided with a friction and wear-reducing coating.
- the stop on the inner peripheral surface in the outer ring of the radial foil bearing can be used for the exact positioning of the foils on the outer ring.
- a package consisting of a cover film and a corrugated film is positioned on the end face at the same time on a single stop or on a step formed from the stop and extending radially and designed as a stop edge.
- the foils are positioned exactly to each other and to the outer ring.
- the outer ring in the context of the invention can be used as a separate component as an outer component - in a housing or be integrally formed with the housing Housing bore is formed.
- the multi-part design (outer component) and the one-piece design (housing bore) are combined under the term outer ring.
- the foil pack can be placed in the ring shape of an outer ring.
- the one or more stops designed in one piece from the outer ring of the radial foil bearing are set off radially inward from the inner peripheral surface for contact with the foil pack.
- the stops protrude from the inner peripheral surface radially inward.
- the attack or attacks are preferably plateau-shaped, which can come into contact with the foil pack or one of the foils of the foil pack or comes into contact.
- the shaft to be worn can come into direct contact with the stop or indirectly via components arranged in between, for example foils of the foil pack.
- Cover foil and corrugated foil preferably lie flat against one another in the area of the stop, so that the front surface of both foils points in the circumferential direction and the contact surfaces with respect to one another are formed by sections of the circumferential surfaces of the foils.
- the corrugated foil does not have any corrugated contours in this area.
- the peripheral surfaces largely follow the shape of a circular arc and thus the geometry of the inner lateral surface of the outer ring.
- both foils of the foil pack can lie jointly on the radial step, whereby it is also alternatively possible that one of the foils of the foil pack is in contact with the step with its front side, the other foil being spaced apart from the step . In both cases, the foil package is reliably and correctly positioned in the circumferential direction via the step to the outer ring.
- the step for each foil can have a different geometric shape, as mentioned at the beginning, provided that the contact between each foil and each step blocks one degree of freedom (in the circumferential direction).
- a stair-like, stepped design of the step is conceivable as an example, in which each film comes into contact with its step with its front contact surface.
- the design of the radial foil bearing according to the invention allows only one direction of rotation of the shaft. A directed installation of the radial foil bearing is also necessary so that the Direction of rotation of the shaft to be carried corresponds to the operating direction of rotation of the radial foil bearing.
- the stops according to the invention or the stop according to the invention can be used as a means of orientation.
- the axial extent of the inner peripheral surface of the outer ring corresponds to the width of the corrugated foil or the cover foil or the foil package in order to ensure reliable support in the circumferential direction.
- the fixed connection of the foil pack to the outer ring is preferably provided at the end of the foil or foils, which is located in the area of the stop.
- the other end of the foil or foils is unattached to the outer ring, but abutting each other and the outer ring.
- the firm connection of the foil package with the outer ring and/or the foils to one another can preferably be effected by a laser or resistance spot welding process.
- the cover film of one film package overlaps with the cover film of the film package that follows in the circumferential direction at a radial distance.
- the circumferential bearing surface is advantageously enlarged and the installation space in the circumferential direction between the individual foil packs is also used much better for this purpose.
- the radial distance is defined in such a way that the geometry of the cover film changes in the circumferential direction.
- the cover film is on a different pitch circle than outside the stop.
- the free end of the cover film of a film package can overlap the fixed end of the cover film of the film package that follows on the peripheral side with a radial distance and without mutual contact.
- the free end of the cover foil of a foil pack overlaps the fixed end of the cover foil of the foil pack following on the circumference and thereby form the surface of the stop.
- the circumferential distance between two consecutive cover foils is dimensioned in such a way that they do not touch one another during operation, in particular when the radial foil bearing or the shaft is shaken.
- the circumferential spacing is also such that tearing of the air cushion is avoided, for example the spacing is measured on the basis of the turbulence occurring at the end of the film.
- FIG. 2 shows the radial foil bearing according to FIG. 1 in the case of a radial displacement of the shaft to be supported
- FIG. 3 shows a first embodiment according to the invention of the radial foil bearing with a stop without radial displacement of the shaft to be supported
- FIG. 4 shows the radial foil bearing according to FIG. 3 in the case of radial displacement of the shaft to be supported
- FIG. 5 shows a second embodiment according to the invention of the radial foil bearing with a stop in the case of radial displacement of the shaft to be supported; and
- FIG. 6 shows a third embodiment according to the invention of the radial foil bearing with a stop in the case of radial displacement of the shaft to be supported.
- FIG. 1 shows a radial foil bearing 1 without overload protection and path limitations for the shaft 7 to be supported.
- the shaft 7 rotating in the direction of rotation 14 is located centrally in the radial foil bearing 1, since the shaft 7 is due to air cushions formed between the outer peripheral surface of the shaft 7 and the cover foils 4 will be carried.
- FIG. 1 shows a radial foil bearing 1 with an outer ring 2, a corrugated foil 3 and a cover foil 4, with a corrugated foil 3 and a cover foil 4 forming a foil package 8.
- Three foil packs 8 are patterned consecutively over the circumference of the outer ring 2 and are arranged at regular intervals from one another.
- the corrugated foil 3 rests on an inner peripheral surface 5 of the outer ring 2 and has a corrugated shape as seen in the circumferential direction of the radial foil bearing 1 .
- the cover foil 4 rests against the corrugated foil 3 .
- the corrugated shape of the corrugated foil 3 allows the cover foil 4 to be pushed in towards the outer ring 2 .
- a peripheral gap is formed during operation along the peripheral direction 11 that is largely constant in regular operation, through the supporting air cushion.
- Fig. 2 shows the radial foil bearing 1 according to Fig. 1 in the case of a radial displacement of the shaft 7 to be supported. Due to static (e.g. the weight of the shaft 7) and dynamic loads during operation of the radial foil bearing 1, a displacement of the shaft 7 in the direction of displacement 15 can take place . These loads act on the air cushion and allow it and the film packs to deflect. If the displacement from the compression is too great, the radial foil bearing 1 can be damaged and/or the components non-rotatably connected to the shaft 7, for example a compressor wheel not shown here, come into contact with peripheral components, for example those surrounding the compressor wheel housing wall. The ra diale distance on the diametrically opposite side of the contact of the shaft 7 to the cover film 4 increases and reaches an impermissibly high value without a stop 6.
- Fig. 3 shows a first embodiment according to the invention of the radial foil bearing 1 with a stop 6 as an overload limit or shaft displacement limit without showing the radial displacement of the shaft 7 to be supported.
- the shaft 7 rotates in the direction of rotation 14, as a result of which the air cushion between the z.s character the shaft 7 and the cover sheets 4 forms and the shaft 7 at a distance from the cover sheets 4 carries.
- the radial foil bearing 1 is in safe operating condition.
- the stop 6 protruding radially inward from the inner peripheral surface 5 of the outer ring 2 together with the outer peripheral surface of the shaft 7 now defines the gap 9, which is smaller than a radial gap between a compressor wheel which is rotatably connected to the shaft 7 and its peripheral housing wall, which contains the compressor wheel surrounds.
- the stop 6 rises like a plateau from the inner peripheral surface 5 and forms both a shaft displacement limitation for the shaft 7 and a mounting surface for the foil package 8, consisting of exactly one cover foil 4 and exactly one corrugated foil 3.
- the foils 3 and 4 lie with one Contact surface 12 both on each other and on the stop 6.
- the film package 8 is limited in the circumferential direction 11 by contact of its front contact surfaces 13 with a stepped stop edge 10.
- the stop edge 10 is placed on the stop 6 in the circumferential direction 11 in succession. In the direction of rotation 14 of the shaft 7, the stop edge 10 is followed by the stop 6 and then the radially resilient area of the foil pack 8, which is firmly connected to the preceding stop 6.
- the indirect contact with the stop 6 is based on the fact that the foils 3 and 4 of the foil pack 8 firmly connected to the stop 6 are arranged between the outer peripheral surface of the shaft 7 and the stop 6 .
- the thickness of the foils is negligible in terms of touch behavior.
- the foils 3 and 4 of the foil package 8 rest with their circumferential contact surfaces 12 against one another and in this area also against the plateau-like stop 6.
- the end contact surfaces Chen 13 rest against a stepped stop edge 10, which limits and positions the foils 3, 4 in the circumferential direction 11 during assembly with the outer ring 2.
- the stop edge 10 is not designed as a step. Rather, a normal vector of the contact surfaces 13 in the circumferential direction is parallel to a limiting surface of the stop 6, which, due to the plateau-like formation of the outer ring 2, is formed radially inward. On this side surface (limiting surface) delimiting the stop 6, the contact surfaces 13 are aligned, as shown. This means that more space in the circumferential direction 11 can be gained, for example to increase the circumferential support length of the cover foils 4, or the radial foil bearing 1 can be reduced in its radial or diametrical extent.
- the stop 6 shows a third embodiment according to the invention of the radial foil bearing 1 with a stop 6 in the event of radial displacement of the shaft 7 to be supported.
- the stop 6 can itself deflect as shown here as a spring element 16 and not only limit the displacement of the shaft 7, but can also slow down its movement in order to reduce the force impulse when stepping into contact (directly or indirectly) with the stop 6 .
- the spring element 16 is designed as a separate construction part for the outer ring 2 and is inserted into a receptacle on the inner peripheral surface 5 of the outer ring 2 .
- the spring element 16 can also serve as a receptacle for fastening the foil ends of the foils 3 and 4 of the foil pack 8 .
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Support Of The Bearing (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202280027282.7A CN117222819A (zh) | 2021-04-09 | 2022-03-29 | 具有过载保护和轴位移限制机构的径向箔片轴承 |
KR1020237030813A KR20230136763A (ko) | 2021-04-09 | 2022-03-29 | 과부하 방지 및 샤프트 변위 제한 메커니즘을 구비한 레이디얼 포일 베어링 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102021108888.7 | 2021-04-09 | ||
DE102021108888.7A DE102021108888A1 (de) | 2021-04-09 | 2021-04-09 | Radialfolienlager mit Überlastsicherung und Wellenverlagerungsbegrenzung |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022214133A1 true WO2022214133A1 (de) | 2022-10-13 |
Family
ID=81325070
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2022/100243 WO2022214133A1 (de) | 2021-04-09 | 2022-03-29 | Radialfolienlager mit überlastsicherung und wellenverlagerungsbegrenzung |
Country Status (4)
Country | Link |
---|---|
KR (1) | KR20230136763A (de) |
CN (1) | CN117222819A (de) |
DE (1) | DE102021108888A1 (de) |
WO (1) | WO2022214133A1 (de) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2027607A1 (de) * | 1969-08-06 | 1971-02-18 | Garrett Corp | Hydrodynamisches Stromungsmittellager mit nachgiebigen Elementen |
US20080267543A1 (en) * | 2007-04-26 | 2008-10-30 | Capstone Turbine Corporation | Compliant Foil Fluid Film Radial Bearing Or Seal |
JP2013032797A (ja) * | 2011-08-01 | 2013-02-14 | Ntn Corp | フォイル軸受 |
EP2942537A1 (de) | 2014-04-15 | 2015-11-11 | Honeywell International Inc. | Lagerbuchse für luftlager |
CN106594059B (zh) * | 2017-01-17 | 2018-08-10 | 湖南大学 | 三瓣式气体箔片径向轴承 |
EP3387275A1 (de) | 2015-12-10 | 2018-10-17 | Schaeffler Technologies AG & Co. KG | Folienlager |
CN209990776U (zh) | 2019-05-13 | 2020-01-24 | 大连理工大学 | 一种长方体销钉式的空气动压箔片轴承箔片固定结构 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5427455A (en) | 1994-04-18 | 1995-06-27 | Bosley; Robert W. | Compliant foil hydrodynamic fluid film radial bearing |
US6698930B2 (en) | 2000-12-01 | 2004-03-02 | Mitsubishi Heavy Industries, Ltd. | Foil gas bearing |
-
2021
- 2021-04-09 DE DE102021108888.7A patent/DE102021108888A1/de active Pending
-
2022
- 2022-03-29 WO PCT/DE2022/100243 patent/WO2022214133A1/de active Application Filing
- 2022-03-29 CN CN202280027282.7A patent/CN117222819A/zh active Pending
- 2022-03-29 KR KR1020237030813A patent/KR20230136763A/ko unknown
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2027607A1 (de) * | 1969-08-06 | 1971-02-18 | Garrett Corp | Hydrodynamisches Stromungsmittellager mit nachgiebigen Elementen |
US20080267543A1 (en) * | 2007-04-26 | 2008-10-30 | Capstone Turbine Corporation | Compliant Foil Fluid Film Radial Bearing Or Seal |
JP2013032797A (ja) * | 2011-08-01 | 2013-02-14 | Ntn Corp | フォイル軸受 |
EP2942537A1 (de) | 2014-04-15 | 2015-11-11 | Honeywell International Inc. | Lagerbuchse für luftlager |
EP3387275A1 (de) | 2015-12-10 | 2018-10-17 | Schaeffler Technologies AG & Co. KG | Folienlager |
CN106594059B (zh) * | 2017-01-17 | 2018-08-10 | 湖南大学 | 三瓣式气体箔片径向轴承 |
CN209990776U (zh) | 2019-05-13 | 2020-01-24 | 大连理工大学 | 一种长方体销钉式的空气动压箔片轴承箔片固定结构 |
Also Published As
Publication number | Publication date |
---|---|
CN117222819A (zh) | 2023-12-12 |
DE102021108888A1 (de) | 2022-10-13 |
KR20230136763A (ko) | 2023-09-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE102008011147B4 (de) | Spielfreies Planetengetriebe mit geteilten Planetenrädern, die durch parallel zur Planetenrotationsachse angeordnete Vorspannelemente vorgespannt sind | |
EP3374666B1 (de) | Spielfreie pendellagerung am entkopplungsspanner | |
DE102007055005A1 (de) | Anlaufscheibe und Radial-Axial-Lager mit einer solchen | |
WO2004107533A1 (de) | Elektrische maschine | |
DE102009056352B4 (de) | Wälzlager mit am Lageraußenring angebrachten höckerartigen Vorsprüngen | |
EP0440917A1 (de) | Abgasturbolader-Lagerung | |
WO2015014359A1 (de) | Fliehkraftpendel | |
DE102016219919A1 (de) | Elastisches Zahnrad eines Wellgetriebes | |
DE3936069C2 (de) | ||
DE102006046179B4 (de) | Einstellvorrichtung für eine Radaufhängung von Kraftfahrzeugen | |
DE102017127529A1 (de) | Lagerkäfig | |
WO2001004507A1 (de) | Torsionsfeder, drehschwingungsdämpfer sowie anordnung mit einer torsionsfeder | |
WO2022214133A1 (de) | Radialfolienlager mit überlastsicherung und wellenverlagerungsbegrenzung | |
DE102011005761A1 (de) | Lageranordnung mit einem Fanglager | |
DE102013211476A1 (de) | Loslagersystem für eine elektrische Maschine | |
WO2022214134A1 (de) | Modulares radialfolienlager mit aussenhülse | |
EP2646703B1 (de) | Tripode-rollelement mit federring | |
DE112022002329T5 (de) | Motor mit Untersetzungsgetriebe | |
DE102021108886A1 (de) | Radialfolienlager mit federkraftvorgespannten Folien | |
EP3111106B1 (de) | Fliehkraftpendel | |
DE102021108882B3 (de) | Radialfolienlager mit Anschlagkante im Außenring zur Folienpositionierung | |
WO2015165455A1 (de) | Fliehkraftpendel | |
DE102021108883A1 (de) | Radialfolienlager mit mehreren Tragflächen, Kontaktwinkeldefinition | |
DE102014215584A1 (de) | Flansch für eine Drehmomentübertragungseinrichtung | |
WO2022247979A1 (de) | Modulares radialfolienlager mit elastischer trägerfolie |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 22715530 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 20237030813 Country of ref document: KR Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1020237030813 Country of ref document: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 202280027282.7 Country of ref document: CN |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 22715530 Country of ref document: EP Kind code of ref document: A1 |