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WO2018100949A1 - Palier à feuilles - Google Patents

Palier à feuilles Download PDF

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Publication number
WO2018100949A1
WO2018100949A1 PCT/JP2017/039140 JP2017039140W WO2018100949A1 WO 2018100949 A1 WO2018100949 A1 WO 2018100949A1 JP 2017039140 W JP2017039140 W JP 2017039140W WO 2018100949 A1 WO2018100949 A1 WO 2018100949A1
Authority
WO
WIPO (PCT)
Prior art keywords
foil
resin
bearing
metal
bearing surface
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.)
Ceased
Application number
PCT/JP2017/039140
Other languages
English (en)
Japanese (ja)
Inventor
和慶 原田
哲弥 栗村
隆生 新井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NTN Corp
Original Assignee
NTN Corp
NTN Toyo Bearing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NTN Corp, NTN Toyo Bearing Co Ltd filed Critical NTN Corp
Publication of WO2018100949A1 publication Critical patent/WO2018100949A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/16—Arrangement of bearings; Supporting or mounting bearings in casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/18—Lubricating arrangements
    • F01D25/22—Lubricating arrangements using working-fluid or other gaseous fluid as lubricant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/06—Arrangements of bearings; Lubricating
    • 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/20—Sliding surface consisting mainly of plastics
    • F16C33/201—Composition of the plastic
    • 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
    • F16C27/00—Elastic or yielding bearings or bearing supports, for exclusively rotary movement
    • F16C27/02—Sliding-contact bearings

Definitions

  • the present invention relates to a foil bearing.
  • a foil bearing has a flexible thin plate (foil) that forms the bearing surface.
  • the bearing clearance is appropriate depending on the operating conditions such as the rotational speed, load, and ambient temperature of the shaft. It is characterized by being automatically adjusted to a wide width.
  • the fluid pressure in the bearing gap is low during low-speed rotation such as when the shaft is started or stopped, so the foil and the shaft repeatedly contact and slide.
  • the foil and the shaft are both made of metal, adhesion occurs on the sliding surface between the foil and the shaft, which may increase the friction torque and damage the shaft and the bearing.
  • a coating such as molybdenum disulfide or nickel plating may be applied to the surface of the foil (see, for example, Patent Document 1 below).
  • the coating gradually wears due to contact with the shaft. Since the film thickness of the coating is at most about several tens of ⁇ m, the durability is limited. In addition, the work of coating the foil is time consuming, which causes a high cost.
  • an object of the present invention is to increase the durability against frictional wear of the bearing surface by a low-cost method.
  • the present invention provides a foil bearing comprising a resin-made top foil portion having a bearing surface and a metal back foil portion that elastically supports the top foil portion from behind. To do.
  • the top foil portion having the bearing surface with resin, it is possible to improve the slidability with the rotating member (shaft) as compared with the bearing surface formed with metal. Moreover, since the resin-made top foil part can be formed thickly compared with coatings, such as molybdenum disulfide, durability with respect to frictional wear is improved. Furthermore, since the resin-made top foil part is easier to manufacture than a coating such as molybdenum disulfide, the manufacturing cost is reduced.
  • the static rigidity of the resin greatly decreases with time and temperature.
  • the change in static stiffness with time and temperature of the metal is much smaller than that of the resin.
  • the top foil portion having the bearing surface is formed of resin
  • the back foil portion that supports the top foil portion is formed of metal, thereby improving the sliding performance of the bearing surface and the back foil. It is possible to prevent the bearing performance from deteriorating by suppressing the temporal and temperature changes of the static rigidity of the portion. That is, the above-mentioned foil bearing bears the elasticity (spring property) of the bearing surface by the metal back foil part, and bears the friction and wear characteristics of the bearing surface by the resin top foil part, It is compatible with high durability against frictional wear.
  • the foil bearing described above has, for example, a configuration including a foil laminate including a resin foil as the top foil portion and a metal foil as the back foil portion arranged to overlap the resin foil. it can.
  • the vibration of the rotating member (shaft) is attenuated by the Coulomb friction caused by the sliding, so that the stability of the support by the foil bearing can be improved.
  • the foil bearing described above may have a composite foil in which a resin layer as the top foil portion is integrally provided on the surface of the metal foil as the back foil portion.
  • the resin layer is an injection-molded product of a resin using a metal foil as an insert part, the adhesion between the metal foil and the resin layer can be further enhanced, and peeling of both can be prevented.
  • the resin top foil portion is not required to have a spring property, so the range of selection of the material of the top foil portion is widened.
  • the resin-made top foil part can be formed of a material having a lower static rigidity at room temperature than a metal back foil part.
  • the durability against the frictional wear of the bearing surface can be enhanced by a low cost method.
  • FIG. 1 It is sectional drawing of the foil bearing which concerns on one Embodiment of this invention. It is a perspective view which shows the procedure which overlaps a resin foil and a metal foil, and forms a foil laminated body. It is a perspective view which shows the state which connected three sets of foil laminated bodies in the cylinder shape. It is an enlarged view of the foil bearing of FIG. It is sectional drawing of the foil bearing of FIG. 1, and the circumferential direction is converted into a linear form and shown. It is a perspective view which shows the procedure which forms the foil laminated body which concerns on other embodiment. It is sectional drawing which shows a leaf type foil bearing. It is sectional drawing which shows a bump type foil bearing. It is a perspective view which shows a leaf type thrust foil bearing. FIG.
  • FIG. 10 is a sectional view taken along the line DD in FIG. 9. It is a perspective view of the composite foil which integrated the metal foil and the resin layer. It is a top view which shows the other example of a composite foil.
  • FIG. 13 is a cross-sectional view taken along line YY of the composite foil of FIG.
  • FIG. 1 shows a foil bearing 1 according to an embodiment of the present invention.
  • the foil bearing 1 supports a shaft 2 as a rotating member inserted in the inner periphery in the radial direction.
  • the foil bearing 1 includes a cylindrical foil holder 10 and a foil laminate 20 attached to the inner peripheral surface 10 a of the foil holder 10.
  • the rotation direction leading side of the shaft 2 that is, the downstream side in the fluid flow direction with respect to the foil laminate 20 when the shaft 2 rotates is referred to as “downstream side”.
  • the opposite side is called the “upstream side”.
  • the foil holder 10 is formed in a cylindrical shape with a metal such as a sintered metal or a molten material (for example, steel).
  • channel 10b used as the attachment part of the foil laminated body 20 is formed in the several places spaced apart in the circumferential direction among the internal peripheral surfaces 10a of the foil holder 10.
  • FIG. In the present embodiment, the axial groove 10 b is formed in the entire axial direction of the inner peripheral surface 10 a of the foil holder 10, and both axial ends are open to the end surface of the foil holder 10. If there is no problem in heat resistance and strength, the foil holder 10 may be formed of resin.
  • the foil laminate 20 includes a resin foil 21 that functions as a top foil portion having a bearing surface X, and a metal foil 22 that functions as a back foil portion that elastically supports the top foil portion from the back (outer diameter side). .
  • Resin foil 21 is a thin resin plate having flexibility.
  • the resin foil 21 is formed by processing a resin-made strip-like foil having a thickness of about 20 to 1000 ⁇ m into a predetermined shape by punching such as a press. Alternatively, the resin foil 21 may be formed by injection molding.
  • the material (base resin and filler) of the resin foil 21 is not particularly limited, and is determined according to the heat resistance and wear resistance required for the bearing surface X.
  • the base resin of the resin foil 21 either a crystalline resin or an amorphous resin can be used. Specifically, polyetheretherketone (PEEK) or polyamideimide (PAI) is used. it can.
  • the metal foil 22 is formed of a metal having a high spring property and good workability, such as a steel material or a copper alloy.
  • the metal foil 22 is formed by processing a metal foil having a thickness of about 20 ⁇ m to 200 ⁇ m into a predetermined shape by punching such as press working.
  • Typical examples of steel materials and copper alloys include carbon steel and brass.
  • carbon steel since there is no lubricating oil in the atmosphere and the antirust effect by the oil cannot be expected, corrosion due to rust is likely to occur. Further, brass may cause cracks due to processing strain (this tendency becomes stronger as the Zn content in brass increases). Therefore, it is preferable to use stainless steel or phosphor bronze as the strip-like foil.
  • the resin foil 21 includes a rectangular main body portion 21a having a bearing surface X, a downstream extending portion 21b extending downstream from the main body portion 21a, and an upstream extending upstream from the main body portion 21a. And a side extending portion 21c.
  • the downstream extending portions 21b are provided at a plurality of locations along the surface of the resin foil 21 and separated in a direction orthogonal to the rotation direction of the shaft 2 (in this embodiment, the axial direction). In this embodiment, the case where the downstream extension part 21b is formed in the axial direction both ends of the resin foil 21 is illustrated.
  • a concave portion 21d is provided between the downstream extending portions 21b in the axial direction.
  • the upstream extending portion 21c is formed by extending an axial intermediate portion of the upstream end portion of the main body portion 21a to the upstream side. In the illustrated example, the upstream-side extending portion 21c is provided within the range of the axial direction region of the recessed portion 21d.
  • the metal foil 22 has the same shape as the resin foil 21. As shown in FIG. 2, the metal foil 22 includes a rectangular main body 22a, a downstream extension 22b extending downstream from the main body 22a, and an upstream extension 22c extending upstream from the main body 22a. And have. A recess 22d is provided between the downstream extending portions 22b in the axial direction. Since the shape of each part of the metal foil 22 is the same as that of the resin foil 21, the description thereof is omitted.
  • the foil laminate 20 is formed by overlapping the resin foil 21 and the metal foil 22.
  • the foil laminate 20 includes a main body 20a composed of main bodies 21a and 22a of both foils 21 and 22, a 20b composed of downstream extending portions 21b and 22b of both foils 21 and 22, and both foils 21. , 22 upstream extending portions 21c, 22c, and upstream extending portions 20c.
  • a cylindrical temporary assembly as shown in FIG. 3 is formed by inserting the upstream extension 20c of each foil laminate 20 into the recess 20d between the downstream extensions 20b of the other foil laminates 20. Is done.
  • This temporary assembly is inserted into the inner periphery of the foil holder 10 from one side in the axial direction.
  • the downstream extending portion 20 b of each foil laminate 20 is inserted into the axial groove 10 b opened on one end surface of the foil holder 10. Insert from one axial side.
  • a plurality (three sets in the illustrated example) of the foil laminates 20 are attached to the inner peripheral surface 10a of the foil holder 10 in a state of being arranged in the circumferential direction.
  • the two adjacent foil laminates 20 cross each other.
  • the main body portion 20a of one foil laminate 20 forms the bearing surface X
  • the upstream extension portion 20c of the other foil laminate 20 is behind it.
  • the main body portion 20a of the other foil laminate 20 forms the bearing surface X
  • the downstream extension portion 20b of the one foil laminate 20 is provided. Wraps around and is inserted into the axial groove 10 b of the foil holder 10.
  • the bearing surface X is formed on the main body 21 a of the resin foil 21 disposed on the inner diameter side of the foil laminate 20.
  • the entire region of the bearing surface X facing the outer peripheral surface 2 a of the shaft 2 among the plurality of foil laminates 20 is formed by the main body portion 21 a of the resin foil 21.
  • each foil laminate 20 In the foil bearing 1, adjacent foil laminates 20 are engaged with each other in the circumferential direction and are stuck to each other. Thereby, the main-body part 20a of the foil laminated body 20 protrudes to the outer-diameter side, and curves in the shape along the inner peripheral surface 10a of the foil holder 10.
  • FIG. The movement of each foil laminate 20 to the downstream side is restricted because the downstream extension 20b of each foil laminate 20 hits the axial groove 10b, but the movement of each foil laminate 20 to the upstream side is restricted. Is not regulated. For this reason, each foil laminated body 20 can be minutely slid (reciprocated) in the circumferential direction with respect to the inner peripheral surface 10 a of the foil holder 10. Further, the resin foil 21 and each metal foil 22 of each foil laminate 20 are not fixed and are slidable with respect to each other.
  • the downstream extending portion 20 b of the foil laminate 20 inserted into the axial groove 10 b of the foil holder 10 is angled with respect to the tangential direction of the inner peripheral surface 10 a of the foil holder 10. Since it is slightly inclined by ⁇ , in the vicinity of the downstream extending portion 20b, the main body portion 20a tends to curve so as to protrude toward the inner diameter side. Further, the main body portion 20a rides on the upstream extension portion 20c of the other foil laminated body 20 so that it is away from the inner peripheral surface 10a of the foil holder 10 toward the downstream side (on the outer peripheral surface 2a of the shaft 2). It is in a state inclined to the approaching side. As described above, a wedge space that narrows toward the downstream side is formed between the bearing surface X of the main body portion 20 a of each foil laminate 20 and the outer peripheral surface 2 a of the shaft 2.
  • an annular bearing gap C (radial bearing gap) is formed between the bearing surface X of each foil laminate 20 and the shaft 2, and the shaft 2 is not in contact with the foil laminate 20. In this state, it is supported rotatably. At this time, the elastic force of the curved portion convex to the inner diameter side provided in the downstream region of the main body portion 20a of the foil laminate 20 or the elasticity of the portion riding on the upstream extension portion 20c of the other foil laminate 20 is provided.
  • the spring force in the radial direction is imparted to the bearing surface X by the force and, further, the elastic restoring force of the foil laminate 20 that attempts to return from the curved shape along the inner peripheral surface 10a of the foil holder 10 to the original shape. Due to the spring property of the bearing surface X, the width of the bearing gap C is automatically adjusted to an appropriate width according to operating conditions and the like, so that the rotation of the shaft 2 is stably supported. In the drawings, the width of the bearing gap C is exaggerated for easy understanding.
  • the resin foil 21 is formed by stamping or injection molding of a resin sheet, it can be formed thicker than a coating such as molybdenum disulfide applied to a metal foil (for example, 100 ⁇ m or more). ). Thereby, even when wear occurs due to contact sliding with the shaft 2, excellent slidability can be maintained over a long period of time. Further, since the resin foil 21 can be easily formed by punching or injection molding, it can be formed at a lower cost than a coating made of molybdenum disulfide or the like.
  • the resin foil 21 alone has a small rigidity, and particularly the static rigidity greatly decreases with the passage of time and the temperature. Therefore, the static rigidity of the bearing surface X is insufficient, and the bearing surface X has sufficient spring properties. May not be granted.
  • the resin foil 21 is elastically supported from behind by the metal foil 22, and in this embodiment, the entire region of the resin foil 21 is supported by the metal foil 22. Since a metal has a very small change in static stiffness over time and temperature compared to a resin, the resin foil 21 is elastically supported by the metal foil 22 so that sufficient spring property is imparted to the bearing surface X.
  • the bearing surface X is provided with sufficient spring properties, and the bearing gap C
  • the entire region of the main body 21 a forming the bearing surface X in the resin foil 21 is contact-supported by the metal foil 22 as in the present embodiment.
  • the resin foil 21 and the metal foil 22 are both attached to the axial groove 10b of the foil holder 10.
  • the present invention is not limited thereto, and for example, the metal foil 22 is attached to the foil holder 10 and the metal foil 22 is attached. You may attach the resin foil 21 to.
  • the metal foil 22 is attached to the axial groove 10 b of the foil holder 10, and the protrusions 21 e provided at both ends in the circumferential direction of the resin foil 21 in the slits 22 e provided in the metal foil 22. By connecting the two, they are combined.
  • a part (circumferential intermediate portion) of the main body portion 22 a of the metal foil 22 is covered with the resin foil 21. In this case, it is preferable to cover the region including the portion P (see FIG. 5) of the metal foil 22 that is closest to the shaft 2 when the shaft 2 rotates with the resin foil 21.
  • the foil bearing 1 includes a plurality of foil laminates 20 having a downstream end as a free end and an upstream end as a fixed end.
  • the foil laminate 20 includes a resin foil 21 having a bearing surface X and a metal foil 22 that supports the resin foil 21 from behind. Also in this case, the frictional wear characteristic of the bearing surface X is carried by the resin foil 21 and the spring property of the bearing surface X is carried by the metal foil 22 as in the above embodiment.
  • the present invention can also be applied to the so-called bump type foil bearing 1 shown in FIG.
  • the foil bearing 1 includes a cylindrical resin foil 21 and a corrugated metal foil 22.
  • the frictional wear characteristic of the bearing surface X is carried by the resin foil 21 and the spring property of the bearing surface X is carried by the metal foil 22 as in the above embodiment.
  • the resin foil 21 since the resin foil 21 is contact-supported at a plurality of locations in the circumferential direction by the corrugated metal foil 22, if the static rigidity is too small, the resin foil 21 is deformed into a corrugated shape. Therefore, in this embodiment, the resin foil 21 needs to have a static rigidity enough to maintain the cylindrical surface shape.
  • a metal foil having the same shape as that of the cylindrical resin foil 21 shown in FIG. 8 may be placed in an overlapping manner, and a corrugated metal foil may be provided on the outer diameter side thereof.
  • the resin foil 21 can be formed of a material with low rigidity, and the range of selection of the material of the resin foil 21 is widened.
  • FIG. 9 shows a leaf type thrust foil bearing as an example of the thrust foil bearing 3.
  • a plurality of foil laminates 20 are attached to the end surface of the disc-shaped foil holder 10 side by side in the circumferential direction.
  • the downstream end of each foil laminate 20 is overlaid on the upstream end of another foil laminate 20.
  • Each foil laminate 20 includes a resin foil 21 having a bearing surface X and a metal foil 22 that supports the resin foil 21 from behind. Also in this case, the frictional wear characteristic of the bearing surface X is carried by the resin foil 21 and the spring property of the bearing surface X is carried by the metal foil 22 as in the above embodiment.
  • the resin top foil part (resin foil 21) and the metal back foil part (metal foil 22) are formed separately, but the present invention is not limited thereto.
  • a composite foil 30 as shown in FIG. 11 may be provided in place of the foil laminate 20.
  • the composite foil 30 integrally includes a metal foil 22 and a resin layer 31 provided on the surface of the metal foil 22.
  • the resin layer 31 functions as a top foil portion having the bearing surface X
  • the metal foil 22 functions as a back foil portion that elastically supports the resin layer 31 from behind.
  • the resin layer 31 is provided on part or all of the surface of the metal foil 22.
  • the resin layer 31 is provided in a part (axial direction intermediate part) of the main-body part 22a of the metal foil 22.
  • the resin layer 31 is formed, for example, by injection molding with resin using the metal foil 22 as an insert part. Thereby, the fixing force (adhesion force) between the resin layer 31 and the metal foil 22 can be increased. As shown in FIG. 12, if a hole 22f (or notch) is provided in the metal foil 22 and a part of the resin layer 31 is inserted into the hole 22f, the fixing force between the resin layer 31 and the metal foil 22 is increased. It can be further increased.
  • the resin foil 21 and the metal foil 22 may be formed separately and adhered to each other by bonding or the like in a state where they are stacked in the thickness direction.
  • each foil bearing of the present embodiment is an air dynamic pressure bearing using air as a pressure generating fluid, but is not limited thereto, and other gases can be used as the pressure generating fluid, or water or oil It is also possible to use a liquid such as

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Support Of The Bearing (AREA)
  • Sliding-Contact Bearings (AREA)

Abstract

L'invention concerne un palier à feuilles 1 qui comprend une section de feuille supérieure de résine (feuille de résine 21) présentant une surface d'appui X, et une section de feuille inférieure métallique (feuille métallique 22) pour porter élastiquement la section de feuille supérieure depuis l'arrière.
PCT/JP2017/039140 2016-11-30 2017-10-30 Palier à feuilles Ceased WO2018100949A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016233180A JP2018091365A (ja) 2016-11-30 2016-11-30 フォイル軸受
JP2016-233180 2016-11-30

Publications (1)

Publication Number Publication Date
WO2018100949A1 true WO2018100949A1 (fr) 2018-06-07

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JP (1) JP2018091365A (fr)
WO (1) WO2018100949A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021037411A1 (fr) * 2019-08-28 2021-03-04 Robert Bosch Gmbh Film pour palier à film
JP2022157572A (ja) * 2021-03-31 2022-10-14 株式会社豊田自動織機 フォイル軸受、及びフォイル軸受ユニット

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7523087B2 (ja) 2020-02-20 2024-07-26 パナソニックＩｐマネジメント株式会社 軸受構造
US11686218B2 (en) 2020-08-21 2023-06-27 Pratt & Whitney Canada Corp. Pressure seal assembly

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6184416A (ja) * 1984-10-01 1986-04-30 ザ　ギヤレツト　コーポレーシヨン スラスト軸受デイスク並びにこれを用いた流体スラスト軸受
JPH03163213A (ja) * 1989-11-17 1991-07-15 Matsushita Electric Ind Co Ltd 動圧型エア軸受装置
JP2002098135A (ja) * 2000-09-20 2002-04-05 Koyo Seiko Co Ltd スラスト動圧軸受
JP2003056561A (ja) * 2001-08-20 2003-02-26 Mitsubishi Heavy Ind Ltd フォイルガス軸受
JP2004190762A (ja) * 2002-12-10 2004-07-08 Koyo Seiko Co Ltd ラジアルフォイル軸受用フォイルおよびそれを用いたラジアルフォイル軸受
JP2006177542A (ja) * 2004-12-21 2006-07-06 Shigeto Matsuo スプリングフォイル軸受
JP2015113927A (ja) * 2013-12-12 2015-06-22 Ntn株式会社 フォイル軸受と、これを有するフォイル軸受ユニット及びターボ機械

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6184416A (ja) * 1984-10-01 1986-04-30 ザ　ギヤレツト　コーポレーシヨン スラスト軸受デイスク並びにこれを用いた流体スラスト軸受
JPH03163213A (ja) * 1989-11-17 1991-07-15 Matsushita Electric Ind Co Ltd 動圧型エア軸受装置
JP2002098135A (ja) * 2000-09-20 2002-04-05 Koyo Seiko Co Ltd スラスト動圧軸受
JP2003056561A (ja) * 2001-08-20 2003-02-26 Mitsubishi Heavy Ind Ltd フォイルガス軸受
JP2004190762A (ja) * 2002-12-10 2004-07-08 Koyo Seiko Co Ltd ラジアルフォイル軸受用フォイルおよびそれを用いたラジアルフォイル軸受
JP2006177542A (ja) * 2004-12-21 2006-07-06 Shigeto Matsuo スプリングフォイル軸受
JP2015113927A (ja) * 2013-12-12 2015-06-22 Ntn株式会社 フォイル軸受と、これを有するフォイル軸受ユニット及びターボ機械

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021037411A1 (fr) * 2019-08-28 2021-03-04 Robert Bosch Gmbh Film pour palier à film
JP2022157572A (ja) * 2021-03-31 2022-10-14 株式会社豊田自動織機 フォイル軸受、及びフォイル軸受ユニット

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