JP6527902B2 - 軸受 - Google Patents
軸受 Download PDFInfo
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- JP6527902B2 JP6527902B2 JP2017074873A JP2017074873A JP6527902B2 JP 6527902 B2 JP6527902 B2 JP 6527902B2 JP 2017074873 A JP2017074873 A JP 2017074873A JP 2017074873 A JP2017074873 A JP 2017074873A JP 6527902 B2 JP6527902 B2 JP 6527902B2
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- bearing
- bearing pad
- column
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- fluid damper
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- 239000012530 fluid Substances 0.000 claims description 77
- 238000004891 communication Methods 0.000 claims description 14
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- 239000011435 rock Substances 0.000 claims description 5
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- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 37
- 239000000567 combustion gas Substances 0.000 description 12
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 9
- 239000000872 buffer Substances 0.000 description 8
- 238000002485 combustion reaction Methods 0.000 description 8
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
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- 230000009467 reduction Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- -1 carbon graphite Chemical compound 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000001141 propulsive effect Effects 0.000 description 1
- 238000000110 selective laser sintering Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012546 transfer 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
- 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
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
- F16C33/1005—Construction relative to lubrication with gas, e.g. air, as lubricant
- F16C33/101—Details of the bearing surface, e.g. means to generate pressure such as lobes or wedges
- F16C33/1015—Pressure generating grooves
-
- 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
- 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
- F01D25/162—Bearing supports
- F01D25/164—Flexible supports; Vibration damping means associated with the bearing
-
- 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
- F01D25/166—Sliding contact bearing
-
- 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
-
- 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
- F16C17/03—Sliding-contact bearings for exclusively rotary movement for radial load only with tiltably-supported segments, e.g. Michell bearings
- F16C17/035—Sliding-contact bearings for exclusively rotary movement for radial load only with tiltably-supported segments, e.g. Michell bearings the segments being integrally formed with, or rigidly fixed to, a support-element
-
- 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
-
- 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
- F16C32/0614—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 supplied under pressure, e.g. aerostatic bearings
- F16C32/0622—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 supplied under pressure, e.g. aerostatic bearings via nozzles, restrictors
-
- 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
- F16C32/0614—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 supplied under pressure, e.g. aerostatic bearings
- F16C32/0625—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 supplied under pressure, e.g. aerostatic bearings via supply slits
-
- 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
- F16C32/0662—Details of hydrostatic bearings independent of fluid supply or direction of load
- F16C32/0666—Details of hydrostatic bearings independent of fluid supply or direction of load of bearing pads
-
- 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
- F16C32/0662—Details of hydrostatic bearings independent of fluid supply or direction of load
- F16C32/0677—Details of hydrostatic bearings independent of fluid supply or direction of load of elastic or yielding bearings or bearing supports
-
- 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
- F16C33/043—Sliding surface consisting mainly of ceramics, cermets or hard carbon, e.g. diamond like carbon [DLC]
-
- 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
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
- F16C33/1005—Construction relative to lubrication with gas, e.g. air, as lubricant
-
- 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
- F16C43/00—Assembling bearings
- F16C43/02—Assembling sliding-contact 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
-
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
- F16F15/0237—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means involving squeeze-film damping
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/60—Efficient propulsion technologies, e.g. for aircraft
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Fluid Mechanics (AREA)
- Ceramic Engineering (AREA)
- Combustion & Propulsion (AREA)
- Sliding-Contact Bearings (AREA)
- Support Of The Bearing (AREA)
Description
[実施態様1]
軸方向(A2)及び半径方向(R2)を有する軸受(100)であって、
外周部(132)を有する、回転構成要素(148)を支持するための軸受パッド(106)、及び
軸受パッド(106)に取り付けられるか、又は軸受パッド(106)と一体的に形成されるハウジング(110)であって、該ハウジング(110)が、軸受パッド(106)に向かって延在する、軸受パッド(106)に空気流を供給するための可撓性コラム(116)を備え、該コラム(116)が、軸方向(A2)に沿って軸受パッド(106)の外周部(132)の内側の位置から軸受パッド(106)を支持し、このため、外周部(132)の、半径方向(R2)に沿った軸受パッド(106)の抵抗が、コラム(116)の近傍の、半径方向(R2)に沿った軸受パッド(106)の抵抗よりも小さいハウジング(110)
を備える軸受(100)。
[実施態様2]
軸受(100)が、中心軸線(102)を有し、回転構成要素(148)が、中心軸線(150)を有し、可撓性コラム(116)が、軸受(100)の中心軸線(102)に対する回転構成要素(148)の中心軸線(150)の位置ずれを吸収するために揺動するように構成される、実施態様1に記載の軸受(100)。
[実施態様3]
コラム(116)が、軸受パッド(106)に空気流を供給するための内側通路(142)を画成する二重壁コラムである、実施態様1に記載の軸受(100)。
[実施態様4]
ハウジング(110)が、第1の流体ダンパキャビティ(124)及び該第1の流体ダンパキャビティ(124)から離間される第2の流体ダンパキャビティ(126)を画成し、第1の流体ダンパキャビティ(124)が、コラム(116)を介して第2の流体ダンパキャビティ(126)と流れ連通する、実施態様1に記載の軸受(100)。
[実施態様5]
コラム(116)が、内側通路(142)及び外側通路(144)を画成し、第1の流体ダンパキャビティ(124)が、外側通路(144)を介して第2の流体ダンパキャビティ(126)と流れ連通する、実施態様4に記載の軸受(100)。
[実施態様6]
外側通路(144)が、内側通路(142)と同心である、実施態様5に記載の軸受(100)。
[実施態様7]
外側通路(144)が、第1の流体ダンパキャビティ(124)が第2の流体ダンパキャビティ(126)と制限的に流れ連通するように隙間として構成される、実施態様5に記載の軸受(100)。
[実施態様8]
軸受パッド(106)が、軸方向(A2)において中心(118)を有し、コラム(116)が、軸方向(A2)の、軸受パッド(106)のほぼ中心(118)に配置される、実施態様1に記載の軸受(100)。
[実施態様9]
軸受(100)が、周方向(C2)を有し、軸受パッド(106)が、周方向(C2)において中心(118)を有し、コラム(116)が、周方向(C2)の、軸受パッド(106)のほぼ中心(118)に配置される、実施態様1に記載の軸受(100)。
[実施態様10]
軸受パッド(106)が、内側表面(108)を備え、内側表面(108)が、コラム(116)と空気流連通する1つ以上の開口(120)を有する、実施態様1に記載の軸受(100)。
[実施態様11]
軸受パッド(106)及びハウジング(110)が、単一の連続材料から一体的に形成される、実施態様1に記載の軸受(100)。
[実施態様12]
軸受パッド(106)及びハウジング(110)が、付加製造工程を使用して形成される、実施態様11に記載の軸受(100)。
[実施態様13]
回転構成要素(148)を備えるガスタービンエンジン(12)用の軸受(100)であって、
ガスタービンエンジン(12)の回転構成要素(148)を支持するための軸受パッド(106)であって、外周部(132)を有する軸受パッド(106)、及び
軸受パッド(106)に取り付けられるか、又は軸受パッド(106)と一体的に形成される内側壁(130)を備えるハウジング(110)であって、内側壁(130)が、少なくとも部分的に可撓性コラム(116)を形成し、該可撓性コラム(116)が、軸受パッド(106)の外周部(132)の内側の位置から軸受パッド(106)を支持し、軸受パッド(106)に空気流を供給するための通路を画成するハウジング(110)
を備える軸受(100)。
[実施態様14]
コラム(116)が、軸受パッド(106)の外周部(132)の内側の位置から軸受パッド(106)を完全に支持し、このため、外周部(132)の、半径方向(R2)に沿った軸受パッド(106)の抵抗が、コラム(116)の近傍の、半径方向(R2)に沿った軸受パッド(106)の抵抗よりも小さい、実施態様13に記載の軸受(100)。
[実施態様15]
軸受(100)が、中心軸線(102)を有し、回転構成要素(148)が、中心軸線(150)を有し、可撓性コラム(116)が、軸受(100)の中心軸線(102)に対する回転構成要素(148)の中心軸線(150)の位置ずれを吸収するために揺動するように構成される、実施態様13に記載の軸受(100)。
[実施態様16]
軸受(100)が、軸方向(A2)及び周方向(C2)を有し、軸受パッド(106)が、軸方向(A2)及び周方向(C2)において中心(118)を有し、コラム(116)が、軸方向(A2)及び周方向(C2)の、軸受パッド(106)のほぼ中心(118)に配置される、実施態様13に記載の軸受(100)。
[実施態様17]
内側壁(130)が、蛇行した内側壁であり、ハウジング(110)が、蛇行した外側壁をさらに備え、該蛇行した外側壁が、軸受パッド(106)に取り付けられるか、又は軸受パッド(106)と一体的に形成され、少なくとも部分的に第1の流体ダンパキャビティ(124)を画成し、蛇行した外側壁及び蛇行した内側壁が一緒に、第2の流体ダンパキャビティ(126)を少なくとも部分的に画成する、実施態様13に記載の軸受(100)。
[実施態様18]
蛇行した外側壁もまた、少なくとも部分的に可撓性コラム(116)を形成し、第1の流体ダンパキャビティ(124)が、コラム(116)を介して第2の流体ダンパキャビティ(126)と流れ連通する、実施態様17に記載の軸受(100)。
[実施態様19]
蛇行した内側壁によって画成される通路が、内側通路(142)であり、蛇行した外側壁及び蛇行した内側壁が、一緒にコラム(116)を形成し、一緒に外側通路(144)を画成し、第1の流体ダンパキャビティ(124)が、外側通路(144)を介して第2の流体ダンパキャビティ(126)と流れ連通する、実施態様17に記載の軸受(100)。
[実施態様20]
外側通路(144)が、内側通路(142)と同心である、実施態様19に記載の軸受(100)。
13 長手方向中心線、軸方向中心線
14 ファンセクション
16 コアタービンエンジン
18 外側ケーシング
20 環状入口
22 低圧(LP)圧縮機
24 高圧(HP)圧縮機
26 燃焼セクション
28 高圧(HP)タービン
30 低圧(LP)タービン
32 ジェット排気ノズルセクション
34 高圧(HP)シャフト、スプール
36 低圧(LP)シャフト、スプール
38 ファン
40 ファンブレード
42 ディスク
44 駆動部材、ピッチ変更機構
46 パワーギヤボックス
48 ナセル、前方ハブ
50 ファンケーシング、外側ナセル
52 出口ガイドベーン
54 下流セクション
56 バイパス空気流通路
58 空気
60 入口
62 空気の第1の部分
64 空気の第2の部分
66 燃焼ガス
68 HPタービンステータベーン
70 HPタービンロータブレード
72 LPタービンステータベーン
74 LPタービンロータブレード
76 ファンノズル排気セクション
78 高温ガス通路
100 軸受アセンブリ
102 中心軸線
104 軸方向開口
106 軸受パッド
108 内側表面
110 ハウジング
112 ガス入口
114 供給通路
116 可撓性コラム、二重壁コラム
118 パッドの中心
120 ガス分配孔
122 軸受セクション
124 第1の流体ダンパキャビティ
126 第2の流体ダンパキャビティ
128 第1の外側壁
130 第2の内側壁
132 外周部
134 ハウジングの本体
136 外側壁の半硬質部分
138 外側壁の硬質部分
140 内側壁の半硬質部分
142 内側通路
144 外側通路
146 緩衝流体供給口、ダンパキャビティ供給口
148 回転構成要素
150 回転構成要素の中心軸線
200 ノズル
202 ガイドベーン
204 外側リング
Claims (14)
- 軸方向(A2)及び半径方向(R2)を有する軸受(100)であって、
外周部(132)を有する、回転構成要素(148)を支持するための軸受パッド(106)と、
軸受パッド(106)に取り付けられるか、又は軸受パッド(106)と一体的に形成されるハウジング(110)であって、該ハウジング(110)が、軸受パッド(106)に向かって延在する、軸受パッド(106)に空気流を供給するための可撓性コラム(116)を備え、該コラム(116)が、軸方向(A2)に沿って軸受パッド(106)の外周部(132)の内側の位置から軸受パッド(106)を支持し、このため、外周部(132)の、半径方向(R2)に沿った軸受パッド(106)の抵抗が、コラム(116)の近傍の、半径方向(R2)に沿った軸受パッド(106)の抵抗よりも小さいハウジング(110)と
を備え、
ハウジング(110)が、第1の流体ダンパキャビティ(124)及び該第1の流体ダンパキャビティ(124)から離間される第2の流体ダンパキャビティ(126)を画成し、第1の流体ダンパキャビティ(124)が、コラム(116)を介して第2の流体ダンパキャビティ(126)と流れ連通する、軸受(100)。 - 軸受(100)が、中心軸線(102)を有し、回転構成要素(148)が、中心軸線(150)を有し、可撓性コラム(116)が、軸受(100)の中心軸線(102)に対する回転構成要素(148)の中心軸線(150)の位置ずれを吸収するために揺動するように構成される、請求項1に記載の軸受(100)。
- コラム(116)が、軸受パッド(106)に空気流を供給するための内側通路(142)を画成する二重壁コラムである、請求項1に記載の軸受(100)。
- コラム(116)が、内側通路(142)及び外側通路(144)を画成し、第1の流体ダンパキャビティ(124)が、外側通路(144)を介して第2の流体ダンパキャビティ(126)と流れ連通する、請求項1に記載の軸受(100)。
- 外側通路(144)が、内側通路(142)と同心である、請求項4に記載の軸受(100)。
- 外側通路(144)が、第1の流体ダンパキャビティ(124)が第2の流体ダンパキャビティ(126)と制限的に流れ連通するように隙間として構成される、請求項4に記載の軸受(100)。
- 軸受パッド(106)が、軸方向(A2)において中心(118)を有し、コラム(116)が、軸方向(A2)の、軸受パッド(106)のほぼ中心(118)に配置される、請求項1に記載の軸受(100)。
- 軸受(100)が、周方向(C2)を有し、軸受パッド(106)が、周方向(C2)において中心(118)を有し、コラム(116)が、周方向(C2)の、軸受パッド(106)のほぼ中心(118)に配置される、請求項1に記載の軸受(100)。
- 軸受パッド(106)が、内側表面(108)を備え、内側表面(108)が、コラム(116)と空気流連通する1つ以上の開口(120)を有する、請求項1に記載の軸受(100)。
- 軸受パッド(106)及びハウジング(110)が、単一の連続材料から一体的に形成される、請求項1に記載の軸受(100)。
- 軸受パッド(106)及びハウジング(110)が、付加製造工程を使用して形成される、請求項10に記載の軸受(100)。
- 回転構成要素(148)を備えるガスタービンエンジン(12)用の軸受(100)であって、
ガスタービンエンジン(12)の回転構成要素(148)を支持するための軸受パッド(106)であって、外周部(132)を有する軸受パッド(106)と、
軸受パッド(106)に取り付けられるか、又は軸受パッド(106)と一体的に形成される内側壁(130)を備えるハウジング(110)であって、内側壁(130)が、少なくとも部分的に可撓性コラム(116)を形成し、該可撓性コラム(116)が、軸受パッド(106)の外周部(132)の内側の位置から軸受パッド(106)を支持し、軸受パッド(106)に空気流を供給するための通路を画成するハウジング(110)と
を備え、
ハウジング(110)が、第1の流体ダンパキャビティ(124)及び該第1の流体ダンパキャビティ(124)から離間される第2の流体ダンパキャビティ(126)を画成し、第1の流体ダンパキャビティ(124)が、コラム(116)を介して第2の流体ダンパキャビティ(126)と流れ連通する、軸受(100)。 - コラム(116)が、軸受パッド(106)の外周部(132)の内側の位置から軸受パッド(106)を完全に支持し、このため、外周部(132)の、半径方向(R2)に沿った軸受パッド(106)の抵抗が、コラム(116)の近傍の、半径方向(R2)に沿った軸受パッド(106)の抵抗よりも小さい、請求項12に記載の軸受(100)。
- 軸受(100)が、中心軸線(102)を有し、回転構成要素(148)が、中心軸線(150)を有し、可撓性コラム(116)が、軸受(100)の中心軸線(102)に対する回転構成要素(148)の中心軸線(150)の位置ずれを吸収するために揺動するように構成される、請求項12に記載の軸受(100)。
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CN107304713B (zh) | 2019-12-10 |
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US20170298988A1 (en) | 2017-10-19 |
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