JP5492308B2 - モータ式燃料噴射ポンプ用焼結軸受 - Google Patents
モータ式燃料噴射ポンプ用焼結軸受 Download PDFInfo
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- JP5492308B2 JP5492308B2 JP2012542913A JP2012542913A JP5492308B2 JP 5492308 B2 JP5492308 B2 JP 5492308B2 JP 2012542913 A JP2012542913 A JP 2012542913A JP 2012542913 A JP2012542913 A JP 2012542913A JP 5492308 B2 JP5492308 B2 JP 5492308B2
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- 239000000446 fuel Substances 0.000 title claims description 22
- 238000002347 injection Methods 0.000 title claims description 15
- 239000007924 injection Substances 0.000 title claims description 15
- 229910019326 Sn—Cu—P Inorganic materials 0.000 claims description 22
- 229910052759 nickel Inorganic materials 0.000 claims description 19
- 229910052698 phosphorus Inorganic materials 0.000 claims description 18
- 229910052718 tin Inorganic materials 0.000 claims description 13
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 5
- 230000007797 corrosion Effects 0.000 description 16
- 238000005260 corrosion Methods 0.000 description 16
- 150000007524 organic acids Chemical class 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 9
- 238000000635 electron micrograph Methods 0.000 description 8
- 239000000843 powder Substances 0.000 description 8
- 239000000203 mixture Substances 0.000 description 7
- 229910045601 alloy Inorganic materials 0.000 description 6
- 239000000956 alloy Substances 0.000 description 6
- 229910000905 alloy phase Inorganic materials 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000005245 sintering Methods 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 238000010894 electron beam technology Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 235000005985 organic acids Nutrition 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000012085 test solution Substances 0.000 description 3
- 229910002482 Cu–Ni Inorganic materials 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Chemical group 0.000 description 1
- 229910009038 Sn—P Inorganic materials 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 229930195733 hydrocarbon Chemical group 0.000 description 1
- 150000002430 hydrocarbons Chemical group 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
- C22C9/06—Alloys based on copper with nickel or cobalt as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/0425—Copper-based alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
- C22C9/02—Alloys based on copper with tin as the next major constituent
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/02—Selection of particular materials
- F04D29/026—Selection of particular materials especially adapted for liquid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
- F04D29/047—Bearings hydrostatic; hydrodynamic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D5/00—Pumps with circumferential or transverse flow
- F04D5/002—Regenerative pumps
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- 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
- F16C33/12—Structural composition; Use of special materials or surface treatments, e.g. for rust-proofing
-
- 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
- F16C33/12—Structural composition; Use of special materials or surface treatments, e.g. for rust-proofing
- F16C33/128—Porous bearings, e.g. bushes of sintered alloy
-
- 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
- F16C33/14—Special methods of manufacture; Running-in
- F16C33/145—Special methods of manufacture; Running-in of sintered porous bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2230/00—Manufacture
- F05D2230/20—Manufacture essentially without removing material
- F05D2230/22—Manufacture essentially without removing material by sintering
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/10—Metals, alloys or intermetallic compounds
- F05D2300/17—Alloys
- F05D2300/172—Copper alloys
- F05D2300/1723—Nickel-Copper alloy, e.g. Monel
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- 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
- F16C2202/00—Solid materials defined by their properties
- F16C2202/02—Mechanical properties
- F16C2202/10—Porosity
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- 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
- F16C2204/00—Metallic materials; Alloys
- F16C2204/10—Alloys based on copper
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Powder Metallurgy (AREA)
- Sliding-Contact Bearings (AREA)
Description
Niは、焼結によりSn、Cu、Pとともに粒界にNi−Sn−Cu−P相を形成して、軸受に優れた耐食性を付与する。Ni含有量が10%未満では粒界相が十分形成されず、所望の耐食性が得られない。一方、Ni含有量が20%を超えても耐食性向上の効果が少なく、原料コストが高くなるため好ましくない。
Pは、圧粉体の焼結性を向上させ、素地の強度を向上させる。P含有量が0.1%未満では素地の強度向上に効果が少ない。一方、P含有量が0.8%を越えると焼結時の寸法変化が大きくなり、寸法精度が低下するため好ましくない。
Snは、焼結によりNi、Sn、Pとともに粒界にNi−Sn−Cu−P相を形成して、軸受に優れた耐食性を付与する。Sn含有量が5%未満では粒界相が十分形成されず、所望の耐食性が得られない。一方、Sn含有量が13%を超えると焼結時の寸法変化が大きくなり、寸法精度が低下するため好ましくない。
Cは黒鉛に由来するものである。Cは、主に、素地中に分散している気孔内に遊離黒鉛として存在し、軸受に優れた潤滑性を付与し、耐摩耗性を向上させる。C含有量が1%未満では所望の効果が得られない。一方、C含有量が6%を越えても耐摩耗性向上の効果が少なく、軸受の強度が低下するため好ましくない。
気孔は素地に分散し、液体燃料の高圧高速流通下で軸受が受ける強い摩擦を緩和し、軸受けの摩耗を抑制する効果がある。気孔率が8%未満ではその効果が十分でない。一方、気孔率が18%を超えると強度が著しく低下するので好ましくない。
素地の粒界に形成された、質量%で30%以上のSnを含有するNi−Sn−Cu−P相は、有機酸を含む粗悪ガソリン中における優れた耐食性を付与する。
原料粉末として、いずれも粒径100メッシュの、Cu−30質量%Ni粉、Cu−25質量%Ni粉、Cu−15質量%Ni粉、Cu−8質量%P粉、Sn粉、黒鉛粉末、Cu粉末を用意した。これらの原料粉末を表1に示す組成になるように配合し、ステアリン酸を0.5質量%添加してV型混合機にて20分混合した後、所定の圧力でプレス成形して圧粉体を製作した。この圧粉体を、天然ガスと空気を混合し、加熱した触媒に通すことで分解変成させたエンドサーミックガス(吸熱型ガス)雰囲気中で、840〜940℃範囲内の所定の温度で焼結し、続いてサイジングを行った。以上の工程により、外径:10mm×内径:5mm×高さ:5mmの寸法を有し、表1に示す組成成分の本発明軸受(以下、本発明例という)、及び比較としてNi含有量が10%未満の比較軸受(以下、比較例という)を製作した。
上記の本発明例と比較例の軸受について、ガソリンが狭い空間を高速で流通し、これを生起せしめるモータの高速回転によって軸受が高圧を受け、かつ速い流速のガソリンに曝される条件で耐摩耗試験を行った。
上記の本発明例と比較例の軸受について耐食試験を行った。
本発明例7の合金について、電子線マイクロアナライザー(EPMA)を用いて、Ni−Sn−Cu−P合金相のCu、Ni、Sn、Pを分析した。分析条件は、加速電圧15kV、ビーム径をφ1μmに設定し、一例として図1の電子顕微鏡写真(COMPO像)に示すように、Ni−Sn−Cu−P合金相の中央部分を分析した。そして、異なるNi−Sn−Cu−P合金相を5箇所測定して平均値を算出した。その結果を表2に示す。
Claims (2)
- 質量%で、10〜20%のNiと、5〜13%のSnと、0.1〜0.8%のPと、1〜6%のCとを含有し、残部がCu及び不可避不純物からなるとともに、粒界に質量%で30%以上のSnを含有するNi−Sn−Cu−P相が形成され、かつ、8〜18%の気孔率を有することを特徴とするモータ式燃料噴射ポンプ用焼結軸受。
- 前記Ni−Sn−Cu−P相は、質量%で、30〜49%のNiと、10〜30%のCuと、0.5〜1.5%のPとを含有し、残部がSn及び不可避不純物からなることを特徴とする請求項1記載のモータ式燃料噴射ポンプ用焼結軸受。
Priority Applications (1)
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JP2012542913A JP5492308B2 (ja) | 2010-11-10 | 2011-11-07 | モータ式燃料噴射ポンプ用焼結軸受 |
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JP2010251547 | 2010-11-10 | ||
JP2010251547 | 2010-11-10 | ||
JP2012542913A JP5492308B2 (ja) | 2010-11-10 | 2011-11-07 | モータ式燃料噴射ポンプ用焼結軸受 |
PCT/JP2011/075621 WO2012063785A1 (ja) | 2010-11-10 | 2011-11-07 | モータ式燃料噴射ポンプ用焼結軸受 |
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JPWO2012063785A1 JPWO2012063785A1 (ja) | 2014-05-12 |
JP5492308B2 true JP5492308B2 (ja) | 2014-05-14 |
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Country Status (8)
Country | Link |
---|---|
US (1) | US8999232B2 (ja) |
EP (1) | EP2639322B1 (ja) |
JP (1) | JP5492308B2 (ja) |
KR (1) | KR101849809B1 (ja) |
CN (1) | CN103201398B (ja) |
BR (1) | BR112013009530B1 (ja) |
MY (1) | MY161282A (ja) |
WO (1) | WO2012063785A1 (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
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JP5755599B2 (ja) * | 2012-05-15 | 2015-07-29 | 株式会社ダイヤメット | 耐食性、耐摩耗性及びなじみ性に優れたモータ式燃料ポンプ用焼結軸受 |
JP5984633B2 (ja) | 2012-11-16 | 2016-09-06 | 大同メタル工業株式会社 | 複層摺動部材 |
JP6440297B2 (ja) * | 2014-09-04 | 2018-12-19 | 株式会社ダイヤメット | Cu基焼結軸受 |
JP6468766B2 (ja) | 2014-09-11 | 2019-02-13 | 株式会社ダイヤメット | 耐食性、耐熱性、耐摩耗性に優れた焼結摺動材及びその製造方法 |
JP6620391B2 (ja) | 2016-03-04 | 2019-12-18 | 株式会社ダイヤメット | Cu基焼結摺動材およびその製造方法 |
JP6609852B2 (ja) * | 2016-03-04 | 2019-11-27 | 株式会社ダイヤメット | 耐食性、耐熱性、耐摩耗性に優れた焼結摺動材及びその製造方法 |
JP6769007B2 (ja) | 2017-06-29 | 2020-10-14 | 株式会社ダイヤメット | モータ式燃料ポンプ用焼結軸受及びその製造方法 |
Citations (1)
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JP2006063398A (ja) * | 2004-08-27 | 2006-03-09 | Mitsubishi Materials Corp | 高強度を示しかつ高温環境下ですぐれた耐摩耗性を示すEGR式内燃機関の再循環排ガス流量制御弁などの焼結Cu合金製軸受 |
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JP2004324712A (ja) * | 2003-04-23 | 2004-11-18 | Mitsubishi Materials Corp | モータ式燃料ポンプの耐摩耗性軸受 |
JP4521871B2 (ja) * | 2005-01-18 | 2010-08-11 | 株式会社ダイヤメット | 耐食性、耐摩耗性および高強度を有するモータ式燃料ポンプの軸受 |
JP5371182B2 (ja) * | 2006-06-27 | 2013-12-18 | 株式会社ダイヤメット | 耐摩擦摩耗性に優れたCu−Ni−Sn系銅基焼結合金およびその合金からなる軸受材 |
JP5363031B2 (ja) * | 2008-05-29 | 2013-12-11 | 日精樹脂工業株式会社 | 射出成形機の関節部構造 |
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- 2011-11-07 MY MYPI2013700625A patent/MY161282A/en unknown
- 2011-11-07 KR KR1020137010354A patent/KR101849809B1/ko active IP Right Grant
- 2011-11-07 US US13/876,084 patent/US8999232B2/en active Active
- 2011-11-07 CN CN201180054205.2A patent/CN103201398B/zh active Active
- 2011-11-07 WO PCT/JP2011/075621 patent/WO2012063785A1/ja active Application Filing
- 2011-11-07 BR BR112013009530-0A patent/BR112013009530B1/pt active IP Right Grant
- 2011-11-07 EP EP11840331.0A patent/EP2639322B1/en active Active
- 2011-11-07 JP JP2012542913A patent/JP5492308B2/ja active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006063398A (ja) * | 2004-08-27 | 2006-03-09 | Mitsubishi Materials Corp | 高強度を示しかつ高温環境下ですぐれた耐摩耗性を示すEGR式内燃機関の再循環排ガス流量制御弁などの焼結Cu合金製軸受 |
Also Published As
Publication number | Publication date |
---|---|
KR101849809B1 (ko) | 2018-04-17 |
US20130189150A1 (en) | 2013-07-25 |
KR20140001876A (ko) | 2014-01-07 |
BR112013009530A2 (pt) | 2016-07-12 |
CN103201398B (zh) | 2016-01-20 |
CN103201398A (zh) | 2013-07-10 |
EP2639322A1 (en) | 2013-09-18 |
BR112013009530B1 (pt) | 2019-04-24 |
WO2012063785A1 (ja) | 2012-05-18 |
MY161282A (en) | 2017-04-14 |
JPWO2012063785A1 (ja) | 2014-05-12 |
US8999232B2 (en) | 2015-04-07 |
EP2639322B1 (en) | 2015-08-26 |
EP2639322A4 (en) | 2014-10-08 |
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