JP2005090587A5 - - Google Patents

Download PDF

Info

Publication number
JP2005090587A5
JP2005090587A5 JP2003323172A JP2003323172A JP2005090587A5 JP 2005090587 A5 JP2005090587 A5 JP 2005090587A5 JP 2003323172 A JP2003323172 A JP 2003323172A JP 2003323172 A JP2003323172 A JP 2003323172A JP 2005090587 A5 JP2005090587 A5 JP 2005090587A5
Authority
JP
Japan
Prior art keywords
rotating shaft
bearing
rotating body
rotating
shaft
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.)
Granted
Application number
JP2003323172A
Other languages
Japanese (ja)
Other versions
JP2005090587A (en
JP4197286B2 (en
Filing date
Publication date
Application filed filed Critical
Priority to JP2003323172A priority Critical patent/JP4197286B2/en
Priority claimed from JP2003323172A external-priority patent/JP4197286B2/en
Publication of JP2005090587A publication Critical patent/JP2005090587A/en
Publication of JP2005090587A5 publication Critical patent/JP2005090587A5/ja
Application granted granted Critical
Publication of JP4197286B2 publication Critical patent/JP4197286B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Claims (7)

軸受により支承される回転体の回転軸であって、
少なくとも前記軸受から前記回転体までの間の部位がその他の部位よりもヤング率が高く構成されていることを特徴とする回転体の回転軸。 A rotating shaft of a rotating body supported by a bearing,
A rotating shaft of a rotating body, wherein at least a portion between the bearing and the rotating body is configured to have a higher Young's modulus than other portions. 請求項１に記載の回転体の回転軸であって、
少なくとも軸受から回転体までの間の部位における表層部は、マトリックス金属中に硼化物、炭化物、窒化物のうち少なくとも１種の硬質粒子が分散している複合材料で構成されていることを特徴とする回転体の回転軸。 It is a rotating shaft of the rotary body of Claim 1, Comprising:
The surface layer portion at least in the region from the bearing to the rotating body is composed of a composite material in which at least one hard particle of boride, carbide, and nitride is dispersed in a matrix metal. The rotation axis of the rotating body. エンジン排気により回転駆動されるタービンホイールと、そのタービンホイールと回転軸を介して連結されるコンプレッサホイールと、前記回転軸を支承する軸受とを有するターボチャージャーであって、
前記回転軸は、少なくとも前記軸受から前記コンプレッサホイールまでの間の部位がその他の部位よりもヤング率が高く構成されていることを特徴とするターボチャージャー。 A turbocharger having a turbine wheel that is rotationally driven by engine exhaust, a compressor wheel that is connected to the turbine wheel via a rotational shaft, and a bearing that supports the rotational shaft,
The turbocharger is characterized in that at least a portion between the bearing and the compressor wheel has a higher Young's modulus than the other portions of the rotating shaft. 請求項３に記載のターボチャージャーであって、
回転軸は、少なくとも軸受からコンプレッサホイールまでの間の部位における表層部が、マトリックス金属中に硼化物、炭化物、窒化物のうち少なくとも１種の硬質粒子が分散している複合材料で構成されていることを特徴とするターボチャージャー。 The turbocharger according to claim 3, wherein
The rotating shaft is composed of a composite material in which at least one surface layer portion between the bearing and the compressor wheel is dispersed with at least one hard particle of boride, carbide, or nitride in a matrix metal. Turbocharger characterized by that. 軸受により支承される回転体の回転軸の製造方法であって、
少なくとも前記軸受から前記回転体までの間の部位における表層部を高密度エネルギ熱源により溶融する工程と、その溶融した表層部に硬質粒子あるいは硬質粒子を析出させる材料を添加する工程と、を有することを特徴とする回転体の回転軸の製造方法。 A method of manufacturing a rotating shaft of a rotating body supported by a bearing,
At least a step of melting a surface layer portion in a region from the bearing to the rotating body with a high-density energy heat source, and a step of adding hard particles or a material for precipitating hard particles to the melted surface layer portion. A method for manufacturing a rotating shaft of a rotating body. 電動モータと、この電動モータの出力軸である回転軸と、この回転軸を介して電動モータと連結されるインペラと、前記回転軸を支承する軸受とを備える電動フューエルポンプであって、An electric fuel pump comprising an electric motor, a rotating shaft that is an output shaft of the electric motor, an impeller coupled to the electric motor via the rotating shaft, and a bearing that supports the rotating shaft,
前記回転軸は、少なくとも前記軸受から前記インペラまでの間の部位が、他の部位よりもヤング率が高く構成されていることを特徴とする、電動フューエルポンプ。  The electric fuel pump according to claim 1, wherein at least a portion of the rotating shaft between the bearing and the impeller is configured to have a higher Young's modulus than other portions. 請求項１または請求項２に記載の回転体の回転軸を適用した車両のウォーターポンプ。A water pump for a vehicle to which the rotating shaft of the rotating body according to claim 1 or 2 is applied.
JP2003323172A 2003-09-16 2003-09-16 Rotating shaft of rotating body and manufacturing method thereof Expired - Fee Related JP4197286B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003323172A JP4197286B2 (en) 2003-09-16 2003-09-16 Rotating shaft of rotating body and manufacturing method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003323172A JP4197286B2 (en) 2003-09-16 2003-09-16 Rotating shaft of rotating body and manufacturing method thereof

Publications (3)

Publication Number Publication Date
JP2005090587A JP2005090587A (en) 2005-04-07
JP2005090587A5 true JP2005090587A5 (en) 2006-01-26
JP4197286B2 JP4197286B2 (en) 2008-12-17

Family

ID=34454323

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003323172A Expired - Fee Related JP4197286B2 (en) 2003-09-16 2003-09-16 Rotating shaft of rotating body and manufacturing method thereof

Country Status (1)

Country Link
JP (1) JP4197286B2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101846094B (en) * 2010-06-03 2012-08-22 蓝星化工有限责任公司 Magnetic centrifugal pump
US8734017B1 (en) * 2013-03-08 2014-05-27 Hamilton Sundstrand Corporation Air bearing shaft
JP6463640B2 (en) * 2015-01-27 2019-02-06 川崎重工業株式会社 Marine exhaust turbine
DE102016103115A1 (en) * 2016-02-23 2017-09-07 Ihi Charging Systems International Gmbh Tool for an exhaust gas turbocharger
JP7453524B2 (en) 2020-03-19 2024-03-21 日本製鉄株式会社 steel parts

Similar Documents

Publication Publication Date Title
AU2004316496B2 (en) Turbocharger compressor wheel having a counterbore treated for enhanced endurance to stress-induced fatigue and configurable to provide a compact axial length
JP2006304543A (en) Cooling structure of in-wheel motor
CN105715303B (en) Exhaust-driven turbo-charger exhaust-gas turbo charger
JP2007321699A (en) Motor-driven supercharger
JPH0115719B2 (en)
CN107110011A (en) Turbocharger
WO2008020511A1 (en) Electric supercharger
JP2002309902A5 (en)
JPH08232679A (en) Vane-attached passage hub structure for stator vane with cantilever and manufacture thereof
JP2005090587A5 (en)
CN106677878A (en) Driving device for changing fan rotating direction and control method
JP2003239894A (en) Axial flow fan
WO2020241521A1 (en) Vacuum pump, and linked-type screw groove spacer
EP3913189A1 (en) Blade with abrasive tip
JP2003193996A (en) Moving vane member and manufacturing method therefor
CN207320992U (en) Outer rotor heat dissipation end cap and motor cooling structure
JPH09505782A (en) Wheel direct drive small engine fluid coupling
WO2017158837A1 (en) Rotating machine and method for manufacturing casing for rotating machine
JP5163150B2 (en) Electric compressor
CN103775137A (en) Guide blade arrangement for an exhaust gas turbocharger
JP4197286B2 (en) Rotating shaft of rotating body and manufacturing method thereof
JP2000291441A (en) Impeller of turbocharger
JP2007321675A (en) Rotary shaft structure and motor-driven supercharger
KR101978381B1 (en) Reduced stress superback wheel
JP2004132264A (en) Turbocharger with rotating electric machine