カム・フォロワの摩擦・摩耗・スカッフィング特性

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書誌事項

タイトル別名
  • Characteristics of Friction, Wear and Scuffing for Cam and Follower
  • カム・フォロワの摩擦・摩耗・スカッフィング特性 : エンジンの性能・信頼性向上のためのトライボロジー技術を求めて
  • カム ・ フォロワ ノ マサツ ・ マモウ ・ スカッフィング トクセイ : エンジン ノ セイノウ ・ シンライ セイコウ ジョウ ノ タメ ノ トライボロジー ギジュツ オ モトメテ
  • ―エンジンの性能・信頼性向上のためのトライボロジー技術を求めて―
  • ―Investigating Tribotechnology to Improve Performance and Reliability for Engines―

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抄録

<p>In order to improve the performance and reliability of internal combustion engines the past experimental or analytical studies conducted by the author and the collaborators as follows on the tribotechnology for the valve train cam & follower and lubricants in the engines have been reviewed to consider the design concepts still important in the future. Firstly, the changes of friction characteristics with the material, the surface roughness or the oil supply method were examined by measuring the friction force of the cam and slipper follower specimens with an original cam follower test rig. Secondly the friction characteristics of the cam and roller tappet was examined by measuring the forces acting onto the tappet body with an original test rig as large as the practical OHV train mechanism. And, the effect to reduce the friction was examined for the surface finishing of the cam lobe or the bearing type to support the roller follower. Thirdly the changes of the friction and scuffing characteristics with the blend of additives like ZnDTP and MoDTC in low viscosity base oils were examined to ascertain the best blend of additives as the high SAPS lubricant. Also, the friction and the wear under the lubrication with the test oil contaminated with diesel soot kinds were measured with the cam and slipper follower test rig. Additionally, the friction and the wear under the lubrication with the low SAPS lubricant with or without the soot contamination were measured to examine the friction and wear characteristics and/or the effect for the compatibility of the test oil with DLC coating or other surface modification like a mirror face finish.</p>

収録刊行物

  • トライボロジスト

    トライボロジスト 64 (2), 71-80, 2019-02-15

    一般社団法人 日本トライボロジー学会

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