STUDY ON DEFORMATION OF PISTON AND CYLINDER IN INTERNAL COMBUSTION ENGINE

内燃机活塞与气缸变形研究

• 批准号: 04452150
• 负责人: SOMEYA Tsuneo
• 金额: $ 4.74万
• 依托单位: MUSASHI INSTITUTE OF TECHNOLOGY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1992
• 资助国家: 日本
• 起止时间: 1992 至 1994
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-04452150/
• 关键词: PISTON; CYLINDER BORE; DEFORMATION; OIL CONSUMPTION; SEIZURE; FINITE ELEMENT METHOD; GASOLINE ENGINE; ドライライナー; ピストンスカート

(1) Study on the deformation of cylinder boreIt has been vital requirement to understand the cylinder bore deformation during actual engine operation for the purpose of engine desing as the countermeasures of oil consumption, gas leakage, unusual wear, scuffing, etc. In this study, the mechanism of cylinder bore defrmation by thermal stress were made clear through the measurement of cylinder bore deformation using unique measuring device "TURNING PISTON"which can rotate the upper part of piston embedded gapsensors and through the analysis of finite element method. And the relation between the oil consumption and the clyinder bore deformation were made clear through the measurement of oil consumption using wet-liner having bore deformed profile and through theoretical approach which consider the deformation of the bore and the ring using FURUHAMA's dynamic theory of piston-ring lubrication.(2) Study on the deformation of piston-skirtIt has been suggested that the deformation of engine piston-skirt under operating condition has close relation Oto piston seizure and piston slap noise. In this study, a new method was developed to measure the deformation under operating conditions by means of rotating cylinder with embedded gap-sensors. And the relation between piston shape and deformation, and mainly the mechanism of thermal distortion were made clear through the measurement of piston deformation using the new method and through the analysis of finite element method.

(1)缸径变形的研究了解发动机实际运行过程中缸径的变形对于设计发动机以应对机油消耗、漏气、异常磨损、拉伤等问题至关重要。本研究通过使用独特的测量装置“TURNING”测量缸径变形，明确了热应力引起的缸径变形的机理。 PISTON”可旋转，活塞上部嵌入间隙传感器并通过有限元方法分析。并通过利用具有孔变形轮廓的湿式缸套测量油耗，并利用古滨的活塞环润滑动态理论考虑孔和环的变形的理论方法，明确了油耗与气缸孔变形之间的关系。(2)活塞裙变形的研究提出了发动机活塞裙在工作条件下的变形。 Oto 活塞咬合与活塞拍打噪声有密切关系。在这项研究中，开发了一种新方法，通过带有嵌入式间隙传感器的旋转圆柱体来测量操作条件下的变形。通过新方法测量活塞变形并通过有限元分析，明确了活塞形状与变形的关系，主要是热变形的机理。

项目成果

一杉英司 他2名: "Study on Mechanism of Oil Consumption by Cylinder Bore Deformation" SAE Fuel&Lubrication. (発表予定). (1995)

Eiji Hitosugi 等 2 人：“气缸孔变形导致的机油消耗机制研究”，SAE 燃料与润滑（即将发表）。

Hitosugi, H., Nagoshi, K., Ebina, M., Furuhama, S.: ""Study on the Cylinder Bore Deformation of Dry-Liner in Engine Operation"" Proceeding of 1995 JSAE Spring Convention. (Plan of present). (1995)

Hitosugi, H.、Nagoshi, K.、Ebina, M.、Furuhama, S.：““发动机运行中干缸套缸孔变形的研究””1995 年 JSAE 春季会议论文集。

Ito, A., Ishida, I., Kataoka, N., Furuhama, S.: ""Study on the Measurement of Piston Skirt Deformation by means of Rotating Cylinder under Engine Operating Condition"" Proceedings of 1993 JSAE Autumn Convention. No.934. (1993)

Ito, A.、Ishida, I.、Kataoka, N.、Furuhama, S.：“在发动机工作条件下通过旋转气缸测量活塞裙变形的研究”1993 年 JSAE 秋季会议论文集。

伊東 明美 _<他3名>: "回転シリンダによるエンジン実働中のピストン変形の測定に関する研究" 自動車技術会 学術講演前刷集. 934. 81-84 (1993)

伊藤明美_<3人>：“使用旋转气缸测量发动机运行期间活塞变形的研究”日本汽车工程师学会学术演讲预印本934.81-84（1993）。

伊東 明美: "Measurement of Piston-Skirt Deformation in Engine Operation by Means of Rotating Cylinder with Gap-Sensors" SAE TECHNICAL PAPER SERIES. 930717. 115-123 (1993)

Akemi Ito：“通过带有间隙传感器的旋转气缸测量发动机运行中的活塞裙变形”SAE 技术论文系列 930717. 115-123 (1993)