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Construction of Model to Predict Wear Amount on Exhaust Valve Seats for Gasoline Engines

Article of Honda R&D Technical Review Vol.29 No.2

Summary

A technique has been created to predict the amount of wear on exhaust valve seats for gasoline engines. Through bench and rig wear tests, a prediction model was constructed with multiple factors as variables. Through these tests, the controllable factors were categorized, and sensitivity for each factor was determined from the measured wear data. The model was also applied to valve seats of different materials, confirming its versatility. By using the model to predict the amount of wear on valve seats in the cylinder head design phase, a cylinder head structure was quickly devised to increase valve seat wear resistance, shortening the development period and reducing development cost.

Reference

(1) Nakano, K., Wada, Y., Jono, M., Narihiro, S.: New In-Line 4-Cylinder Gasoline Direct Injection Turbocharged Downsizing Engine, Honda R&D Technical Review, Vol. 28, No. 1, p. 139-146
(2) Sato, K., Midorikawa, T., Yamasaki, Y., Takahashi, T.: Development of Valve Seat Material for Gas Fueled Engine, HONDA R&D Technical Review, Vol. 11, No. 1, p. 149-156
(3) Oketani, H., Tsubota, R., Ishida, M.: Development of Low-cost Material for Engine Exhaust Valve Seat, Honda R&D Technical Review, Vol. 17, No. 1, p. 130-137
(4) Kawata, H., Fujitsuka, H.: Co, Pb-Free Exhaust Valve Seat Insert Material, Hitachi Chemical Technical Report, No. 44, p. 31-34, (2005)
(5) Ootani, T., Yahata, N., Fujiki, A., Ehira, A.: Impact Wear Characteristics of Valve and Valve Seat Insert Materials for Engines at High Temperature (Plane Impact of Martensitic Heat Resistant Steel SUH3 against Fe-Base Sintered Alloy), Transactions of the Japan Society of Mechanical Engineers Series C, Vol. 60, No. 576, p. 333-339, (1994) (in Japanese)
(6) Ootani, T., Yahata, N., Hatano, Y., Maki, K.: Impact Wear Characteristics of Engine Valve and Valve Seat Insert Materials at High Temperature (2nd Report, Impact Wear Tests of Austenitic Heat Resistant Steel SUH36 against Two Types of Fe-Base Sintered Alloy with Plane and Oblique Surfaces), Transactions of the Japan Society of Mechanical Engineers Series C, Vol. 62, No. 598, p. 265-272, (1996) (in Japanese)
(7) Kitayama, S., Sakai, S., Arakawa, M., Yamazaki, K.: Sequential Approximate Optimization Using Radial Basis Function Network (Application to the Discrete Design Variable Problems), Transactions of the Japan Society of Mechanical Engineers Series C, Vol. 78, No. 787, p. 177-190, (2012) (in Japanese)
(8) Uemoto, R., Uno, H., Nagano, A., Oonishi, T., Kameda, D., Fukuda, N., Yanagisawa, Y., Yoshida, A., Kubo, T., Kambara, T.: Application of the real time wear measurement by using RI beam, JSAE Annual Congress Proceedings, No. 30-11, p. 9-11, (2011) (in Japanese)

Author (organization or company)

Yoshikatsu SHIWA(Automobile R&D Center)、Satoshi KISHIWADA(Automobile R&D Center)、Kenta YOSHII(Automobile R&D Center)、Noriyuki SATOU(Automobile R&D Center)、Keisuke ISHII(Automobile R&D Center)、Hisashi HASHIMOTO(Automobile R&D Center)、Takeshi FUJII(Automobile R&D Center)、Seisuke TAKAKI(Nippon Piston Ring Co., Ltd.)、Hiroshi OSHIGE(Nippon Piston Ring Co., Ltd.)

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