| ================================================================= ENGINEERING NEWS IN BRIEF E-Mail Newsletter No.2 Issued by the Asian TOP Panel, February 2002. The Chinese Mechanical Engineering Society (CMES) The Institution of Engineers, Indonesia (PII) The Japan Society of Mechanical Engineers (JSME) The Korean Society of Mechanical Engineers (KSME) ================================================================= About the Asian TOP Panel (ATOP) On August 29, 2001, presidents of four engineering societies gathered in Japan to pave the way for stepped-up collaboration. They are Chinese Mechanical Engineering Society, Institution of Engineers Indonesia, Japan Society of Mechanical Engineers, and Korean Society of Mechanical Engineers. They agreed to establish the Asian TOP Panel (ATOP), which is a voluntary body and open to any Asian engineering society and institution. At the first meeting, they decided to issue monthly E-mail newsletter which you are reading now. It will carry short technical news of Asian countries, and be distributed to all individual members of the ATOP societies and institutions. ATOP will meet every two years. The next meeting will be held in Korea in 2003. ================================================================= [Contents] (1) 2002 KSME Board Members ratified in the 2001 Regular General Meeting (Source : KSME). (2) Large Output and Low Noise Motor for Electrical Power Steering (Source : JSME). (3) Development of High Power MACH-30G Gas Engine (Source : JSME). (4) Processing of PCB --New Technology of a Japanese Company (Source :JSME). ================================================================= (1) 2002 KSME Board Members ratified in the 2001 Regular General Meeting The 2001 Regular General Assembly of KSME was held at Chonbuk National University Culture Center on November 2 last year on the occasion of KSME Annual Fall Conference which was held at Chonbuk National University on November 1 - 3, 2001. The Assembly was attended by 459 KSME Members (including 273 who entrusted their votes) and ratified 2002 KSME Board Members who were elected at the Board of Representatives which was held at Korea Science and Engineering Building on September 21, 2001. As usual, only the new President and five Vice-Presidents were elected by vote and the election of the Directors was left to the group of former Presidents, newly elected President and Vice-Presidents. The names of new KSME Board Members are as follows: President : Han, Dong-Chul (Seoul National University) Vice-Presidents : Kang Yong Lee (Yonsei University), Jung Yul Yoo (Seoul National University), Jung Kyu Kim (Hanyang University), Jae Hak Kim (Doosan Heavy Industries & Construction Co., Ltd.), In Kee Chung (Yeungnam University). Directors : General Affairs : Jae Kyoo Lim (Chonbuk National University), Hong-Sun Ryou (Chung-Ang University), Chong Nam Chu (Seoul National University). Treasury : Kwang Min Chun (Yonsei University), Gil-Moon Park (Chosun University). Activities : Sang-Hoon Choi (Konkuk University), Ji Oh Song (Samsung Electronics Co., Ltd.), Jae Do Kwon (Yeungnam University), Wan Suk Yoo (Pusan National University). Publications : Kwang-Joon Kim (Korea Advanced Institute of Science and Technology), Tai Hun Kwon (Pohang University of Science and Technology), Seyoung Im (Korea Advanced Institute of Science and Technology), Kwan Soo Lee (Hanyang University) Simsoo Park (Korea University). ================================================================= (2) Large Output and Low Noise Motor for Electrical Power Steering Recently, EPS (Electrical Power Steering) is being widely applied in order to reduce fuel consumption. The EPS applied car size is enlarged from micro-cars in Japan to 2-liter class vehicle, and the output of EPS motor is required to be large but the noise of it to be low. 2-pole and 2-brush were used in conventional motor for micro-cars. But 4-pole and 4-brush have advantages for enhancing the output, because the magnetic pass becomes compact, winding length becomes short, and brush becomes small. By using 4-pole and 4-brush motor, we realized 500W output, which was two times as large as 2-pole and 2-brush motor. However, the difference of commutation timing in two brushes of same polar causes the radial magnetic pull and the noise. We applied the short-circuit wires for symmetrical segments in commutator. These wires keep the voltage of segments in the same plolar being same, and the current distribution of armature being symmetrical. Also these wires are easy to be implemented without increasing the motor size. As a result, magnetic pull in radial direction was eliminated and low noise level of 40dB(A) was realized even for 2-liter class vehicle. (Akihiko Imagi, Mitsubishi Electric Corporation) ================================================================= (3) Development of High Power MACH-30G Gas Engine Mitsubishi Heavy Industries,Ltd.(MHI) has developed a micro pilot MACH30G gas engine ignited not by spark plugs but by gas oil less than 1% of total fuel energy. Brake mean effective pressure (BMEP) was increased to 1.96Mpa, which covers output from 3.7MW to 5.8MW with V-12, 14, 16,and 18 cylinder configuration. This engine has been tested with the common rail system for pilot injection, the VG turbocharger for air / fuel ratio control, and knock detection and control system smooth operation. In this test, MHI achieved high thermal efficiency of 43.8% and low NOx emission of 0.5g/kWh. (Kuninori Ito, Mitsubishi Heavy Industries, Ltd.) ================================================================= (4) Processing of PCB --New Technology of a Japanese Company Tokyo Electric Power Company (TEPCO) established one continuous processing system of PCB (Polychlorinated Biphenyl) from de-toxifying to re-utilization. Although its production and use was banned 30 years ago, the PCB is still kept by the users as wastes. TEPCO pioneered this new processing system with assured safety at its recycling center. This system is catching attention of local governments and companies which have long awaited for solution of the problem with PCB wastes. (The Business & Technology Daily News, January 31, 2002, Tokyo) ================================================================= Editor: Yutaka Ohta, International Affairs Committee FAX : 81-3-5360-3508 
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