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자동변속기용 습식 발진클러치의 슬립 조건에 따른 드래그 토크 변화에 관한 연구
이진수(Jinsoo Lee),홍순석(Soonseok Hong),장재덕(Jaeduk Jang),주인식(Insik Joo) 한국자동차공학회 2010 한국자동차공학회 부문종합 학술대회 Vol.2010 No.5
Almost automatic transmission based on planetary gear set use the torque converter as a starting device due to high power density and comfortable, vibration-decoupling torque transmission. But, the most disadvantage of the hydrodynamic starting device is low fuel efficiency. The torque converter in its modern design with lockup clutch and despite more and more improvements requires radial and axial installation space between the engine and the transmission. But, it is impossible to use big size converter because of limit area for starting device. The newly introduced the starting device with multi-plates is able to use to the stepped automatic transmission. This wet start clutch can achieve compact size due to no hydraulic elements, only have multi-plate clutch and damper system. The most innovative design for this starting device is the self-induced cooling concept. The single side plates with radial slots and reliefs in the steel support on the external and internal providing oil flow paths to cooling around the friction material which was heated by high slip speed. The drag torque is frictional resistance between drive plate and driven plate during the clutch does not engaged. Especially, this drag torque affects fuel efficiency at idle condition of engine. This paper describes the drag torque of pressure condition and slip time.
Orthotopic Lung Cancer Mouse Model using the Minimally Invasive Method
Jinsoo Lee(이진수),Young-Su Yang,Heung-Sik Seo,Min-Sung Kang,Soo-Nam Kim,Seong-Jin Choi,Soonjin Kwon,Byeong-Chan Lee,Hyo-Seon Yang,Young-Ah Han,Hee-Jin Yu,Jeong-Doo Heo,Kyu-Hyuk Cho,Kyuhong Lee,Chang-Woo 한국실험동물학회 2009 한국실험동물학회 학술발표대회 논문집 Vol.2009 No.2
이진수(Jinsoo Lee),홍순석(Soonseok Hong),장재덕(Jaeduk Jang),주인식(Insik Joo) 한국자동차공학회 2010 한국자동차공학회 학술대회 및 전시회 Vol.2010 No.11
Almost automatic transmission based on planetary gear set use the torque converter as a starting device due to high power density and comfortable, vibration-decoupling torque transmission. But, the most disadvantage of the hydrodynamic starting device is low fuel efficiency. The torque converter in its modern design with lockup clutch and despite more and more improvements requires radial and axial installation space between the engine and the transmission. But, it is impossible to use big size converter because of limit area for starting device. The newly introduced the starting device with multi-plates is able to use to the stepped automatic transmission. This wet start clutch can achieve compact size due to no hydraulic elements, only have multi-plate clutch and damper system. The most innovative design for this starting device is the self-induced cooling concept. The single side plates with radial slots and reliefs in the steel support on the external and internal providing oil flow paths to cooling around the friction material which was heated by high slip speed. This paper describes the design and development of a wet start clutch for RWD automatic transmission.
희박 메탄-공기 혼합기의 Auto Ignition 연소 특성에 관한 연구
이진수(Jinsoo Lee),차경옥(Kyungok Cha),최수진(Sujin Choi),조규백(Gyuback Cho),정동수(Dongsoo Jeong) 한국자동차공학회 2004 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
There are some disadvantages in efficiency for gasoline combustion and in NOx and PM (particulate matter) emission for diesel engine. CAI (controlled auto-ignition) combustion is a recommendable technology to use advantages of gasoline and diesel mixture in the constant volume combustion chamber (CVCC). Flame propagation photos and pressure signals were acquired to verify internal EGR effect according to a hole type adaptor. The hole type adaptor creates a high-speed burned gas jet. It achieved higher flame propagation speed and autoignition due to the effect of geometry and burned gas jet.