http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
자동차용 포핏밸브형 2-행정기관의 정상상태 소기유동(Ⅰ); 실험적 연구
강건용(K.Y.Kang),이진욱(J.W.Lee),우세종(S.J.Woo),홍순철(S.C.Hong),정용일(Y.I.Jeong) 한국자동차공학회 1994 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1994 No.11_1
Two-stroke engine has inherent advantages over four-stroke engine of greater torque and power, less torque fluctuation and more compactness. At the same time, it has main drawback of the direct short-circuiting and excessive oil consumption. In these days, however, the oil consumption problem has been solved by adapting poppet valve system instead of port type. For the first step study the scavenging flow characteristics of an automotive two-stroke engine is investigated by flow visualization technique under steady condition, in order to ultimately optimize scavenging process using RSSV (rotatable shrouded scavenging valve) system. As working fluid, water is used instead of air to effectively visualize the flow pattern with applying Reynolds analogy.<br/>
강건용(K.Y.Kang),이진욱(J.W.Lee),정용일(Y.I.Jeong),이주헌(J.H.Lee),박정규(J.K.Park) 한국자동차공학회 1995 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1995 No.6_1
A new generation of two-stroke engines has been begun in these days. Environmental requirements are more severe and are pushing for clean engine. The new generation of two-stroke engines represents an interesting answer to the environmental demand for the future. An example of that is a two-stroke diesel engine for automobiles with poppet valves developed by Toyota. In order to ultimately optimize scavenging process using RSSV system for an automotive two-stroke engine, the scavenging flow characteristics is investigated by flow visualization technique under steady condition as a first-stage study. The dye is introduced into the cylinder to observe the path line of the scavenging flow with different RSSV geometries. As working fluid, water is used instead of air to effectively visualize the flow pattern with applying Reynolds analogy.<br/>
[論文] 국산 가솔린 엔진용 저배기공해 System에 관한 연구
성낙원(N. W. Sung),정용일(Y. I. Jeong),박신현(S. H. Park),우세종(S.J. Woo) 한국자동차공학회 1986 오토저널 Vol.8 No.3
In this study, low emission gasoline engine system is developed utilizing an EGR valve, 3 way catalytic converter and electronic fuel injection system. EGR was controlled by a needle valve and optimized at the engine conditions. Throttle body fuel injection system is used for fueling. When the engine was operated at constant speed by the electronic engine control system with the 3 way catalytic converter, the emissions were reduced by 50 to 90% in volume depending on the engine operating conditions.
[디젤엔진부문] 디젤엔진 적용 플라즈마반응기의 내부유동 특성해석
이진욱(J.W.Lee),정용일(Y.I.Jeong),장창익(C.I.Chang) 한국자동차공학회 1999 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1999 No.11_1
In order to reduce NOx and Particulate matter(Pl\1) emitted from diesel engine, many researches are being performed. This paper will discuss the results of an extensive series of experiments aimed towards understanding the effect of exhaust flow condition in plasma reactor and outline how exhaust flow control in plasma reactor affects particulate emissions during D-13 mode test of engine experiment. Parameter characteristic analysis in plasma reactor system was carried out in a heavy duty diesel engine which emit much particulate matter. From this study, we found that the configurations between the exhaust pipe
성낙원(N.W.Sung),정용일(Y.I.Jeong),박신현(S.H.Park) 한국자동차공학회 1987 오토저널 Vol.9 No.5
The control technique for an electronic engine is studied. For this study an IBM-PC and a throttle body fuel injection system are selected. The computer controls fuel injection, spark timing, exhaust gas recirculation and idle speed. Fuel injection is adjusted either by a feedback signal of a zirconia O₂ sensor or programmed logic for starting, acceleration, deceleration, warming up and idle modes. When a 3-way catalytic converter is used with the electronic engine control system, CO, THC, and NOx were reduced more than 90% simultaneously.
엔진 실린더내 스월 및 스퀴시유동장 LDV 측정 및 해석
이진욱(J.W.Lee),강건용(K.Y.Kang),정동수(D.S.Jeong),정용일(Y.I.Jeong),박승주(S.Z.Park) 한국자동차공학회 1995 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1995 No.11_2
Since the combustion process and the pollutant formation in an engine are dealt with paying special emphasis on flow motion and turbulent mixing in combustion chamber, both the bulk flow motion and the turbulence characteristics of the flow are very important. This study presents experimental results of the swirl flow and the squish flow generated the end of compression process and analysis of flow motion phenomina, mean velocity, angular momentum and turbulence intensity.<br/>