http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
민곤(K.Min),명차리(C.L.Myung),장창현(C.H.Chang),윤금중(K.J.Yoon) 한국자동차공학회 1994 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Natural gas(NG) is an attractive automotive fuel in view of abundant resources and low ozone forming potential of exhaust emissions mainly composed of non-reactive methane, As the emission standard becomes stringent year by year, more attention has been moved to the development of light duty NG vehicles.<br/> HMC has been developing a natural gas vehicle(NGV) for years as an alternative fuel and now is undergoing vehicle emission test, Vehicle fuel system including NG cylinder, pressure regulator and special injector for gaseous fuels was modified to operate on NG. The fuel injector driver module was used to provide the high current that is necessary for operation of the gaseous injectors. Taken into account the unburned methane purification, specially formulated catalytic converters, UCC and MCC, were tested to evaluate a suitable catalyst with high conversion efficiency, Emission test results show that HMC's NGV has possibility to meet the LEV standard and more stringent future regulations, but the vehicle durability should be further investigated,<br/>
현대 MPI CNG(Compressed Natural Gas) 엔진 개발
장창현(C.H.Chang),민곤(K.Mim),명차리(C.L.Myung),윤금중(K.J.Yoon) 한국자동차공학회 1993 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
This paper describes Hyundai' s research and development work on the dedicated compressed natural gas (CNG) engine, A conventional I ight duty gasoline engine, a 1. 5<br/> liter four cylinder DOHC. has been modified to run on natural gas (NG) by a gas<br/> injection system and engine dynamometer test has been performed wi th emphasis on optimizations of compression ratio and intake port, Also presented are the results on the exhaust emissions characteristic and the purification performance of three-way<br/> catalytic converters developed for NG engine, Fuel composition and TI1C emissions are analyzed quantitatively using gas chromatography devices.<br/>
이황복(H.B.LEE),이석재(S.J.LEE),한봉훈(B.H.HAN),윤금중(K.J.YOON) 한국자동차공학회 1995 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1995 No.11_2
In HMC, researches on the hydrogen fueled engine have been carried out to evaluate the feasibility of hydrogen fuel as an alternative automotive fuel. For these studies. a DOHC engine was designed to supply gaseous hydrogen directly into the combustion chamber by use of hydrogen injector. The hydrogen injector was actuated by peak and hold type current signal (13A/8A). Tests have been performed to obtain the characteristics of performance and exhaust emissions. Compared with the gasoline engine. hydrogen engine produces higher NOx emission and the MBT ignition timing is limited in the vicinity of firing TDC due to the fast burning of hydrogen. Its performances are also influenced by injection timing considerably. As for catalyst test, the NOx conversion efficiency of hydrogen engine emission shows the similar trend to that of gasoline engine emission.<br/>
모하메드 하산(H.Mohamed),고영성(Y.S.Ko),윤금중(K.J.Yoon),정석호(S.H.Chung) 한국자동차공학회 1998 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1998 No.5_1
In this study, a new type of laser-induced ignition was developed. Without focusing laser beam, it was possible to ignite combustible mixtures by reducing the laser beam diameter to a small value and directing that beam into a small conical cavity. Shadowgraphs for the early stages of combustion process showed that a hot gas jet is ejecting from the cavity, especially when burning lean mixture. After a very short time, the hot gas jet had finished issuing and the flame behavior is quite similar to flame propagation initiated by a conventional spark plug. This type of ignition exhibits more rapid and a higher maximum pressure rise than center ignition with a significant decrease in the combustion duration. Also, the combustion process with this type of ignition was simulated using a part of KIVA-II and good agreement between experimental and calculated results of temperature distribution was obtained.<br/>