http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Euro-6(c) 입자상 물질 개수(PN) 규제 대응 GDI 차량 실도로 내구를 통한 GPF 시스템 PN 제거 성능 검증
정갑순(Gap-soon Jung),송진우(Jin-woo Song),윤기영(Ki-young Yoon),인치범(Chi-bum In) 한국자동차공학회 2014 한국자동차공학회 부문종합 학술대회 Vol.2014 No.5
In this study, a optimized GPF system was verified with 160,000 km fleet durability test conducted with GDI vehicle by the first in Korea. The GPF system could meet the Euro-6(c) PN regulation at all given mileage, and soot accumulation was not found at low speed driving, < 50kph, until 20,000 km. And the getting higher PN removal efficiency and back pressure were observed with increasing mileage, thanks to the ash accumulation in GPF. The accumulated ash played key role to increase back pressure of the GPF, and the shape of ash was deeply related with the exhaust gas flow distribution. Eelemental analysis of the ash was well matched with the lubricant oil such as P, Zn, Ca.
김상호(Sang Ho KIM),인치범(Chi Bum IN),조원석(Won Suk CHO) 한국자동차공학회 1996 한국자동차공학회 학술강연초록집 Vol.- No.-
티타늄합금을 사용하여 흡기밸브, 배기밸브, 밸브스프링 리테이너를 시제작하였다. FEM 구조해석결과와 모터링 내구실험결과를 통해 이들 부품들이 신뢰성을 가지는 것으로 판명되었다. 엔진출력 및 토오크가 3%~4%향상되었다. 단 향후 엔진내구실험을 통하여 충분한 내구성검증이 필요하다고 판단된다.
동적유동모사장치를 이용한 PZEV 기준 대응용 배기계의 유동 분포 측정을 위한 실험적 연구
김인수(Insu Kim),명차리(Cha-Lee Myung),박심수(Simsoo Park),인치범(Chi-Bum In),여권구(Gwon koo Yeo) 한국자동차공학회 2006 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
As the current and future automobile emission regulations become stringent, the research of exhaust manifold and CCC has been the interesting and remarkable subject. The design of a CCC manifold is a formidable task due to the complexity of the flow distribution caused by the pulsating flows that are emitted by the exhaust ports. Measurement of flow distribution can be done with computational fluid dynamics (CFD). However, such simulations must be verified with selected experimental data. In this study, conventional casting type and stainless steel bending type of a 4-cylinder engine(with 900 cell CCC system) was performed to investigate the flow distribution of exhaust gases. Pressure was measured using simulated dynamic flow bench and 5-hole pitot probe. And then the flow uniformity of bending type exhaust manifold compared with that of the casting type. Based on the experimental data, this study verified exhaust system optimization for the better use of catalytic converter.
EURO-6 PN 규제 대응 GDI 엔진용 GPF 시스템 개발
김홍래(Hong-rae Kim),송진우(Jin-woo Song),한현식(Hyun-sik Han),윤기영(Ki-young Yoon),인치범(Chi-bum In) 한국자동차공학회 2011 한국자동차공학회 학술대회 및 전시회 Vol.2011 No.11
Recently, the important issues of gasoline engine are fuel consumption and emission. So Gasoline Direct Injection (GDI) engines have been widely adopting for advantages in engine performance and fuel economy compared with MPI engine and it can be used effectively for downsizing while keeping the same or better engine performance. However, as a drawback the GDI engine raise the issue of Particulate Number (PN) emissions. In this study, new washcoat was designed specifically for GPF to achieve not only emissions (HC, CO, NOx) but also PN. GPF was replaced with the rear-brick TWC in Integrated Close-coupled Catalytic Converter (ICCC) with the same PGM amount and similar volume to suppress the increase of additional cost. Particle number of a GDI vehicle was measured by a CPC instrument during NEDC. As the result, GPF system showed better exhaust gases removal performance than TWC system and showed 85~90% PN filtration efficiency could meet the proposed Euro-6 PN regulation. However, GPF system increased significantly back pressure to reduce the advantages of GDI engine.