Hironao Sato   Masahiro Oba   Takashi Hiromoto   Kiyofumi Sato   Toshiyuki Sonobe   Satoru Hayakawa   Koji Morikawa   Yasuo Moriyoshi   Noriaki Sekine   
SAE Technical Papers 2023年4月
This study focused on the vehicle interior noise caused by combustion in which vibration transmission is the main component at high speed and high load region. A phenomenon in which both the combustion's exciting force and the structure's exciting...
To realize stable combustion in lean or diluted conditions, reducing cycle-to-cycle variations of flow and fuel distribution is important. In this study, the effect of initial flow field was examined by simultaneous Time-Resolved PIV and visualiza...
Mario Pipolo   Andre Kulzer   Marco Chiodi   Yasuo Moriyoshi   
SAE Technical Papers 2023年
There is a growing need for low-emissions concepts due to stricter emission regulations, more stringent homologation cycles, and the possibility of a ban on new engines by 2035. Of particular concern are the conditions during a cold start, when th...
International Journal of Engine Research 24(6) 146808742211188-146808742211188 2022年9月
A detailed investigation of post-oxidation phenomena by individual and combined effects of scavenging (VVT tuning) and secondary air injection (SAI) was performed. The 1-D simulation including a post-oxidation model developed by Stuttgart Universi...