Zgadzam się
Nasza strona zapisuje niewielkie pliki tekstowe, nazywane ciasteczkami (ang. cookies) na Twoim urządzeniu w celu lepszego dostosowania treści oraz dla celów statystycznych. Możesz wyłączyć możliwość ich zapisu, zmieniając ustawienia Twojej przeglądarki. Korzystanie z naszej strony bez zmiany ustawień oznacza zgodę na przechowywanie cookies w Twoim urządzeniu.
Technologies that improve the efficiency of internal combustion engines are attracting
ever -grow ing interest due to increasing demands concerning fuel economy and exhaust
emissions. For years, engine evolution was focused on software or control devices development,
with acceptance of only small mechanical changes to the well -established engine design.
Recently, researchers and engineers put their attention to large mechanical changes to allow
achieving high fuel efficiency. In the current study, a set of simulation experiments was
performed to investigate the potential of Atkinson cycle realization using a modified Atkinson crank mechanism. The latter was modified by using excenter pin which additionally enabled
control of compression ratio as well as the ratio between compression and expansion. Investigated solution was analysed under spark ignition operation and compared to the standard
crank mechanism. The simulations were performed using AVL BOOST software. The model
was validated using standard spark ignition engine measurement data.
Afterwards, the engine was modified to investigate above mentioned strategies to improve thermal efficiency. The research successfully identified strategies, which allow control of engine aspiration and combustion, to hasten real-world application of these advanced combustion systems
.
