Title: Simulation and experiments of advanced gasoline engine combustion modes from spark ignition to compression ignition

Authors: Zhi Wang; Shijin Shuai; Buyu Wang

Addresses: State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 100084, China ' State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 100084, China ' State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 100084, China

Abstract: This paper reviews some advanced gasoline engine combustion modes, including direct injection spark ignition (DISI), homogeneous charge compression ignition (HCCI), stratified charge compression ignition (SCCI), and multiple premixed compression ignition (MPCI). To reveal the engine knock mechanism of DISI combustion, the flame propagation and pressure oscillation in a boosted gasoline engine were numerically analysed. To further improve thermal efficiency and reduce emissions, the effects of injection strategies on fuel economy, emissions, and heat release in HCCI combustion were studied. To solve the challenges of ignition control and rapid combustion of HCCI, SCCI and MPCI combustion modes were adopted to achieve high efficiency, low emissions, and low acoustic noise simultaneously.

Keywords: direct injection spark ignition; DISI engines; homogeneous charge compression ignition; HCCI engines; stratified charge compression ignition; SCCI engines; multiple premixed compression ignition; MPCI engines; simulation; engine combustion modes; engine knock; flame propagation; pressure oscillation; thermal efficiency; injection strategies; fuel economy; emissions reduction; engine emissions; heat release; engine noise.

DOI: 10.1504/IJPT.2017.082902

International Journal of Powertrains, 2017 Vol.6 No.1, pp.49 - 75

Received: 10 Aug 2015
Accepted: 10 Jan 2016

Published online: 15 Mar 2017 *

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