1. A novel volumetric efficiency model for spark ignition engines equipped with variable valve timing and variable valve lift Part 1: model development. (February 2017) Authors: Kakaee, Amir Hasan; Mashadi, Behrooz; Ghajar, Mostafa Journal: Proceedings of the Institution of Mechanical Engineers Issue: Volume 231:Number 2(2017:Feb.) Page Start: 175 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗