Development of a new fully flexible hydraulic variable valve actuation system for engines using rotary spool valves

Autor: Yanjun Huang, Mohammad Pournazeri, Amir Khajepour

Publikováno v: Mechatronics. 46:1-20

In this paper, a new hydraulic variable valve actuation (VVA) system is proposed and designed. The VVA system can significantly improve the engine performance in terms of the power density, volumetric efficiency, emission, and fuel consumption. In th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8118586e7ce08bf1da304b962882ef3a
https://doi.org/10.1016/j.mechatronics.2017.06.010

DigitalAir™ Camless FVVA System - Part 2, Gasoline Engine Performance Opportunities

Autor: Stephen Charlton, Charles E. Price, Roshan S. Wijetunge, Jeffrey Allen Rogers, James M. A. Turner, William Anderson

Publikováno v: Charlton, S J, Price, C E, Rogers, J, Turner, J, Wijetunge, R S & Anderson, W 2017, ' DigitalAir ™ Camless FVVA System-Part 2, Gasoline Engine Performance Opportunities ', SAE International Journal of Engines, vol. 10, no. 3, pp. 832-845 . https://doi.org/10.4271/2017-01-0641

The paper describes a completely new approach to fully variable valve actuation (FVVA), which allows almost unlimited continuously variable control of intake and exhaust valve opening and closing events, and duration without the use of a camshaft. Di

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::19fb406ee7506bf58069c2dbdcb9012c
https://doi.org/10.4271/2017-01-0641

Optimization of the Performance of a Formula SAE Engine by Means of a Wastegate Valve Electronically Actuated

Autor: Giovanni Ferrara, Giovanni Vichi, Lorenzo Ferrari, Luca Romani, Alessandro Bianchini

Publikováno v: Energy Procedia. 101:654-661

The engine and vehicle design in Formula SAE competition has to accomplish a strict regulation. In order to limit the maximum power, an air restrictor of 20mm of diameter is imposed in the intake line. To overcome the limitations caused by the restri

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fc4227fc2309fc3880f2e6f222e67d89

Influence of the combustion chamber geometry on the scavenging of a four-stroke internal-combustion engine during the valve overlap period

Autor: Nicolas-Ivan Hatat, Pascal Chesse, David Chalet, François Lormier

Publikováno v: Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering. 230:1873-1890

The performance of an internal-combustion engine is directly related to the fuel quantity that can react with the oxygen in the air during the exothermic oxidation step, also called combustion. Thus, the amount of fuel introduced is intrinsically lin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1d8950c8a00a2f4f2af0a501961e0b92
https://doi.org/10.1177/0954407015624335

Electromagnetic valve train for gasoline engine exhaust system

Autor: Siqin Chang, Jiangtao Xu, Liang Liu, Jianguo Dai, Xinyu Fan

Publikováno v: International Journal of Automotive Technology. 17:361-367

Electromagnetic valve train (EMVT) in camless engine offers large potential for both part load fuel economy and high load engine torque. However, it is more difficult to be applied on exhaust system than intake system. Because the gas pressure brings

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b98f519073abf8e7411a1fe5e7f082a4
https://doi.org/10.1007/s12239-016-0037-6