Experimental Study on Hydraulic Pulsation Features of Intelligent Variable Valve System for Auto Energy Saving
Sign Up to like & getrecommendations! Published in 2022 at "Computational Intelligence and Neuroscience"
DOI: 10.1155/2022/5679520
Abstract: The electrohydraulic valve system can realize continuous variable valve timing and lift using the flexibility of liquid. However, the existing electrohydraulic valve systems usually rely on a high-speed solenoid valve to control the on and… read more here.
Keywords: system; variable valve; valve; pressure fluctuation ... See more keywords
Effects of the variable valve lift difference on in-cylinder gas flow in a four-valve gasoline engine
Sign Up to like & getrecommendations! Published in 2019 at "Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering"
DOI: 10.1177/0954407018789321
Abstract: The in-cylinder gas flow is an important factor that affects the engine performance. The appropriate swirl can reduce cycle-to-cycle variations, increase flame propagation speed, and improve the combustion efficiency. Many technologies can induce significant swirl,… read more here.
Keywords: valve lift; difference; variable valve; engine ... See more keywords
Variable valve actuation–based combustion control strategies for efficiency improvement and emissions control in a heavy-duty diesel engine
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Engine Research"
DOI: 10.1177/1468087419846031
Abstract: High nitrogen oxide levels of the conventional diesel engine combustion often requires the introduction of exhaust gas recirculation at high engine loads. This can adversely affect the smoke emissions and fuel conversion efficiency associated with… read more here.
Keywords: engine; exhaust gas; valve actuation; variable valve ... See more keywords
Optimization via genetic algorithm of a variable-valve-actuation spark-ignition engine based on the integration between 1D/3D simulation codes and optimizer
Sign Up to like & getrecommendations! Published in 2022 at "International Journal of Engine Research"
DOI: 10.1177/14680874221099874
Abstract: In this work, a turbocharged spark ignition engine equipped with a variable valve actuation device is investigated to numerically optimize the Brake specific fuel consumption (BSFC) at different loads and speeds by employing a genetic… read more here.
Keywords: variable valve; genetic algorithm; ignition engine; engine ... See more keywords
Simulation and experimental research of hydraulic pressure and intake valve lift on a fully hydraulic variable valve system for a spark-ignition engine
Sign Up to like & getrecommendations! Published in 2018 at "Advances in Mechanical Engineering"
DOI: 10.1177/1687814018773156
Abstract: A fully hydraulic variable valve system based on spark-ignition engine BJ486EQ is introduced in this article, which can provide fully variable valve lifts, valve timing, and valve opening duration. A simulation model of fully hydraulic… read more here.
Keywords: valve system; variable valve; valve; fully hydraulic ... See more keywords
Variable Valve Timing (VVT) Modelling by Lotus Engine Simulation Software
Sign Up to like & getrecommendations! Published in 2021 at "International Journal of Automotive and Mechanical Engineering"
DOI: 10.15282/ijame.17.4.2020.15.0635
Abstract: Variable valve timing (VVT) is an advanced modern technique applied in internal combustion engines by altering the valve lift event timing. This work aims to contribute to the continuing industrial VVT development to improve engine… read more here.
Keywords: variable valve; engine; timing vvt; simulation ... See more keywords
Effect of Multi-Factor Coupling on the Movement Characteristics of the Hydraulic Variable Valve Actuation
Sign Up to like & getrecommendations! Published in 2020 at "Energies"
DOI: 10.3390/en13112870
Abstract: Studies show that the valve lift (VL) of the cam-driven hydraulic variable valve actuation (VVA) can be continuously adjusted in the range of 0–8.2 mm by controlling the opening of the throttling valve. In the… read more here.
Keywords: piston; variable valve; effect multi; valve ... See more keywords
Flow Field Parametric Interpolation Using a Proper Orthogonal Decomposition: Application to the Variable Valve Timing Effect on a Tumble In-cylinder Miller Engine Mean Flow
Sign Up to like & getrecommendations! Published in 2021 at "Energies"
DOI: 10.3390/en14175324
Abstract: The current article presents a method to reconstruct the mean velocity field of a cyclic flow for an input parameter value that has not been measured, allowing for the number of tests to be reduced.… read more here.
Keywords: variable valve; field; engine; proper orthogonal ... See more keywords