A Novel Mechanism for Piston Deactivation Improving the Part Load Performances of Multi Cylinder Engines
Abstract
Cylinder deactivation has been proposed so far for improved part load operation of large gasoline engines. In all this application, the cylinder deactivation has been achieved keeping the intake and exhaust valves closed for a particular cylinder, with pistons still following their strokes. The paper presents a new mechanism between the piston and the crankshaft to enable selective deactivation of pistons, therefore decoupling the motion of the piston from the rotation of the crankshaft. The reduced friction mean effective pressure of the new technology enables the use of piston deactivation in large engines not necessarily throttle controlled but also controlled by quantity of fuel injected. Results of performance simulations are proposed for V8 gasoline and Diesel engines producing significant savings during light operation, larger for the gasoline but still substantial for the Diesel. © 2013 Springer-Verlag Berlin Heidelberg.
Recommended Citation
A. A. Boretti and J. Scalzo, "A Novel Mechanism for Piston Deactivation Improving the Part Load Performances of Multi Cylinder Engines," Lecture Notes in Electrical Engineering, vol. 189 LNEE, no. VOL. 1, pp. 3 - 17, Springer, Jul 2013.
The definitive version is available at https://doi.org/10.1007/978-3-642-33841-0_1
Department(s)
Mechanical and Aerospace Engineering
Keywords and Phrases
Cylinder deactivation; Fuel economy; Internal combustion engines; Part load
International Standard Book Number (ISBN)
978-364233840-3
International Standard Serial Number (ISSN)
1876-1119; 1876-1100
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Springer, All rights reserved.
Publication Date
04 Jul 2013
