Piston and Valve Deactivation for Improved Part Load Performances of Internal Combustion Engines School of Science and Engineering, Univ. of Ballarat

Format:

Conference/Event

Author/Creator:

Boretti, Boretti, author.

Contributor:

Scalco, Joseph

Conference Name:

SAE 2011 World Congress & Exhibition (2011-04-12 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2011

Summary:

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 a HSDI V8 engine, producing significant savings during light operation

Notes:

Vendor supplied data

Publisher Number:

2011-01-0368

Access Restriction:

Restricted for use by site license