Parametric Analysis of Piston Assembly Focusing on Friction Losses Reduction and Fuel Consumption Volkswagen do Brasil Indústria de Veículos Automotores L.

Format:

Conference/Event

Author/Creator:

Loureiro, Loureiro, author.

Contributor:

Pesce, Celso Pupo

Conference Name:

SAE Brasil 2010 Congress and Exhibit (2010-10-05 : Sao Paulo, Brazil)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2010

Summary:

This paper presents a parametric analysis of the piston assembly of an Otto cycle engine, focusing on mechanical efficiency and fuel consumption through the implementation of a numerical model of the piston secondary motion. This model considers a mixed lubrication between the cylinder liner and the piston skirt as well as the piston skirt profile and surface waviness, being able to calculate the hydrodynamic and contact friction forces and the entire piston trajectory through the course of the cylinder. The studied parameters include the connecting rod length, the piston skirt waviness and the piston off-set. A comparative analysis is finally made using the results piston secondary motion inside the cylinder bore, the hydrodynamics and contact forces as well as the friction force between the piston skirt and the cylinder liner as a function of the crankshaft angle

Notes:

Vendor supplied data

Publisher Number:

2010-36-0213

Access Restriction:

Restricted for use by site license