Trajectory of a Ringless Piston within the Cylinder of an Internal Combustion Engine with a Crosshead Design Fluid Mechanics Dept. General Motors Research Laboratories

Format:

Conference/Event

Author/Creator:

Mourelatos, Zissimos P., author.

Conference Name:

SAE International Congress & Exposition (1988-02-29 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1988

Summary:

A theoretical analysis is presented for calculating the trajectory of a ringless piston within the cylinder clearance of an I.C. engine with a crosshead design. The flexible polytope unconstrained minimization method is used to find the equilibrium between the piston rod structural elasticity and the gas-film hydrodynamics at the piston-cylinder interface. It was found that even when the crosshead bearing is not concentric with the cylinder (id est, there is an initial eccentricity between the piston and cylinder centerlines), the piston does not touch the cylinder wall during an engine cycle. However, this happens only when a carefully designed piston skirt profile and piston rod length and diameter are used

Notes:

Vendor supplied data

Publisher Number:

880194

Access Restriction:

Restricted for use by site license