Patent ID: 6457564
Filing Date: 2002-10-01
Classification: F01M,F16H

Abstract:
A lubrication system for lubricating an internal combustion engine and a gear device driven thereby comprising an engine lubricant sump containing:(a) lubricant, (b) a first flow path for circulating lubricant from said engine sump through said engine and return to said engine sump, (c) a second flow path for supplying lubricant from said engine sump to said gear device, (d) a third flow path for returning lubricant from said gear device to said engine, wherein said third flow path is in fluid communication with an inlet to an engine driven pump whereby said engine driven pump pumps lubricant from said gear device to said engine through said first flow path, (e) a lubricant filter in said first flow path, said second flow path communicating with said first flow path downstream of said filter whereby said filter filters the lubricant passing through both said first flow path and said second flow path, and (f) a heat exchanger in said first flow path for maintaining the temperature of the lubricant passing through said first flow path within a predetermined temperature range, said second flow path communicating with said first flow path downstream of said heat exchanger whereby said heat exchanger also maintains the temperature of the lubricant passing through said second flow path within a predetermined temperature range.