David S Rowland

US Patent:

59709286, Oct 26, 1999

Filed:

Oct 28, 1998

Appl. No.:

9/181401

Inventors:

Richard A. Smietanski - Lockport IL
David L. Rowland - Burr Ridge IL

Assignee:

Navistar International Transportation Corp - Chicago IL

International Classification:

F01P 322

US Classification:

123 4154

Abstract:

An internal combustion engine includes a spaced apart surge tank, the surge tank being an integral component of a pressurized liquid engine cooling system. A first conduit fluidly couples the surge tank to a component of the pressurized liquid engine cooling system. The conduit has an internal fluid passageway defined therein. The conduit is heat responsive, an application of heat to the conduit acting to effect a contraction of the fluid passageway. Further, a method of controlling fluid flow in a conduit connecting the surge tank to a component of a pressurized liquid engine cooling system, comprises the steps of: forming the conduit of a heat responsive material; flowing a fluid through the conduit; running the engine to an elevated fluid temperature; and contracting the conduit fluid passageway responsive to the heating of the conduit caused by the fluid flow therein.