Patent ID: 8469083
Filing Date: 2013-06-25
Classification: F01M,F28F,Y10T

Abstract:
1. A heat exchanger assembly for cooling a liquid, comprising: a heat exchanger include a fluid inlet and a fluid outlet for a liquid to be cooled; a liquid filter that comprises a filter housing; a filter element arranged inside said filter housing; wherein said filter element has a dirty side and said dirty side communicates with said outlet, wherein said bypass connects said inlet to said dirty side of said filter element: a bypass that bypasses the heat exchanger; and a valve controlling flow of the liquid into the heat exchanger or into said bypass; wherein said valve has a valve seat, a valve cone, and at least one spring made of shape memory material, wherein said at least one spring counteracts a liquid pressure existing in said inlet; wherein said valve is inserted into said bypass; wherein said valve is configured as a unit, inserted into an open end of said bypass in a completely assembled state; wherein the shape memory material of said at least one spring of shape memory material exhibits a change of mechanical properties in a range of approximately 60-100 degrees C.; wherein said valve below a limit temperature of approximately 60 to 100 degrees C. has an opening pressure of approximately 0 to 0.4 bar; and wherein said valve above a limit temperature of approximately 60 to 100 degrees C. has an opening pressure of approximately 0.4 to 1.0 bar.