Patent ID: 6379201
Filing Date: 2002-04-30
Classification: B63H,F01P,F02B,Y10T

Abstract:
A marine engine cooling system, comprising:a valve having first, second, and third ports, said valve having a cavity in fluid communication with said first, second, and third ports; a ball disposed within said cavity, the position of said ball within said cavity being a function of forces of gravity and the movement of fluid through said cavity; a pump having an outlet connected in fluid communication with said first port; a fluid conducting component connected in fluid communication between said pump and said third port, said ball being movable upward within said cavity to at least partially block fluid flow from said first to said second ports when fluid pressure at said first port is higher than fluid pressure at said second port, fluid communication between said second and third ports remaining unaffected by movement of said ball within said cavity, a fluid path from said second port to said first port remaining open when fluid pressure at said first port is not greater than fluid pressure at said second port.