Patent ID: 9163596
Filing Date: 2015-10-20
Classification: F02M,Y10T

Abstract:
1. A thermal recirculation valve that is mountable on a fuel filtration module having a fuel inlet and a fuel outlet, comprising: a valve housing; a thermal recirculation valve inlet formed in the valve housing that in use receives heated fuel from an engine; a thermal recirculation valve outlet formed in the valve housing that is fluidly connected to the thermal recirculation valve inlet via a first fluid passage and that in use is fluidly connected to a fuel tank; a fuel return passage formed in the valve housing, the fuel return passage having a fuel return passage inlet and a fuel return passage outlet, the fuel return passage inlet is fluidly connected to the first fluid passage, the fuel return passage inlet includes a valve seat, and in use the fuel return passage outlet is fluidly connected to the fuel outlet of the fuel filtration module; a flow control valve disposed in the fuel return passage that controls flow of fuel through the fuel return passage, the flow control valve includes a sealing end; the flow control valve has a first position where the sealing end is engaged with the valve seat to control the flow of fuel from the first fluid passage into the fuel return passage and a second position where the sealing end is not engaged with the valve seat to permit unrestricted flow of fuel through the fuel return passage inlet from the first fluid passage into the fuel return passage and to the fuel return passage outlet; and a thermal wax element connected to the flow control valve to move the flow control valve between the first position and the second position, the thermal wax element is positioned so that in use the thermal wax element can be immersed in fuel in the fuel outlet of the filtration module.