Fuel filter system

A filter system for use in a fuel system including a fuel reservoir, a fuel pumping apparatus drawing fuel from the reservoir, through the filter system, and a return line whereby fuel is returned from the fuel pumping apparatus, the filter system comprising a first inlet, a first outlet, a fuel filter element interposed between the first inlet and the first outlet, and a temperature sensitive valve having a first open position in which communication is established between the first inlet side of the filter element which communicates with the first inlet and the fuel return line, and a second closed position in which said communication is prevented so that fuel returning, in use, from the pumping apparatus is returned directly to the reservoir, wherein said return line includes a region forming part of said filter system, said region having a port through which said return line can communicate with the first inlet side of the filter element, said port being opened and closed by said temperature sensitive valve, in use, said filter system including a housing containing said filter system element and said temperature sensitive valve, and supporting said first inlet and said first outlet, said housing also including said region of said return line and wherein said temperature sensitive valve is disposed substantially within said return line at said region.