Abstract: A priming pump valve for use in conjunction with a fuel system, such as a diesel engine, that does not result in a lag in the fuel flow during normal system operation. The priming pump valve has a control valve movable between a first position for normal operation and a second position for priming that allows for efficient priming of the fuel system when in the priming mode and unrestricted flow of fuel during normal operation of the engine.

Abstract: An improved fuel heating system particularly adapted for fuel oil combustion machines such as diesel powered motor vehicles and stationary generating plants is disclosed. The appratuses include a fuel processing device which is integral or separate from a fuel tank which warms fuel before it is delivered to the fuel consuming device. The apparatuses further include a mechanism for heating fuel within the fuel tank in order to warm it to a flowable condition so that it can be transmitted to the fuel processor for further heating. Several embodiments are described wherein the fuel processor and main fuel reservoir are within the same vessel and separated only by a fluidtight wall. In another embodiment, a fuel processor unit is physically separated from the fuel tank. Various means are described for communicating heat within the fuel processor to the main fuel reservoir including conduits conducting engine coolant and ror or plate type heat conductors.

Abstract: A fluid flow baffle for fuel processors is described particularly adapted for fuel processors of the type having closely adjacent inlet and outlet flow ports. The fluid flow baffle separates incoming fuel from treated fuel to prevent contamination of the fuel processor's filter device by heavy contaminants and water entrained within the incoming fuel. The baffle further improves the thermal efficiency of the fuel processor device by acting as an insulating barrier and by providing optimal flow patterns for the incoming and heated fuel. Several embodiments of the fuel flow baffle are described, one adapted for one type of fuel processor in which fuel flows through the filter element in a radially inward direction. Another embodiment relates to a baffle intended for use in another type of fuel processor having a fuel flow direction in a radially outward direction.