Abstract: A water separating apparatus for a fuel system comprises a reservoir and a heat exchanger disposed inside the reservoir. Through a heat exchange process, fuel flowing through the reservoir is heated to melt ice crystals in the fuel and to cause water contaminants in the fuel to precipitate from the fuel. The reservoir includes a coolant inlet, a coolant outlet, a fuel inlet and a fuel outlet, and has a flat side for mounting onto a flat mounting surface. Coolant lines connect the coolant inlet and the coolant outlet to a source of fluid bearing waste heat. The heat exchanger includes at least one tube running between the coolant inlet and the coolant outlet. The heat exchanger also includes an enclosure disposed so as to enclose a portion of the tube and define a pre-heat chamber. Openings in the enclosure provide communication between the fuel inlet and the pre-heat chamber, and between the pre-heat chamber and the fuel outlet.

Abstract: The disclosure describes a fuel system including a fuel line, a fuel filter, and a fuel heater which is connected to the fuel line preferably upstream from the fuel filter. The fuel heater comprises a hollow casing having an inlet for admitting fuel into the casing and an outlet for discharging fuel from the casing. The fuel heater further comprises a heating unit operatively associated with the casing and including an electric heating element disposed within the casing, an electrical connector coupled to the heating element and extending through the casing, and a mechanism mounted to the casing for sensing fuel temperature within the casing.

Abstract: The disclosure describes a heating apparatus for a fuel system having a container which stores the fuel. The heating apparatus comprises a fuel pickup conduit having an inlet, an outlet, and a first portion insertable into the container, the first portion terminating with the inlet. The heating apparatus also comprises a heat exchanging assembly insertable into the container for passing heatable fluid adjacent the first portion of the fuel pickup conduit. Further, the heating apparatus additionally comprises a heating unit including an electrical heating element mounted proximate the fuel pickup conduit and further including a connector for supplying electrical energy to the heating element.