A filtration system for a fuel system for a marine vessel engine. The system comprising: an inlet for fluid connection to a settling tank; an outlet for fluid connection to a service tank; and an arrangement of plural primary filtration devices The arrangement is fluidly connected between the inlet and outlet so that fuel flowing from the settling tank via the inlet to the service tank via the outlet passes through at least one of the primary filtration devices. The system is configured so that each respective primary filtration device operates, independently of each other primary filtration device in: a first mode, in which the fuel flows in a first direction through a filter of the respective primary filtration device to remove contaminants from the fuel, or a second mode, in which a fluid flows through the filter in a second direction, opposite the first direction, to dislodge the contaminants.

A method of improving fuel efficiency in a diesel fuel internal combustion engine on a vehicle includes providing a combustion system including a fuel tank, an engine, and a fuel line disposed between the fuel tank and the engine. A heat exchanger is positioned on the fuel line between the fuel tank and the engine. Working thermal fluid is passed from a reservoir through the heat exchanger while fuel is passed through the heat exchanger, increasing the temperature of the fuel passing through the heat exchanger. A vibration isolation mount is installed between the heat exchanger and the vehicle, thereby reducing vibration of the heat exchanger during use of the vehicle. Heated fuel from the heat exchanger is delivered to the engine, improving the fuel efficiency of the engine by burning the heated fuel.

A method of improving fuel efficiency in a diesel fuel internal combustion engine on a vehicle includes providing a combustion system including a fuel tank, an engine, and a fuel line disposed between the fuel tank and the engine. A heat exchanger is positioned on the fuel line between the fuel tank and the engine. Working thermal fluid is passed from a reservoir through the heat exchanger while fuel is passed through the heat exchanger, increasing the temperature of the fuel passing through the heat exchanger. A vibration isolation mount is installed between the heat exchanger and the vehicle, thereby reducing vibration of the heat exchanger during use of the vehicle. Heated fuel from the heat exchanger is delivered to the engine, improving the fuel efficiency of the engine by burning the heated fuel.

A filter assembly comprising a housing, a filter, a heater, hose fittings, a heat bridge, and insulators. The housing defines interior and exterior regions communicating through apertures. The filter separate the housing into a region upstream of the filter comprising an aperture, and a region downstream of the filter comprising an aperture. The heater extends into the interior region. The hose fittings are each coincident with an aperture and are formed of a material having a high thermal conductivity. The heat bridge is formed of a material having a high thermal conductivity and thermally connects the heater to the hose fittings. The insulators each are formed of a material having a low thermal conductivity, and each at least partially cover a hose fitting.

A filter assembly comprising a housing, a filter, a heater, hose fittings, a heat bridge, and insulators. The housing defines interior and exterior regions communicating through apertures. The filter separate the housing into a region upstream of the filter comprising an aperture, and a region downstream of the filter comprising an aperture. The heater extends into the interior region. The hose fittings are each coincident with an aperture and are formed of a material having a high thermal conductivity. The heat bridge is formed of a material having a high thermal conductivity and thermally connects the heater to the hose fittings. The insulators each are formed of a material having a low thermal conductivity, and each at least partially cover a hose fitting.

A refiner device for refining of a liquid, wherein the refiner device includes a housing provided with a liquid inlet for unrefined oil or fuel, a liquid outlet for refined oil or fuel, an air inlet for supplying a flow of air into the housing, and an air outlet for discharging air and contaminants removed from the liquid. The refiner device further includes a liquid receiving plate arranged inside the housing, the refiner device arranged such that when liquid has passed through the liquid inlet during operation of the device, the liquid is contacted with an upper surface of the liquid receiving plate before it reaches the liquid outlet, and at least one heating element arranged to directly or indirectly heat the liquid while the liquid is in contact with the liquid receiving plate. The refiner device further includes a hollow air-guiding member arranged at the liquid receiving plate.

A refiner device for refining of a liquid, wherein the refiner device includes a housing provided with a liquid inlet for unrefined oil or fuel, a liquid outlet for refined oil or fuel, an air inlet for supplying a flow of air into the housing, and an air outlet for discharging air and contaminants removed from the liquid. The refiner device further includes a liquid receiving plate arranged inside the housing, the refiner device arranged such that when liquid has passed through the liquid inlet during operation of the device, the liquid is contacted with an upper surface of the liquid receiving plate before it reaches the liquid outlet, and at least one heating element arranged to directly or indirectly heat the liquid while the liquid is in contact with the liquid receiving plate. The refiner device further includes a hollow air-guiding member arranged at the liquid receiving plate.

A fuel heating apparatus including a heat exchanger body having a first removable end plate, a main body, and a second removable end plate opposite the first removable end plate. The first and second removable end plates are secured to opposing sides of the heat exchanger main body by a plurality of threaded fasteners. The first removable end plate includes a fuel inlet line and a thermal fluid inlet line, and the second removable end plate includes a fuel outlet line and a thermal fluid outlet line. The main body includes a plurality of interior first fluid pathways and a plurality of interior thermal fluid pathways defined therein, the interior first fluid pathways being responsible for connecting the fuel inlet line to the fuel outlet line and the interior thermal fluid pathways being responsible for connecting the thermal fluid inlet line to the thermal fluid outlet line.

A fuel heating apparatus including a heat exchanger body having a first removable end plate, a main body, and a second removable end plate opposite the first removable end plate. The first and second removable end plates are secured to opposing sides of the heat exchanger main body by a plurality of threaded fasteners. The first removable end plate includes a fuel inlet line and a thermal fluid inlet line, and the second removable end plate includes a fuel outlet line and a thermal fluid outlet line. The main body includes a plurality of interior first fluid pathways and a plurality of interior thermal fluid pathways defined therein, the interior first fluid pathways being responsible for connecting the fuel inlet line to the fuel outlet line and the interior thermal fluid pathways being responsible for connecting the thermal fluid inlet line to the thermal fluid outlet line.

A filter assembly comprising a housing, a filter, a heater, hose fittings, a heat bridge, and insulators. The housing defines interior and exterior regions communicating through apertures. The filter separate the housing into a region upstream of the filter comprising an aperture, and a region downstream of the filter comprising an aperture. The heater extends into the interior region. The hose fittings are each coincident with an aperture and are formed of a material having a high thermal conductivity. The heat bridge is formed of a material having a high thermal conductivity and thermally connects the heater to the hose fittings. The insulators each are formed of a material having a low thermal conductivity, and each at least partially cover a hose fitting.