Diesel fuel recirculation device
AssigneeHyundai Motor Company
InventorYeon Seo Park
Life of this patent
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Abstract
A diesel fuel recirculation device may include a fuel tank configured to store and supply diesel fuel, a main filter connected to the fuel tank and filter diesel fuel to supply the filtered diesel fuel to an engine, and a recirculation member provided in the main filter and be resupplied with high temperature fuel from the engine to supply the resupplied high temperature fuel to the fuel tank or the main filter, such that marketability and usage convenience may be improved by increasing a temperature of the fuel using the high temperature fuel resupplied from the engine to shorten a starting time under low temperature conditions.
Claims8
A diesel fuel recirculation device comprising:
- a fuel tank configured to store and supply diesel fuel;
- a main filter connected to the fuel tank and filter the diesel fuel wherein the filtered diesel fuel is supplied to an engine through the main filter;
- and
- a recirculation member provided in the main filter and resupplied with heated fuel from the engine to supply the resupplied heated fuel to the fuel tank,
- wherein the recirculation member includes:
- an auxiliary filter configured to filter the heated fuel resupplied from the engine;
- and
- a thermal actual valve configured, according to a predetermined temperature of the heated fuel, to supply the heated fuel filtered by the auxiliary filter to the fuel tank or the main filter, and
- wherein the main filter includes:
- an inlet port connected to the fuel tank;
- and
- an outlet port connected to the engine, and
- wherein a phenomenon that paraffin is precipitated in the diesel fuel is prevented by supplying a portion of the diesel fuel recovered from the engine to the auxiliary filter through the thermal actual valve.
Dependencies are inferred from the claim text.