Heater device of diesel fuel filter
AssigneeHyundai Motor Company
InventorsChang Ho Ham, Dong Myoung Ryoo
Life of this patent
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Abstract
A heater device of a diesel fuel filter may include a heater housing inserted into a diesel fuel filter, and a heater portion inserted into the heater housing. A plurality of flow-path regions may be formed in the heater portion such that heated fuel passes through the heater portion. Accordingly, heat is transmitted directly from a heater portion including a plurality of heat radiating plates and PTC devices, and thus fuel is rapidly heated and a fuel transfer velocity is increased so as to improve engine starting performance at low temperature, thereby improving marketability and convenience.
Claims8
A heater device of a diesel fuel filter, the heater device comprising:
- a heater housing inserted into the diesel fuel filter;
- and
- a heater portion inserted into the heater housing, wherein a plurality of flow-path regions are formed in the heater portion such that heated fuel passes through the heater portion,
- wherein the heater portion includes:
- a first heat radiating plate and a second heat radiating plate that are vertically arranged and spaced apart from each other by a predetermined interval;
- a first flow-path region formed between a space portion of the heater housing and an external side of the first heat radiating plate;
- a second flow-path region formed between the space portion of the heater housing and an external side of the second heat radiating plate;
- and
- a third flow-path region formed between the first heat radiating plate and the second heat radiating plate, and
- the heater device further comprises an incision portion formed in the second heat radiating plate between the second flow-path region and the third flow-path region,
- fuel passes through in an order of the first flow-path region, the second flow-path region, and the third flow-path region.
A heater device of a fuel filter, the heater device comprising:
- a heater housing inserted into the fuel filter and including an inlet to which fuel is injected, and an outlet through which the fuel is discharged;
- a plurality of flow-path regions forming a zigzagged fuel path, and including a first flow-path region connected to the inlet, a third flow-path region connected to the outlet, and a second flow-path region connecting the first and third flow-path regions to each other;
- a heater portion inserted into the heater housing, and including a plurality of heaters arranged on the third flow-path region and substantially parallel to a direction from the inlet to the outlet and first and second heat radiating plates;
- and
- an incision portion formed in the second heat radiating plate of the heater portion between the second flow-path region and the third flow-path region,
- wherein fuel passes through in an order of the first flow-path region, the second flow-path region, and the third flow-path region.
Dependencies are inferred from the claim text.