US 9,810,181 B2
Heater device of diesel fuel filter
Chang Ho Ham, Ansan-si (KR); and Dong Myoung Ryoo, Yongin-si (KR)
Assigned to HYUNDAI MOTOR COMPANY, Seoul (KR)
Filed by HYUNDAI MOTOR COMPANY, Seoul (KR)
Filed on May 20, 2015, as Appl. No. 14/717,905.
Claims priority of application No. 10-2014-0158996 (KR), filed on Nov. 14, 2014.
Prior Publication US 2016/0138534 A1, May 19, 2016
Int. Cl. F02M 31/125 (2006.01); F02M 37/22 (2006.01)
CPC F02M 31/125 (2013.01) [F02M 37/223 (2013.01); Y02T 10/126 (2013.01)] 8 Claims
OG exemplary drawing
 
1. 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.