US 12,435,653 B2
Cooling device for reducing agent dosing module
Chan Hwan Choi, Anyang-si (KR); Hyun Seok Kim, Anyang-si (KR); and Seung Tae Lee, Anyang-si (KR)
Assigned to LS MTRON LTD., Anyang-si (KR)
Appl. No. 18/716,416
Filed by LS MTRON LTD., Anyang-si (KR)
PCT Filed Nov. 25, 2022, PCT No. PCT/KR2022/018792
§ 371(c)(1), (2) Date Jun. 4, 2024,
PCT Pub. No. WO2023/113286, PCT Pub. Date Jun. 22, 2023.
Claims priority of application No. 10-2021-0179872 (KR), filed on Dec. 15, 2021.
Prior Publication US 2025/0035025 A1, Jan. 30, 2025
Int. Cl. F01N 3/20 (2006.01)
CPC F01N 3/2066 (2013.01) [F01N 2260/02 (2013.01); F01N 2610/11 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A cooling device for a reducing agent dosing module, the cooling device comprising:
a first cooling part connected to a reducing agent dosing module; and
a second cooling part connected to a cooling fluid line, and configured to receive cooling fluid from the cooling fluid line;
wherein the second cooling part is formed to have an inner diameter larger than an inner diameter of the first cooling part so that bubbles generated due to vaporization of cooling fluid are discharged,
wherein the second cooling part is disposed at a higher position than the first cooling part so that cooling fluid is supplied to the first cooling part by gravity,
wherein a first end of the second cooling part is connected to the cooling fluid line, and a second end of the second cooling part is connected to the first cooling part, and the second cooling part is disposed to be inclined with respect to a horizontal plane perpendicular to a direction in which gravity acts, and is disposed to be inclined continuously downward from the first end of the second cooling part to the second end of the second cooling part, so that the second cooling part is continuously lowered in height, and
wherein an inner diameter of the first cooling part is constant over entire length thereof, and an inner diameter of the second cooling part is constant over entire length thereof, so that a step is formed at a portion where the first cooling part and the second cooling part are connected,
wherein the first cooling part and the second cooling part are respectively in a form of a hollow tube, and
wherein the first cooling part and the second cooling part are coaxially coupled to each other.