US 11,852,065 B2
Attachment device for a module for dispensing an aqueous solution contained in a tank on board a motor vehicle
Franck Dhaussy, Brussels (BE); Stephane Leonard, Brussels (BE); Laurent Duez, Brussels (BE); Simon Jeanneteau, Brussels (BE); Franck Lecrivain, Brussels (BE); and Yann Sinault, Brussels (BE)
Assigned to Plastic Omnium Advanced Innovation and Research, Brussels (BE)
Appl. No. 17/441,970
Filed by Plastic Omnium Advanced Innovation and Research, Brussels (BE)
PCT Filed Jun. 1, 2020, PCT No. PCT/EP2020/065111
§ 371(c)(1), (2) Date Sep. 22, 2021,
PCT Pub. No. WO2020/240036, PCT Pub. Date Dec. 3, 2020.
Claims priority of application No. 19 05826 (FR), filed on May 31, 2019.
Prior Publication US 2022/0195905 A1, Jun. 23, 2022
Int. Cl. F01N 3/00 (2006.01); F01N 3/20 (2006.01)
CPC F01N 3/2066 (2013.01) [F01N 2530/18 (2013.01); F01N 2610/02 (2013.01); F01N 2610/10 (2013.01); F01N 2610/1406 (2013.01); F01N 2610/1433 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An attachment device configured for a module configured for dispensing an aqueous solution contained in a tank on board a motor vehicle, the attachment device comprising:
a first through-hole suitable for discharging the aqueous solution pumped by a pump,
a second through-hole suitable for supplying the pump with the aqueous solution,
a heater;
an assembly of a pump stator and a heat diffuser, the heat diffuser comprising a base and a first plurality of walls that are substantially vertical with respect to the base and define at least one first internal volume; and
a second plurality of walls that are substantially vertical with respect to the base defines a second internal volume,
wherein the base and/or at least one wall that is substantially vertical with respect to the base comprises a volume for positioning the pump stator and/or a first attaching element for the pump stator and/or a second attaching element for the heater,
wherein the second internal volume is part of the first internal volume,
wherein the second internal volume serves as a housing for the pump stator, and
wherein the assembly, of the pump stator and heat diffuser, is overmolded together with a plastic material.