公开(公告)号：US20210156292A1

公开(公告)日：2021-05-27

申请号：US17104060

申请日：2020-11-25

Applicant: FAURECIA SYSTEMES D'ECHAPPEMENT

Inventor： Thibaut CONTREMOULINS ,  Julien ROUSSILHE ,  Morgane GULDNER ,  Sylvain MOLLIER

IPC: F01N13/00 ,  F01N11/00 ,  G01N1/22

Abstract: A sensor head, capable of sampling and maximizing a stream of gas before transmitting the stream of gas to a sensitive element of a sensor, includes a guide and a capsule. The guide is substantially cylindrical according to a first axis, hollow and closed with an exception of a flow inlet comprising two openings facing each other, pierced in the guide along a second axis substantially perpendicular and coplanar to the first axis, and a flow outlet comprising a hole drilled in the guide along the first axis. The capsule is substantially cylindrical along a third axis substantially parallel to the first axis, including the guide, hollow and closed with an exception of a mouth pierced in the generating surface of the capsule according to a fourth axis substantially perpendicular to the first axis and to the second axis and substantially perpendicular and coplanar to the third axis. A sensor, preferably of the photoacoustic type, includes such a head.

公开(公告)号：US20220195906A1

公开(公告)日：2022-06-23

申请号：US17551275

申请日：2021-12-15

Applicant: FAURECIA SYSTEMES D'ECHAPPEMENT

Inventor： Jean-Louis DELEVALLEE ,  Jonathan CANTELOUBE ,  Ludovic PERTUIS ,  Julien ROUSSILHE

IPC: F01N3/20

Abstract: The device for injecting a fluid into an exhaust pipe comprises a fluid reservoir, an enclosure delimiting a fluid heating chamber, and a first injection system configured to inject the fluid from the reservoir into the heating chamber. At least one heating element extends at least partially into the heating chamber and is intended to be in contact with the fluid, with the at least one heating element being configured to heat the fluid. A second injection system is configured to inject the heated fluid from the heating chamber into the exhaust pipe.