公开(公告)号：US11938447B2

公开(公告)日：2024-03-26

申请号：US17851459

申请日：2022-06-28

Applicant: FAURECIA SYSTEMES D'ECHAPPEMENT

Inventor： Bruno Sertier

IPC: B01D53/94 ,  B01F23/213 ,  B01F25/30 ,  F01N3/20 ,  F01N13/10

CPC classification number: B01D53/9431 ,  B01D53/9418 ,  B01F23/2132 ,  B01F25/30 ,  F01N3/2066 ,  F01N13/10 ,  F01N2260/02 ,  F01N2260/024 ,  F01N2570/18 ,  F01N2610/02 ,  F01N2610/08 ,  F01N2610/11 ,  F01N2610/1453 ,  F01N2610/1473 ,  F01N2900/1406 ,  F01N2900/1616 ,  F01N2900/1806 ,  F01N2900/1808 ,  F01N2900/1821

Abstract: An injector is provided to inject an aqueous urea solution into an exhaust line. The injector comprises a single fluid inlet, an injection passage, fluidly connecting the inlet to the injection port, and a shut-off device for the injection port. The shut-off device further comprises an actuator that is configured to selectively move a shutter between open and closed positions. A cooling passage is fluidly connected to the injection passage and is configured to cool the actuator. A fluid pressure regulator is interposed in the cooling passage.