Fluid injector, assembly and exhaust line comprising such an injector
US11938447B2 · kind B2 · utility
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12Claims
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Assignee
Inventor
Key dates
| Filing date | Jun 28, 2022 |
| Grant date | Mar 26, 2024 |
| Priority date | — |
| Expiry date | Jun 28, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.