Injector for reductant delivery unit having fluid volume reduction assembly
US10502112B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2017 |
| Grant date | Dec 10, 2019 |
| Priority date | — |
| Expiry date | Dec 23, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A fluid injector, including a fluid inlet, a fluid outlet and a fluid path from the fluid inlet to the fluid outlet; a tube having an end at the fluid inlet; a filter disposed in the tube proximal to the fluid inlet; and a volume reduction member disposed in the tube downstream of the filter, contacting an inner surface of the tube and including a through-bore defining at least a portion of the fluid path, the bore having a smaller diameter than an inner diameter of the tube and the volume reduction member occupying a volume in the tube such that the volume reduction member reduces an amount of space for fluid in the fluid injector. A cap member, in which the filter is disposed, engages with the volume reduction member such that the filter, the volume reduction member and the cap form a single assembly member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.