Heat shield and gasket for reductant delivery unit
US10677138B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 23, 2018 |
| Grant date | Jun 9, 2020 |
| Priority date | — |
| Expiry date | Mar 23, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A heat shield for a reductant delivery unit (RDU), the RDU including a fluid injector with a fluid inlet and a fluid outlet, and a clamp flange for attachment to a mounting boss of a vehicle exhaust pipe. The heat shield includes a first portion which is attached to the fluid injector so as to at least partly cover the fluid outlet thereof. The first portion serves as a thermal barrier for the fluid injector and a mechanical barrier for preventing particles in the vehicle exhaust pipe from contacting the fluid injector when the RDU is attached to the vehicle exhaust pipe. The heat shield further includes a second portion which extends radially outwardly from the first portion for sealing the attachment between the clamp flange and the mounting boss of the vehicle exhaust pipe when the RDU is attached thereto.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.