Variable tail pipe valve system
US10280824B2 · kind B2 · utility
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20Claims
0Family size
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Key dates
| Filing date | Mar 8, 2017 |
| Grant date | May 7, 2019 |
| Priority date | — |
| Expiry date | Mar 20, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
An exhaust system includes a particulate filter, a variable valve, and a controller communicatively connected to the variable valve. The controller is operative to determine a backpressure caused by the particulate filter in the exhaust system, and control a position of the variable valve as a function of the backpressure caused by the particulate filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.