Methods and system for adjusting engine water injection
US10247140B2 · kind B2 · utility
2Cited by
4References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2016 |
| Grant date | Apr 2, 2019 |
| Priority date | — |
| Expiry date | Dec 19, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Methods and systems are provided for water injection at an intake port of an engine toward or away from intake valves in response to engine operating conditions. In one example, a method may include port injecting water away from an intake valve in response to engine knock and port injecting water towards an intake valve in response to engine dilution demand. Further, the method may include adjusting an amount of water injected based on one or more of a change in manifold temperature and a change in exhaust oxygen level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.