System and method for mitigating cylinder deactivation degradation
US11480120B2 · kind B2 · utility
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11References
12Claims
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Key dates
| Filing date | Feb 10, 2017 |
| Grant date | Oct 25, 2022 |
| Priority date | — |
| Expiry date | Jan 23, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Systems and methods for operating an engine with deactivating and non-deactivating valves are presented. In one example, valves of a cylinder are deactivated in a closed state in response to an indication of degradation of a valve of the cylinder. Further, fuel flow to the cylinder may be stopped via ceasing to inject fuel to the cylinder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.