Method for monitoring crankcase ventilation integrity
US11220939B1 · kind B1 · utility
1Cited by
6References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2020 |
| Grant date | Jan 11, 2022 |
| Priority date | — |
| Expiry date | Sep 21, 2040 |
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 monitoring a crankcase ventilation system. In one example, a method may include diagnosing a breach in a crankcase vent tube based on a regression of measurements of pressure in the crankcase vent tube. The regression allows the pressure measurements to be extended across an entire range of operating air flows and the breach may be identified by comparing the regressed pressure measurements to expected crankcase vent tube pressures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.