Crankcase ventilation system and diagnostic method
US10871129B1 · kind B1 · utility
5Cited by
1References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2019 |
| Grant date | Dec 22, 2020 |
| Priority date | — |
| Expiry date | Jun 24, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Methods and systems are provided for diagnosing a positive crankcase ventilation (PCV) system. In one example, a PCV system diagnostic method is provided that includes a determining a fault condition in a positive crankcase ventilation (PCV) system by comparing a pressure sampled from a pressure sensor positioned on a clean side of an oil separator coupled to a crankcase with a modeled pressure representing an expected pressure on the clean side of the oil separator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.