Method for crankcase ventilation in a boosted engine
US10704477B2 · kind B2 · utility
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38References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2018 |
| Grant date | Jul 7, 2020 |
| Priority date | — |
| Expiry date | Sep 5, 2038 |
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 enhancing crankcase ventilation in a boosted engine. During boosted conditions, a crankcase may be ventilated via vacuum generated at an aspirator coupled in a compressor bypass passage. However, when the aspirator is plugged, pressure in the crankcase may be relieved by flowing crankcase gases through an aspirator bypass passage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.