CRANKCASE VENTILATION SYSTEM
Patent Information
- Application Number
- DE602017087539
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2017-05-16
- Publication Date
- 2025-01-29
- Estimated Expiration
- 2037-05-16
AI Technical Summary
Existing crankcase ventilation systems in internal combustion engines face challenges in managing fuel leakage into the crankcase during engine standstill, which can lead to startability issues and safety hazards due to the risk of fire or explosion.
A system that includes a closed circuit conduit for guiding crankcase gas to the air inlet guide and an open circuit conduit for venting crankcase gas to the atmosphere, equipped with gas detection means positioned in the air inlet guide or open circuit conduit to detect leaks and a valve arrangement to selectively route crankcase gas between the closed and open circuits.
The system effectively detects and manages crankcase gas leaks during engine standstill, reducing the risk of high gas concentrations externally and ensuring safe engine start-up by preventing combustible gases from reaching the cylinders.