Blowby gas ventilation system for an internal combustion engine, and method of using same
US7040306B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 24, 2004 |
| Grant date | May 9, 2006 |
| Priority date | — |
| Expiry date | Aug 24, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01M13/025
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A blowby gas ventilation system for an internal combustion engine capable of preventing oil from being diluted by efficiently and quickly exhausting a blowby gas together with a water content and the like from a crank chamber through forced ventilation of the crank chamber. The blowby gas ventilation system is intended for a four-stroke-cycle internal combustion engine. The system includes a fresh air introduction pipe, through which fresh air is sent from an outside of the internal combustion engine through a throttle portion to a crank chamber. The system also includes a blowby gas return passageway, through which the blowby gas is returned back to a downstream side of an air cleaner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.