Blow-by gas recirculation system for internal combustion engine
US8171922B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2009 |
| Grant date | May 8, 2012 |
| Priority date | — |
| Expiry date | Sep 7, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a blow-by gas recirculation system for an internal combustion engine. An oil separation cover 10 has a surge-tank mounting portion 400 integrally formed therewith in a columnar shape having a cam-shaped cross-section and a height approximately equal to that of an oil separation space OS. The surge-tank mounting portion 400 has a flat upper surface serving as a mounting seat surface 401 capable of coming into surface contact with an attaching seat surface 7a of a surge tank 7. A first opening 403 of a gas passage from a chamber 300 is opened in a vicinity of an opening of a support through-hole 402 on the mounting seat surface 401. Through an operation of joining the seat surface 7a of the surge tank 7 to the mounting seat surface 401 of the surge-tank mounting portion 400 while communicating the first opening 403 with a second opening 7b opened on the attaching seat surface 7a of the surge tank 7, a third gas passage 15 for supplying blow-by gas to an inside of the surge tank 7 is formed in such a manner as to penetrate through the oil separation cover 10 and the surge tank 7.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.