Engine equipped with breather mechanism
US8978631B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 15, 2010 |
| Grant date | Mar 17, 2015 |
| Priority date | — |
| Expiry date | Aug 19, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01M2013/0044
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Breather mechanism includes a breather passage opening into a crankcase, a breather chamber communicating with the crankcase via the breather passage, and a valve provided in the breather chamber and openable to allow blow-by gas to flow from the crankcase into the breather chamber once inner pressure of the crankcase exceeds a predetermined value. When the engine is placed in a laterally laid-down position, entry, into the breather chamber, of lubricating oil is prevented by the breather passage. When the engine is placed in a vertically upright position, an outlet end portion of the breather passage is located above an inlet end portion of the breather passage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.