Intake manifold with a heated PCV passage
US6390080B1 · kind B1 · utility
17Cited by
5References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2001 |
| Grant date | May 21, 2002 |
| Priority date | — |
| Expiry date | Sep 28, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An intake manifold 7 for an internal combustion engine is provided which has an intake venturi passage 34 for throttled passage of filtered air into a plenum 44. A crankcase ventilation passage 70 is provided having a first end 72 intersecting with the venturi passage 34 and a second end 74 intersecting with an outer boundary of the manifold. A heat pipe 82 is adjacent a major portion of the crankcase ventilation passage 70 between the first and second ends 72, 74 for transfer of thermal energy to prevent freeze up in the crankcase ventilation passage 70.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.