Intake duct for an internal combustion engine
US6340011B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 13, 2000 |
| Grant date | Jan 22, 2002 |
| Priority date | — |
| Expiry date | Jul 13, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An air intake duct for an internal combustion engine, which has a plurality of intake tubes 13. In one of the intervening spaces 15 between the intake tubes a working element, especially a filter housing 16, is contained. The latter communicates directly with the crankcase of the internal combustion engine, which is not shown in the drawings. The intake duct 10 is affixed over this connection, while the outlets 24 are joined to the internal combustion engine through resilient or elastic isolating elements. The advantage of the intake duct according to the invention lies in improved accessibility of the filter housing, since by unscrewing the cover 17 the filter insert can easily be replaced. Due to the upright position of the filter housing a positively controlled drainage is furthermore assured. By providing ribs 18a, 18b, between the intake tubes and the filter housing a stiffening of the intake tube is made possible, so that the individual component areas can be made with thinner walls, thereby saving material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.