Tuned manifold
US4926802A · kind A · utility
3Cited by
1References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 16, 1988 |
| Grant date | May 22, 1990 |
| Priority date | — |
| Expiry date | Dec 16, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A manifold for a bank of four cylinders of an engine comprises four primary tracts each leading to a respective cylinder, and two secondary tracts each connected at a respective one of two branching points to a respective pair of primary tracts which lead to cylinders of which the combustion cycles are in antiphase. The two branching points are arranged contiguous to one another to form a decoupling chamber between which there is disposed a valve connecting the two branching points. The resonant frequency of the manifold can be changed by opening and closing the valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.