Variable air intake pipe length
US7210444B2 · kind B2 · utility
2Cited by
8References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 16, 2003 |
| Grant date | May 1, 2007 |
| Priority date | — |
| Expiry date | May 16, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An air intake system for an internal combustion engine has at least one air box and a short duct for each cylinder. Each duct can be extended to provide higher torque at low speed. At high speed, the shorter duct length can be selectively provided for enhanced engine performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.