Rotatable valve in a cylinder intake duct
US8430074B2 · kind B2 · utility
4Cited by
19References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2010 |
| Grant date | Apr 30, 2013 |
| Priority date | — |
| Expiry date | Aug 10, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A spark ignition direct injection fuel cylinder for an engine includes a rotatable valve at a curved wall of an intake duct. The rotatable valve provides a variable step in to adjust the degree of tumble airflow while reducing flow restriction to improve engine performance across operating conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.