Air intake system for a fuel-injection engine
US5167211A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 1992 |
| Grant date | Dec 1, 1992 |
| Priority date | — |
| Expiry date | Mar 30, 2012 |
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 a fuel injection engine having cylinders equipped with a swirl port and a conventional straight port. The air intake system comprises a swirl control valve for opening or closing the inlet air passage to the straight port, and further comprises an adapter piece installed in the division wall separating the inlet air passages into the swirl port and the straight port. An aperture communicating both inlet air passages is formed in the adapter piece, and the size thereof is optimized in consideration of the size of an air induction hole disposed in the swirl control valve, to thereby obtain a larger operation area of the air fuel ratio of the lean air fuel mixture supplied to the engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.