Device for adjusting flow through an intake
US5657731A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 22, 1995 |
| Grant date | Aug 19, 1997 |
| Priority date | — |
| Expiry date | Nov 22, 2015 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D9/102
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The invention provides a device for adjusting an intake in accordance with the loading condition in overall speed range including: a plurality of small valves for opening or shutting the intake duct, a plurality of large valves for opening or shutting the intake duct in which the small valves are formed, i.e. each of small valve is inscribed with the corresponding large valve, a first driving means for operating the small valves and a second driving means for operating the large valves, all which can turn in a positive and a negative directions, wherein the small valves are integrally mounted on a shaft of the first driving means and large valve means are unitarily mounted on a shaft of the second driving means, the shaft of the second driving means is a hollow shaft and the shaft of the first driving means is fitted to the hollow shaft through a hollow portion thereof, each shaft rotates independently, and an electronic control unit (ECU) for controlling the driving means according to a load condition in an over-all speed range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.