Intake device of an internal combustion engine
US4499868A · kind A · utility
21Cited by
9References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 2, 1982 |
| Grant date | Feb 19, 1985 |
| Priority date | — |
| Expiry date | Aug 2, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An engine comprising an intake port which has a separating wall projecting downwardly from the upper wall of the intake port. The separating wall defines a helical portion, an inlet passage portion tangentially connected to the helical portion, and a bypass passage interconnecting the inlet passage portion to the helical portion. A rotary valve is arranged in the bypass passage and actuated by a vacuum operated diaphragm apparatus. The rotary valve is opened when the amount of air fed into the cylinder of an engine is increased beyond a predetermined value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.