Idle air bypass valve acoustic diverter passage
US6539917B2 · kind B2 · utility
8Cited by
3References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 3, 2001 |
| Grant date | Apr 1, 2003 |
| Priority date | — |
| Expiry date | Jun 29, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M35/10144
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An arrangement for reducing noise produced by an engine idle air bypass valve and passage includes positioning an acoustic diverter at the end of the air bypass passage to force the noise away from exterior surfaces of a downstream chamber and toward the internal cavities of the engine such as a cylinder head. The diverter of the present invention reduces noise without causing restriction of air flow through the air bypass passage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.