Variable geometry intake system for an internal combustion engine
US5740778A · kind A · utility
11Cited by
17References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 22, 1996 |
| Grant date | Apr 21, 1998 |
| Priority date | — |
| Expiry date | Mar 22, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An intake system for a multicylinder internal combustion engine includes a manifold having inlet runners for conducting charge air into the cylinders of an engine, and at least one secondary throttle valve situated within at least one of the inlet runners. An electrically driven motor positions the secondary throttle valve, with the motor being operated by a controller, which senses engine operating parameters including the temperature of an electrically driven motor which powers the secondary throttle valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.