Hydrocarbon vapor evacuation system
US6581580B2 · kind B2 · utility
10Cited by
9References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 24, 2001 |
| Grant date | Jun 24, 2003 |
| Priority date | — |
| Expiry date | Jan 24, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M33/02
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A vapor evacuation system that is used to intermittently remove hydrocarbon vapors from vehicle components to an available vapor storage canister using an electrically controlled small flow rate vapor-handling pump. The vapor-handling pump is intermittently turned on and off as a function of ambient temperature or inlet manifold temperature and as a function of time since last engine-on operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.