Hybrid vehicle fuel vapor canister
US9797347B2 · kind B2 · utility
0Cited by
20References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2013 |
| Grant date | Oct 24, 2017 |
| Priority date | — |
| Expiry date | Feb 16, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M25/089
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Embodiments for controlling fuel vapors are disclosed. In one example, a method comprises during a purge of a fuel vapor canister, adjusting a heater of the fuel vapor canister based on a rate of a purge flow exiting the fuel vapor canister and a concentration of hydrocarbons released from the fuel vapor canister. In this way, a fuel vapor canister purge efficiency may be increased.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.