Passive venturi pump for leak diagnostics and refueling
US9376991B2 · kind B2 · utility
12Cited by
41References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 24, 2012 |
| Grant date | Jun 28, 2016 |
| Priority date | — |
| Expiry date | Sep 18, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M25/0818
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Systems and methods for operating a hybrid electric vehicle with a passive venturi pump are disclosed. In one example approach, a method comprises: during vehicle motion, passing air through a venturi coupled to the vehicle to generate vacuum; storing the generated in an accumulator; and, in response to a condition, discharging the stored vacuum to a vacuum consuming system of the vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.