Cold start systems and methods
US9163568B2 · kind B2 · utility
3Cited by
13References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 20, 2009 |
| Grant date | Oct 20, 2015 |
| Priority date | — |
| Expiry date | Jul 7, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A cylinder deactivation system comprises a fuel injection module and a cold start control module. The fuel injection module injects a desired amount of fuel into a cylinder of an engine during engine cranking. The cold start control module maintains an intake valve and an exhaust valve associated with the cylinder in respective closed positions while the desired amount of fuel is injected when at least one of an air temperature and a coolant temperature is less than a predetermined cold start temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.