Low emission cylinder cut-out idle system
US5195485A · kind A · utility
14Cited by
2References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 21, 1992 |
| Grant date | Mar 23, 1993 |
| Priority date | — |
| Expiry date | Apr 21, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D17/02
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The invention is directed to reducing unburned hydrocarbons during engine idling. During idling, one cylinder bank of an engine is alternately deactived by fuel cut-off structure with another cylinder bank. Therefore, one bank works twice as hard and consequently produces much lower emissions. A timer alternates between the cylinder banks anywhere from fifteen seconds to four minutes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.