Fuel property detection apparatus
US9546614B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 19, 2015 |
| Grant date | Jan 17, 2017 |
| Priority date | — |
| Expiry date | Apr 17, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/30
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel property detection apparatus detects fuel properties based on cetane number and density of a tested fuel. Tested fuel is examined in terms of ignition timing, and, when the tested fuel has an ignition timing earlier than a threshold, the tested fuel is identified as having a standard cetane number. When the tested fuel has an ignition timing later than the threshold, the tested fuel is identified as having a low cetane number. An advance angle of the ignition timing is increased for yielding a greater ignition timing difference between a light property fuel and a heavy property fuel, and, in such manner, the difference therebetween is detected. When an advancement of the ignition timing is greater than a threshold, the fuel property is identified as heavy, and, when an advancement of the ignition timing is smaller than the threshold, the fuel property is identified as light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.