Apparatus for measuring fuel injection advance angle in diesel engine
US4573347A · kind A · utility
Inventors
Key dates
| Filing date | Apr 9, 1984 |
| Grant date | Mar 4, 1986 |
| Priority date | — |
| Expiry date | Apr 9, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In a fuel injection advance angle measuring apparatus, in which the advance angle is measured on the basis of an injection timing signal produced from, such as, a needle valve lift sensor and a reference timing signal indicative of the reference timing of the engine rotation, in order to remove the noise signal from the signal from the sensor, a masking signal indicating a predetermined period in which the desired component of the injection timing signal is not to be produced, is generated in response to the injection timing signal and the reference timing signal whereby to eliminate the undesired components of the injection timing signal for the measurement of the fuel injection advance angle and to obtain the fuel injection advance angle with high accuracy in measurement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.