Transducer device for monitoring of fuel injection
US4295364A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 7, 1979 |
| Grant date | Oct 20, 1981 |
| Priority date | — |
| Expiry date | Sep 7, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L9/0001
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A transducer device is provided which is arranged to be mounted on flow path-defining structure of a fuel injection system, preferably on the outside of a delivery valve housing including a chamber in which a surge of pressure is built up during operation of the injection pump to cause a transducer of the device to develop a high amplitude and high rate of change electrical signal. The device is readily clamped in place and is light in weight with a center of gravity close to the axis of the chamber, the effect of engine vibrations being minimized. The signal from the device and a signal developed at a predetermined rotational position of the engine crankshaft are applied to an instrument which indicates the relative timing of the signals and the RPM.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.