Rate tube measurement system
US7080550B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 13, 2004 |
| Grant date | Jul 25, 2006 |
| Priority date | — |
| Expiry date | Aug 13, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M65/003
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A rate tube measurement system for measuring injected fuel and a method thereof are disclosed. In one embodiment, the system includes a fixture assembly, a rate tube fluidically connected to the fixture assembly to receive fuel injected by the fuel injector during, a pressure sensor positioned upstream of the rate tube that is adapted to measure pressure changes in the injected fuel and provide a pressure output, a flow meter that measures flow of injected fuel and provides a flow output indicative of the measured fuel flow, and a computing device that processes the duration of actuation, the pressure output and the flow output to determine injection information such as fuel injection quantity, variation, and rate shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.