Method for varying the flow rate of fuel in a distributor-type electronic control fuel-injection pump
US5115783A · kind A · utility
15Cited by
5References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 19, 1990 |
| Grant date | May 26, 1992 |
| Priority date | — |
| Expiry date | Dec 19, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method for varying the flow rate of fuel in a distributor-type electronic control fuel-injection pump. A single solenoid valve is used to control the timing of initiating and terminating fuel delivery. A cam is operated under four different modes, a low idle or a low speed/low load zone, a middle load zone, a high load zone, and a governing or high idle zone in that order as the cam is rotated. At the governing or high idle zone, the solenoid valve is closed before the cam is lifted and is opened to control fuel delivery when it is terminated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.