Fuel metering valve
US4266571A · kind A · utility
9Cited by
4References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 23, 1979 |
| Grant date | May 12, 1981 |
| Priority date | — |
| Expiry date | Feb 23, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86879
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel metering valve for fuel injection to an internal combustion engine, comprising a rotary valve piston movable in a valve cylinder and having a spiral groove cooperating with a number of spaced valve ports in the cylinder, each port of triangular cross-section. Fuel is admitted to one end of the spiral groove and delivered through the ports in the cylinder. Rotation of the piston progressively opens the ports simultaneously.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.