Electrically controlled fuel injection pump for internal combustion engines in particular unit fuel injector
US5402944A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 28, 1991 |
| Grant date | Apr 4, 1995 |
| Priority date | — |
| Expiry date | Aug 28, 2011 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M59/48
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An electrically controlled fuel injection pump for internal combustion engines having a pump piston disposed and guided in a pump housing and defining a pump chamber and in its pumping stroke pumping fuel, delivered to this pump work chamber by a feed pump to an injection nozzle as long as a quantity control valve blocks the flow of the fuel otherwise overflowing from the pump work chamber via a metering line to a low-pressure chamber. A housing part receiving the quantity control valve and projecting laterally from the pump housing at the level of the pump housing, into which part the metering line leading to the pump work chamber extends, wherein lateral recesses on the projecting housing part are provided, which are engaged in forked fashion by a fastening cuff for the quantity control valve. The fastening cuff being provided with an internal thread and cooperating with a screw sleeve having an external thread.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.