Fuel injection device
US5357933A · kind A · utility
17Cited by
8References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 22, 1993 |
| Grant date | Oct 25, 1994 |
| Priority date | — |
| Expiry date | Jul 22, 2013 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M59/366
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A solenoid valve is provided in a fuel injection pump fuel supply path. A communication path communicates with each other an armature chamber, which accommodates an armature, and a spill chamber, which accommodates a head of a valve body and is connected to a lower pressure side. When high pressure fuel is spilt to the low pressure side, an orifice in the communication path reduces a high frequency pressure wave propagated from the spill chamber to the armature chamber, thus reducing deformation or corrosion of the solenoid in over a long period of use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.