Fuel pump
US5015159A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 1990 |
| Grant date | May 14, 1991 |
| Priority date | — |
| Expiry date | May 17, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S417/902
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A fuel pump including a housing; a motor section provided in the housing which motor section includes an armature and a magnet opposed to the armature with a substantially annular space defined therebetween as a fuel passage, which armature includes a core formed by stacking a plurality of plates and a coil wound around the core; a pump section fixed to a lower end of the housing and connected to the motor section to be driven thereby; a fuel inlet formed in the pump section for sucking a fuel by driving the motor section; a fuel outlet formed at an upper end of the fuel pump for discharging the fuel fed from the fuel inlet through the fuel passage; and a first resin portion impregnated in the core and the coil for suppressing vibration of the armature. The fuel pump having the above construction preferably further includes a second resin portion coated on a surface of at least the first resin portion, which second resin portion has a resistance against the fuel and no influence upon the fuel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.