Fuel injection pump for internal combustion engines
US4889096A · kind A · utility
11Cited by
7References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 4, 1989 |
| Grant date | Dec 26, 1989 |
| Priority date | — |
| Expiry date | Apr 4, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M59/366
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel injection pump formed as a radial piston pump having an encompassing cam ring, which drives pump pistons and a feed piston, which feed piston is embodied as a feed pump and is urged by a spring in the direction of the cam race. This arrangement results in a small size for the pump, in which sealing problems are substantially reduced and only a small idle fuel volume must be moved. By means of this fuel injection pump, a relatively high fill pressure in a pump work chamber is attained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.