Fuel injection device with air chamber
US4957241A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 30, 1989 |
| Grant date | Sep 18, 1990 |
| Priority date | — |
| Expiry date | Aug 30, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M69/047
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel injection device for an internal combustion engine comprises an electrically controlled injector having a body removably connected in a passage opening into an engine induction passage. The body has a nose of reduced diameter. A cap is fitted on the nose of the injector and formed with a fuel jet outlet opening. The cap and nose of the injector define an air chamber. Lateral openings of the cap communicate the air chamber with a space formed between the cap and the wall of the passage, connected to an air source. A spacer plate is retained between the cap and the nose and formed with a central calibrated hole surrounding an outlet of the injector for constituting a calibrated fuel and air jet outlet passage. The spacer plate is retained between the nose and the cap in a predetermined position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.