Fuel injection system for internal combustion engine
US5785019A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 29, 1997 |
| Grant date | Jul 28, 1998 |
| Priority date | — |
| Expiry date | Apr 29, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2001/007
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel injection system for an internal combustion engine includes a fuel injection pump injecting a fuel in an amount corresponding to a position of a control rack, a governor including a start spring, a control spring and an idling sub-spring biasing the control rack in a fuel injection amount increasing direction, an adjusting lever adjusting a spring load of the control spring, and a fly weight rotating together with the fuel injection pump and shifting the control rack in a fuel injection amount decreasing direction by a centrifugal force, and a stopper mechanism restricting movement of the control rack in the fuel injection amount increasing direction, wherein the stopper mechanism comprising a stopper opposing to an end portion of the control rack and an elastic body biasing and holding the stopper at a stop position, an elastic force of the elastic body being set to be greater than a sum of a spring load of the start spring and a spring load of the idling sub-spring while the adjusting lever is in an idling position and to be smaller than a sum of the spring load of the start spring, a spring load of the control spring and the spring load of the idling sub-spring while the …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.