Pre-adjustable fueling system for dual fuel engine
US5775309A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 14, 1997 |
| Grant date | Jul 7, 1998 |
| Priority date | — |
| Expiry date | Jul 14, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/30
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fuel control unit which is formed in a housing such as a load block or carburetor has a passageway with a fuel inlet at one end thereof and a fuel outlet at the other end thereof. A pair of adjusting valves, one for adjusting the amount of fuel flow from a first fuel source such as natural gas and the other for adjusting the amount of fuel flow from a second fuel source such as propane are mounted in the passageway. The valves are positioned to set the sizes of metered passages and are preadjusted to provide the desired fuel flow to provide a proper air to fuel ratio for the fuel from each source. The passageway is alternatively set for proper operation with one or the other fuel sources either by manually positioning a shuttle valve or actuating a solenoid which drives the shuttle valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.