Dual fuel supply system
US4437448A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 20, 1982 |
| Grant date | Mar 20, 1984 |
| Priority date | — |
| Expiry date | Dec 20, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S261/08
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Disclosed herein is a fuel supply system comprising a carburetor including an air/fuel induction passage including a main supply jet and a secondary orifice, a first float bowl having an auxiliary outlet and communicating with the main jet, and a first float controlled valve communicable with a source of a first fuel and operable to control supply of the first fuel to the first float bowl, a combined auxiliary float bowl and primer comprising a housing including a second float bowl, a cavity, a duct extending between the cavity and the second float bowl, a second float controlled valve communicable with a source of a second fuel and operable to control supply of the second fuel to the second float bowl, a movable wall located in the cavity and defining a primer fuel chamber which can be varied in volume and which communicates with the duct, a handle connected to the movable wall for displacing the movable wall to vary the volume of the primer fuel chamber, a check valve in the duct permitting flow from the second float bowl and preventing return flow to the second float bowl, and an outlet communicating with the duct between the primer fuel chamber and the check valve, and a contro…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.