Carburetor with fuel metering diaphragm
US10054082B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 13, 2016 |
| Grant date | Aug 21, 2018 |
| Priority date | — |
| Expiry date | Dec 13, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01F23/20
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A carburetor with a fuel and air mixing passage and a fuel delivery system may include a valve actuated by a diaphragm with no penetrations through at least the portion of the diaphragm exposed to a fuel metering chamber. The diaphragm may include at least two convolutions increasing a surface area of the portion of the diaphragm exposed to the fuel metering chamber relative to the surface area of a plane exposed to and covering the fuel metering chamber. A diaphragm may be in the form of a bellows with at least two convolutions. The diaphragm may be made of a suitable polymer or one or more pieces of a thin metal sheet or foil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.