Stratified scavenging carburetor
US7104253B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2005 |
| Grant date | Sep 12, 2006 |
| Priority date | — |
| Expiry date | Mar 30, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In one presently preferred embodiment a stratified scavenging carburetor has a scavenging air passage with an air control valve and a fuel and air mixing passage with a throttle control valve, and a lost motion coupling associated with the valves to delay opening of the closed air valve until the throttle valve has partially opened from its idle position to an off idle position and preferably thereafter to open the air valve in phased relationship with the throttle valve so that the valves become wide open at substantially the same time. Preferably the coupling has reels associated with the valve and connected by a flexible cord.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.