Combustion engines
US6705267B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 2001 |
| Grant date | Mar 16, 2004 |
| Priority date | — |
| Expiry date | May 22, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M35/1233
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Engine safety features include an intake silencer defining an internal volume sized to help attenuate air pressure fluctuations generated within the carburetor and engine and transmitted back through the entering combustion air, and also functions as a flame arrester. An internal drip well collects fuel droplets to be siphoned through a hose back to the engine intake system for combustion. The carburetor bowl operates to allow gas and relatively safe vapor out of the carburetor during venting, but disallows liquid fuel from flowing out of the carburetor through the vent. A ball check valve drain disposed in an air intake enables suction of liquid fuel from the silencer into the intake manifold but inhibits suction of air. These features are useful modifications of commercially available engines to improve their suitability for marine applications such as on board electrical power generation, for example.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.