Internal combustion engine
US6302067A · kind A · utility
Inventor
Key dates
| Filing date | Nov 23, 1999 |
| Grant date | Oct 16, 2001 |
| Priority date | — |
| Expiry date | Nov 23, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to an unthrottled internal combustion engine of segregating, spark ignited, form, i.e. in which the bulk of the fuel does not begin to mix with the bulk of the air until near the end of the compression stroke, shortly before spark ignition. The invention utilizes a second cylinder in communication with the main cylinder, fuel being delivered to vaporize within the second cylinder. Attached to the second cylinder is a cavity containing the spark ignition device, into which cavity is delivered a controlled quantity of fuel which mixes with air entering into the cavity during the compression stroke of the engine to provide a spark plug with substantially stoichiometric fuel/air mixture at the moment of ignition, irrespective of the output of the engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.