Combustion chamber system with obstacles for use within combustion-powered fastener-driving tools, and combustion-powered fastener-driving tools having combustion chamber system incorporated therein
US6860243B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 18, 2002 |
| Grant date | Mar 1, 2005 |
| Priority date | — |
| Expiry date | Jun 18, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25C1/08
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A combustion chamber system, for use within a combustion-powered fastener-driving tool, comprises a dual combustion chamber system comprising a pre-combustion chamber and a final combustion chamber. The pre-combustion chamber is characterized by a high aspect ratio and has different obstacles fixedly incorporated therein for selectively retarding and enhancing the rate of burn and the rate of speed of the flame front propagating through the pre-combustion chamber. In addition, an obstacle, having a predetermined solid geometrical configuration is disposed within the final combustion chamber at a position immediately disposed downstream of a port fluidically interconnecting the pre-combustion chamber to the final combustion chamber so as to cause the flame front to diverge and split into multiple components which flow radially outwardly throughout the final combustion chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.