Patent · US Expired

Direct injection gaseous fuel engine with ignition assist

US7077115B2 · kind B2 · utility

5Cited by
14References
21Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 10, 2005
Grant dateJul 18, 2006
Priority date
Expiry dateJun 10, 2025

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02T10/30
  • WIPO fieldEngines, pumps, turbines
  • WIPO sectorMechanical engineering

Abstract

An internal combustion engine and a method of operating same are provided with direct injection of gaseous fuel into a combustion chamber and an ignition assist apparatus disposed within the combustion chamber. An ignition assist apparatus disposed within the combustion chamber comprises an electric incandescent ignitor with a sleeve disposed around the ignitor and a catalytic alloy. The catalytic alloy comprises a first catalytic element with a greater affinity for oxygen than that of a second catalytic element, and the second catalytic element having a greater affinity for the fuel than that of the first catalytic element.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.